Zhone Imacs 200 Users Manual IMACs200

IMACS-200 to the manual 1708342c-95cd-45a9-8b1b-a946b1225847

2015-02-03

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IMACS-200
System Reference Guide

October 2007
Document Part Number: 830-01760-01 Revision A2

Release 2.0.0

Zhone Technologies
@Zhone Way
7001 Oakport Street
Oakland, CA 94621
USA
510.777.7000
www.zhone.com
info@zhone.com

COPYRIGHT ©2000-2007 Zhone Technologies, Inc. and its licensors. All rights reserved.
This publication is protected by copyright law. No part of this publication may be copied or distributed, transmitted, transcribed,
stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic,
mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission from Zhone
Technologies, Inc.
AccessNode, BAN, GigaMux, IMACS, MALC, Raptor, SLMS, Z-Edge, Zhone, ZMS, and the Zhone logo are trademarks of
Zhone Technologies, Inc.
Zhone Technologies makes no representation or warranties with respect to the contents hereof and specifically disclaims any
implied warranties of merchantability, non infringement, or fitness for a particular purpose. Further, Zhone Technologies reserves
the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Zhone
Technologies to notify any person of such revision or changes.

Product Description

Product Description
Release 2.0.2 is the fifth software release for the IMACS-200 platform. The IMACS-200
offers a sub-set of the traditional IMACS interfaces optimized for use in smaller locations. It
also is designed to operate over an extended temperature range such that it can be installed in
locations that do not provide a controlled environment. The same "look and feel" of the
IMACS has been maintained for this new product offering so that those familiar with the
IMACS product line will quickly be able to configure and successfully deploy the
IMACS-200. Highlights of this new product offering are outlined below.

Features Delivered in Previous Releases
1.0.0
•

Data capability: Four LD-SRU ports.

•

Voice ports: Four 2-wire E&M transmit only (TO) and four FXS ports.

•

Ethernet and RS-232 craft ports

•

WAN capability for Four T1 interfaces.

•

Two V.35 interfaces.

•

Four alarm outputs and four external telemetry inputs.

•

Two Optical HSU ports capability is offered as an option conforming to IEEE 37.94
Standard.

•

Redundant power supplies of -48VDC, 120VAC or 220VAC are offered as an option.

1.0.1
•

Support for E&M Type I and Type II signaling.

•

E&M test screen.

•

IP Daisy-chaining.

•

HSU loop-back capability.

•

WAN to WAN trunk signaling to support two IMACS-200’s worth of DS0’s.

1.0.2
•

Security enhancement with the introduction of a login log event.

•

Fast Circuit Restore

•

Allow spaces in the Node ID field

•

Main screen notification of individual port states.

•

Selection of DXS and CSU WAN functions.

Product Description

Features introduced in this Release (2.0.0)
Running Head

•

Model No.

Allow FXS gain to be as high as +6.5 dB.

1.0.3

•

E&M signalling support for Type IV and Type V.

•

SNMP support for Online (must use version 2.0.0 of Online Software).

•

Support for E1 signaling on the WAN facilities

•

Introduction of the SA4 management channel bit for E1 customers.

•

IPR (IP Routing) capabilities.

•

Remote upgrade from EMS (requires use of 2.0.0 Online Software)

Features introduced in this Release (2.0.0)
•

Optical WAN daughter card as an option.

•

125 VDC version of the product.

Notable System Improvements
In addition to the feature content described above, some other system improvements have
been introduced. They include, but are not limited to, the following:
•

None.

IMACS-200 Initialization and Control
The IMACS-200 initializes and controls the system on power up. It performs the following
functions:

•

Initializes the system upon power-up, and runs a self-test on all ports.

•

Polls all ports in the system to determine their operating status.

•

Processes all incoming operator commands and displays the responses in a series of
operator interface screens for each port in the system. The operator interface system
(local VT-100 terminal, remote computer, or network management system) connects to
the Serial Interface port, which sends these commands for processing.

•

Includes circuitry that allows you to cross-connect DS0 time slots between T1 lines
connected to system WAN ports. Refer to the DS0 time slot assignment operations.

•

Includes a test pattern generator for T1 line test purposes.

Product Description

System Reference Guide

•

Enables Ethernet connection for remote management, configuration and downloading of
host code via a 10baseT Ethernet port. To setup the Ethernet port, see “Setting Up Remote
Connectivity” on page 21 of Chapter 4, General Features. To download and activate new
software, see “Loading the Software Image Using the Ethernet Port” on page 40 of
Chapter 4, General Features.

System Reference Guide
This System Reference Guide assists technicians in unpacking, assembling, installing,
configuring, and operating the integrated access device.
Chapter 1. System Overview
Chapter 2. System Installation
Chapter 3. System Configuration and Operation
Chapter 4. General Features
Chapter 5. WAN Ports
Chapter 6. FXS Ports
Chapter 7. E&M Ports
Chapter 8. Sub Rate Data Ports (SRU)
Chapter 9. High Speed Data Ports (HSU)
Chapter 10. Optical High Speed Data Ports (OHSU)
Chapter 11. Alarms
Chapter 12. IP Routing
Chapter 13. Optical WAN board (OWAN).
Chapter 14. System Testing and Diagnostics
Appendix A. System Specifications
Appendix B. Error Messages
Glossary

Product Description

iii

Technical support
Running Head

Model No.

Technical support
If you require assistance with the installation or operation of your product, or if you
want to return a product for repair under warranty, contact Zhone customer service.
The contact information is as follows:
E-mail
Telephone (North America)
Telephone (International)
Internet

support@zhone.com
877-ZHONE20
510-777-7133
www.zhone.com/support

If you purchased the product from an authorized dealer, distributor, Value Added
Reseller (VAR), or third party, contact that supplier for technical assistance and
warranty support.

Service Requirements
If the product malfunctions, all repairs must be performed by the manufacturer or a
Zhone-authorized agent. It is the responsibility of users requiring service to report the
need for service to Zhone customer service.

Safety Information and Precautions
The equipment is designed and manufactured in compliance with the European Safety
Standard EN60950 and the Unites States UL60950 Safety Standards. However, the following
precautions should be observed to ensure personal safety during installation or service, and
prevent damage to the equipment or equipment to be connected.
Read and follow all warning notices and instructions marked on the product or included in this
Reference Guide.
Only qualified technicians should perform these tasks.
1. Never install telephone wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the jack is specifically designed
for wet locations.
3. Never touch uninsulated telephone wires or terminals unless the telephone line has
been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
5. See the UL Statement for Voice ports.

Product Description

Safety Information and Precautions

6. Never attempt to open the case.
7. The AC versions of this product is intended to be used with a three-wire grounding type
plug - a plug which has a grounding pin. This is a safety feature. Equipment grounding
is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug
by modifying the plug or using an adapter.
Prior to installation, use an outlet tester or a voltmeter to check the AC receptacle for
the presence of earth ground. If the receptacle is not properly grounded, the installation
must not continue until a qualified electrician has corrected the problem. If a three-wire
grounding type power source is not available, consult a qualified electrician to
determine another method of grounding the equipment.
The DC versions of this product must be connected properly with the -VDC and return
(RTN) leads. The grounding screw provided on the right rear of the chassis should be
connected to frame ground.
8. Slots and openings in the cabinet are provided for ventilation. To ensure reliable
operation of the product and to protect it from overheating, these slots and openings
must not be blocked or covered.
9. DO NOT allow anything to rest on the power cord and do not locate the product where
persons could step on or walk on the power cord.
10. DO NOT attempt to service this product yourself. Refer all servicing to qualified
service personnel.
11. Special cables, which may be required by the regulatory inspection authority for the
installation site, are the responsibility of the customer.
12. When installed in the final configuration, the product must comply with the applicable
Safety Standards and regulatory requirements of the country in which it is installed.
If necessary, consult with the appropriate regulatory agencies and inspection
authorities to ensure compliance.
13. A rare phenomenon can create a voltage potential between the earth grounds of two
or more buildings. If products installed in separate buildings are interconnected, the
voltage potential may cause a hazardous condition. Consult a qualified electrical
consultant to determine whether or not this phenomenon exists and, if necessary,
implement corrective action prior to interconnecting the products.

Product Description

Disclaimer for Shielded Cables
Running Head

Model No.

WARNING!
This equipment has been tested and found to comply with the limits for a Class
"A" Digital Device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy, and, if not installed
and used in accordance with this Reference Guide, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user
will be required to correct the interference at their own expense.
The authority to operate this equipment is conditioned by the requirement
that no modifications will be made to the equipment unless the changes or
modifications are expressly approved by the manufacturer.

Disclaimer for Shielded Cables
This equipment was tested with shielded input/output and interface cables. It is recommended
that shielded cables be used to reduce interference whenever interference is suspected.

Panel and Cover Removal
Only qualified Zhone service technicians should attempt the removal of the cover.

Power Source
Please refer to Appendix A, System Specifications in the later in this guide regarding System
Requirements.

Ordering Guide
Model Number

Description

IMACS-200-48VDC

IMACS 200 System with single -48 VDC Power Supply

IMACS-200-RDNT-48VDC

IMACS 200 System with two -48 VDC Power Supplies

IMACS-200-48VDC-OHSU

IMACS 200 System with single -48 VDC Power Supply and a 2-port
OHSU daughter card.

Product Description

Ordering Guide

Model Number

Description

IMACS-200-RDNT-48VDC-OHSU

IMACS 200 System with two -48 VDC Power Supplies and a 2-port
OHSU daughter card

IMACS-200-48VDC-OW

IMACS 200 System with single -48 VDC Power Supply and an Optical
WAN daughter board.

IMACS-200-RDNT-48VDC-OW

IMACS 200 System with two -48 VDC Power Supplies and an Optical
WAN daughter board.

IMACS-200-48VDC-OHSU-OW

IMACS 200 System with single -48 VDC Power Supply, a 2-port OHSU
daughter card and an Optical WAN daughter board.

IMACS-200-RDNT-48VDC-OHSU-OW

IMACS 200 System with two -48 VDC Power Supplies, a 2-port OHSU
daughter card and an Optical WAN daughter board.

IMACS-200-AC

IMACS 200 System with single 120/220 VAC Power Supply

IMACS-200-RDNT-AC

IMACS 200 System with two 120/220 VAC Power Supplies

IMACS-200-AC-OHSU

IMACS 200 System with single 120/220 VAC Power Supply and a 2-port
OHSU daughter card

IMACS-200-RDNT-AC-OHSU

IMACS 200 System with two 120/220 VAC Power Supplies and a 2-port
OHSU daughter card

IMACS-200-AC-OW

IMACS 200 System with single 120/220 VAC Power Supply

IMACS-200-RDNT-AC-OW

IMACS 200 System with two 120/220 VAC Power Supplies and an
Optical WAN daughter board.

IMACS-200-AC-OHSU-OW

IMACS 200 System with single 120/220 VAC Power Supply, a 2-port
OHSU daughter card and an Optical WAN daughter board.

IMACS-200-RDNT-AC-OHSU-OW

IMACS 200 System with two 120/220 VAC Power Supplies, a 2-port
OHSU daughter card and an Optical WAN daughter board.

IMACS-200-125VDC

IMACS 200 System with single 125 VDC Power Supply

IMACS-200-RDNT-125VDC

IMACS 200 System with two 125 VDC Power Supplies

IMACS-200-125VDC-OHSU

IMACS 200 System with single 125 VDC Power Supply and a 2-port
OHSU daughter card

IMACS-200-RDNT-125VDC-OHSU

IMACS 200 System with two 125 VDC Power Supplies and a 2-port
OHSU daughter card

IMACS-200-125VDC-OW

IMACS 200 System with single 125 VDC Power Supply and an Optical
WAN daughter board.

IMACS-200-RDNT-125VDC-OW

IMACS 200 System with two 125 VDC Power Supplies and an Optical
WAN daughter board.

IMACS-200-125VDC-OHSU-OW

IMACS 200 System with single 125 VDC Power Supply, a 2-port OHSU
daughter card and an Optical WAN daughter board.
IMACS 200 System with two 125 VDC Power Supplies, a 2-port OHSU
daughter card and an Optical WAN daughter board.
Table 1. IMACS-200 Ordering Guide.

IMACS-200-RDNT-125VDC-OHSU-OW

Product Description

vii

Available Cabling
Running Head

Model No.

Available Cabling

Table 2 describes the cables recommended for use with the IMACS-200 unit.

Note: Zhone recommends that shielded cables be used to reduce interference that can be
caused by lightning surge interference.

Table 2. Recommended cables
Cable

Used for

Manufacturer
Part Number

Description

Voice

FXS ports

1210

50-pin Amphenol
(M) to 50 pin
Amphenol (M) (5')

1216F or
1216M

DB25F to RJ48M or
DB25M to RJ48M
(Straight through)
(5')

1261F or 1261M

DB25M to V.35F or

E&M ports
Alarm contacts
Data

Sub Rate Data
Port
RS-530

Data

Async/sync High
Speed Data

DB25M to V.35M

V.35 port

(5’)

Data

Serial (craft) port

1219F

RJ48M to DB9F
(25’)

AC Power

AC Power Input

150-00041-01

AC Power Cable (6')

Ethernet

Ethernet port

Standard

RJ45

viii

Product Description

Table of Contents

Table of Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
14

Chapter 1

System Overview
1.1
1.1.1

Chapter 2

Introduction ....................................................................................................1-1
IMACS-200 Chassis ...................................................................................1-1

System Installation
2.1
2.2
2.2.1
2.2.2
2.2.2.1
2.2.3
2.2.3.1
2.2.3.2
2.2.4
2.3
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8

Table of Contents

Product Description ......................................................................................... I-i
Features Delivered in Previous Releases ........................................................ I-i
Features introduced in this Release (2.0.0) .................................................... I-ii
Notable System Improvements ...................................................................... I-ii
IMACS-200 Initialization and Control .......................................................... I-ii
System Reference Guide ............................................................................... I-iii
Technical support .......................................................................................... I-iv
Service Requirements .................................................................................... I-iv
Safety Information and Precautions .............................................................. I-iv
Disclaimer for Shielded Cables ..................................................................... I-vi
Panel and Cover Removal ............................................................................. I-vi
Power Source ................................................................................................. I-vi
Ordering Guide .............................................................................................. I-vi
Available Cabling ........................................................................................ I-viii

Introduction ....................................................................................................2-1
Chassis Installation .........................................................................................2-1
Unpacking the Chassis ...............................................................................2-1
Pre-Installation Tips ...................................................................................2-2
Installation Checklist..............................................................................2-2
Choosing a Location for Your System .......................................................2-2
Rack Installation Tips.............................................................................2-3
Tabletop Installation Tips.......................................................................2-3
Installing the Chassis ..................................................................................2-3
Connector Types ............................................................................................2-5
Connector Pin-outs .........................................................................................2-7
High Speed Data port connector pinouts....................................................2-7
E&M, FXS and Alarm input connector......................................................2-8
T1 interface RJ45 connector.......................................................................2-9
Ethernet connections ................................................................................2-10
Sub Rate Data Ports..................................................................................2-10
Alarm Output Connector ..........................................................................2-11
Serial port - Craft Interface.......................................................................2-11
Connecting Cables to the ports.................................................................2-12

Model No.

Running
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2.5
Power and Grounding on the IMACS-200 .................................................. 2-13
2.5.1
Power Supply and Ringing Generator ..................................................... 2-13
2.5.1.1
Ringing Generator ............................................................................... 2-13
2.5.2
System Power (Redundancy)................................................................... 2-14
2.5.3
AC Power Supply and DC Power Supply Fuses ..................................... 2-14
2.5.4
System Power and Ground Connections ................................................. 2-14
2.5.5
Grounding requirements .......................................................................... 2-14
2.5.6
Chassis with Power Supplies .................................................................. 2-14
2.5.7
DC power installation .............................................................................. 2-15
2.5.8
AC power installation .............................................................................. 2-16
2.5.9
Powering Up the System.......................................................................... 2-16

Chapter 3

System Configuration and Operation
3.1
3.2
3.3
3.3.1
3.3.2
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.5
3.5.1
3.5.2
3.6
3.7
3.7.1
3.7.2
3.7.3
3.7.4
3.8
3.9
3.9.1
3.9.2
3.9.3
3.9.4
3.9.5
3.9.6
3.9.7
3.9.8
3.10
3.10.1
3.10.2
3.11

Basic Operations ............................................................................................ 3-1
Basic Screen Map and Legend ...................................................................... 3-1
System Power-up ........................................................................................... 3-1
System Boot ............................................................................................... 3-2
Logging Into the System............................................................................ 3-3
System Screens .............................................................................................. 3-6
System Main Screen .................................................................................. 3-6
Voice and Data Port Status ........................................................................ 3-6
Service Type Main Screens ....................................................................... 3-7
Test and Debug Screen ............................................................................ 3-10
Port Configuration ....................................................................................... 3-10
Selecting and Configuring Your ports ..................................................... 3-10
Recording Your Configuration Settings .................................................. 3-11
Reinitializing the System ............................................................................. 3-12
Alarms ......................................................................................................... 3-14
Alarm Screens.......................................................................................... 3-14
Alarm Filter Settings................................................................................ 3-16
Alarm Cutoff (ACO)................................................................................ 3-18
Alarm Handling ....................................................................................... 3-18
Cross-Connecting (XCON) ......................................................................... 3-19
System Level Maintenance .......................................................................... 3-19
Test, Debug, Backup & Restore .............................................................. 3-19
Debugging the System ............................................................................. 3-21
Backing up the System Configuration Data ............................................ 3-21
Pre-TFTP Backup and Restore Preparation............................................. 3-21
TFTP Backup for 1.x.x ............................................................................ 3-22
TFTP Restore for 1.x.x ............................................................................ 3-23
XMODEM Backup .................................................................................. 3-24
XMODEM Restore .................................................................................. 3-25
Time Slot Assignment ................................................................................. 3-25
Modes of Operation ................................................................................. 3-26
XCON Mode (XCON)............................................................................. 3-26
Assigning Time Slots ................................................................................... 3-26

Table of Contents

3.11.1
3.11.2
3.12
3.12.1
3.12.2
3.13
3.14
3.15
3.16

Chapter 4

IMACS-200 General Features
4.1
4.2
4.3
4.3.1
4.3.2
4.3.2.1
4.3.3
4.4
4.4.1
4.4.2
4.5
4.6
4.7
4.7.1
4.7.2
4.7.2.1
4.7.2.2
4.7.2.3
4.7.2.4
4.7.2.5
4.7.2.6
4.7.2.7
4.8
4.8.1
4.8.2
4.8.2.1
4.8.3
4.9
4.9.1
4.9.2
4.9.3
4.10
4.11

Table of Contents

Assigning a Time Slot to a User port Port................................................3-27
Cross-Connect Model ...............................................................................3-28
Circuit Names ...............................................................................................3-28
Display and Change Circuit Names .........................................................3-28
Backup and Restore Circuit Name Table .................................................3-30
Cross-Connecting WAN Time Slots ............................................................3-32
Cross-Connect Actions .................................................................................3-39
Recording the Time Slot Configuration .......................................................3-41
Power Supply Redundancy ..........................................................................3-41

Introduction ....................................................................................................4-1
CPU Descriptions ...........................................................................................4-1
CPU User Screens and Settings .....................................................................4-2
CPU Main Screen ......................................................................................4-2
User Names, Passwords and Groups ..........................................................4-3
User Groups............................................................................................4-4
Access Level Permissions ..........................................................................4-9
Other CPU Settings ......................................................................................4-10
System Clock Source................................................................................4-14
Setting the System Time...........................................................................4-15
SNMP Network Management ......................................................................4-16
TCP/IP Network Management .....................................................................4-18
Remote Administration ................................................................................4-21
Setting Up Remote Connectivity..............................................................4-21
Network Statistics Screens .......................................................................4-24
IP Parameters........................................................................................4-26
TCP State Parameters...........................................................................4-28
UDP Parameters ...................................................................................4-31
TELNET Parameters ............................................................................4-32
SNMP Parameters ................................................................................4-33
SCC Parameters....................................................................................4-34
SA4 Parameters ....................................................................................4-36
Host Software Upgrade Procedure ...............................................................4-37
Equipment Requirements .........................................................................4-37
Laptop Setup.............................................................................................4-38
Log Upgrade Activity...........................................................................4-38
Upgrade Preparation .................................................................................4-39
Software Download Procedures ...................................................................4-39
XMODEM Protocol Binary Download....................................................4-39
Pre-TFTP Binary Upload/Download Preparation ....................................4-40
Loading the Software Image Using the Ethernet Port..............................4-40
CPU Error Messages ....................................................................................4-45
CPU Troubleshooting ...................................................................................4-45

Model No.

Running
Head
Table
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Chapter 5

WAN ports
5.1
5.2
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.4
5.5

Chapter 6

FXS Ports
6.1
6.2
6.2.1
6.3
6.3.1
6.3.2
6.4
6.5

Chapter 7

Introduction ................................................................................................... 8-1
SRU port User Screens and Settings ............................................................. 8-1
Test Screen .................................................................................................... 8-8
SRU port Error Messages ............................................................................ 8-12
SRU port Troubleshooting ........................................................................... 8-12

HSU Ports
9.1

Introduction ................................................................................................... 7-1
E&M Description .......................................................................................... 7-1
IMACS-200 E&M Description ................................................................. 7-1
E&M port User Screens and Settings ............................................................ 7-6
E&M port Main Screen.............................................................................. 7-6
Test Screen............................................................................................... 7-11
E&M port Error Messages ........................................................................... 7-15
E&M port Troubleshooting ..................................................................... 7-15

SRU Ports
8.1
8.2
8.3
8.4
8.5

Chapter 9

Introduction ................................................................................................... 6-1
FXS Descriptions ........................................................................................... 6-1
IMACS-200-FXS Description ................................................................... 6-1
FXS User Screens and Settings ..................................................................... 6-1
FXS Main Screen....................................................................................... 6-1
Test Screen................................................................................................. 6-7
FXS Error Messages .................................................................................... 6-11
FXS port Troubleshooting ........................................................................... 6-11

E&M Ports
7.1
7.2
7.2.1
7.3
7.3.1
7.3.2
7.4
7.4.1

Chapter 8

Introduction ................................................................................................... 5-1
WAN port Descriptions ................................................................................. 5-1
WAN port User Screens and Settings ............................................................ 5-2
WAN Settings for T1 and E1..................................................................... 5-2
Cross-Connect (XCON)............................................................................. 5-7
Performance Data ...................................................................................... 5-9
Far-End Performance Data ...................................................................... 5-12
Test Screen............................................................................................... 5-14
WAN port Error Messages .......................................................................... 5-17
WAN port Troubleshooting ......................................................................... 5-17

Introduction ................................................................................................... 9-1

Table of Contents

9.2
9.2.1
9.3
9.3.1
9.3.2
9.4
9.5

Chapter 10

HSU Ports .......................................................................................................9-1
HSU Port Cables.........................................................................................9-2
HSU Card User Screens and Settings ............................................................9-2
HSU Card Main Screen ..............................................................................9-2
HSU Card Test Screen..............................................................................9-10
HSU Error Messages ....................................................................................9-13
HSU Port Troubleshooting ...........................................................................9-13

OHSU ports
10.1 Introduction ..................................................................................................10-1
10.2 OHSU port ....................................................................................................10-1
10.2.1
Two-Port OHSU port Description............................................................10-1
10.2.2
OHSU port Cables....................................................................................10-2
10.3 OHSU port User Screens and Settings .........................................................10-2
10.3.1
OHSU port Main Screen ..........................................................................10-2

Chapter 11

Alarm ports
11.1
11.2
11.2.1
11.2.2
11.3
11.4

Chapter 12

Introduction ..................................................................................................11-1
Alarm port User Screens and Settings ..........................................................11-2
Alarm Filter Screen Sensor Setting ..........................................................11-2
Alarm Ports Main Screen .........................................................................11-2
Alarm port Error Messages ..........................................................................11-5
Alarm port Troubleshooting .........................................................................11-5

IP Routing
12.1 Introduction ..................................................................................................12-1
12.2 IPR Description ............................................................................................12-1
12.2.1
IMACS 200 IPR .......................................................................................12-1
12.3 Frame Relay Network ..................................................................................12-2
12.3.1
IPR Connecting IP LANs .........................................................................12-2
12.3.1.1
IPR to the Internet ................................................................................12-3
12.3.1.2
IPR........................................................................................................12-4
12.4 IPR Configuration Screens and Settings ......................................................12-5
12.4.1
IPR Main Screen.......................................................................................12-5
12.4.2
Frame Relay Ports Configuration Screen .................................................12-7
12.4.3
Frame Relay PVC Configuration Screen ...............................................12-10
12.4.4
Frame Relay Port LMI Screen................................................................12-12
12.4.5
IP Routing Table Screen.........................................................................12-13
12.4.6
Static Routes Configuration Screen........................................................12-14

Chapter 13

OWAN Port
13.1

Table of Contents

Introduction ..................................................................................................13-1

Model No.

Running
Head
Table
of Contents

13.2
13.2.1
13.2.2
13.2.3
13.2.4
13.3
13.3.1
13.3.2
13.4
13.4.1
13.5
13.5.1
13.5.2

Chapter 14

OWAN Port ................................................................................................. 13-1
OWAN Port Description.......................................................................... 13-1
OWAN Alarms ........................................................................................ 13-2
OWAN LED Indications ......................................................................... 13-3
OWAN port Cables.................................................................................. 13-3
OWAN port User Screens and Settings ....................................................... 13-3
OWAN Functional Notes......................................................................... 13-4
OWAN Optical Port Main Screen ........................................................... 13-4
OWAN Port Main Screen Actions .............................................................. 13-5
Port Settings for OWAN.......................................................................... 13-6
OPTIC WAN Port Screen Actions .............................................................. 13-9
Cross-Connect (XCON) Screen............................................................. 13-10
Test Screen............................................................................................. 13-11

System Testing and Diagnostics
14.1
14.2
14.3
14.3.1
14.3.2
14.4
14.4.1
14.5

Introduction ................................................................................................. 14-1
Integral Test Capabilities ............................................................................. 14-1
User port Diagnostics .................................................................................. 14-2
WAN Diagnostics .................................................................................... 14-2
Voice Diagnostics .................................................................................... 14-3
.System with Cross-Connect Option ........................................................... 14-4
Circuit Diagnostics .................................................................................. 14-4
Benefits of Built-In Diagnostics .................................................................. 14-5

Appendix A System Standards and Specifications
A.1
Introduction ...................................................................................................A-1
A.2
Standards Compatibility ................................................................................A-1
A.3
Chassis Standards ..........................................................................................A-2
A.3.1
Dimensions ................................................................................................A-2
A.3.2
Chassis Power ............................................................................................A-2
A.3.3
Environment...............................................................................................A-2
A.3.3.1
Ambient Temperature and Humidity.....................................................A-2
A.3.3.2
Airflow...................................................................................................A-2
A.3.4
Equipment Handling ..................................................................................A-3
A.3.4.1
Packaged Equipment Shock Criteria .....................................................A-3
A.3.4.2
Unpackaged Equipment Shock Criteria ................................................A-3
A.3.5
Office Vibration and Transportation Vibration .........................................A-3
A.3.5.1
Office Vibration.....................................................................................A-3
A.3.5.2
Transportation Vibration .......................................................................A-3
A.3.6
Mounting....................................................................................................A-3
A.3.6.1
Types .....................................................................................................A-3
A.4
Port Specifications .........................................................................................A-4
A.4.1
WAN port Specifications...........................................................................A-4
A.4.2
FXS port Specifications .............................................................................A-5
A.4.3
E&M port Specifications ...........................................................................A-6

Table of Contents

A.4.4
A.4.5
A.4.6
1.5

SRU port Specifications ............................................................................ A-8
HSU Port Specifications............................................................................ A-9
OHSU port Specifications ....................................................................... A-10
IPR Server Specifications ............................................................................ A-11

Appendix B Error Messages
B.1

Introduction ................................................................................................... B-1

Appendix C Glossary

Table of Contents

Running
Head
Table
of Contents

Model No.

Table of Contents

List of Figures

List of Figures
1-1
1-2
2-1
2-2
2-3
2-4
2-5
2-6
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
3-15
3-16
3-17
3-18
3-19
3-20
3-21
3-22
3-23
3-24
3-25
3-26
3-27
3-28
3-29
3-30
3-31
4-1
4-2
4-3

IMACS-200 Front Panel.......................................................................................................1-1
IMACS-200 Rear Panel ........................................................................................................1-2
IMACS-200 Front Panel.......................................................................................................2-4
Mounting Bracket Holes .......................................................................................................2-4
Chassis Mounting Holes .......................................................................................................2-5
IMACS-200 Rear Panel ........................................................................................................2-5
DC Power plug....................................................................................................................2-15
IMACS-200 Initial Login Screen ......................................................................................2-16
Testing and Initialization Screen ..........................................................................................3-2
Typical Login Screen............................................................................................................3-3
WAN and OWAN Interface Un-provisioned Setting ...........................................................3-4
Typical System Main Screen ................................................................................................3-5
Typical port Status Display...................................................................................................3-7
Typical port Main Screen .....................................................................................................3-9
Rebooting the IMACS-200 .................................................................................................3-12
System Screen - Test and Debug. .......................................................................................3-13
Cold-Start NVRAM “Zip”Test and Debug Screen.............................................................3-13
Typical Alarm Screen .........................................................................................................3-14
Alarm Filters Screen ...........................................................................................................3-16
Typical Alarm History Screen ............................................................................................3-19
System Test and Debug Screen ..........................................................................................3-20
Backup (and restore) File Transfer Protocols .....................................................................3-21
Setting the Host IP address .................................................................................................3-22
Typical E&M port Time Slot Assignments ........................................................................3-27
Cross Connect Screen .........................................................................................................3-29
Cross Connect Screen -View All ........................................................................................3-29
Cross Connect Circuit (Rename) ........................................................................................3-30
Cross Connect Rename Circuit (Saving) ............................................................................3-30
NVRAM Backup Screen ....................................................................................................3-31
NVRAM Restore Screen ....................................................................................................3-31
Cross-Connect Screen.........................................................................................................3-32
Add a Cross-Connect Circuit Screen ..................................................................................3-32
New Circuit Selection and ID Assignment.........................................................................3-34
WAN Unit Options .............................................................................................................3-35
Time Slot and Bandwidth Options......................................................................................3-36
Supported Signaling Trunk Conditioning Types ................................................................3-37
Options with choosing User Trunk Conditioning...............................................................3-38
Pattern to be sent on WAN failure......................................................................................3-38
Delete Cross-Connection Screen ........................................................................................3-40
Main CPU level upon login ..................................................................................................4-1
CPU Main Screen .................................................................................................................4-2
User Name Screen ................................................................................................................4-6

List of Figures

Running
Head
List
of Figures

4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
4-19
4-20
4-21
4-22
4-23
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
6-1
6-2
6-3
6-4
7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
8-1
8-2
8-3
8-4
9-1
9-2

Model No.

Adding a User ...................................................................................................................... 4-7
Login Log Sample Display .................................................................................................. 4-8
Group Permissions Settings ................................................................................................. 4-9
Other CPU Fields and Settings .......................................................................................... 4-11
Setting the System Clock Source ....................................................................................... 4-14
Setting the System Time .................................................................................................... 4-15
Typical TCP/IP Screen....................................................................................................... 4-18
Setting up Remote Connectivity ........................................................................................ 4-21
IP Daisy-chaining on the IMACS-200 ............................................................................... 4-22
Displaying the SCC ports................................................................................................... 4-22
Setting up a Static IP Route on the IMACS-200................................................................ 4-23
Typical Network Statistics Screen, Page 1 ........................................................................ 4-24
Typical Network Statistics Screen, Page 2 ........................................................................ 4-28
Typical Network Statistics Screen, Page 3 ........................................................................ 4-31
SCC Port Parameters.......................................................................................................... 4-34
SA4 Bit Parameters ............................................................................................................ 4-36
Flash Screen ....................................................................................................................... 4-41
Flash Screen with Commands ............................................................................................ 4-42
Flash Screen with Software Removed ............................................................................... 4-43
Flash Screen with Downloaded Software .......................................................................... 4-43
WAN T1 Port Main Screen.................................................................................................. 5-2
WAN E1 Port Main Screen.................................................................................................. 5-2
Line Loopback ..................................................................................................................... 5-5
Local Loopback.................................................................................................................... 5-5
WAN Cross-Connect Per Port ............................................................................................. 5-7
Adding a WAN to WAN Cross-connect .............................................................................. 5-8
T1 Cross-Connect Screen (display only) ............................................................................. 5-8
Typical Performance Data Screen........................................................................................ 5-9
Far-End Performance Data Screen..................................................................................... 5-12
Typical WAN port Test Screen.......................................................................................... 5-14
Typical FXS port Main Screen ........................................................................................... 6-2
FXS port Loopbacks ........................................................................................................... 6-5
TABs Signal Conversion...................................................................................................... 6-6
Typical FXS port Test Screen ............................................................................................. 6-7
Type I E&M Signaling......................................................................................................... 7-2
Type II E&M Signaling ....................................................................................................... 7-3
Type IV E&M Signaling ...................................................................................................... 7-4
Type V E&M Signaling ....................................................................................................... 7-5
Typical E&M port Main Screen........................................................................................... 7-6
E&M port Loopbacks.......................................................................................................... 7-9
Tabs Signal Conversion - Change Mode ........................................................................... 7-10
Typical E&M port Test Screen ......................................................................................... 7-11
Typical SRU port Main Screen ............................................................................................ 8-2
SRU Time Slot Integration................................................................................................... 8-5
Local Loopbacks .................................................................................................................. 8-7
Typical SRU port Test Screen.............................................................................................. 8-8
HSU Main Screen ................................................................................................................ 9-2
HSU Port Time Slot Assignment Screen ............................................................................. 9-5

List of Figures

9-3
9-4
9-5
10-1
10-2
10-3
10-4
10-5
11-1
11-2
11-3
12-1
12-2
12-3
12-4
12-5
12-6
12-7
12-8
12-9
13-1
13-2
13-3
13-4
13-5
13-6
13-7
13-8
14-1
14-2

Local DTE Loopback............................................................................................................9-7
Local Network Loopback .....................................................................................................9-8
HSU Port Test Screen .........................................................................................................9-10
Optional two-Port OHSU port ............................................................................................10-1
Typical OHSU port Main Screen........................................................................................10-2
Typical OHSU Port Time Slot Assignment Screen............................................................10-4
Local User Loopback..........................................................................................................10-5
Local Network Loopback ...................................................................................................10-5
Alarm Filter Screen.............................................................................................................11-2
Alarm Level from the Main Screen ...................................................................................11-3
Alarm Contact Settings.......................................................................................................11-3
IPR Card Connected to IP LANs through Frame Relay Network ......................................12-2
IPR Card Routed to the Internet through Frame Relay Network .......................................12-3
IPR Card Connected to IP Nodes on Ethernet to Frame Relay Network ...........................12-4
IPR Ethernet and Default IP Screen ...................................................................................12-5
IPR Frame Relay Menu ......................................................................................................12-7
IPR Frame Relay PVC Configuration Screen...................................................................12-10
IPR Frame Relay Port LMI Screen...................................................................................12-12
IPR IP Routing Table Screen............................................................................................12-13
IPR IP Static Routes Configuration Menu Screen............................................................12-14
Optional Redundant OWAN Port .......................................................................................13-2
IMACS-200 Main screen....................................................................................................13-4
Typical OWAN port Main Screen ......................................................................................13-5
Typical Settings for the T1 OWAN Ports...........................................................................13-6
Typical Settings for the E1 OWAN Ports...........................................................................13-8
XCON Screen for E1 ........................................................................................................13-10
XCON Screen for T1 ........................................................................................................13-11
OWAN Port Test Screen...................................................................................................13-12
Built-In Diagnostics Example (Diagnostics 1 - 4)..............................................................14-6
Built-In Diagnostics Example (Diagnostics 5- 9)...............................................................14-7

List of Figures

Running
Head
List
of Figures

Model No.

List of Figures

List of Tables

List of Tables
1
2
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
3-1
3-2
3-3
3-4
3-5
3-6
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
5-1
5-2
5-3
5-4
5-5
5-6
6-1
6-2
6-3
6-4
6-5
7-1
7-2

IMACS-200 Ordering Guide. ........................................................................................... I-vii
Recommended cables ...................................................................................................... I-viii
Minimum Chassis Clearances ............................................................................................2-5
Front panel connectors........................................................................................................2-6
Back panel connectors ........................................................................................................2-6
V.35 DB25 female connector .............................................................................................2-7
25-pair female amphenol connector ...................................................................................2-8
T1 connector pinouts ........................................................................................................2-10
Ethernet connector pinouts ...............................................................................................2-10
Sub Rate Data (SRU) ports connector pinouts .................................................................2-10
Alarm Output Connector pinouts .....................................................................................2-11
Serial port interface connector pinouts .............................................................................2-11
Ringing Generator Load Versus REN ..............................................................................2-13
System Main Screen Actions..............................................................................................3-6
Alarm Filters.....................................................................................................................3-17
Circuit Names ...................................................................................................................3-28
Time Slot Cross-Connection Options and Defaults .........................................................3-33
Cross-Connect Screen Actions .........................................................................................3-39
Time Slot Recording Form for T1 Operation ...................................................................3-41
CPU Main Screen Actions..................................................................................................4-3
User Access Table ..............................................................................................................4-3
Default User Table..............................................................................................................4-4
User Accesses by Group.....................................................................................................4-4
Default Group Permissions.................................................................................................4-5
usrName Screen Actions ....................................................................................................4-7
SNMP Users and Default Passwords................................................................................4-16
TCP/IP Screen Actions .....................................................................................................4-19
TCP/IP Screen Options and Defaults ...............................................................................4-19
Network Statistics Screen Actions ...................................................................................4-26
WAN Screen Actions .........................................................................................................5-3
WAN Screen Option Settings and Defaults .......................................................................5-3
Performance Data Screen Actions ......................................................................................5-9
Far-End Performance Data Screen Actions......................................................................5-12
Test Screen Actions ..........................................................................................................5-14
WAN port Test Screen Options........................................................................................5-14
Main Screen Option Settings and Defaults.........................................................................6-2
Main Screen Option Settings and Defaults.........................................................................6-3
Test Screen Actions ...........................................................................................................6-7
Test Screen Option Settings and Defaults ..........................................................................6-7
Status Information Field Settings ......................................................................................6-9
Main Screen Actions ..........................................................................................................7-7
Main Screen Option Settings and Defaults........................................................................7-7

List of Tables

Running
Head
List
of Tables

7-3
7-4
7-5
8-1
8-2
8-3
8-4
8-5
9-1
9-2
9-3
9-4
9-5
10-1
10-2
10-3
11-1
11-2
12-1
12-2
12-3
12-4
12-5
12-6
12-7
12-8
13-1
13-2
13-3
13-4
13-5
13-6
13-7

Model No.

Test Screen Actions ........................................................................................................ 7-11
Test Screen Option Settings and Defaults........................................................................ 7-11
Status Information Field Settings.................................................................................... 7-14
Main Screen Actions.......................................................................................................... 8-3
Main Screen Option Settings and Defaults ........................................................................ 8-3
SRU port State Status......................................................................................................... 8-4
Test Screen Actions ........................................................................................................... 8-9
Test Screen Option Settings and Defaults.......................................................................... 8-9
HSU Card Main Screen Actions ........................................................................................ 9-2
HSU Setting Options and Defaults .................................................................................... 9-3
HSU State Status................................................................................................................ 9-4
Test Screen Actions ......................................................................................................... 9-10
Test Screen Option Settings and Defaults........................................................................ 9-11
OHSU port Main Screen Actions..................................................................................... 10-3
OHSU port Setting Options and Defaults ........................................................................ 10-3
Alarm Field ...................................................................................................................... 10-5
Alarm Contacts Main Screen Actions.............................................................................. 11-4
Alarm Contacts Settings and Defaults ............................................................................. 11-4
IPR 1Ethernet and Default IP Screen Actions ................................................................. 12-5
IPR 10B2 and 10BT Ethernet and Default IP Option Settings and Defaults................... 12-6
IPR Frame Relay Menu Screen Actions .......................................................................... 12-7
IPR Frame Relay Menu Option Settings and Defaults .................................................... 12-8
IPR Frame Relay PVC Configuration Screen Actions .................................................. 12-10
IPR FR PVC Configuration Option Settings and Defaults ............................................ 12-11
IPR IP Static Routes Configuration Table Screen Actions............................................ 12-14
IPR IP Static Routes Configuration Option Settings and Defaults................................ 12-15
LED Status Indicators ...................................................................................................... 13-3
OWAN Port Main Screen Actions................................................................................... 13-5
OWAN Port Setting Options and Defaults for T1 ........................................................... 13-6
OWAN Port Setting Options and Defaults for E1 ........................................................... 13-8
OPTIC WAN Port Screen Actions................................................................................... 13-9
Test Screen Actions ....................................................................................................... 13-12
OWAN Port Test Screen Options .................................................................................. 13-12

List of Tables

System Overview

Introduction

Chapter 1
System Overview
1.1

Introduction
This chapter describes chassis used by the IMACS-200.
The IMACS-200 is available with redundant power supplies which operate in a load-sharing
mode.
The IMACS-200 chassis is manufactured to be RoHS-compliant.
The IMACS-200 comes “Industrial hardened” to operate under more extreme temperature
ranges of -40 degrees Celsius to +70 degrees Celsius (-104 degrees Fahrenheit to +158 degrees
Fahrenheit).

1.1.1

IMACS-200 Chassis
This chassis is designed for table top, wall or rack mounting. All voice and data port access is
from the rear of the chassis. The craft interface and alarm indication LEDs are located on the
front of the IMACS-200 unit, as seen in Figure 1-1. The IMACS-200 features an on-board
ringing generator.

Figure 1-1.IMACS-200 Front Panel

The power supply offering with the IMACS-200 comes with either one or two power supplies.
One power supply is capable of handling all the power needs for the unit. When ordering a
unit with a redundant power supply, the IMACS-200 operates in a load sharing mode. Should
one of the two units fail, the other unit will immediately take over powering of the
IMACS-200.

System Overview

1-1

Model No.
System Overview

Running Head
Introduction

The IMACS-200 offers a range of power input options, which are selected to be the most
commonly used input voltages in use by our various customers. They are: -48VDC, 125VDC,
120VAC and 220VAC. The power supply modules are factory installed, and will come with
the proper connectors configured for the IMACS-200 powering options you have selected.
The power inputs are to the right and left rear of the IMACS-200, and labeled accordingly. In
Figure 1-2, the supply inputs are seen on the sides of the rear panel.

Figure 1-2.IMACS-200 Rear Panel

Notes:
1. The two -48VDC and 125VDC feeds are located in the lower-left and lower-right hand
corners of the IMACS-200 rear panel. Based on ordering options, these ports will arrive
at the customer site with screw-down terminals contained in an accessory bag in the
IMACS-200 packaging. For customers who order the single-supply option, the right-hand
connector above (nearest the T1/E1 and ground screw) should be used. These three-pin
terminals (if so equipped) are labelled left-to-right as NC (No Connection), -48 or 125 as
the case may be, and RTN (return).
2. The two 120VAC and 220VAC feeds are located in the upper-left and upper-right hand
corners of the IMACS-200 rear panel. Based on ordering options, these ports will arrive
at the customer site with AC jacks installed. Simply place a North-American AC power
supply cord into the supplied jacks.
3. The IMACS-200 comes with two fan units installed in the unit. These fans will turn on
and off automatically as the temperature fluctuates inside the enclosure. These fans are not
field serviceable, and will alarm should one of them fail or become obstructed.
A more detailed description of this chassis and its power capabilities is given in chapter 3.

1-2

System Overview

System Installation

Introduction

Chapter 2
System Installation
2.1

Introduction
This chapter provides instructions for unpacking and installing the IMACS-200 chassis at the
user site. It also includes other information you will need to properly install the system and
refers you to other chapters for additional port-level information.
The system can operate on either AC or DC power when equipped with the proper power
supply. Refer to the system specifications section in this manual regarding electrical and
environmental requirements.

2.2

Chassis Installation

2.2.1

Unpacking the Chassis
When you receive your system, unpack the box and check the contents for damage. Inside the
box you should have the following three items:
1. The IMACS-200 system
2. A CD ROM with the documentation for the latest or ordered release.
3. A poly bag including the mounting hardware and power cord(s) and or connector(s).
If any of the items above are missing, please contact your sales representative. If anything is
damaged, contact the shipping carrier to file a claim. The carrier representative will also tell
you how to submit a claim, where to send the unit, and give you any special instructions you
may need.
Pack the damaged item in its original packing materials and send it by prepaid freight to the
address you received. If the original packing materials are unavailable, pack the unit in a
sturdy box and surround it with shock-absorbing material.

System Installation

2-1

RunningInstallation
Head
Chassis

2.2.2

Pre-Installation Tips

2.2.2.1

Installation Checklist

Model No.
System Installation

Install your IMACS-200 in the following sequence:
1. Choose a suitable location for the system, as described in this chapter.
2. Unpack and inspect the equipment for damage.
3. Mount the chassis on the desired surface (rack, tabletop, or wall).
4. Install the chassis ground connections.
5. Verify the voltage ratings of all power supplies in the chassis.
6. Verify the fuse ratings of the source power supply.
7. Apply power to the system and verify the power LED states.
After successfully installing the system, configure the system for operation as follows:
1. Connect a VT100-compatible terminal to the Interface port.
2. Log into the system.
3. Set the Alarm Filters.
4. Configure the CPU interface along with the ethernet port if desired.
5. Configure the Voice ports.
6. Configure the Data ports.
7. Configure the WAN ports.
8. Configure all other ports.

2.2.3

Choosing a Location for Your System
The IMACS-200 requires a reasonably dust-free, static-free operating environment. Adequate
ventilation is also required at the site. Do not install the chassis in direct sunlight, which may
increase the system’s operating temperature and affect its operation.
Most of the system plug-in ports have highly sensitive components that could be damaged by
static electricity. Whenever you handle any system ports, be sure to observe local electrostatic
discharge (ESD) precautions.
The system chassis can be installed on an 19-inch or 23-inch equipment rack, or placed on a
tabletop or other level surface. First though, make sure the desired surface can support the
weight of a chassis.

2-2

System Installation

Chassis Installation

Be sure to locate the system near all external equipment to which you will connect it. Cable
lengths and physical/electrical characteristics are critical to system operation, especially for
data signal interfaces. Generally, higher data rates require shorter cables than lower data rates.
Also, you must use T1-grade cables for all system connections to those networks. For best
results, use the cables supplied by your supplier when connecting your system to the
associated external facilities. For more information on system cabling, call your supplier.

2.2.3.1

Rack Installation Tips
When installing the chassis in a rack, allow at least 2 inches (5.1 cm) of space between the
chassis and the equipment in front and behind it for proper ventilation. Use the mounting
brackets and attachment hardware furnished with the chassis for this purpose, as outlined in
this chapter. If you use other mounting hardware, you may damage the chassis or circuit
boards installed in it.
Also route all cables to their destinations through conduits to enhance electromagnetic
compatibility (EMC) performance and facilitate future system troubleshooting. When routing
cables, be sure not to obstruct any chassis vents.

2.2.3.2

Tabletop Installation Tips
The chassis can be placed on a flat, smooth surface (e.g., a table) that is free of contaminants.
This surface should be capable of supporting the chassis.
If you are placing the chassis on a tabletop or other flat surface, be sure to leave enough
clearance for air circulation through the system. Make sure the chassis is accessible from both
the front and rear.

2.2.4

Installing the Chassis
Figure 2-1 shows the front panel of the IMACS-200 chassis. To mount the chassis in a rack,
first attach the brackets to the sides of the chassis, using the four associated 10-32 x 1/4”
screws. The brackets are reversible for mounting in 19-inch or 23-inch racks (48.2 or 58.4
cm). For a 19-inch rack, attach the long sides of the brackets to the chassis (Figure 2-2 shows
the mounting brackets and holes). For a 23-inch rack, attach the short sides of the brackets to
the chassis. You can attach the brackets to either position on the side of the chassis. See Figure
2-3 on page 2-5 for a view of the side panel of the IMACS-200.Then, use the four 12-24 x 1/4”
screws to mount the bracketed chassis on the rack.

System Installation

2-3

Model No.
System Installation

RunningInstallation
Head
Chassis

Figure 2-1.IMACS-200 Front Panel

Figure 2-2.Mounting Bracket Holes
The chassis have eleven holes on each side, as shown in Figure 2-3. Eight of these holes
facilitate mounting in a 19- or 23-inch rack (48.2 or 58.4 cm). You can attach the front, or
middle of this chassis to a rack, using the mounting brackets as previously shown.

2-4

System Installation

Connector Types

Figure 2-3.Chassis Mounting Holes
Table 2-1 outlines the minimum clearance that is recommended for the IMACS-200 on all four
sides.

Table 2-1. Minimum Chassis Clearances

2.3

Clearance

Front

Rear

Inches
Centimeters

10
25

Connector Types
The product is equipped with several types of electrical connections to the network and power
sources. Table 2-2 lists the connections on the front panel of the IMACS-200 (Refer to Figure
2-1 on page 2-4 for an illustration of the IMACS-200 front panel). These connections are
available for the crafts person to gain easy access into the unit. Table 2-3 lists the back panel
connectors along with their functionality. (Refer to Figure 2-4 on page 2-5 for an illustration
of the IMACS-200 back panel)

Figure 2-4. IMACS-200 Rear Panel

System Installation

2-5

Model No.
System Installation

Running Head
Connector
Types

Table 2-2. Front panel connectors
Connector Name

Connector Type

Description

Ethernet

RJ45

Ethernet port for remote management over IP.

Serial

RJ45

Asynchronous craft port for local management.

Table 2-3. Back panel connectors
Connector Name

Connector Type

Description

Voice

50 pin amphenol

Four E&M lines, transmit only (to) in the introductory offering of the
IMACS-200. Each line utilizes eight leads from the connector.

Voice

50 pin amphenol

Four FXS Tip-and-Ring pairs. Each line utilizes two leads from the
connector.

Voice

50 pin amphenol

Alarm input contacts are provided in this connector. There are four
available contacts, each utilizing two leads from the connector.

Alarm

RJ45

Alarm outputs to an external alarm system.

High Speed Data

DB25 female

Two V.35 high speed data port connectors.

Sub Rate Data

RJ45

Five subrate data (SRU) ports

OHSU1 and
OHSU2

Two ST optical
connector pairs

The IMACs-200 can be configured with an Optical High Speed Unit
with two pairs of optical connections.

Enet

RJ45

Ethernet port for remote management over IP. This port is disabled for
this initial release of the product.

T1/E1

RJ45

Four transmit and receive pairs for T1 network access. E1 will be
provided in a later release.

48VDC (+-G) 1.5A
Max

3 position

For DC power inputs. IMACS-200 can have two DC inputs.The
cables used to connect the power to the chassis should be 20 to 18
gauge solid wire.

125VDC (label)

(plugs included
with kit of parts)

120/220VAC

AC receptacles

Power input 1.0A 50/60Hz when external AC voltage is used to
power the unit.The IMACS-200 can have two such supplies.

OWAN1 OWAN2

Two ST optical
Connectors

The IMACs-200 can be configured with an Optical WAN Unit with
two optical connections.

Earth Ground

Permanent Earth Ground Connection. Use 14 gauge solid wire for

a single connection to the provided earth ground screw, and
connect to a ground source.

2-6

System Installation

2.4

Connector Pin-outs

Connector Pin-outs
Following is a description of the various connectors and their respective pin-outs.

2.4.1

High Speed Data port connector pinouts

Table 2-4 describes the signals and pins for the V.35 data ports. The pin assignments are associated with
the use of Zhone cable part number 1216M (F).

Table 2-4. V.35 DB25 female connector
Pin

Signal

Shield

Transmit Data A

DTE

Receive Data A

DCE

Request to Send

DTE

Clear to Send

DCE

Data Set Ready

DCE

Ground

Receive Line Signal Detector

DCE

Receive Timing A

DCE

External Transmit Clock B

Terminal Timing B

Not Used

Transmit Timing A

DCE

Not Connected

Transmit Data B

DTE

Transmit Timing B

DCE

Receive Data B

DCE

Receive Timing B

DCE

Not Connected

Data Terminal Ready

DTE

Remote Loopback

DTE

Local Loopback

DTE

System Installation

Source

V.35 (with PRM-1261F cable)

2-7

Model No.
System Installation

Running Head
Connector
Pin-outs

Table 2-4. V.35 DB25 female connector
Pin

Signal

Source

V.35 (with PRM-1261F cable)

External Transmit Clock A

Terminal Timing A

Not Used

Test Mode

DCE

Note: For purposes of connection and function, the IMACS-200 should be considered a DCE.

2.4.2

E&M, FXS and Alarm input connector

Table 2-5 lists the connector pinouts for the E&M circuits, FXS circuit and the provided alarm input
points. For E&M, “R”, “T” and “M” are consider input direction, “R1”, “T1” and “E” are considered
output direction, and “SB” and “SG” are considered direction-neutral.

Table 2-5. 25-pair female amphenol connector
Port

Designation

Port

Designation

E&M
Port 1

T-1

E&M
Port 4

T-4

E&M
Port1

R-1

E&M
Port4

R-4

E&M
Port 1

T1-1

E&M
Port 4

T1-4

E&M
Port 1

R1-1

E&M
Port 4

R1-4

E&M
Port 1

E-1

E&M
Port 4

E-4

E&M
Port 1

M-1

E&M
Port 4

M-4

E&M
Port 1

SG-1

E&M
Port 4

SG-4

E&M
Port 1

SB-1

E&M
Port 4

SB-4

E&M
Port 2

T-2

FXS
Port 1

T-1

E&M
Port 2

R-2

FXS
Port 1

R-1

2-8

System Installation

Connector Pin-outs

Table 2-5. 25-pair female amphenol connector
Port

Designation

Port

Designation

E&M
Port 2

T1-2

FXS
Port 2

T-2

E&M
Port 2

R1-2

FXS
Port 2

R-2

E&M
Port 2

E-2

FXS
Port 3

T-3

E&M
Port 2

M-2

FXS
Port 3

R-3

E&M
Port 2

SG-2

FXS
Port 4

T-4

E&M
Port 2

SB-2

FXS
Port 4

R-4

E&M
Port 3

T-3

ALM
1A

Alarm
contact

E&M
Port 3

R-3

ATM
1B

Alarm
contact

E&M
Port 3

T1-3

ALM
2A

Alarm
contact

E&M
Port 3

R1-3

ALM
2B

Alarm
contact

E&M
Port 3

E-3

ALM
3A

Alarm
contact

E&M
Port 3

M-3

ALM
3B

Alarm
contact

E&M
Port 3

SG-3

ALM
4A

Alarm
contact

E&M
Port 3

SB-3

ALM
4B

Alarm
contact

Not Used

2.4.3

T1 interface RJ45 connector

Table 2-6 lists the T1 RJ45 connector pinouts.

System Installation

2-9

Model No.
System Installation

Running Head
Connector
Pin-outs

Table 2-6. T1 connector pinouts
RJ-45(F) Pin

Signal

3, 6, 7, 8

Not assigned

2.4.4

Ethernet connections

Table 2-7 lists the RJ45 connector pinouts for the ethernet ports on the front and rear of the chassis.

Table 2-7. Ethernet connector pinouts
RJ-45(F) Pin

Signal

TXP

TXN

RXP

TXCT

RXCT

RXN

Not used

Ground

2.4.5

Sub Rate Data Ports

Table 2-8 lists the RJ45 connector pinouts for the five sub rate data ports on the rear of the chassis.

Table 2-8. Sub Rate Data (SRU) ports connector pinouts
RJ-45(F) Pin

Signal

Direction

SCT

Output

RLSD

Output

SCR

Output

Ground

RXD

2-10

Output

System Installation

Connector Pin-outs

Table 2-8. Sub Rate Data (SRU) ports connector pinouts
RJ-45(F) Pin

Signal

Direction

TXD

Input

CTS

Output

RTS

Input

2.4.6

Alarm Output Connector

The IMACS-200 is equipped with an RJ45 connection on the rear faceplate labelled ALARM to drive
external alarm responders such as buzzers, bells, and lights. Table 2-9 indicates the pin-outs for this
RJ45 connector.the T1 RJ45 connector pinouts.

Table 2-9. Alarm Output Connector pinouts
RJ-45(F) Pin

Signal

Alarm Output 1C

Alarm Output 1

Alarm Output 2C

Alarm Output 2

Alarm Output 3C

Alarm Output 3

Alarm Output 4C

Alarm Output 4

2.4.7

Serial port - Craft Interface

The IMACS-200 is equipped with an RJ45 connection on the front faceplate labelled SERIAL to allow
crafts person access to the IMACS-200 at all times.

Table 2-10. Serial port interface connector pinouts
RJ-45(F) Pin

Signal

Ground

Receive

Transmit

1,2,3,7,8

Not used

System Installation

2-11

Running Head
Connector
Pin-outs

2.4.8

Model No.
System Installation

Connecting Cables to the ports
Connect system ports to the external equipment, using the proper cables. The ports have
various types of connectors for those connections.
Voice ports have a 50-pin Amphenol-type jack. To connect a cable to this type of jack, first
plug the male connector of the cable into the jack and push it in all the way. Then, tighten the
mounting screws on either end of the cable connector shroud to the IMACS-200 connector.
For modular (RJ-45) jacks, push the cable’s mating plug into the jack until it snaps into place.
However, do not try to force the plug into the jack.
For DB-25 jacks, first plug the cable’s mating connector firmly into the jack. Then, thread the
screws on either side of the cable connector shroud into the standoffs on either side of the port
jacks, and hand-tighten them.
For a list of available cables for the IMACS-200, refer to Table 2 in the Product Description
section in the front of this user guide.

2-12

System Installation

Power and Grounding on the IMACS-200

2.5

Power and Grounding on the IMACS-200

2.5.1

Power Supply and Ringing Generator
The power supply and ringing generator system can consist of up to two power supplies, and
has one on-board ringing generator. The IMACS-200 comes with the proper power supplies
factory-assembled depending on the ordering information provided at the time of purchase.

2.5.1.1

Ringing Generator
The Ringing Generator on the IMACS-200 outputs 86Vrms at 20Hz. That is the output if
ringing into a 1 to 4 REN load. If the load increases, the built-in overload protection will
reduce the output voltage in steps as shown in Table 2-11.

Table 2-11. Ringing Generator Load Versus REN
Output Ringing Amplitude

Load[1REN =
6930Ohms and 8
picoFarads]

86 Vrms

4REN

75 Vrms

5REN

70 Vrms

6REN

60 Vrms

8REN

50 Vrms

10REN

45 Vrms

12REN

Short Circuit Protection Active

>>12REN

This ability inherent in the IMACS-200 provides continuous service up to 12 North American
REN loads without distortion.
Following is more detailed information regarding the power inputs.

System Installation

2-13

Running
Power
andHead
Grounding on the IMACS-200

2.5.2

Model No.
System Installation

System Power (Redundancy)
The IMACS-200 provides power redundancy for any of the powering options. The supplies
are factory-installed, and the external connectors to receive the powering options selected will
be pre-installed on the unit. Figure 2-4 on page 2-5 high-lites the location of the Power Supply
feeds.The 120VAC and 220VAC power inputs are lightly shaded, and the -48VDC and
125VDC options are darkly shaded.

2.5.3

AC Power Supply and DC Power Supply Fuses
The AC power supply and DC Power Supply fuses are already built in to the supplies. These
fuses are not field serviceable. When unpacking the unit, an AC power cord will be in the box
for each of the AC power supplies ordered. The AC inlet connector is located in the rear
corners of the chassis. For a single supplied unit, the rear right-hand connector will be
equipped. Refer to the system specifications section in this manual for input power
requirements.

2.5.4

System Power and Ground Connections
After installing the system, make the power and ground connections to the chassis as
described in this section. A frame ground connection is provided in the right-rear corner of the
IMACS-200 rear panel.

2.5.5

Grounding requirements
Due to the UL regulatory requirements, a mounting stud is required for connection of the AC
input earth ground lead to the product chassis. The ground lead must be connected to the
chassis using a No. 6 screw, which is included. When grounding the system, use 14 gauge
solid wire for a single connection to the provided earth ground screw. The mounting location
is labeled with the IEC 417 No. 5019 symbol to identify this as the AC earth ground
connection point. This mounting stud is located next to the IEC 320 AC input connector.

2.5.6

Chassis with Power Supplies
Figure 2-4 on page 2-5 shows the different power connections on the chassis.
For DC powered systems, the lower right and lower left-hand connections provide for
separate, redundant power feeds to the system's pre-installed DC power supplies if so
equipped. These two sets of leads provide a connection for separate, redundant power feeds
to the system in a load-sharing mode.

2-14

System Installation

Power and Grounding on the IMACS-200

The telecommunications voice signaling ground is a referenced ground connection to the
-48VDC power system. Both feeds are referenced to the same place within the IMACS-200.
This reference ground can occur at the -48VDC power source. If the ground connection is
not maintained, and one side of the connection equipment is not referenced to an earth
ground then a floating ground condition can occur causing the voice circuits and the
voice signaling to react erratically when either end of the connecting equipment tries to
start the circuit.
Sites using only loop start telecommunication circuits (no ground start or E&M signaling) can
operate properly without the Telecom Signaling Ground.
When grounding the system, use 14 gauge solid wire for a single connection to the provided
earth ground screw.
For AC powered systems, the right and left-hand connections provide for separate, redundant
power feeds to the system's pre-installed AC power supplies if so equipped. These two sets of
leads provide a connection for separate, redundant power feeds to the system in a load-sharing
mode.

2.5.7

DC power installation
When wiring to an external power source, such as a battery rack, fuse panel, or circuit breaker,
make sure that the correct rating of wire is used. Figure 2-5 illustrates the DC power plug. It
is recommended that you use 20 to 18 gauge solid wire.

Figure 2-5. DC Power plug
When the IMACS-200 is ordered with a single-power supply unit, the IMACS-200 will come
with the power supply installed on the right-hand rear of the box, closest to the T1/E1 ports
and grounding screw. Insert the power plug illustrated above into this right-hand rear
connector.

System Installation

2-15

Running
Power
andHead
Grounding on the IMACS-200

2.5.8

Model No.
System Installation

AC power installation
If ordered as an AC unit, the IMACS-200 will come pre-assembled with one or two AC
connectors on the rear panel, as illustrated in Figure 2-4 on page 2-5. To apply the AC source
to the unit, simply use the supplied AC cords included in the packaging to connect the
IMACS-200 to the 120VAC or 220VAC source.

2.5.9

Powering Up the System
After connecting the chassis to the external power sources and making the proper ground
connections, apply power to the chassis. Plug the AC power cord into the associated electrical
outlets, or turn on the external DC power supply. Then, observe the following front-panel
LEDs:
1. On start-up, all LEDs on the front and rear of the unit cycle through the following color
sequence:
Orange, Green, Red and blank.
2. The POWER LED then will turn green on the chassis faceplate. The ACTIVE LED will
stay orange until the unit boot cycle is completed, and then turn green.
If no LEDs illuminate, verify that the external power source is providing power to the chassis,
and check the connection between that source and the chassis.
Once power is confirmed, the user interface should appear. If not, simply hit carriage return.
A window like Figure 2-6 should appear. Type in the user name of “admin”, and the password
is “admin”.

Figure 2-6. IMACS-200 Initial Login Screen

2-16

System Installation

System Configuration and Operation

Basic Operations

Chapter 3
System Configuration and Operation
3.1

Basic Operations
This chapter provides instructions for configuring the IMACS-200 for operation after
installing it at the equipment site.
Before performing the procedures in this chapter:
1. Be sure your IMACS-200 is installed and powered up.
2. Determine your system’s specific configuration requirements. These depend on your
network and customer premises equipment (CPE) interfaces. If this configuration
information already exists, obtain it from your system administrator or engineers.
3. Obtain a terminal with VT-100 or VT-102 emulation and an RS-232 to RJ45 serial cable
for these procedures. The terminal will be connected directly to the SERIAL port on the
front faceplate of your system. This will allow you to access the system and then configure
it for operation with your network and CPE.
Refer the Table 2-10 on page 2-11 for pinouts for RS-232 and SERIAL port.

3.2

Basic Screen Map and Legend
To make system access, configuration and testing easy, the system presents you with a series
of user interface screens. Each screen displays various fields of information, and you can
change the data in those fields as required by your system and external interfaces.

3.3

System Power-up
The IMACS-200 system will initialize when it is powered up. The normal sequence for
initialization and login are described on the following pages.

System Operation

3-1

Model No.
System Configuration and Operation

Running
Head
System
Power-up

3.3.1

System Boot
Following the application of power, proceed as follows:
1. Be sure your system and local terminal are both powered up.
2. Connect a VT100-compatible terminal to the SERIAL jack on the faceplate of the
IMACS-200 front panel. Use a cable with an RJ-45 modular plug on one end for this
connection.
3. Configure the terminal to operate at 9.6 kbps, 8 data bits, no parity, and 1 stop bit.
Should your SERIAL cable be connected prior to powering the IMACS-200, or should
power be removed and re-applied to the IMACS-200 during this process, the following
screen will appear:

Figure 3-1.Testing and Initialization Screen
4. Press the RETURN key. The Login Screen appears.
The system will display Figure 3-1 above. When testing and initializing is complete the screen
will go blank. Press the key. The System Login Screen will display, as seen in Figure
3-2

3-2

System Operation

System Configuration and Operation

3.3.2

System Power-up

Logging Into the System
The first step in starting a user session is to log into the system. You must enter a password
that allows you to perform the required tasks on the system. For access levels and user
permissions, refer to the section detailing user access in Section 4.3.2 on page 3 of Chapter 4
IMACS-200 General Features.
To log into the system from a local terminal, proceed as follows. To log in from a remote PC
refer to details later in this reference manual.
1. Press . The Login Screen depicted in Figure 3-2 should appear. If not, press
again until it does.
2. If the Login Screen does not appear after you press several times, check your
terminal settings (they should be 9.6 kbps, eight data bits, no parity, and one stop bit).

Figure 3-2.Typical Login Screen
3. Contact your system administrator for your Username and Password. Enter your
Username, and press either the or key. Then enter your Password and press
RETURN to accept the password, which will allow you to configure your system after
logging in for the very first time. Refer to Section 4.3.2 on page 3-3 for descriptions of the
various user levels.
4. Should you be the system administrator, the default Username is admin and the
password is admin. As this constitutes a Superuser access, it is highly recommended that
this default password be changed to prevent unauthorized access and enhance the security
of the IMACS-200. Refer to Section 4.3.2 on page 3 of Chapter 4 for further information.

System Operation

3-3

Running
Head
System
Power-up

Model No.
System Configuration and Operation

5. Once system access has been obtained, the IMACS 200 will prompt the user to assign
WAN and OWAN (if provisoined) port defaults. All four of the WAN or OWAN ports
must be set to the same interface type (T1 or E1). This main screen is shown in Figure 3-3.
Currently, the OWAN and WAN must be set to the same interface type, either E1 or T1.
Caution should be exercised when choosing the interface type to the WAN and OWAN.
All four ports available to the interface must be set to the same type, and changing the type
will require a reboot of the system software, dropping all services. Prior to the change, all
existing services and WAN / OWAN ports must be in the standby state.

Figure 3-3.WAN and OWAN Interface Un-provisioned Setting
Once the WAN and OWAN Types have been set as either T1 or E1, the user must save the
setting. This will prompt a reboot of the IMACS 200, and once completed then the typical
login screen will appear, as seen in step 6.
6. The System Main Screen appears. Figure 3-4 shows this screen.

3-4

System Operation

System Configuration and Operation

System Power-up

Figure 3-4.Typical System Main Screen
This completes the login process. If you are not familiar with the user interface screens of the
system, read the next section before proceeding. Otherwise, continue with the desired
operation.

System Operation

3-5

Model No.
System Configuration and Operation

Running
Head
System
Screens

3.4

System Screens
The system screen will display each port that is currently installed onto the system along with
the port status and location.

3.4.1

System Main Screen
After you log in, a System Main Screen Figure 3-6 appears, showing all of the ports currently
in the system. The port types and current port operational states also appear in this screen.
The highlighted line at the bottom of the screen lists some actions. Press the letter key that
corresponds to the desired action you want to perform. For example, to go to the Alarms
Screen (Alarms action) and see the current system alarms, press “a” (can be typed in either
uppercase or lowercase). Table 3-1 summarizes the System Main Screen actions.

Table 3-1. System Main Screen Actions
Action
Alarms
Xcon
sYstem
Logout
Oos

3.4.2

Function
Brings up the Alarm Screen. Refer to "Alarms and Alarm Filters” later in
this chapter.
Brings up the cross-connect screens.
Brings up the system screen for high-level system testing and maintenance.
Logs you off the system.
Allows authorized operators restart the unit.

Voice and Data Port Status
The System Main Screen also displays the status of the individual circuit ports of all WAN,
Voice and Dataports in the system. This information appears next to the port type, as shown
in Figure 3-5. The lowercase letters in the Status column fields indicate the states of the
individual port ports. The possible values for each port are s (Standby), a (Active), t (Test),
and l (currently in a Loopback state).

3-6

System Operation

System Configuration and Operation

System Screens

Figure 3-5.Typical port Status Display
From the System Main Screen, you can also access other screens, as shown in Figure 3-5.
These screens are described in the following paragraphs.

3.4.3

Service Type Main Screens
Each port type in the system has a port Main Screen associated with it. You can go from the
System Main Screen to any port Main Screen and configure that device. From a port Main
Screen, you can access a Test Screen to perform tests on the port, or (in some cases) a
Performance Monitor Screen to view transmission performance data.
Figure 3-5 shows the main screen of the IMACS-200 and reflects the port status. On the FXS
line, the user will note the four different ports, and that each port is in a different state. Port
one is on the left, and port four is on the right. The figure displays ‘aslt’ as the status of ports
one through four, which are: port 1 is in active state. Port two is in standby state, which is to
say it is out of service.Port three is in the loopback active state, in other words it is currently
involved in a user-initiated maintenance mode. And finally port four is in a test state, which
is a user-initiated testing mode. These states are used commonly on all the different service
types, and are a quick reference for the status of each port.
Figure 3-6 shows a typical port Main Screen. The highlighted line at the top of every screen
is the header. It lists the node name of the system, the current port type and abbreviated
description, the port design revision and serial number, and the current system date and time.

System Operation

3-7

Running
Head
System
Screens

Model No.
System Configuration and Operation

The port configuration parameters and current option settings appear in numerous rows and
columns below the header. This region of each screen lists the options on the left and one or
more associated columns of data fields from left to right. You can change the settings in those
fields as required for each port.
The status and data entry change line appears just above the bottom line of the screen. When
you choose a field to edit and press , this line shows the currently available option
settings for that field. Make all configuration changes on this line.

3-8

System Operation

System Configuration and Operation

System Screens

The highlighted area in the upper right corner shows the current alarm status data. In Figure
3-6 below, a yellow alarm has occurred on WAN port 4, and a Loss of Signal alarm has been
detected on WAN port 3.

Figure 3-6.Typical port Main Screen
The bottom line of each port Main Screen lists other actions you can perform by simply
pressing the letter key that corresponds to the uppercase letter of your desired action. In Figure
3-6, for example, if you press “s”, you will invoke the Save command, which saves the current
option settings in the system’s memory. The actions you can choose from this line depend on
which port and screen you are currently accessing. Refer to the associated chapters in this
guide for descriptions of those actions.

System Operation

3-9

Running
Head
Port
Configuration

3.4.4

Model No.
System Configuration and Operation

Test and Debug Screen
You can also go from the System Main Screen to a Test and Debug Screen, which allows you
to perform system-level maintenance operations. You can back up the system configuration
onto an external computer after saving and subsequently editing it, and (if necessary) you can
restore that configuration to the system. You also can erase the system configuration and
restart the system with a single “zip” command.
The system software also has a built-in debugging utility. However, this utility is only
available to factory software engineers. The system maintenance functions are described in
the “Testing and Debugging” section later in this chapter.

3.5

Port Configuration

3.5.1

Selecting and Configuring Your ports
The System Main Screen lists all system ports. You can access any port from the Main Screen
by moving the cursor in the installed interfaces column with the arrow keys until the desired
port is highlighted, then press . The associated port Main Screen now appears. The
only optional installed interface on the IMACS-200 is the Optical High Speed Data Unit
(OHSU).
Use the arrow keys to move the cursor around in any port screen. When changing port
parameters, some settings require you to enter your own values on the keyboard, while others
allow you to select from a list of pre-programmed option settings.
To enter a user-defined value in a field, first highlight that field by moving the cursor to it and
press . Then, type the desired value on your keyboard and press to store it in
that field.
To choose an option setting from a list of displayed options, press with the associated
parameter field highlighted. A series of available option settings now appears for that field.
Use the right-arrow and left-arrow keys to move the cursor to the desired setting, and press
to store that setting in the highlighted field.
Be sure to configure each port according to your networking requirements. From the System
Main Screen, select each port in turn and change the options for that port from its Main Screen.
Select the Save command by pressing “s” after making all the changes for a port, then press
“m” to return to the System Main Screen and choose another port. Similarly configure each
remaining port in your system.
Once configured, the port settings are permanently stored in Non-Volatile Random Access
Memory (NVRAM).

3-10

System Operation

System Configuration and Operation

3.5.2

Port Configuration

Recording Your Configuration Settings
You should always record the configuration option settings for each port after you set them.
This information may be needed later for system operation. To record the port configuration
data, first photocopy the pages showing the port Screens in the associated chapters of this
guide. Then, mark the option settings you want to use on those pages, and store the pages in a
safe place where they can be readily obtained.
You can also record screen settings by “capturing” each edited screen onto your computer
terminal while you are logged into the system. To do this, your computer must have a software
program capable of capturing the actual screens as text files. The communications software
you use to access the system may have this ability. You can then copy the screens to a word
processing program, print them out, and / or store them electronically.

System Operation

3-11

Running Headthe System
Reinitializing

3.6

Model No.
System Configuration and Operation

Reinitializing the System
The system stores information about its currently installed ports, the port configuration option
settings, WAN connections, passwords, and other data in nonvolatile memory (NVRAM).
When you change any settings on the port types, the NVRAM remembers the previous port
settings.
Restart capability is available on the IMACS-200. If the user desires to restart the
IMACS-200, capability is available on the main login screen with the Oos command. This
command will restart the box, as shown in Figure 3-7. preserving all provisioned data.

Figure 3-7.Rebooting the IMACS-200
If you have redeployed the IMACS-200, or otherwise desire to re-initialize the unit to the
default settings, you can “zip” it, causing it to be reprogrammed. From the main login screen,
enter ‘Y’ to go to sYstem. A screen such as what is seen in Figure 3-8 appears

3-12

System Operation

System Configuration and Operation

Reinitializing the System

Figure 3-8.System Screen - Test and Debug.
Once here, enter ‘Z’ to zip the system, and the screen seen in Figure 3-9 will appear.

Figure 3-9.Cold-Start NVRAM “Zip”Test and Debug Screen.

WARNING!
Confirming the "Z" command will start the ZIP process. "Zipping" the system deletes all of
the information stored on NVRAM and resets it. All ports must then be completely
reconfigured. When the zip is performed, user names and password data will be maintained.

System Operation

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Running Head
Alarms

When you press “z”, the system will ask, "OK to Zip the system (y/n)"? Press “y” to have the
system test and re initialize itself. All NVRAM information will be erased from the
IMACS-200, and a new log-in screen will appear. Since the user names and passwords are
maintained over the zip function, the user will be able to login as normal. Also maintained
over the zip function are the IP address(es) saved in the unit.

3.7

Alarms
Alarms warn you of problems by reporting possible system hardware or external facility
failures. The Alarm screen is accessed from the System Main Screen by pressing the "A" key
to go to the Alarm Screen (see Figure 3-10 through Figure 3-12). The Alarm Screen displays
the currently active alarms (if any) and provides access to the Alarm Filters and Alarm History
screens. Figure 3-10 shows a typical Alarm Screen with an active alarm.

3.7.1

Alarm Screens
Refer to Figure 3-10. To view the current system alarms, you can go from the System Main
Screen to an Alarm Screen. From the Alarm Screen, you can then go to an Alarm Filters
Screen and set up the alarm reporting filters. Or, you can access an Alarm History Screen (log)
and view alarms that were previously logged by the system. These screens and operations are
discussed in the “Alarms and Alarm Filters” section later in this chapter.

Figure 3-10.Typical Alarm Screen
The first character set (00513 in the above display) is the Alarm Sequence Number. This is a
sequential number from 1 to 65,535. It identifies the alarm for tracking and maintenance. In
the above example, the Alarm Sequence Number is 513.
The second character set (WAN-4) is the location of the problem. In this case, the WAN port
WAN-4 is affected and has reported the alarm.

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Alarms

The third character set is the alarm modifier (in this case, m indicates a minor alarm). See the
“Alarms and Alarm Filters” section later in this chapter for more information about alarm
modifiers.
The fourth character set (YEL) is the type of alarm generated (in this case, a Yellow alarm on
WAN port WAN-4).
The last two character sets are the date and time the alarm was logged.

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Model No.
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Running Head
Alarms

3.7.2

Alarm Filter Settings
You can set filters for each alarm so that the alarm reports occurrences in a number of different
ways. Figure 3-11 shows the Alarm Filters screen, which is accessed by pressing "f" (Filters
command) on the Alarm Screen.

Figure 3-11.Alarm Filters Screen
The first column of the Alarm Filters Screen is the alarm abbreviation that appears when an
alarm is generated. The second column is the associated full name of each alarm. Table 3-2
describes each alarm appearing in the Alarm Filters Screen.
The third column contains the filters ignore, log, and report. Set the filter to ignore if you
want the system to ignore the alarm. Or, set it to log if you want the system to show the alarm
report on the screen and also log it into the Alarm History, as described later in this chapter.
Set the filter to report if you want the system to send (report) the alarm indication to a remote
device. With this setting, the system will also display the alarm report on the screen and log it
into the Alarm History.
The fourth column of the Alarm Filters Screen contains the filter modifiers info, minor,
major, and crit. This column specifies a level of importance (information only, minor alarm,
major alarm, or critical alarm) for each alarm. These settings are described later in this chapter.
The last column sets the alarm cutoff (ACO) to aco-off or aco-on. These settings are explained
later in this chapter.
The filter in the third column takes precedence over its modifier. If, for instance, you have an
alarm filter set to ignore, the setting of the modifier as info, minor, major, or crit will be
ignored. Refer to system specifications section in this manual for alarms and their meanings.

3-16

System Operation

System Configuration and Operation

Alarms

Table 3-2. Alarm Filters
Filter
NOS
LOS
YEL

Alarm
No Signal
Loss of Synchronization
Yellow Alarm

AIS

Alarm Information Signal

CGA_RED

Carrier Group Alarm - Red

CGA_YEL

Carrier Group Alarm - Yellow

ERR

Excessive Error Rate

SENSOR

Alarm port Sensor

HI-TEMP

Temperature Alarm

FANFAIL
UCA

Cooling Fan Failure
User port/port alarm

RESET

System reset

ACO

Alarm Cut-Off

SYNC

Clock Sync Alarm

Meaning
Incoming WAN signal is lost.
Frame Alignment is lost.
The system has received a Yellow Alarm signal from a remote device.
Usually received when the device loses WAN signal or synchronization.
The system has received a Blue Alarm signal from a remote device. Usually
received when the remote or intermediate device has a major failure.
The local incoming WAN signal has a serious problem and trunk
conditioning is started. After receiving a RED alarm (NOS or LOS) for 2-3
seconds, the system initiates the appropriate trunk conditioning sequence
(see voice ports for information about the TC_CGA setting) and sends a
Yellow Alarm to the remote device. If the system is in drop/insert mode, it
also sends an AIS signal to the downstream equipment.
The system has initiated trunk conditioning in response to a Yellow Alarm
from a remote device. After 2-3 seconds, the system initiates the appropriate
trunk conditioning sequence (see voice ports for information about the
TC_CGA setting).
The error rate measured by the system has exceeded the threshold set on the
WAN port.
The Alarm port sensor has received an alarm indication from an attached
device.
The IMACS-200 has exceeded it’s ability to regulate the temperature in the
unit, and external action is required.
One of the two supplied fans has failed.
One or more active ports on a user port are not working properly. Voice ports
will show an alarm for excessive signaling transitions and data ports will
show an alarm for exceeding the data error threshold.
The system has been reset by either loss of power or by a system software
upgrade.
The ACO option forces you to manually clear certain alarms. Without this
option, self-correcting alarms might not be noticed. When the ACO option is
set to either Report or Log and the modifier is set to Major, alarms will report
normally but will also generate an ACO alarm. If the modifier is set to Minor,
it will not generate the ACO alarm. If the filter is set to Ignore, no alarms will
be generated. This can depend on whether or not the IMACS-200 is set for
latch or cur.
The SYNC alarm is generated when either the primary or secondary external
clock source is lost. This alarm is in addition to the condition that lost the
clock source (CGA-RED or OOS).

WARNING!Alarm Modifiers

Each alarm may also be designated as I=info, m=minor, M=major or C=crit. The filter
modifier appears on both the active alarm and alarm history screens.

System Operation

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Running Head
Alarms

Model No.
System Configuration and Operation

When interfacing to the External Alarm ports, the occurrence of any alarm designated as crit
will trigger a form-C relay contact on the External Alarm port. The relay contact action sets
off an annunciator or lamp at the equipment site. Similarly, the occurrence of any alarm
designated as major triggers a different contact and activates another external indicator. Refer
to the Alarm port Reference Guide for more information on the External Alarm ports.

3.7.3

Alarm Cutoff (ACO)
The ACO (Alarm Cutoff) security feature is used by the system to alert an operator to alarms
that clear themselves while the system is unattended. The ACO option settings are aco-on and
aco-off. If ACO is set to report or log alarms, any alarm set to report or log with a major
modifier brings up an additional alarm message on the screen. You must manually clear this
message, which is the ACO alarm message (depends on whether or not IMACS-200 is set for
latch or CUR). The ACO is used with the node port of the Interface port. It can also trigger an
external alarm device, such as a bell or lamp, that must also be manually cleared.
All ACO alarms must be cleared from the Interface port screen. ACO alarms can be cleared
automatically or manually.

3.7.4

Alarm Handling
Alarms set to either log or report record occurrences automatically to the Alarm History
Screen. To view that screen, press “h” (History command) in the Alarm Screen. Figure 3-12
shows a typical Alarm History Screen, in which you can update the log with any new alarms
that occur. To do this, press “r” to select Refresh in the Alarm History Screen. Or, to delete
all entries in the log, press “c” to select Clear in the Alarm History Screen.
The alarm log may contain more than one screen (page) of data. To scroll through the log,
press “u” or “d” (pgUp or pgDn) to move up one page or down one page at a time. The latest
alarms appear at the beginning of the log, which is on the first page of the alarm log.
All alarms (except those set to ignore) appear in the Alarms field in the upper right corner of
the screen, regardless of their setting in the Alarm Filters screen. The display in the Alarms
field is an abbreviated version of the alarm name and location number. For example,
CGA_RED below indicates that WAN port 2 has had a Major red alarm.

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Cross-Connecting (XCON)

Figure 3-12.Typical Alarm History Screen

3.8

Cross-Connecting (XCON)
From the System Main Screen, you can access a Cross-Connect Screen by pressing “x”
(Xcon) that lets you cross-connect WAN time slots between T1 links. For a detailed
description of making connections on and through the IMACS-200, see Section 3.10 on page
25 for information regarding making and managing cross-connects.

3.9

System Level Maintenance
You can also go from the System Main Screen to a Test and Debug Screen, by pressing “y”
(sYstem) which allows you to perform system-level maintenance operations. You can back up
the system configuration onto an external computer after saving and subsequently editing it,
and (if necessary) you can restore that configuration to the system (refer to the backup and
restore section later in this chapter). You also can erase the system configuration and restart
the system with a single “zip” command.

3.9.1

Test, Debug, Backup & Restore
Advanced configuration and diagnostics are available through the use of the sYs (sYstem)
command from the System Main Screen. Pressing “y” brings up the Test and Debug screen
shown in Figure 3-13.

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Running
HeadMaintenance
System
Level

Model No.
System Configuration and Operation

Figure 3-13.System Test and Debug Screen

3-20

System Operation

System Configuration and Operation

3.9.2

System Level Maintenance

Debugging the System
The D (Debug) command is only available to factory personnel with a password authorization
higher than "Superuser." It gives access to the system software coding.

3.9.3

Backing up the System Configuration Data
The IMACS-200 provides the capability to backup the system configuration to a PC or
network service device. This information will be contained in a file, and can be used to restore
the data to the same unit should it ever need to be re-installed, or to use the configuration as a
base file to place into other boxes with the same configuration to save time on installation.
There are two options for backup and restore, as seen in figure Figure 3-14. TFTP and
xmodem file transfer protocols are employed on the box.

Figure 3-14.Backup (and restore) File Transfer Protocols

3.9.4

Pre-TFTP Backup and Restore Preparation
To perform backup and restore uploads/downloads via the TFTP function, the following
method of connection to a Local Area Network (LAN) network must first be selected.
1. The first option requires that the system to which you will download be powered and
running through an active ethernet port that is connected to a LAN. The connection must
be made either in the box that will receive the downloaded or in a remote box routed
through the local IMACS-200 that is set as a gateway using IP protocol. You must be able
to ping the IMACS-200 IP address from the PC or server that you intend to use as a TFTP
server and vice versa. Setting up the host IP address, netmask and gateway are done at the
sYstem level, and then editing the parameters in the tcp/Ip screen as shown in figure
Figure 3-15 on page 3-22. The Host IP State must be set to the active status, and the Host

System Operation

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System
Level

Model No.
System Configuration and Operation

I P and netmask parameters must be set. You may need to change the routing table on your
PC to include the IMACS-200 ethernet address as the gateway, or the local host address
as the gateway for the system receiving the file as the destination IP address,

Figure 3-15.Setting the Host IP address

Note:

3.9.5

Your PC must have some sort of TFTP or TFTPD server software installed and
running when you are downloading the binary files to the system. If you are using
TFTPD type software it is easier if you set the root directory to indicate where the
binary file is located at the TFTPD root screen. This eliminates the need to enter a
path at the file name screen during the download process. If you are running a TFTP
software package, consult the user guide accompanying the software for details on
configuring and using the software.

TFTP Backup for 1.x.x
Follow the instructions listed below to perform a TFTP backup.
1. Log into the Integrated Access System using the Manager Password.
2. Press “Y” for System at the main menu.
3. At the Test and Debug screen press “B” for Backup.
4. The NV Ram Backup screen will appear. If the Protocol selected is xmodem, press Enter.
You will be shown the option of tftp on the bottom of the screen. Use the right or left arrow
key to move to tftp, and press Enter.

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System Level Maintenance

5. Press “G” for Go - an NV image overwrite command confirmation appears. Enter “Y”
for yes.
6. Confirmation appears when the NV Ram flash backup is complete. Press Enter as
prompted on the screen.
7. TFTP backup is now ready to proceed. Select TFTP by highlighting the appropriate
protocol using the arrow keys. Press Enter when TFTP is highlighted.
8. Press “G” for Go.
9. A series of four questions must be answered to complete the backup process. The
questions are as follows:
The system asks for the desired number of mismatch retries. Enter an appropriate number
between 1-40, with 20 as default. Press Enter.
The system asks for the desired number of Timeout Retries. Enter an appropriate number
between 1-10, with 4 as default. Press Enter.
Next, the system requires the IP address of the PC or TFTP server to which the backup
will be sent. Following entry of the IP address press the Return key to continue.
Finally, the system requires entry of the filename for the backup being performed.
Following entry of a filename the backup process begins. A TFTP backup complete
message appears when the process finishes.
Finally, the system requires entry of the filename for the backup being performed.
Following entry of a filename the backup process begins. A TFTP backup complete
message appears when the process finishes.

3.9.6

TFTP Restore for 1.x.x
Follow the instructions listed below to perform a TFTP restore.

Note:

Restore actions may be denied, based on several factors. Should the database
being restored not be an IMACS 200 database, or if it comes from a higher
release then is currently running on the IMACS 200, or if the checksum of the
file does not match the calculated value, then user will be presented with a
message indicating 'Invalid NV flash image'.

1. At the main menu press “Y” for System.
2. Press “E” for Restore at the Test and Debug menu.

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Model No.
System Configuration and Operation

3. Use the arrow keys to highlight the Protocol selection and press Enter.
4. Select TFTP and press Enter.
5. You will receive an NV Ram image overwrite confirmation message. Press “Y” for yes.
6. Enter the desired number of Mismatch retries and press Enter.
7. Enter the desired number of Timeout Retries and press Enter.
8. Enter the IP address of the PC or TFTP server and press Enter.
9. Enter the filename for the backup you wish to restore and press Enter. Restoration begins.
10. Following completion of the restoration process, the system will prompt to restore data
with the image that was uploaded. Press “Y” for yes.
11. The system asks to reboot. Press “Y” for yes. The system reboots and configuration
becomes active.

3.9.7

XMODEM Backup
Follow the steps listed below to perform an XMODEM backup.
1. Log into the Integrated Access System on which the backup is to be performed.
2. Press “Y” for System at the main menu.
3. When the Test and Debug screen appears, press “B” for Backup.
4. If the selection currently indicates TFTP, then press Enter.
5. Select xmodem using the arrow keys and press Enter.
6. Press “G” for Go. A confirmation appears upon completion of the NV Ram backup to
flash. Press Enter as prompted on the screen.
7. Prior to starting the backup or restore process, ensure that have the PC emulation package
is set to the XMODEM type format, otherwise an error will occur during the process.
XMODEM backup is now ready to proceed.
8. From the terminal screen select “Receive File” from the appropriate file menu. The
system prompts for a backup storage directory and filename. Following entry of the
appropriate information, backup begins. With most terminal emulation software (i.e.,
Hyperterminal, ProCom, or Smartcom) a status window will appear during the backup
process.

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Time Slot Assignment

9. A system backup completion message appears and the system then prompts you to press
Enter to continue. The backup is now complete.

3.9.8

XMODEM Restore
Follow the steps listed below to perform an XMODEM restore.

Note:

1. Log into the Integrated Access System to be restored.
2. To restore a previous backup access the main menu. Press “Y” for System.
3. Press “E” for Restore at the Test and Debug screen.
4. If the selected Protocol indicates TFTP, then press Enter.
5. Select XMODEM transfer method and press Enter.
6. Press “G” for Go to begin restore.
7. From the terminal emulation window select “Send File”. Enter the correct location and
filename of the backup to be restored and press Enter. Restoration should begin and a
progress monitor screen will appear.
8. Upon completion of the restoration, the system prompts whether or not to restore the NV
Ram image, select “Y” for Yes.
9. The system prompts whether or not to reboot. Select “Y” for Yes.
10. Following system reboot, login as usual and proceed as appropriate.

3.10 Time Slot Assignment
This section provides instructions for assigning DS0 time slots to the voice and data ports of
the IMACS-200. It also provides time slot cross-connection setup instructions.

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Assigning
Time Slots

Model No.
System Configuration and Operation

The IMACS-200 maximizes the use of incoming and outgoing T1 lines. You can do this by
assigning specific channels, or DS0 time slots, to voice and data ports in the system. You also
can cross-connect time slots between T1WAN ports of the system.
The WAN port allows you to connect one DS0 time slot to another. Throughout this chapter,
these connections are called "pass-through" circuits because they link a time slot from one T1
line to another through the system. You can therefore have up to four separate T1 links on two
WAN ports, in any cross-connect combination.
The following sections of this chapter describe several ways for you to administer your
networks and correctly allocate transmission bandwidth to meet your needs. The next section
deals with assigning time slots to the user voice and data port.
The third section deals with cross-connecting WAN time slots to other WAN time slots.
The fifth section describes signaling status, signaling, and companding conversion. The last
section shows you how to view the time slot map after making your assignments and
cross-connections.
This chapter defines "assigning time slots" as the process of connecting user port ports to
WAN ports and time slots, and it defines "cross-connecting time slots” as the process of
connecting WAN time slots to other WAN time slots in the system.

3.10.1 Modes of Operation
In the 1.x.0 system, the only mode available is XCON.

3.10.2 XCON Mode (XCON)
The XCON mode allows the user to cross-connect DS0s to user voice or data ports or to
cross-connect any DS0 on any WAN port to any DS0 on any other WAN port in the system.
The “Mode” setting on a WAN in a XCON system will only indicate the XCON option.

3.11 Assigning Time Slots
You must use a time slot map to specify the connections between all incoming and outgoing
lines connected to the system. The time slot map lets you split up your T1 bandwidth into
portions required for normal voice and data communications. It contains the connections for
all ports in your system.

3-26

System Operation

System Configuration and Operation

Assigning Time Slots

3.11.1 Assigning a Time Slot to a User port Port
You can define a time slot map from any user port (data or voice) for connections involving
that port, or from a WAN port for cross-connections involving only WAN ports. For example,
Figure 3-16 shows the E&M port Main Screen for the time slot assignments. Assign time slots
to a voice port as follows:
1. From the System Main Screen, select the desired voice port and press . That
port’s Main Screen appears.
2. Select the WAN port from which you want to assign time slots to the E&M port. In
Figure 3-16, this is wan-1 (for WAN 1, port 1).
3. Select a time slot (TS) for the first port. A number appears at the bottom of the screen
for the corresponding time slot on the WAN port.
4. Set the time slot number by using the up and down arrow keys to highlight it, then press
the key.
5. Change the STATE of the port from stdby to actv.
6. Repeat steps 2 through 5 for the remaining port ports, to assign time slots to them.
7. Press “s” to save your settings, using the Save command in the port Main Screen.

Figure 3-16.Typical E&M port Time Slot Assignments

System Operation

3-27

Model No.
System Configuration and Operation

Running
Head
Circuit
Names

3.11.2 Cross-Connect Model
The Cross-connect model allows you to access one T1 links for each of two WAN ports, for a
total of four T1 links. All WAN port connections to other WAN ports are accomplished
through the cross-connect option on the System Main Screen, and must be individually
specified.

3.12 Circuit Names
A cross-connect circuit in the IMACS-200 is formed when assigning one resource to another
using one or more time timeslots. Resources are User, Server and WAN ports.
When a resource is formed when assigning a user or server port to a WAN, a circuit is formed
and given a name according to the type of circuit and type of resources assigned Table 3-3 lists
the default circuit name assignments.

Table 3-3. Circuit Names
user_circuit

user port (FXS, to WAN)

net_circuit

WAN port to WAN port

usr_circuit

DS0 port to WAN port

Note:

Not all circuits formed in the IMACS-200 system have a direct relationship with a slot
and unit. These types of circuits are not maintained by the CNA. Circuits made
manually from the Cross Connect screen are not be affected by other resources.
Examples of this type of circuit are WAN-to-WAN and user circuits.

3.12.1 Display and Change Circuit Names
Circuits can be displayed on the Cross Connect screen by pressing the "x" key from the main
screen as shown below.

3-28

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Circuit Names

Figure 3-17.Cross Connect Screen
Circuits are then selected by moving the arrow keys up and down. Only network type circuits
are shown on the first Cross Connect screen.
To display a list of all cross connects in the IMACS-200 system from the Cross Connect
screen, select "View All". Below is a sample of this screen.Note that this is page one of two.
Using the ‘d’ for pageDown and ‘u’ for pageUp will display more pages.The rename circuit
screens following will be on page 2 of 2.

Figure 3-18.Cross Connect Screen -View All
Renaming Circuits
For the renaming feature, it does not matter which side of the circuit is selected, only the line
at which the original circuit is printed matters.
After hitting the 'n' key on the View All screen, circuits can be rename by hitting 'Enter' as
shown in the following figure.

System Operation

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Running
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Circuit
Names

Model No.
System Configuration and Operation

Figure 3-19.Cross Connect Circuit (Rename)
Hitting "S" to save the circuit name changes the name of the circuit as shown in the below
figure:

Figure 3-20.Cross Connect Rename Circuit (Saving)

3.12.2 Backup and Restore Circuit Name Table
The circuit name table can be backed up and restored via VNVRAM, adding additional
flexibility for managing circuit names.
When TFTP is used or NVRAM is backed up to FLASH, entire NVRAM is saved, including
the circuit name table.

3-30

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Circuit Names

Figure 3-21.NVRAM Backup Screen
When NVRAM is restored via TFTP or from FLASH, the entire image is transferred including
the circuit name table. The circuit name table shown as Xcon Names has been added to the
selections to allow ascii restore as shown in the figure below.

Figure 3-22.NVRAM Restore Screen
Upon restoring the Xcon Names table, changed circuit names will be restored into NVRAM
for recognition whenever the resource using it is next changed.
To change a circuit name permanently using NBR, change the circuit name in both the Xcon
Names and the Xcon Names selections. Changing the names in the Xcon table alone will only
preserve the name until next time the resource holding it is changed.

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Running Head
Cross-Connecting
WAN Time Slots

Model No.
System Configuration and Operation

3.13 Cross-Connecting WAN Time Slots
After assigning the user ports to DS0 time slots, you can also assign the remaining WAN time
slots for pass-through cross-connections betweenT1 links.
You can cross-connect WAN time slots from the System Main Screen. To perform
cross-connections, press “x” in that screen to invoke the Xcon command. The Cross-Connect
Screen in Figure 3-23 appears. In the cross-connect screen, type “a” to add a cross-connect
circuit. The Add command provides the fields used to program all of the "pass-through"
circuits in the network (See Figure 3-24). Table 3-4 lists the circuit parameters and their
options and default settings.

Figure 3-23.Cross-Connect Screen

Figure 3-24.Add a Cross-Connect Circuit Screen

3-32

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Cross-Connecting WAN Time Slots

Table 3-4. Time Slot Cross-Connection Options and Defaults
Parameter
CIRCUIT ID
W/U
TS/BW
W/U
TS/BW
SIG/TC

User Options
Any combination of letters or numbers up to 14 characters, including
spaces
wan-1 wan-2 wan-3 wan-4
table
wan-1 wan-2 wan-3 wan-4
table

Default
**************
wan-1
00
wan-1
00

CIRCUIT ID
A circuit is defined as a group of one or more DS0 time slots cross-connected from one WAN
link to another. Each circuit can carry either voice or data traffic, and needs its own name to
facilitate cross-connect management within the system. The Circuit ID field allows you to
name individual pass-through circuits. The factory-default ID is "new circuit.” However, you
can change the ID to show any relevant title for the pass-through connection, although each
circuit ID must be unique. This ID can contain up to 14 numbers, letters (uppercase and
lowercase), and spaces, in any combination. Figure 3-25 shows an example of a new circuit,
which is named E911 to PoPo.

System Operation

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Running Head
Cross-Connecting
WAN Time Slots

Model No.
System Configuration and Operation

WARNING!
When cross-connecting multiple independent data DS0 time slots (sequentially grouped time
slots should work) for data. Super-rate [data type cross-connect] is multiple DS0s sequentially
assigned between WAN aggregates in a cross-connect system. DO NOT attempt to save time
by cross-connecting independent data time slots as one super-rate circuit (could cause data
errors.) This limitation does not apply to voice time slots.

Figure 3-25.New Circuit Selection and ID Assignment
W/U
The first WAN Unit (W/U) column is the T1 link in which the pass-through connection begins
(since these circuits are bi-directional, the concept of beginning or ending is used for
illustrative purposes only). The options are all WAN ports and ports, and the identification
uses the same convention (wan-1, wan-2, etc.) seen earlier. If a WAN port is not present in
the W/U selected, an error message is generated.

3-34

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Cross-Connecting WAN Time Slots

The example in Figure 3-26 shows wan-1 as the selected WAN port.

Figure 3-26.WAN Unit Options
TS/BW
The first Time Slot/Bandwidth column shows the different time slots of wan-1 that will be
assigned to this pass-through connection. Figure 3-27 shows the selection of time slots 8 to
time slot 12 of wan-1 assigned to the start of the connection. Any number of time slots from
1 to 24 is allowed for T1 transmission.

System Operation

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Cross-Connecting
WAN Time Slots

Model No.
System Configuration and Operation

Make your selection by using the space bar and arrow keys. The arrow key moves from slot
to slot, and the space bar toggles between selecting and deselecting a time slot.

Figure 3-27.Time Slot and Bandwidth Options
W/U
The second WAN Unit column is the T1 link in which the pass-through connection ends. The
options are all of the WAN ports and ports. If a WAN port is not present in the W/U selected,
an error message is generated. Figure 3-26 shows the selection of W 1-3.

TS/BW
The second Time Slot/Band Width column shows the different time slots from WAN 1-3 that
will be assigned to this pass-through connection. Figure 3-27 shows the selection of 5 time
slots from WAN 1-3 assigned to the end of the connection. Any number of time slots from
1-24 would be accepted for T1 operation. The bandwidth is automatically assigned.
Make your selection with the space bar and arrow keys. The arrow key moves from slot to slot,
and the space bar toggles between selecting and deselecting the time slot. The number of DS0
time slots assigned to this half of the cross-connect circuit must equal the number assigned to
the other. Otherwise, the system will reject the connections and generate an error message.
Users dealing with a voice cross-connect circuit (with or without signaling) can access
capabilities from the WAN cross-connect screen. See the review at the end of this section.

3-36

System Operation

System Configuration and Operation

Cross-Connecting WAN Time Slots

SIG/TC
You can define a pattern to be transmitted on a cross-connected circuit if one of the circuit’s
two WAN links fails on a WAN to WAN cross-connect. This is known as Trunk Conditioning
(TC), and can be assigned for the transport channels. For circuits that terminate locally in the
IMACS-200, the field is populated as n/a, for not applicable.
The SIG/TC choices are shown in Figure 3-28. The off option turns off all trunk conditioning
and signaling off for the selected circuit, creating a clear-channel path. The other available
options will enable robbed-bit signaling for the cross-connected circuit: user (user-defined bit
pattern), e&m (trunk signaling), fxsl (foreign exchange station-loop-start), fxsg (foreign
exchange station ground-start), fxsd (foreign exchange station-defined network), plar
(private-line automatic ringdown), dpo (dial-pulse originating), fxol (foreign exchange office
loop-start), fxog (foreign exchange office ground-start), fxod (foreign exchange
office-defined network), dpt (dial-pulse terminating) and mrd (manual ringdown). The screen
below has been modified to display all the possible options.

Figure 3-28.Supported Signaling Trunk Conditioning Types

System Operation

3-37

Running Head
Cross-Connecting
WAN Time Slots

Model No.
System Configuration and Operation

If you choose user, also enter a two-digit hexadecimal code for the bit pattern to be sent in each
direction. Each digit can be from 0 to 9 or a to f. Figure 3-29 shows a typical signaling bit
pattern entry screen.

Figure 3-29.Options with choosing User Trunk Conditioning
Once a service has been selected on the SIG/TC screen, you will then need to select the idle
or busy pattern to send on a CGA event. On the example shown below in Figure 3-30, for the
timeslots chosen for WAN-3 and WAN-4 connection, a busy signal will be sent to the DS0
identified on WAN-4 should WAN-3 fail, and conversely an idle pattern will be sent should
WAN-4 fail.

Figure 3-30.Pattern to be sent on WAN failure

3-38

System Operation

System Configuration and Operation

Cross-Connect Actions

3.14 Cross-Connect Actions
Figure 3-5 summarizes the actions you can perform from the Cross-Connect Screen. These
actions appear at the bottom highlighted line of the screen.

Table 3-5. Cross-Connect Screen Actions
Action

Function

Add

Allows you to program additional pass-through cross-connects in the system. If
mistakes are made during the add process, pressing the up arrow or down arrow
key will terminate this operation.
uPdate
Initiated by pressing the "p" key. With this command, users can change any of the
parameters of a pass-through connection. Use the arrow keys to highlight the area
to be changed and close the transaction using the "s" (Save) command.
dElete
Initiated by pressing the "e" key. Use this command to delete existing
pass-through connections. The system will prompt users to delete the circuit, and
the "y" key must be pressed to complete the transaction.
pgUp
Initiated by pressing the "u" key. Since the system can handle many different
cross-connect circuits, users may exceed a single screen. New pages will be
added automatically to accommodate additional circuits. The page count feature
at the top of the screen shows the current page and the total amount of
cross-connect pages. Use this command to scroll up through the pages of
cross-connect information.
pgDn
Initiated by pressing the "d" key. This action is similar to the pgUp command.
Use this command to scroll down through the pages of cross-connect information.
View all or The View all action is initiated by pressing the "v" key. T
View net
Main
Return to the Main IMACS-200 screen.

System Operation

3-39

Running Head Actions
Cross-Connect

Model No.
System Configuration and Operation

To update a cross-connected circuit from the Cross-Connect Screen, highlight the circuit name
to be updated, and press “p” to invoke the uPdate command. Figure 3-26 shows the WAN port
1-3 and TS (time slots) 6 through 8 being updated. However if the WANs are selected and
deleted as shown in Figure 3-31 then the screen in Figure 3-27 will be blank for WAN TS 6
through 8.
To delete a cross-connected circuit from the Cross-Connect Screen, highlight the circuit name
to be deleted, and press “e” to invoke the dElete command. Figure 3-31 shows the deletion
process.

Figure 3-31.Delete Cross-Connection Screen

3-40

System Operation

System Configuration and OperationRecording the Time Slot Configuration

3.15 Recording the Time Slot Configuration
After setting up the initial system configuration and define the time slot map, record this
information on paper. Recording the initial configuration in a logical manner will help if you
have a problem later.
Record the information in a way that makes sense to you and will be easy for others to
understand. Also be sure to note the initial settings for each port in copies of the T1 operation
tables provided in Table 3-6. Store all initial configuration information in a safe place where
anyone needing to service the system can easily find it.

Table 3-6. Time Slot Recording Form for T1 Operation
WAN Port No. _______ - _______

TS Number

port Type

Port Number

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

3.16 Power Supply Redundancy
Each power supply component runs in a load-sharing mode, if your IMACS-200 is so
equipped. Should one of the supplies fail, the backup unit will automatically take over all the
power needs of the IMACS-200. Also, the defective unit will create a system alarm upon
failure, to alert an operator. Similarly, if the crafts person should disconnect one of the power

System Operation

3-41

Running
HeadRedundancy
Power
Supply

Model No.
System Configuration and Operation

feeds into the IMACS-200, the power supply fail alarm will be raised. Both the AC and DC
versions of the IMACS-200 can have backup power feeds and supplies, if so ordered. Upon
failure, the ALARM LED on the faceplate of the IMACS-200 will be turned on and a system
alarm will be generated.

3-42

System Operation

IMACS-200 General Features

Introduction

Chapter 4
IMACS-200 General Features
4.1

Introduction
The main login level of the IMACS-200 is the highest level and allows access to Alarms and
alarm filtering, overall cross-connect information, and access to backup and restore functions.

4.2

CPU Descriptions
The main CPU level is accessed as soon as a user logs into the IMACS-200. This main screen
is seen in figure Figure 4-1.

Figure 4-1.Main CPU level upon login
To enter into the CPU level to begin setting up the ethernet port and the other features
described in this chapter, simply press enter. The screen in Figure 4-2 will then appear.

General Features

4-1

Running
CPU
UserHead
Screens and Settings

4.3

Model No.
IMACS-200 General Features

CPU User Screens and Settings
The IMACS-200 main CPU has several user interface screens for port configuration and
network status viewing purposes. These screens are described in the remainder of this chapter.

4.3.1

CPU Main Screen
Figure 4-2 shows the CPU interface Main Screen. You must configure the CPU interface after
logging into the system for the first time. To view this screen, highlight the CPU line in the
Main Screen and press .

Figure 4-2.CPU Main Screen
The CPU has numerous settings that you must configure. The CPU Main Screen displays the
node name, the system location and contact prime, the alarm settings and the host software
version currently installed active. The settings are described in the next few sections of this
chapter.
The bottom highlighted line of the above screen shows a series of actions you can perform in
this menu. To perform an action, press the letter key associated with the uppercase letter of the
desired action. For example, to save your port option settings after making them, press “s” to
invoke the Save command. Table 4-1 lists and describes these actions.

4-2

General Features

IMACS-200 General Features

CPU User Screens and Settings

Table 4-1. CPU Main Screen Actions
Action

Function

Save
Undo
Refresh

Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
tcp/Ip
Allows the user to configure for TCP/IP functionality.
usrNames Allows additions to user names, groups, password administration.
Clock
Allows the user to set the IMACS-200 timing parameters, time of and date,
ACO activity
Main
Returns you to the System Main Screen. If you made changes to any port
settings but did not save them yet, you will be prompted to save or lose those
changes before exiting.

4.3.2

User Names, Passwords and Groups
You may want to change your system access passwords frequently, in order to maintain
optimum security on your network. The recommended passwords are a minimum of 6 and no
more than 12 characters in length, are not found in a dictionary, and contain both letters and
numbers. Because the system is case-sensitive for password entries, you can mix uppercase
and lowercase letters to provide more possible passwords.
The user administration function is activated by entering ‘n’ for usrNames from the CPU Main
screen, as shown in Figure 4-2 on page 4-2.

Note:

The passwords MUST be at least six characters long and MUST be a combination of
characters and at least one digit!

The system supports 256 possible users. Each user is defined by the use of three entries or
fields. The fields are editable by a user who has Administrator or Superuser access. Following
is a brief description to the user fields:

Table 4-2. User Access Table
User Name
An Alpha-numeric string
consisting of 6 to 12
characters. Duplicate user
names are not allowed,
i.e. all 256 user names
must be unique.

General Features

Password
An Alpha-numeric string
consisting of 6 to 12
characters.

User Group
A number from 1 to 32.

4-3

Model No.
IMACS-200 General Features

Running
CPU
UserHead
Screens and Settings

When the system is first commissioned, there is only one group defined:

Table 4-3. Default User Table
Default User Name
admin

Default Password

Default User Group

admin

Each user group represents a different access level that allows a login id to perform system
certain tasks after logging in.

4.3.2.1

User Groups
The User Group that is assigned to a user defines the access level that he or she has to various
system functions. The following example shows a portion of a user group provisioning table.
The system allows for 32 such user groups:

WAN PMs

Access
Provisioning

Access
Alarms

Access PMs

Administer
System

Administer
Users

RW
1
(Superuser)

WAN
Alarms

WAN
Provisioning

User Group
Number

Table 4-4. User Accesses by Group

N or R
or RW

4-4

General Features

IMACS-200 General Features

CPU User Screens and Settings

When the system is first commissioned, or after a ZIP function, the user group defaults to the
following configuration:

1
2 - 32

RW
R

Administer
Users

Administer
System

Access PMs

Access
Alarms

Access
Provisioning

WAN PMs

WAN
Alarms

WAN
Provisioning

User Group
Number

Table 4-5. Default Group Permissions

RW
R

User group 1 is the "Superuser" and its attributes are not provisionable. User groups 2 to 32
default to R in all attributes. They can have any one of 3 possible values entered into the
various cells of the user group table:
N = None. When "N" is entered in a section of the user group definition, users with that
group have no access to that part of the system, including its UI
R = Read Only. When “R” is entered in a section of the user group definition, users with
that group have read (or view) access to that part of the system, including its UI. However,
they can not make any changes or edits.
RW = Read/Write access (full access). When "RW" is entered in a section of the user
group definition, users with that group have read, write, and edit access to that part of the
system, including its UI

WARNING!It should be noted that users with the ability to Administer
Users will be able create new accounts with read/write access to ALL
categories. Care should be exercised in providing access to the
Administer Users function.
To change a password, first log into the system under a user who has the RW capability
assigned to Administer Users, or the admin level. Enter the CPU level, as shown in Figure 4-2
on page 4-2. Enter N for userNames, and a screen such as Figure 4-3 appears.

General Features

4-5

Running
CPU
UserHead
Screens and Settings

Model No.
IMACS-200 General Features

Figure 4-3.User Name Screen
Table 4-6 shows the valid actions that a user can perform when at the user name field.

4-6

General Features

IMACS-200 General Features

CPU User Screens and Settings

Table 4-6. usrName Screen Actions
Action

Function

Refresh
Add
Del
Group

Re-paints the current screen
Allows you to add a user
Allows you to delete a user
Displays the Group settings and access level permissions as explained in
Section 4.3.3 on page 9.
Login Log Provides the last 20 login and logout events.
pgup
Pages up
pgdn
Pages down.
Main
Returns you to the CPU Main Screen. If you made changes to any port
settings but did not save them yet, you will be prompted to save or lose those
changes before exiting.

Refresh
Selecting ‘R’ for refresh will renew the data presented on the screen.

Add
To add a user, choose the A function. Use carriage returns to update a field, and arrow keys to
move around in the screen. For Figure 4-4 below, the administrator chose Add, carriage return,
typed in “Pastel” and return, right arrow, return, typed “flood01” and carriage return,
confirmed the password by typing in “flood01” a second time and carriage return, right arrow
to the group field, carriage return and then used the up arrow until ‘06’ appeared and hit
carriage return. Don’t forget to save your changes!

Figure 4-4.Adding a User

General Features

4-7

Running
CPU
UserHead
Screens and Settings

Model No.
IMACS-200 General Features

Del
Selecting the ‘E’ delete function will allow the user to delete the user that the cursor is
currently positioned upon.

Group
Selecting ‘G’ will show the permissions for access to a Superuser that can be changed. These
are outlined in Section 4.3.3 on page 9.

Login Log
Selecting ‘L’ will take the user to a screen where the login log is stored. This table is read-only,
and will display the last twenty login and logout events.Figure 4-5 shows how a typical entry
will appear.

Figure 4-5.Login Log Sample Display
pgUp
Selecting the ‘U’ function will cause the screen to page up, if applicable.

pgDn
Selecting the ‘D’ function will cause the screen to page down, if applicable.

Main
Selecting the ‘M’ function will return the user back one level to the CPU Main Screen.

4-8

General Features

IMACS-200 General Features

4.3.3

CPU User Screens and Settings

Access Level Permissions
With the Admin level user, the Group setting can be changed on a group basis. Begin by
accessing the User Name Screen as shown in Figure 4-3 on page 4-6. Select the Group option
by typing “G”, and a screen such as in Figure 4-6 appears

Figure 4-6.Group Permissions Settings
Use the arrow keys to select the field and permission that you want to change, and access the
write capability by issuing a carriage return. The user can then set the access level to None,
Read only or Read Write (W) as desired. Following is the description of the Access Levels,
and what can be done in each.

WAN Provisioning
This covers all provisioning screens and activities associated with both the copper and optical
WAN interfaces.

WAN Alarms
This covers all alarm reporting screens and activities associated with both the copper and
optical WAN interfaces. Read access allows alarms to be viewed only. RW access allows
changes to severity, thresholds etc. (any provisionable alarm attributes)

WAN PMs
This covers all performance monitoring screens and activities associated with both the copper
and optical WAN interfaces. Read access allows PMs to be viewed only. RW access allows
changes to intervals, thresholds etc. (any provisionable PM attributes)

General Features

4-9

Running
Head
Other
CPU
Settings

Model No.
IMACS-200 General Features

Access Provisioning
This covers all provisioning screens and activities associated with all the access interfaces.
This includes OHSU, HSU, SRU, voice, alarm, and Ethernet posts

Access Alarms
This covers all alarm reporting screens and activities associated with all the access interfaces.
This includes OHSU, HSU, SRU, voice, alarm, and Ethernet posts. Read access allows alarms
to be viewed only. RW access allows changes to severity, thresholds etc. (any provisionable
alarm attributes)

Access PMs
This covers all performance monitoring screens and activities associated with OHSU, HSU,
SRU, voice, alarm, and Ethernet interfaces. Read access allows PMs to be viewed only. RW
access allows changes to intervals, thresholds etc. (any provisionable PM attributes)

Administer System
This covers system level activities such as IP addresses, inventory, software upgrade, data
base backup, setting the real time clock, setting sync sources etc.

Administer Users
This covers the provisioning and administration of users and user groups. Read access allows
user names and user group attributes to be viewed but not changed. RW access allows you to
edit user names, passwords, and user group attributes. It also allows you to disable all users
(ref. R-5.6.3.4 #5). You can never view passwords, even with RW access (ref R-5.6.3.1 #2).
Users, once logged in, can always change their own password regardless of the attribute of this
field in their user's group.

4.4

Other CPU Settings
You also must set the additional port parameters described below in the CPU Main Screen.
Most of these are user-defined alphanumeric entries. To make new entries in these fields, first
press to highlight the current entry in the lower left of the screen. Then, type the new
data on the keyboard. If you make a mistake, press either the backspace or key to
back up the cursor and erase the incorrect characters. Then, retype the correct characters.
Finally, press again to store the new entry in the field.

4-10

General Features

IMACS-200 General Features

Other CPU Settings

Figure 4-7.Other CPU Fields and Settings
Refer to Figure 4-7 for the following field definitions and their meanings.

NODE ID
In this field, enter a 14-character node name for the Integrated Access System. This entry must
be unique for each system in your network. It can have alphanumeric characters and spaces.

SUPERUSER
This field displays the current password for Superuser SNMP access. Only the Superuser
should see this field. This password level gives special access for maintenance and
diagnostics, to be used under the direction of a qualified technician.

MANAGER
This field displays the current password for Manager SNMP access. Only the Superuser and
the Manager should see this field. This password level gives full access to all configuration
options, diagnostic tests and password control.

OPERATOR
This field displays the current password for Operator SNMP access. The Superuser, Manager
and the Operator should see this field. This password level gives read / write access to
configuration options and diagnostic features.

General Features

4-11

Running
Head
Other
CPU
Settings

Model No.
IMACS-200 General Features

VIEWER
This field displays the current password for Viewer SNMP access. All users can see this field.
This password level gives read only access to configuration options and diagnostic features.

SYS CONT
In this field, enter the name of a person to contact for questions about the Integrated Access
System. This field can have up to 23 alphanumeric characters, including spaces. For
convenience, use the system administrator’s name in this field.

SYS LOC
In this field, specify the location of the Integrated Access System. This field can have up to 23
alphanumeric characters, including spaces.

SYS PH#
This field allows for the operator to enter the phone number where the unit resides, if
applicable.

ALRM SEQ
The Alarm Sequence setting establishes how the sequence number for alarms is generated. Set
this option to all if you want any alarm generated by the system to be assigned a sequence
number. Or, set this field to report if you want only the alarms set to report to have sequence
numbers.

ACO TYPE
The Alarm Cutoff (ACO) option reports a status to you based on the latch (condition held) or
cur (current condition) setting.

WAN TYPE
This field displays the type of WAN interface, either T1 or E1.

OWAN TYPE
This field displays the type of OWAN interface, either T1 or E1.

4-12

General Features

IMACS-200 General Features

Other CPU Settings

FCR
Fast Circuit Restore. This field can be set to on or off, the default is off. When set to off,
normal T1 recovery modes are in effect. When set to on, the services will restore as soon as
the facility becomes available for service. Selecting to on will typically recover data services
in 200 ms, and voice services after one second.

HW Rev.
This display-only field will indicate the revision of the hardware, and is used for some
hardware/software compatibility control.

Serial No
This read-only field displays the unique serial number programmed in the unit.

Software Version
This read-only field is updated with the latest version of software currently active on the unit.

Model
This read-only field displays the model information purchased, and should match the
information in the Ordering Guide, Table 1 in the Product Description Chapter at the
beginning of this manual.

General Features

4-13

Running
Head
Other
CPU
Settings

4.4.1

Model No.
IMACS-200 General Features

System Clock Source

Figure 4-8.Setting the System Clock Source
The IMACS-200 can be set to source to an incoming timing source from the WAN, the HSU,
the optional OWAN, or on its internal clock. Figure 4-8 shows this setting from the CPU Clock
screen. Choosing one of the three choices and saving the choice will force the system to time
off of that source.
The crafts person can choose a different source for both the Primary and Secondary inputs,
and the current clock field will update to the highest-order clock available. The primary clock
is always the systems first choice, followed by the Secondary clock and then finally the shelf
will internally time. For example, should the primary timing source fail, the system will
automatically switch to the secondary source. Should the primary timing source recover, then
the system will automatically switch back to the primary timing source. Should both the
primary and secondary sources fail, then the IMACS-200 will revert to internally timed. Loss
of the secondary timing source while the primary source is still available will have no impact
to the system operation.

4-14

General Features

IMACS-200 General Features

4.4.2

Other CPU Settings

Setting the System Time

Figure 4-9.Setting the System Time
From the Clock level of the CPU, the user can set the date and time as shown in Figure 4-9.
From this same level, the crafts person can execute the Alarm Cut Off (ACO).

General Features

4-15

Running
Head Management
SNMP
Network

4.5

Model No.
IMACS-200 General Features

SNMP Network Management
SNMP access allows users to remotely gather information, provision, test and monitor the
IMACS 200. This section presents this type of Network Management System (NMS) for
diagnosing and reporting trouble at unsupervised locations. The SNMP alarm traps and
configuration can connect using this alternate method. Both formats can use either the SA4 on
an E1 link, or a full DS0 on a T1 or E1 link.
If you do not understand the NMS concepts of IP addressing, SNMP, TELNET, and Ping,
please consult with your network administrator before attempting to install or repair
components presented in this section.
The first step in starting an operator session is to log into the system. You must enter a
password that allows you to perform the required tasks on the system. The initial (default)
SNMP Default Passwords / Community Names correspond to four different access levels,
each allowing you to perform certain tasks. Table 4-7 lists the default passwords and describes
the access levels.

Table 4-7. SNMP Users and Default Passwords
Default
Password and
Access Level
Community
Name

Description

superuser

*********

Special access for maintenance and
diagnostics, to be used under the direction
of a qualified technician. Reserved for
internal use only,

manager

Manager

Full access to all configuration options,
diagnostic tests and password control.

operator

Operator

Read/Write access to configuration and
diagnostic features.

viewer

Viewer

Read-only access to configuration and
diagnostic features.

The “Superuser” password is the highest level of access, followed by “Manager”, “Operator”,
and “Viewer” in sequence. Each level allows you to also perform all operations available to
the other levels below it. For example, if you log in under the “Operator” password, you can
configure the system and perform diagnostic tests, or you can simply view the current system
status and configuration data, which are the only tasks permitted under the “Viewer”
password.
All passwords are case-sensitive for maximum security. For example, the system handles
TechMan, TECHMAN, and Techman as three different passwords.

4-16

General Features

IMACS-200 General Features

SNMP Network Management

You can change your Manager, Operator, and Viewer passwords at any time. See your system
administrator to change your password or access levels.
A user who has read/write access to the Administer System system function (see Table 4-4 on
page 4-4) will have the ability to see and update all of the Passwords / Community Names used
for SNMP access. Users who have the Administer Users system function (see Table 4-4 on
page 4-4) will be able to view the Passwords / Community Names for Manager, Operator and
Viewer but will not be able to change or update them.

General Features

4-17

RunningNetwork
Head Management
TCP/IP

4.6

Model No.
IMACS-200 General Features

TCP/IP Network Management
Using IP addresses, you can communicate directly with the affected system, diagnose the
problem, and dispatch a technician if necessary.
Figure 4-10shows the TCP/IP Screen. To access this screen, press “I” (tcp/Ip) in the CPU
Card Main Screen. Table 4-8 summarizes the actions that can be performed from this screen,
and Table 4-9 lists the TCP/IP Screen parameters and options.

Figure 4-10.Typical TCP/IP Screen

4-18

General Features

IMACS-200 General Features

TCP/IP Network Management

Table 4-8. TCP/IP Screen Actions
Action
Ping

Netstat
rOute
Save
Undo
Refresh
Main

Function
Test whether the connected device responds to an echo request message.
After entering the IP address of the host device, the status line will display,
"Testing . . ." The next message indicates if the host is alive or down.
Displays the Network Statistics. See below.
Shows the Routing screen. See the “Routing” section below.
Saves changes to settings.
Returns all settings to the last saved state.
Used on Testing and Monitoring screens to update statistics, and on other
screens to redraw the screen.
Returns to the CPU card main screen. If changes are made to settings and
not saved, you will be prompted to save or lose changes.

Table 4-9. TCP/IP Screen Options and Defaults
Parameter
HOST IP STATE
HOST IP ADDR
HOST NETMASK
HOST TYPE
DEFAULT IP TYPE
DEFAULT IP SLOT
DEFAULT IP TS
DEFAULT GATEWAY
RPT1 IP ADDR
RPT1 COMMUN STR
RPT2 IP ADDR
RPT2 COMMUN STR
RPT3 IP ADDR
RPT3 COMMUN STR

User Options
actv stdby
IP address
Network
host gateway
none
local ether wan
ipr-fr
SA4
n/a wan-1 wan-2 wan-3 wan-4)
n/a table
IP address
IP address
IP address
IP address

Default
stdby
0.0.0.0
0.0.0.0
host
local ether
n/a
n/a
0.0.0.0
0.0.0.0
blank
0.0.0.0
blank
0.0.0.0
blank

HOST TYPE
The Host Type is used to control IP forwarding. When Host Type is set to gateway, IP
datagrams are allowed being forwarded. When Host Type is set to host, no forwarding is
allowed. For IP forwarding (routing) to work correctly, a route must be created in the routing
table.

DEFAULT IP TYPE
The Default IP Port setting, tells the IMACS 200 where IP packets will be sent when there is
no matching entry in the routing table. The options are none (no default route used), local
ethernet (SLIP/PPP over DB-9 serial port), wan (wan-1, wan-2, wan-3, wan-4), ipr-fr (IP
Router via Frame Relay) or SA4 (use of the 4kbps channel available for E1 customers).

General Features

4-19

RunningNetwork
Head Management
TCP/IP

Model No.
IMACS-200 General Features

DEFAULT IP SLOT
The Default IP Slot options are determined by the choice of Default IP Port. If none, local
ether or ipr-fr is selected for that parameter, this option will show n/a. If wan or sa4 is
selected, the options for this parameter will show wan-1 through wan-4(the WAN card slot
that transmits and receives NMS information).

DEFAULT IP TS
The Default IP Unit options are determined by the choice of Default IP Slot. If none, local
ether, ipr-fr or sa4 is selected for that parameter, this option will show n/a. If wan is selected
above, the options for this parameter will be table, and the user will need to define the
appropriate time slots to be used. (corresponding with the WAN port).

DEFAULT GATEWAY
The Default Gateway is used to control IP forwarding. IP datagrams are allowed being
forwarded to the assigned IP address.

RPT1 IP ADDR
The RPT1 IP Address is the IP address of the first Network Management System host running
an SNMP trap server.

RPT1 COMMUN STR
The RPT1 Community String holds the community string for the first NMS host running a
SNMP trap server. The community string provides additional security by rejecting messages
that do not contain the correct string. There must be some entry in this field to enable RPT1.

RPT2 IP ADDR
The RPT2 IP Address is the IP address of the second Network Management System host
running a SNMP trap server.

RPT2 COMMUN STR
The RPT2 Community String holds the community string for the second NMS host running a
SNMP trap server. The community string provides additional security by rejecting messages
that do not contain the correct string. There must be some entry in this field to enable RPT2.

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RPT3 IP ADDR
The RPT3 IP Address is the IP address of the third Network Management System host running
an SNMP trap server.

RPT3 COMMUN STR
The RPT3 Community String holds the community string for the third NMS host running a
SNMP trap server. The community string provides additional security by rejecting messages
that do not contain the correct string. There must be an entry in this field to enable RPT3.

4.7

Remote Administration
The Ethernet port allows the user to telnet into the IMACS-200 and allows for remote
management, configuration and downloading of host code via a 10baseT Ethernet port.

4.7.1

Setting Up Remote Connectivity
Before using the remote Ethernet port, the crafts person must perform the following steps:
1. From the CPU Main screen in Figure 4-2, enter ‘I’ for tcp/Ip, as seen in figure Figure 4-11.

Figure 4-11.Setting up Remote Connectivity
2. Leave the HOST IP STATE as stdby for now.
3. Enter in the HOST IP ADDRESS: [device IP address]

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4. Enter in the HOST NETMASK: [IP mask]
5. Select the HOST TYPE as either host or gateway. As a host system, the IMACS-200
terminates the IP when packets are destined for its address. As a gateway, the IMACS-200
has the ability to perform packet-forwarding to another destination.When choosing the
gateway option, the user can only select WAN as the Default IP type. Figure 4-12
illustrates the ability of the IMACS-200 to perform this daisy-chaining function in the IP
cloud.

Figure 4-12.IP Daisy-chaining on the IMACS-200
6. Select the DEFAULT IP TYPE as either none, local ethernet or wan
a. If wan is chosen, then the IP SLOT and IP TS will be accessible to the user. If this is
the case, datafill these fields with the WAN and timeslot where the Ethernet port will
be carried. Use of these fields will provide timeslots to the IMACS-200. Otherwise,
these fields will be n/a by default. Performing this action will set up port SCC3 as seen
in Figure 4-13, which enables the upstream management channel.

Figure 4-13.Displaying the SCC ports

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Remote Administration

b. Choosing Host type as gateway will set up the downstream management channel, or
SCC4. The IP static route must be set via the rOute option after you have saved the
above. To set up a static route, choose the rOute option from the tcp/Ip screen and
choose the add option, stepping through the required fields as shown in Figure 4-14.
This route will setup the SCC4 connection for the forwarded IP packets. The IP net
and SubNetMask indicate which packets will be forwarded.

Figure 4-14.Setting up a Static IP Route on the IMACS-200
7. Enter in the DEFAULT GATEWAY:[IP address]
8. Save the specified settings.
a. If using remote connectivity via WAN from an IMACS 800 or IMACS 200 acting as
a gateway, enter the IP route (option O).
b. If using remote connectivity from an IMACS MCC card, before pinging any of the
daisy-chained nodes you must inform your IP network of the route via the route
command. For example (using Figure 4-12 on page 4-22 as the network diagram), you
will need to add the following routes to your IP host:
route add 10.1.2.2 10.1.1.2
route add 10.1.2.3 10.1.1.2
route add 10.1.2.4 10.1.1.2
route add 10.1.2.5 10.1.1.2
9. Go back up to the HOST I P STATE in step 2 and change it to actv
10. Save the specified settings.
11. From a PC on the same IP network, enter:
a. Ping [device IP address]

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b. Telnet [device IP address]
12. From the IMACS-200:
a. Ping PC on IP network
13. From a PC on a different network than the IP network:
a. Ping [device IP address]
b. Telnet [device IP address]
14. From the IAD, Ping PC on the network different from IP subnetwork.

4.7.2

Network Statistics Screens
The Network Statistics Screens provide maintenance and diagnostic information for the
different protocols supported by this equipment. The system starts accumulating statistics
when the TCP/IP Port is changed from off to local or wan, and it continues to store
information until it is turned off.
Figure 4-15 shows the first of eight Network Statistics Screens, and Figure 4-15throughFigure
4-17show the other three screens. To go to the first screen, press “n” in the TCP/IP Screen to
choose Netstat from the bottom line of that screen. Table 4-10 lists the actions that can be
taken from the Network Statistics Screens, and the following paragraphs describe the
parameters in each screen.

Figure 4-15.Typical Network Statistics Screen, Page 1

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Remote Administration

To move from one screen (page) to another, press “d” (pgDn) or “u” (pgUp). Pressing “d”
goes to the next-highest page number. If you are on Page 4 when you press “d”, you will wrap
around to Page 1. Page 4 is currently not used on the IMACS-200, and therefore present not
data. Pressing “u” goes to the next-lowest page number. If you are on Page 1 when you press
“u”, you will wrap around to Page 4.

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Table 4-10. Network Statistics Screen Actions
Action
pgUp

pgDn
Refresh
Main

4.7.2.1

Function
Scrolls backward through network statistics, one page at a time. If you are
on the first screen (Page 1), automatically “wraps around” back to the fourth
screen (Page 4).
Scrolls forward through network statistics, one page at a time. If you are on
Page 4, automatically “wraps around” back to Page 1.
Since the system does not update statistics automatically, the Refresh
command must be used to update information in statistics fields.
Returns to the TCP/IP Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

IP Parameters
The IP parameters appear in the first Network Statistics Screen (Figure 4-15). These are
described below.

Default TTL
The Default TTL field shows the Time To Live for information packets from transmission to
delivery. The TTL for this system is 255 seconds.

Datagrams Received
The Datagrams Received field shows the number of IP datagrams (packets) received by the
local system from the network host.

Datagrams Disported
The Datagrams Disported field shows the number of datagrams that were disported by the
local system.

Datagrams Delivered Above
The Datagrams Delivered Above field shows the number of datagrams sent to the TCP layer
of the network host to the local system.

Datagrams From Above
The Datagrams From Above field shows the number of information or traps sent by the local
system to the UDP or TCP layer of the network host.

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Datagrams Sent
The Datagrams Sent field shows the total number of datagrams sent by the local system to the
network host.

TX Disported - RAM
The TX Disported - RAM field shows the total number of datagrams sent by the local system
that were disported due to lack of free RAM memory.

TX Disported - Mailbox Short
The TX Disported - mailbox short field shows the total number of datagrams aborted by the
local system because of a mail subsystem overflow.

TX Disported - Other
The TX Disported - other field shows the total number of datagrams disported due to other
causes.

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4.7.2.2

Model No.
IMACS-200 General Features

TCP State Parameters
The TCP state parameters appear in the third Network Statistics Screen (Figure 4-16). They
are described below.

Figure 4-16.Typical Network Statistics Screen, Page 2
Packets Received
The Packets Received field shows the number of TCP packets received by the local system
from the network host.

Packets Disported - Checksum
The Packets Disported - Checksum field shows the number of TCP packets that were
disported by the local system because the checksum failed.

Packets Disported - Port
The Packets Disported - Port field shows the number of TCP packets that were disported by
the local system because the port assignment was incorrect.

Packets Disported - Window
The Packets Disported - Window field shows the number of TCP packets that were disported
by the local system because the window data was incorrect.

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Bytes Delivered Above
The Bytes Delivered Above field shows the number of information or traps sent from TCP
layer of the network host to the local system.

Bytes From Above
The Bytes From Above field shows the number of information or traps sent to the TCP layer
of the network host from the local system.

Packets Sent
The Packets Sent field shows the total number of TCP packets that were transmitted to the
network host by the local system.

ACKs Received
The ACKS Received field shows the total number of acknowledgments that were received by
the local system from the network host.

Packets Sent - Reset
The Packets Sent - reset field shows the total number of TCP packets that were transmitted by
the network host to the local system.

Packets Sent- ACK
The Packets Sent - ACK field shows the total number of TCP acknowledgment packets that
were transmitted by the network host to the local system.

Packets Retransmitted
The Packets Retransmitted field shows the total number of TCP packets that were
retransmitted by the local system to the network host.

RTT Increased
The RTT Increased field shows the number of times the retransmission time-out was increased
because the system was busy.

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RTT Decreased
The RTT Decreased field shows the number of times the retransmission time-out was
decreased because the system was not busy.

Connections Opened
The Connections Opened field shows the total number of connections that were opened by the
local system to the network host.

Connections Closed
The Connections Closed field shows the total number of connections that were closed by the
local system to the network host.

Connections Aborted
The Connections Aborted field shows the number of times the connection was aborted
because either the number of consecutive retransmissions was equal to 10 or retransmission
time-out was equal to 15 minutes.

Packets TX Aborted - RAM
The Packets TX Aborted - RAM field shows the total number of packets sent by the local
system which were aborted because of the lack of free RAM memory.

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4.7.2.3

Remote Administration

UDP Parameters
The UDP parameters appear in the fourth Network Statistics Screen (Figure 4-17). They are
described below.

Figure 4-17.Typical Network Statistics Screen, Page 3
Packets From Above
The Packets From Above field shows the number of UDP packets sent by the local system to
the network host.

Packets Sent
The Packets Sent field shows the number of UDP packets transmitted from the local system
to the network host.

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4.7.2.4

Model No.
IMACS-200 General Features

TELNET Parameters
The TELNET parameters also appear in the fourth Network Statistics Screen (Figure 4-17).
They are described below.

Bytes Received
The Bytes Received field shows the total number of bytes that were received by the local
system from the network host.

Bytes Receive as Commands
The Bytes Received as Commands field shows the total number of bytes that were received
as commands by the local network from the network host.

Bytes Delivered Above
The Bytes Delivered Above field shows the total number of bytes that were transmitted by the
network host to the local system.

Bytes Replied as Commands
The Bytes Replied as Commands field shows the total number of bytes that were transmitted
as commands by the local system to the network host.

Bytes From Above
The Bytes From Above field shows the total number of bytes that were received by the
network host from the local system.

Bytes Sent
The Bytes Sent field shows the total number of bytes that were transmitted by the local system
to the network host.

Sessions Opened
The Sessions Opened field shows the total number of sessions that were opened by the local
system with the network host.

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Sessions Closed
The Sessions Closed field shows the total number of sessions that were closed by the local
system with the network host.

TX Wait for Buffer
The TX Wait for Buffer field shows the total number of transmissions that were delayed by
the local system for free memory in the buffer.

4.7.2.5

SNMP Parameters
The TELNET parameters also appear in the fourth Network Statistics Screen (Figure 4-17).
They are described below.

PDUs Sent
The PDUs Sent field shows the number of Protocol Data Units sent from the local system. A
Protocol Data Unit is a data object exchanged by protocol drivers, usually containing both
protocol control information and user data.

Traps Sent
The Traps Sent field shows the total number of SNMP traps that were transmitted by the local
system to the network host.

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4.7.2.6

Model No.
IMACS-200 General Features

SCC Parameters
The SCC parameters for ports C1 through C4 appear in the fourth through seventh Network
Statistics Screen (Figure 4-18). They are described below.

Figure 4-18.SCC Port Parameters
In Packets
The In Packets field shows the number of packets received by the local system.

In Octets
The In Octets field shows the number of bytes received by the local system.

In Discards
The In Discards field shows the number of packets received by the local system which were
unable to be processed and therefore discarded. This is likely due to an over-messaging or
resource issue.

In Unknown Protos
The In Unknown Protos field shows the number of packets received by the local system which
are of an unknown protocol.

In Errors

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The In Errors field shows the number of packets received by the local system which had errors
and were discarded as faulty.

Out Packets
The Out Packets field shows the number of packets sent by the local system.

Out Octets
The Out Octets field shows the number of bytes sent by the local system.

Out Discards
The Out Discards field shows the number of packets sent by the local system which were
unable to be processed and therefore discarded. This is likely due to an over-messaging or
resource issue.

Out Errors
The Out Errors field shows the number of packets sent by the local system which had errors
and were discarded as faulty.

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4.7.2.7

SA4 Parameters
The SA4 parameters appear in the eigth Network Statistics Screen (Figure 4-19). They are
described below.

Figure 4-19.SA4 Bit Parameters
In Packets
The In Packets field shows the number of packets received by the local system.

In Octets
The In Octets field shows the number of bytes received by the local system.

In Unknown Protos
The In Unknown Protos field shows the number of packets received by the local system which
are of an unknown protocol.

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Host Software Upgrade Procedure

In Errors
The In Errors field shows the number of packets received by the local system which had errors
and were discarded as faulty.

Out Packets
The Out Packets field shows the number of packets sent by the local system.

Out Octets
The Out Octets field shows the number of bytes sent by the local system.

Out Errors
The Out Errors field shows the number of packets sent by the local system which had errors
and were discarded as faulty.

4.8

Host Software Upgrade Procedure
This section provides procedures for upgrading Integrated Access System host software. The
procedures for upgrading from 1.0.0 to the next release.
The host software is stored in flash memory facilitating download of future software releases
to the IMACS-200.
The preferred upgrade method is using tftp protocol. The estimated time to upgrade an
IMACS-200 with xmodem is 1.5 hours, whereas upgrading the unit with tftp takes
approximately 5 minutes.

4.8.1

Equipment Requirements
Following are the equipment requirements for host software upgrade.
•

IMACS-200 equipped with latest host software

•

Laptop computer running Windows OS

•

Serial port cable to connect to the TERM port on the Integrated Access System

•

The next available Host software on disk or loaded into laptop computer

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4.8.2

Model No.
IMACS-200 General Features

Laptop Setup
Follow the steps listed below to set up the laptop computer.
1. Boot the laptop.
2. Click “START”.
3. Select “Programs”, “Accessories”, and click on “HyperTerminal”.
4. In the HyperTerminal window, double click on “Hypertrm” icon.
5. In the New Connection window, Enter Name: enter Upgrade.
6. Select icon and click OK.
7. In Connect to Window, Connect Using, click down arrow and select “Direct to COM1”.
8. Click OK.
9. In COM 1 window, set BITs per second to “9600” (leave other settings as is) click OK.
10. In Upgrade window, click File menu, select Properties, and select Settings.
11. In Emulation window, select VT100 and click Terminal Setup.
12. Select 132 column mode, click OK.
13. Close Properties window and save.
14. Right click on Upgrade Icon and select Create Shortcut.
15. Drag shortcut to the desktop.

4.8.2.1

Log Upgrade Activity
Create a log to record upgrade activity on a per-site basis that includes the following
information:

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•

Site name, date and time, and name of technician performing upgrade

•

System name(s) and number of ports per system

•

Model, serial number, and host version

•

Model, serial number, and host version

General Features

IMACS-200 General Features

4.8.3

Software Download Procedures

Upgrade Preparation
Follow the steps listed below to perform an upgrade.
1. Connect the laptop to the TERM port on the Integrated Access System.
2. Press Enter, and log into the system.
3. Using the arrow keys, move the cursor to CPU and press Enter.
4. Verify and record the current host software version.

4.9

Software Download Procedures

4.9.1

XMODEM Protocol Binary Download

Note:

Using XMODEM to upgrade the IMACS-200 will take approximately one and a half
hours. Where possible, tftp upgrades should be employed.

Follow the steps listed below to perform an XMODEM protocol bin download.
1. Set up a direct connection to the VT-100 craft port.
2. Locally connect the PC to the VT-100 craft port. Log into the system with Administer
System access.
3. Highlight CPU and press “P”.
4. The binary buffer area appears, and one of the buffers displays in an active state. The other
buffer may be empty or may have a file in it.
5. If both buffers have files in them, highlight the buffer that is not active. Press the Enter
key and four options appear at the bottom of the screen. Using the arrow keys, highlight
the erase parameter and press Enter. When the system finishes erasing the buffer it will
indicate an empty state.
6. Using the arrow keys, highlight the empty buffer area and press Enter. Four parameters
will appear on the screen. Using the arrow keys, select the dnload (download) parameter
and press Enter. Two parameters will appear at the bottom of the screen.
7. Using the arrow keys, select the XMODEM parameter and press Enter. The letter “C” will
begin duplicating across the screen. This is normal and does not indicate a problem.

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8. At the HyperTerminal screen, select file transfer and send the file. Choose the appropriate
binary file to download using the XMODEM protocol to BIN buffer 1 or 2, depending
upon which bin is empty.
9. Following completion of the download process, make the newly loaded bin active and
then erase the existing firmware from the now inactive bin. Perform the download process
again so that both buffers have the same firmware applied to them.

4.9.2

Pre-TFTP Binary Upload/Download Preparation
To perform binary (bin) uploads/downloads via the TFTP function, one of the following two
methods of connection to a Local Area Network (LAN) network must first be selected.
The first option requires that the system to which you will download be powered. The
connection must be made either in the box that will receive the downloaded file or in a remote
box routed through the local CPU that is set as a gateway using an IP protocol. You must be
able to ping the IMACS-200 and the local and remote CPU host IP addresses from the PC or
server that you intend to use as a TFTP server and vice versa. You may need to change the
routing table on your PC to include the IMACS-200 ethernet address as the gateway, or the
local host address as the gateway for the system receiving the file as the destination IP address.

Note:

4.9.3

Your PC must have some sort of TFTP server software installed and running when you
are downloading the binary files to the system. If you are using TFTPD type software
it is easier if you set the root directory to indicate where the binary file is located at
the TFTPD root screen. This eliminates the need to enter a path at the file name screen
during the download process. If you are running a TFTP software package, consult
the user guide accompanying the software for details on configuring and using the
software.

Loading the Software Image Using the Ethernet Port
Follow the steps listed below to perform an software download and activate new firmware on
the CPU. It may be helpful to backup the device configuration before activating the
downloaded software. Activating software resets the CPU and initializes the IMACS-200.
1. Using a Telnet session over the Ethernet port, establish a connection to the desired IAD.
To setup the Ethernet port, see “Setting Up Remote Connectivity” on page 21.

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Note:

Software Download Procedures

When upgrading from a PC, an ethernet cross-over cable will be required. Use the
TCPIP settings to put your PC on a network connection (such as 192.0.0.1), and set
the IMACS-200 on the same subnet (such as 192.0.0.2).

2. At the Login screen, enter the system password.
The Main screen appears.
3. With the cursor on the CPU level, press P.
The Flash screen appears with status and data for memory blocks 1 and 2.

Figure 4-20.Flash Screen
4. Select the block to be replaced or updated. Press Enter.
The Flash screen appears with the software download commands at the bottom of the
screen.

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Figure 4-21.Flash Screen with Commands
5. Select the desired command. Press Enter.
The activate, download, and erase cannot be performed on the active software.
6. Enter Y to replace the current software.
The system removes the current software from the selected block.
7. Select the tftp option. Press Enter.
8. Enter the desired number of mismatch retries. Press Enter.
Default value is 20.
9. Enter the desired number of timeout retries. Press Enter.
Default value is 4. The Flash Screen appears with the software removed from the selected
bin.

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Software Download Procedures

Figure 4-22.Flash Screen with Software Removed
10. Enter the IP address of the TFTP server. Press Enter.
11. Enter the firmware filename. Press Enter.
The download software appears in the Flash screen.

Figure 4-23.Flash Screen with Downloaded Software
12. With the desired software block selected, press Enter.
The activate and deactivate options appear at the bottom of the screen.
13. Verify the checksum value for the software load to ensure a successful download.
Checksum values appear in the product release notes. Even for the same software load,
the checksum values differ for each software block.
14. Select Activate and press Enter.

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This resets the IMACS-200 and makes the selected software the current active load.
Upon reset and activation, you will lose the current Telnet connection.

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CPU Error Messages

4.10 CPU Error Messages
Refer to Appendix B in this Guide for further information on Error Messages regarding this
port.

4.11 CPU Troubleshooting
On power-up, the IMACS-200 performs a self-test. This is the only diagnostic available for
the first release of the unit. A “healthy” active IMACS-200 will have a green LED lit on the
front panel.
The indications that a IMACS-200 is not on-line are:
•

Continuous amber alarm LED on front panel or the LEDs continually cycling through the
orange, green, red, blank sequence.

•

Inability to communicate with the system by any means (VT-100 Term, Telnet, etc.).

If the IMACS-200 is determined to be faulty, replace it and return the faulty unit for repair to
the location specified by your distributor.

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General Features

WAN ports

Introduction

Chapter 5
WAN ports
5.1

Introduction
This chapter provides configuration and troubleshooting information for the Wide-Area
Network (WAN) ports. There are four WAN ports available on the IMACS-200.
The WAN ports manage the flow of data through the IMACS-200 network. They terminate
T1or E1 lines and generate or receive network timing clocks. They also cross-connect DS0
time slots, to pass data through the system from one T1or E1 line to another.

5.2

WAN port Descriptions
The WAN ports are used for connection to a 1.544 Mbps T1 network, or to a 2.048 Mbps E1
network. There are four ports available on the IMACS-200, ports numbered wan-1, wan-2,
wan-3 and wan-4. Connection to the WAN ports are made through the rear panel of the
IMACS-200, labeled T1/E1 and numbered 1 through 4. The access to these ports is via four
separate RJ45 connectors. Refer to Section Table 2-6. on page 10 of the System Installation
chapter for pinouts of the WAN connections.

WAN Ports

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5.3

WAN port User Screens and Settings

5.3.1

WAN Settings for T1 and E1

Model
WAN
portsNo.

Table 5-1 shows the WAN port Main Screen for T1 operation.

Figure 5-1.WAN T1 Port Main Screen
Table 5-2 shows the WAN port Main Screen for E1 Operation.

Figure 5-2.WAN E1 Port Main Screen

5-2

WAN Ports

WAN ports

WAN port User Screens and Settings

Table 6-1 summarizes the actions you can perform from this screen, and Table 6-2 lists the
settings controlled on the screen along with their possible and default values.

Table 5-1. WAN Screen Actions
Action

Function

Save
Undo
Refresh

Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Displays the connections for the selected WAN port.
Brings up the Performance Data Screen. See the Performance Data section of
this chapter.
Shows the far-end network register data.
Initiates and monitors testing of all WAN port ports. Refer to the Test section
of this chapter.
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or abandon your changes.

Xcon
Perf
Farstat
Test
Main

Table 5-2. WAN Screen Option Settings and Defaults
Parameter
STATE
FORMAT
LINE CODE
FRAME
TS16
EVEN BIT
LINE LEN
LINE LB
LOCAL LB
LB GEN
LB DET
EER THRHD
COM/NMS RP

User Options
stdby actv
d4 esf
ami b8zs hdb3
crc d-frm
cas ccs nos
norm inv
110 220 330 440 550 660 0DB 7.5DB 15DB 22.5DB
off on
off on
off llb plb nlb
w/to off on
10e-4 through 10e-9 none
none e-sa4

Notes

Default

stdby
esf
b8zs or hdb3

2
2
2
1

1
1
2

110
off
off
off
w/to
10e-4
none

Notes: 1 is used to indicate a T1 field only, 2 indicates E1 only

STATE
In the standby state, the WAN port is electrically disconnected from the external network. Set
State setting to stdby (standby) when setting up your WAN links, then changes it to actv
(active) when starting normal operations.If the WAN is in loopback due to a command from
a remote device, the loopback will be dropped if you switch to stdby.

WAN Ports

5-3

Running
WAN
portHead
User Screens and Settings

Model
WAN
portsNo.

FORMAT
The Frame setting toggles the frame format to be used on the T1 WAN link so that it matches
the frame format used by the T1 carrier. Set the format Parameter based on the type of frame
format the T1 carrier requires. The options are d4 (normal superframe) or esf (extended
superframe).

LINE CODE
The Line Code setting matches the Line code used by the T1 interface to that used by the T1
network. Set the Line Code to the type of Line Code used. The options are ami and b8zs for
T1. For E1, the options are ami and hdb3.

FRAME
The Frame setting toggles the frame type from crc (Cyclic Redundancy Check, 4th level) to
d-frm (Double Frame) in the E1 mode only.

TS16
The TS 16 setting is used in the E1 mode only, and changes the signaling usage of slot 16 for
cas (Channel Associated Signaling), ccs (Common Channel Signaling) or nos (No Signaling).
In the first two options, time slot 16 is used to carry signaling information for all channels on
the E1. If nos is selected, then time slot 16 becomes available for user data.

EVEN BIT
The Even Bit parameter is used in E1 mode only, and the option for inv will cause the system
to invert every even bit in every DS0 time slot. This setting should only be used if the entire
E1 stream is composed of PCM voice, to ensure minimum-ones density.

LINE LEN
The Line Length setting adjusts the T1 power level to compensate for the distance the signal
must travel before it reaches the first T1 line repeater or other device. For the DS1 interface,
the options are 110, 220, 330, 440, 550, and 660 feet or 0, 7.5, 15, and 22.5 dB.

5-4

WAN Ports

WAN ports

WAN port User Screens and Settings

LINE LB
The Line Loopback setting loops the T1 line back towards the network, as shown in Figure
5-3. This loopback also continues sending the incoming data toward the CPE. Choosing on
allows you to test the end-to-end T1 circuit path from the far end. Choosing off disables the
loopback and restores the normal signal path in both directions. If the WAN is in loopback due
to a remote device, the loopback will be dropped if you choose on.

Figure 5-3.Line Loopback
LOCAL LB
The Local Loopback setting allows you to loop the full T1 line back toward the CPE, as shown
in Figure 5-4. This loopback also continues sending CPE data towards the network. Choosing
on allows you to test the local system. Choosing off disables the loopback and restores the
normal signal path in both directions. If the WAN is in loopback due to a command from a
remote device, the loopback will be dropped if you choose on

Figure 5-4.Local Loopback

WAN Ports

5-5

Running
WAN
portHead
User Screens and Settings

Model
WAN
portsNo.

LB GEN
The Loopback Generate setting (available only in esf format) generates out-band diagnostic
codes that are sent to the remote equipment. These codes are compatible with DDS networks
and allow you to command a latching loopback at remote DDS equipment. The options are
off, llb (Line Loopback), plb (Payload Loopback) and nlb (Network Loopback).
Selecting off generates a loopback deactivate command corresponding to the last activation
command generated. e.g. if you send a plb command and then send an off command, the off
command would be payload deactivate. Note that the actual transmission of the command
happens after you press ‘s’ for Save. If you have already sent one of the loopback activation
commands, it is recommended that you send an off command before sending another loopback
activation command. e.g. this set of selections plb, off, llb, off transmits the following
commands: payload activate, payload deactivate, line activate, and line deactivate.

LB DET
This option allows the card (available only in esf format) to detect DS1 channel, and ANSI
T1.403 loopbacks. When set to off, no T1 loopbacks can be detected. When set to on, T1
Loopbacks will be detected and maintained until a loop down is detected. The with/time-out
(w/to) is the same as on except that if no loop down is detected after ten minutes, the loopback
will self-terminate. If the WAN is in loopback due to a command from a remote device, the
loopback will be dropped if you choose off.

EER THRHD
The Excessive Error Rate Threshold selects the error rate, which an alarm is declared. This
setting interacts with the EER setting in the Alarm Filters of your system. The options are
10e-4 through 10e-9, or none.

COM/NMS RP
The Communications/Network Management System Report setting (available for E1
customer only) tells the system where to send TCP/IP packets from the NMS configuration
selected. The options are none (no NMS), or e-sa4 (send NMS information in a proprietary
ESF format via the SA4 channel to an NTU).

5-6

WAN Ports

WAN ports

5.3.2

WAN port User Screens and Settings

Cross-Connect (XCON)
For looking at DS0 utilization on a per WAN port basis, the xcon option is included. Simply
place your cursor on a WAN port of your choosing, and hit the ‘x’ key. A figure similar to
Figure 5-5 will appear.

Figure 5-5.WAN Cross-Connect Per Port
The WAN xcon screen allows the crafts person to quickly see where the connections are on
each of the four WAN ports. For naming changes, and editing connections, the Cross-Connect
(Xcon) command in the Main screen level allows you to view and add the time slot or DS0
assignments that have been set up in the system. This screen offers a centralized place for
managing the cross-connects on the IMACS-200. From the main IMACS-200 screen, press
‘X’ for the Xcon option. This screen will display to the user all the of the WAN to WAN
cross-connections that have been made on the IMACS-200. New connections can be added by
selecting the Add function as shown in Figure 5-6, and using the arrow keys to select and
update the various fields. To see all of the connections made on the IMACS-200, the user can
type ‘V’ for ‘View All”. A display such as is shown in Figure 5-7 will appear. This screen can
also be used to initiate changes in the WAN to WAN cross-connects, as well as changing the
names of Voice circuits. Time slot and cross-connect configuration are discussed in the System
Operations chapter of this manual.

WAN Ports

5-7

Running
WAN
portHead
User Screens and Settings

Model
WAN
portsNo.

Figure 5-6.Adding a WAN to WAN Cross-connect

Figure 5-7.T1 Cross-Connect Screen (display only)

5-8

WAN Ports

WAN ports

5.3.3

WAN port User Screens and Settings

Performance Data
All WAN ports gather performance data. The performance data for a T1 line is viewed by
typing “p” in the WAN port Main Screen, to invoke the Perf command. Performance data is
accumulated for 15-minute increments that include the current period and the previous 96
periods (24 hours), which are accessed via the pgUp and pgDn commands of the Main Screen.
Performance data can be viewed for each WAN port by moving to that port and then selecting
the “p” option.
In an T1 environment, an error is defined as any CRC-4 error, Controlled Slip, or OOF error.
Figure 5-8 shows a typical T1 Performance Data Screen. The performance statistics are
gathered and displayed in 15-minute intervals. Lines in each of the columns represent periods
when no seconds have accumulated.
In the AT&T mode, two sets of registers accumulate performance data for 4 WAN links. The
user registers and network registers are driven by the same errored events. However, they can
be cleared separately. You can view both the user and network registers, but you can only clear
the user registers. The network only has access to the network registers, and can only clear
those registers. The ANSI and T1 WAN links have only one set of registers.

Figure 5-8.Typical Performance Data Screen
Table 6-3 lists the actions available from the Performance Data Screen.

Table 5-3. Performance Data Screen Actions
Action
Refresh
pgUp
pgDn

WAN Ports

Function
Because statistics are not calculated in real time, the Refresh command
must be used to update the screen with new information.
Pages through the performance statistics for the current 15 minute period
and periods 96-1.
Pages through the performance statistics for the current 15 minute period
and periods 1-96.

5-9

Running
WAN
portHead
User Screens and Settings

uSerregs
Networkregs

Clearregs
Main

Model
WAN
portsNo.

Allows you to view the User Registers. Not shown for T1 operations
because it is the only set of registers for that mode.
Allows you to view the Network Registers. When you are viewing the
network registers, the Clear Registers option disappears. (This action is
not available in D4 mode or T1 operations.)
Clears the User Registers. Network statistics remain the same.
Returns to the WAN port Main Screen.

ES
An Errored Second (ES) is a second with one or more CRC-6 (ESF), or CRC-4 (T1) errors,
one or more Out-Of-Frame (OOF) errors, or one or more Controlled Slips.

UAS
An Unavailable Second (UAS) is any second during which service is unavailable. An
unavailable signal state is declared after ten consecutive Severely Errored Seconds (SESs) are
logged. An unavailable state is cleared after ten consecutive non-Severely Errored Seconds
are logged. Unavailable Seconds are also accumulated if the port has an out-of-service (OOS)
condition.

SES
A Severely Errored Second (SES) is any second with 320 or more CRC-6 (T1 ESF), or CRC-4
(T1) errors. Or, an SES can be any second with one or more Out-Of-Frame (OOF) errors.

BES
A Bursty Errored Second (BES) is any second with more than one and fewer than 320 CRC-6
(ESF), or CRC-4 (T1) errors.

LOFC
The Loss of Frame Count (LOFC) is the number of times a Loss Of Frame (LOF) is declared.
An LOF is declared after 2.5 seconds of a continuous Loss Of Synchronization (LOS) or
Out-Of-Frame (OOF) condition. The LOF is cleared after no more than 15 consecutive
seconds without another LOS or OOF.

SLIP
A Slipped Second is any second that contains one or more Controlled Slips. A Controlled Slip
is the deletion or replication of a T1 frame by the receiving equipment.

5-10

WAN Ports

WAN ports

WAN port User Screens and Settings

DM
A Degraded Minute (DM) is any minute during the reporting period that has an error rate
greater than 10-6 as described in ITU-T G.821. The count for this field is from 1 to 15, rather
than 1 to 900 for the other fields.

STATUS
If one of the described errors occurs during any of the 15-minute intervals, the status column
for that period would display the code for that error. The codes are displayed at the bottom of
the screen. The values are Y (Yellow Alarm received), N (No Signal), T (Test Mode - line
loopback, local loopback, payload loopback, or standby), L (Loss of Synchronization – 2 out
of 4 frame bits in error), B (Bipolar Violation), and E (Excessive Error Rate).

WAN Ports

5-11

Model
WAN
portsNo.

Running
WAN
portHead
User Screens and Settings

5.3.4

Far-End Performance Data
The Far-End Performance Data Screen is similar to the Performance Data Screen. NOTE:
Only ANSI T1.403 mode is supported by the IMACS-200 for this feature. This option is not
available in E1 mode. The same statistics are collected in a slightly different manner. Figure
5-9 shows a typical display of far-end network register data for ANSI T1.403 mode. To view
the far-end performance data, press “f” (Farstat command) in the WAN port Main Screen.
When Farstat is selected, the far end generates one-second performance reports and sends
them to the local system, where they are then stored.The message at the bottom of the screen
shown in Figure 5-9 refreshes once per second as this data is gathered.

Figure 5-9.Far-End Performance Data Screen

Note:

Asterisks (*) are displayed when performance data is unavailable.

Press “c” (Clear command) from the bottom line of this screen to send a FDL message to the
far end and also clear the local display. The following message will now appear:
“Ok to clear performance (y/n)?”
Press “y” to clear the statistics, or “n” to leave the screen contents intact. To view the far-end
information again, press “r” (restore) to send an FDL message and refresh the screen. Table
6-4 lists the actions available from the above screen.

Table 5-4. Far-End Performance Data Screen Actions
Action
Refresh

5-12

Function
Because data is not calculated in real time, the Refresh command must be
used to update the screen with new information.

WAN Ports

WAN ports

Clear
PgUp
PgDn
Main

WAN port User Screens and Settings

Clears the Far-End Network Registers display on the local terminal.
Pages through the performance statistics for the current 15-minute period
and periods 96-1.
Pages through the performance statistics for the current 15-minute period
and periods 1-96.
Returns to the WAN port Main Screen.

ES
An Errored Second (ES) is a second with one or more CRC-6 (ESF) or BPV (D4/D-Frame)
errors, one or more OOFs, or one or more Controlled Slips.

SES
A Severely Errored Second (SES) is any second with 320 or more CRC-6 (ESF) or BPV
(D4/D-Frame) errors, or one or more OOF errors.

BES
A Bursty Errored Second (BES) is any second with more than one and fewer than 320 CRC-6
(ESF) or BPV (D4/D-Frame) errors.

FE
The Framing Error (FE) is incremented whenever an incorrect or unexpected framing bit is
received in a one second window.

SLIP
A Slipped Second is any second containing one or more Controlled Slips. A Controlled Slip
is the deletion or replication of a DS1 frame by the receiving equipment.

WAN Ports

5-13

Model
WAN
portsNo.

Running
WAN
portHead
User Screens and Settings

5.3.5

Test Screen
Pressing “t” (Test command) in the WAN port Main Screen brings up the screen shown in
Figure 5-10. From this screen, you can create test situations between WAN ports or between
a single WAN port and data test equipment at a remote site. Table 6-5 lists the actions you can
perform from the bottom line of this screen. Table 6-6 lists the settings controlled on this
screen along with their possible values.

Figure 5-10.Typical WAN port Test Screen
Table 5-5. Test Screen Actions
Action
Save
Undo
Refresh
Insert Err
Clear
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Allows you to manually insert a single bit error into the data signal. This does
not cause a CRC error.
Clears the Test Screen and resets all counters to zero.
Returns to the WAN port Main Screen. If changes are made to settings and not
saved, you will be prompted to save or abandon those changes.

Table 5-6. WAN port Test Screen Options
Parameter
BERT
SYNC
BE
ES
SES
CSES

5-14

User Options
off mark space 1:1 1:7 3:24 qrss
prb11 prb15 prb20
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options

Notes

Default

off

WAN Ports

WAN ports

OSS
BER
ELAP

WAN port User Screens and Settings

information only–no user options
information only–no user options
information only–no user options

BERT
The Bit Error Rate Tester (BERT) sends a data pattern and measures the bit error rate (BER)
on the selected WAN port. The patterns that can be selected are off, mark (all ones), space
(all zeros), 1:1 (0101), 1:7 (0100 0000), 3:24 (this pattern requires 3 bytes to display), qrss
(quasi-random signal source), prb11 (pseudorandom binary sequence), prb15, and prb20.

SYNC
The Synchronization (SYNC) field tells you if the integrated BERT has achieved
synchronization either with itself via a remote loopback or with the remote test equipment.
Since this is an information-only field, there are no user-selectable parameters.

BE
The Bit Error (BE) field shows the total number of bit errors logged. Since this is an
information-only field, there are no user-selectable parameters.

ES
The Errored Seconds (ES) field shows the total number of seconds in which any errors were
detected. Since this is an information-only field, there are no user-selectable parameters.

SES
The Severely Errored Seconds (SES) field shows the total number of seconds in which the bit
error rate exceeded one bit per thousand (1 x 10-3). Since this is an information-only field,
there are no user-selectable parameters.

CSES
The Consecutive Severely Errored Seconds (CSES) field is triggered by the occurrence of ten
consecutive Severely Errored Seconds. Once triggered, the CSES field will increment (by
one) for each elapsed second until the system logs ten consecutive non-Severely Errored
Seconds. Since this is an information-only field, there are no user-selectable parameters.

WAN Ports

5-15

Running
WAN
portHead
User Screens and Settings

Model
WAN
portsNo.

OSS
The Out of Synchronization Seconds (OSS) field shows the number of seconds that the WAN
BERT has been out of synchronization. Since this is an information-only field, there are no
user-selectable parameters.

BER
The Bit Error Rate (BER) field shows the rate at which errors are being logged. The system
calculates BER by dividing the number of bit errors (BE) by the total number of bits
transmitted during the test. Since this is an information-only field, there are no user-selectable
parameters.

ELAP
The Elapsed time setting shows the running tally of the total number of seconds during the
test. Since this is an information-only field, there are no user-selectable parameters.

5-16

WAN Ports

WAN ports

5.4

WAN port Error Messages

WAN port Error Messages
Refer to Appendix B in this Guide for further information on Error Messages regarding this
port.

5.5

WAN port Troubleshooting
The WAN port may be faulty if a CGA-Red alarm is in progress on either port of the port. This
alarm occurs if the incoming network signal is lost, or if the WAN port is out of frame with
that signal. To isolate the trouble, proceed as follows:
1. See if similar alarms are also present on any other T1 or E1 lines and WAN ports in the
system. If so, the trouble may be with the Interface port, which connects the T1 or E1
signals from the WAN ports to the external network. If the trouble is only on one T1 or
E1 line connected to the WAN port, continue with step 2.
2. Perform a local T1 or E1 signal loopback toward the CPE, and see if the CGA alarm
clears after about 10 to 30 seconds. If it does, the WAN port is good; go to step 3.
Otherwise, go to step 4.
3. Check the local network equipment receiver, cabling to the Interface port at the local
system, and the far-end system or network transmitter.
4. Move the WAN port with another WAN port., for example wan-1 to wan-3.
5. If the WAN port is determined to be faulty, return the faulty unit for repair to the
location specified by your distributor.

WAN Ports

5-17

Running
WAN
portHead
Troubleshooting

5-18

Model
WAN
portsNo.

WAN Ports

Chapter 6
FXS Ports
6.1

Introduction
This chapter provides connector pinout, configuration, and troubleshooting information for
the Foreign Exchange - Station (FXS) Voice port. This port is labeled Voice. See Appendix C
for pinouts of this connector.
This port manages the flow of FXS voice traffic over the network. Each port encodes analog
(voice, VF) signals to a digital bitstream at the local system for transmission over a T1
network. It also decodes the digital signals to analog at the remote system.
Each of the four FXS ports have two-wire interfaces that support FXS and PLAR. FXS allows
users to connect the system to a two-way (both inbound and outbound calls) PBX trunk or a
key system trunk. All the ports are pre-set to use the loop-start function with POTS stations
and simple PBX trunks.

6.2

FXS Descriptions

6.2.1

IMACS-200-FXS Description
The IMACS-200-FXS port has four ports and provides a 600-ohm terminating impedance on
each port. All FXS features are supported by the IMACS-200.

6.3

FXS User Screens and Settings

6.3.1

FXS Main Screen
You must configure the FXS ports for operation. This is done from the FXS Main Screen (see
Figure 6-1). To go to that screen, highlight the desired port in the System Main Screen and
press . This screen shows one configuration column for each port on the IMACS-200.

FXS Ports

6-1

Model No.

Running Head

Figure 6-1. Typical FXS port Main Screen
The bottom highlighted line of this screen shows various actions that you can perform from
this screen. You perform the desired action by pressing the associated uppercase letter key.
Table 6-1 summarizes these actions. For example, after you configure the FXS port ports,
press “s” to save your settings.

Action
Save
Undo
Refresh
Copy

Test
taBs
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields
that are not automatically updated (i.e., test status).
Copies the contents of the current column to the
next column. Useful if you change a lot of entries
in one column and wants to repeat those changes
in subsequent columns.
Access is given to the test screen
Index into the signaling conversion screen.
Returns to the System Main Screen. If you make
changes to settings and do not save them, you will
be prompted to save or lose changes.

Table 6-1. Main Screen Option Settings and Defaults

6-2

FXS Ports

Table 6-2summarizes the configuration settings for the FXS ports, along with the available
and factory-default option settings. The parameters and settings are also described in the
following paragraphs.
Parameter
STATE
WAN/SRV

User Options
stdby actv
none wan-1 wan-2 wan-3
owan-2 owan-3 owan-4
01-24 or 01-31
fxs plar
-9.0 dB to +3.0 dB
-9.0 dB to +6.5 dB
u-law a-inv
off dgtl anlg
none D-mW
n/a on off

TS
MODE
Rx TLP
Tx TLP
CODING
LB
PATTERN
SIG CONV

wan-4

Notes

Default
stdby
none

owan-1

01
fxs
-2.0
2.0
u-law
off
none
off

Table 6-2. Main Screen Option Settings and Defaults
Notes:
1. All four ports must be set to either u-law or a-inv.
2. When a WAN or SRV port has not been selected, the default for Signal Conversion is
n/a. Once a port has been chosen then the default is off.

STATE
The State setting determines whether the port is active or inactive. An inactive port does not
occupy a time slot on a WAN link. Set the State setting to stdby (standby) for ports that are
not to be used or that have not yet been configured. Set it to actv (active) for ports that are
ready for use.

WAN
The WAN setting identifies the WAN or OWAN link assigned to this port. When choosing the
type of wan, you must also select the desired port of the WAN or OWAN port for transmission
over the T1 or E1 link.
It is not necessary to assign all FXS ports to the same WAN or OWAN link, nor to contiguous
time slots on a WAN or OWAN link.

FXS Ports

6-3

Model No.

Running Head

TS
The TS setting identifies the time slot on the WAN link to which this port is assigned. Values
range from 1 to 24 for T1 links, and 01 to 31 for E1 links. For a display of the available time
slots, refer to the cross-connect map for the WAN link; see Chapter 4, System Configuration
and Operation in the System Reference Guide for information about viewing cross-connect
maps.

CAUTION!
Before activating this port, verify the behavior expected by both the station equipment and
remote central office equipment, and be sure the systems are properly configured.

MODE
The Mode setting should be determined by the type of equipment to which the user is
connecting the port. Currently the only allowable option uses two-wire balanced connections.
The fxs (Foreign Exchange Station) option allows users to connect the system to a two-way
(both inbound and outbound calls) PBX trunk or a key system trunk. The system requires a
ringing generator for this option.
The plar (private line automatic ringdown) option provides point-to-point unswitched
connections between two telephone sets. This configuration is usually not attached to an
exchange or switch; rather it provides a “hot line” between two locations. The IMACS-200
only supports d4-m2 version of plar, where the receiver generates ring cadence, offhook = 0
and onhook = f.

Rx TLP
The Receive Transmission Level Point (TLP) setting controls the amount of gain or loss added
to the incoming signal after it is decoded to analog. To increase the signal level, set the Rx TLP
setting to a positive value (i.e., the larger the number, the more gain is added). To decrease the
signal level, set the Rx TLP setting to a negative value (i.e., the more negative the number, the
more the signal level is decreased). For example, an incoming signal at -5 dBm can be
increased to -3 dBm by setting Rx TLP to +2 dB. The Rx TLP range is -9.0 dB to +3.0 dB.

Tx TLP
The Transmit TLP setting controls the amount of gain or loss added to a voice signal from the
CPE before it is encoded to digital PCM. To increase the signal level, set the Tx TLP setting
to a negative value (i.e., the more negative the number, the more gain is added). To decrease

6-4

FXS Ports

the signal level, set the Tx TLP setting to a positive value (i.e., the more positive the number,
the more the signal level is decreased). For example, an incoming signal at -5 dBm can be
increased to -2 dBm by setting the Tx TLP to -3 dB. The Tx TLP range is -6.5 dB to +9.0 dB.

CODING
The Coding field sets the PCM companding (coding) method used for a port. Changing the
coding field will apply the coding type selected to all four ports. Generally, the North
American T1 environment uses u-law (mu-law) coding, and the European E1 envisonment
uses a-inv. The coding default setting is defined by the type of associated WAN or OWAN
port.

LB
The Loopback field lets you loop the port back toward the network and far end. The dgtl
(digital) loopback sends the incoming digital DS0 signal back to the far end without decoding
it. The anlg (analog) loopback sends the decoded analog signal back to the far end after
decoding and then re-encoding it. Figure 6-2 shows the loopback options, which allow you to
test and troubleshoot the FXS port. To disable a loopback, set this field to off.

Figure 6-2. FXS port Loopbacks

FXS Ports

6-5

Model No.

Running Head

PATTRN
The Pattern field selects an outgoing test pattern for the current port. The test pattern is
generated by the system and sent to the selected port. You can select a different pattern for
each port. The none option disables the test pattern. The D-mW (Digital milliwatt) option
sends a 1 kHz tone at 0.0 dBm. The setting of the Rx TLP setting affects the D-mW signal
level.

SIG CONV
The Signaling Conversion parameter allows you to change the transmit ABCD signaling bits
from CCITT (E1) to ANSI (T1) standards, and is accessd by selecting B from the taBs option
at the bottom of the window.
The options are off if ANSI signaling is used and on to convert transmit signaling from ANSI
to CCITT format according to the Interface Card Conversion Table for FXS signaling. This
setting also converts receive signaling from CCITT to ANSI. To see the options currently
deployed on a port, Figure 6-3 shows the default settings for the conversion table. This table
will be commonly used by all ports to which the this option is set to on.
The C->A column describes conversion done in the downstream direction towards the
subscriber loop, while the A->C column describes the conversion done in the upstream
direction, normally towards the T1 interface.

Figure 6-3.TABs Signal Conversion

6-6

FXS Ports

6.3.2

Test Screen
The Test option facilitates testing and maintenance by allowing you to monitor and set the
status of the analog interface leads, and to monitor or set the value of the A, B, C, and D
signaling bits of all FXS circuits on that port. In cross-connect systems, the test option also
allows you to apply test patterns and tones towards the user and network sides of the system.
Figure 6-4 shows the FXS port Test Screen parameters,Table 6-3 lists some actions you can
perform from this screen, and Table 6-4 shows the settings for each parameter.

Figure 6-4. Typical FXS port Test Screen
Note:

The above screen shows the ABCD bits as sent by the Tx and Rx sides. The “c”
indicated on ports 3 and 4 indicate that the bits displayed will then be run through the
TABS conversion table as seen in Figure 6-3.

Table 6-3. Test Screen Actions
Action
Save
Undo
Refresh
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e. performance and test data).
Returns to the FXS port Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

Table 6-4. Test Screen Option Settings and Defaults
Parameter
TEST
Tx ABCD

FXS Ports

User Options
off on
mon set

Default
off
mon

6-7

Model No.

Running Head

Rx ABCD
TO USER
TO NTWK

mon set
none D-mW
none D-mW

mon
none
none

Tx ABCD
Rx ABCD
MODE
TYPE
STATUS

Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable

n/a
n/a
n/a
n/a
n/a

TEST
The Test parameter shows if the port is in test mode or not. Inactive ports and ports that are
assigned to inactive WANs will show a test status of n/a. The test status options for active
ports are off and on.

Tx ABCD
The Transmit ABCD setting allows the user to either monitor the status of the ABCD signaling
bits being transmitted towards the network or set a specific ABCD pattern for testing the
transmit side of the circuit. The options for this field are mon (monitor) or set. Choosing set
will bring up a four digit field for users to input the ABCD pattern they want to transmit. Any
four-digit combination of ones and zeros is acceptable for this setting.

Rx ABCD
The Receive ABCD setting allows the user to either monitor the status of the ABCD signaling
bits being received from the network or set a specific ABCD pattern for testing the receive
side of the circuit. The options for this field are mon (monitor) or set. Choosing set will bring
up a four digit field for users to input the ABCD pattern they want to receive. Any four digit
combination of ones and zeros is acceptable.

TO USER
In cross-connect systems only, the To User parameter allows you to break the circuit and send
a test tone on the user side of the system. The options for this field are none, and D-mW.
Choose none if you do not want to inject a tone toward the CPE. In this case, the PCM signal
received from the network is still sent to the CPE in the normal manner.

6-8

FXS Ports

TO NTWK
In cross-connect systems only, the To Network parameter allows you to break the circuit and
send a test tone on the network side of the system. The options for this field are none, and
D-mW. Choose none if you do not want to inject a tone toward the network. In this case, the
PCM signal received from the CPE is still sent to the network in the normal manner.

Tx ABCD
The Transmit ABCD informational field shows the current values of the ABCD bits that are
being transmitted to the network. If TX ABCD in the top half of the screen is changed via the
set function mentioned above, and the settings are saved by the Save command in the Menu
of Actions, the new bit pattern chosen will be reflected here.

Rx ABCD
The Receive ABCD informational field shows the current values of the ABCD signaling bits
that are received from the network. If RX ABCD in the top half of the screen is changed via
the set function mentioned above, and the settings are saved by the Save command in the
Menu of Actions, the new bit pattern chosen will be reflected here.

MODE
The Mode informational field shows the current mode of the port that was selected on the main
FXS port Screen. Valid settings are fxs.

TYPE
The Type informational field shows the current status of the signal field selected on the main
FXS port screen for this port. Valid settings for fxs and wink modes is loop (loop start).

STATUS
The Status field shows the current status of the port. Table 6-5 lists and describes all of the
possible conditions reported by this field.

Table 6-5. Status Information Field Settings
Setting
stdby
W stb
W tst
W OOS

FXS Ports

Meaning
The FXS port is in standby.
WAN port to which the FXS port is assigned is in standby.
WAN port to which the FXS port is assigned is under test.
WAN port to which the FXS port is assigned is out of service.

6-9

Model No.

Running Head

noWAN
call
busy
idle
TC
test
maint

6-10

There is no WAN port configured in the slot to which the FXS port is
assigned.
Call set-up is in progress.
Call is in progress.
No call is in progress (port is available for a call).
The port is in Trunk Conditioning because a CGA alarm occurred on the
associated WAN port.
A test is in progress on the port (i.e., you are actively controlling the circuit
by setting values for Tx ABCD or Rx ABCD).
The port is in a maintenance condition.

FXS Ports

6.4

FXS Error Messages
Refer to Appendix B in the System Reference Guide for further information on Error
Messages regarding this port.

6.5

FXS port Troubleshooting
The FXS port may be faulty if a voice signal is not received at one end of a circuit, or if
signaling is not detected. The following are possible causes:
•

Faulty receiving CPE at the near end (where the problem was first noticed)

•

Faulty transmitting CPE at the far (opposite) end

•

Faulty cabling between the CPE and FXS port at the near end

•

Faulty cabling between the CPE and FXS or FXO port at the far end

•

T1 network failure

•

Improper port configuration at either end (e.g., time slot and/or WAN port assignments)

First, verify that the T1 network has not failed. Check for a CGA-Red alarm on the associated
WAN port at the end where the incoming VF signal loss is first noticed. The CGA indicates
that the incoming network signal was lost (or that the receiving WAN port is out of frame).
During the CGA, all voice ports with time slots on that WAN port will also be disabled, and
the associated far-end WAN port will be in a CGA-Yellow alarm state. If the network is faulty,
you must clear that trouble to restore your circuits.
If the network is okay, verify that the proper WAN ports and time slots are assigned to the
associated FXS and FXO voice ports at both ends, as previously outlined in this chapter. In a
point-to-point network, the near-end and far-end FX port ports should both be assigned the
same WAN port and time slot number. Also make sure the other parameters (such as the
transmit and receive TLPs) are set properly at both ends.
If the FX port parameters are correct at both ends, and if the network is okay, the trouble is
isolated to the FXS port or the associated port. Proceed as follows:
1. At the far end, activate an analog loopback on the FX port.
2. Send a 0 dBm (digital milliwatt) test signal toward the CPE at that end. That signal will
be substituted for the normal signal coming from the far-end CPE; it will be sent back to
the CPE at your end via the loopback path.
3. Check your CPE for this signal. If it is present, the far-end CPE or cabling to the far-end
FX port is probably faulty. Disable the loopback and test signal there, and fix the problem.
If you still don’t receive a signal, go to step 4.

FXS Ports

6-11

Running Head

Model No.

4. At your end, go to the FXS port Main Screen and send a digital milliwatt test tone (0
dBm) toward the CPE. If you still don’t receive a signal, check the cabling from the FXS
port to your CPE, and check the CPE itself. If those items are okay, replace the FXS port
at your end.
5. If the FXS port is determined to be faulty, replace it and return the faulty unit for repair
to the location specified by your distributor.

6-12

FXS Ports

Chapter 7
E&M Ports
7.1

Introduction
This chapter provides information regarding the configuration and troubleshooting for the
E&M Voice Circuits.
The E&M ports manage the flow of toll-grade voice traffic through the IMACS-200 system.
Each port encodes an analog (voice, VF) signal to a digital bitstream at the local integrated
access system for transmission over a T1 network. Each port also decodes the digital signal to
analog at the remote system. The E&M ports support Transmit Only (TO) and Type I, Type
II, Type IV and Type V signaling.
Each port connects to a CPE voice circuits from a PBX or other user facility.

7.2

E&M Description

7.2.1

IMACS-200 E&M Description
The IMACS-200 E&M ports provide an extended transmit TLP range (-16.3dB to + 7.5) for
dedicated 4-wire modem applications. This range is required for data speeds of 19.2 kbps and
higher.
The IMACS-200 supports signalling on the E&M ports. Supported signaling types are Type
I, Type II, Type IV and Type V and are discussed on the following pages.

E&M Ports

7-1

Model No.

Running Head

Type I signalling is achieved by connecting a ground on the SG lead. Type I E&M signalling
is then achieved by operating the E and M leads to achieve off-hook and on-hook
signals.Figure 7-1 illustrates a typical Type I interface.

Figure 7-1.Type I E&M Signaling
Note:

7-2

For Type I signaling, there should be no connection on the SB lead

E&M Ports

Figure 7-2 illustrates a Type II E&M signaling interface where the connecting equipment
(normally a PBX or other inter-office carrier systems) originates on the M-lead. The
connecting equipment provides a contact closure between the M and SB leads at the interface
to send an 0ff-hook (originate) and an open between the M and SB leads at the interface to
send an on-hook. The IMACS-200 provides a contact closure between the E and SG leads at
the interface to send on off-hook to the connecting equipment and an open between the E and
SG leads to send an on-hook

Figure 7-2.Type II E&M Signaling

E&M Ports

7-3

Model No.

Running Head

Type IV E&M is arranged exactly like Type II E&M, except that a mechanical relay is used
for the M relay as in Type I E&M, see Figure 7-3.

Figure 7-3.Type IV E&M Signaling

7-4

E&M Ports

Type V is symmetrical and allows two signaling nodes to be connected back-to-back, as
illustrated in Figure 7-4. This is the most common interface type used outside of North
America. Type V uses two leads for supervisor signaling: E, and M. During inactivity the
E-lead and M-lead are open. The PBX (that acts as trunk circuit side) connects the M-lead to
the ground in order to indicate the off-hook condition. The IMACS-200 (signaling unit)
connects the E-lead to the ground in order to indicate off-hook condition.

Figure 7-4.Type V E&M Signaling

E&M Ports

7-5

Model No.

Running Head

7.3

E&M port User Screens and Settings

7.3.1

E&M port Main Screen
You must configure the E&M port for operation after installing it in the system chassis. This
is done from the E&M Main port Screen, which is shown in Figure 7-5. To go to that screen,
highlight the desired port on the System Main Screen, then press . The E&M port
Main Screen shows four columns of settings, one for each of the E&M ports.

Figure 7-5.Typical E&M port Main Screen
The bottom highlighted line of this screen shows various actions that you can perform from
this screen. You perform the desired action by pressing the associated uppercase letter key.
Table 7-1 on page 7 summarizes these actions. For example, after you configure the E&M port
ports, press “s” to save your settings.

7-6

E&M Ports

Table 7-1. Main Screen Actions

Action
Save
Undo
Refresh
Copy

Test
taBs
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., test status).
Copies the contents of the current column to the next column. Useful if you
change a lot of entries in one column and wants to repeat those changes in
subsequent columns.
Access is given to the test screen
Index into the signaling conversion screen.
Returns to the System Main Screen. If you make changes to settings and do
not save them, you will be prompted to save or lose changes.

Table 7-2, “Main Screen Option Settings and Defaults,” on page 7-7 summarizes the
configuration settings for the E&M port, along with the available and factory-default option
settings. The parameters and settings are also described in the following paragraphs.

Table 7-2. Main Screen Option Settings and Defaults

Parameter
STATE
WAN/SRV

User Options
stdby actv
none wan-1 wan-2 wan-3 wan-4
owan-3 owan-4
01-24 or 01-31
to e&m I e&m II e&m IV e&m V
-16.3 dB to +7.5 dB
-16.3 dB to +7.5 dB
u-law a-inv
off dgtl anlg
none D-mW
n/a off on

TS
MODE
Rx TLP
Tx TLP
CODING
LB
PATTRN
SIG CONV

Notes

Default
stdby
none

owan-1 owan-2

01
to
0
0
u-law
off
none
off

Notes:
1. The extended setting range for the IMACS-200 E&M port is from -16.3 to +7.5 dB.
2. When a WAN or SRV port has not been selected, or when the mode it to, the default
for Signal Conversion is n/a. When the mode has been selected to be e&m, then the
default is off.

E&M Ports

7-7

Running Head

Model No.

STATE
The State setting determines whether the port is active or inactive. An inactive port does not
occupy a time slot on a WAN link. Set this field to stdby (standby) for ports that will not be
used or that are not yet configured. Or, set it to actv (active) for ports that are ready for use.

WAN
The WAN setting identifies the WAN or OWAN link assigned to this port. When choosing the
type of wan, you must also select the desired port of the WAN or OWAN port for transmission
over the T1 or E1 link.
It is not necessary to assign all E&M ports to the same WAN or OWAN link, nor to contiguous
time slots on a WAN or OWAN link.

MODE
The Mode setting specifies whether or not a port uses E&M signaling, or if it operates in the
Transmission-Only (TO) mode. Use the to mode if you are connecting the port to a four-wire,
dedicated-line modem that does not require E&M signaling. Use e&m I, e&m II, e&m IV or
e&m V, depending on the type of e&m signaling desired. When choosing an E&M signaling
mode, all ports using E&M must use the same mode.

Rx TLP
The Receive Transmission Level Point (TLP) setting controls the amount of gain or loss added
to a signal after it is decoded to analog. To increase the signal level, set the Rx TLP field to a
positive number (i.e., the larger the number, the more gain is added). To decrease the signal
level, set the Rx TLP field to a negative number (i.e., the more negative the number, the more
the signal level is decreased). For example, an incoming signal at -5 dBm can be increased to
-2 dBm by setting Rx TLP to +3 dB. The Rx TLP range is -16.3 dB to +7.5 dB.

7-8

E&M Ports

Tx TLP
The Transmit TLP setting controls the amount of gain or loss added to the voice signal coming
in from the local CPE before it is encoded to digital PCM. To increase the incoming signal
level, set the Tx TLP field to a negative value (i.e., the more negative the number, the more
gain is added). To decrease the signal level, set the Tx TLP setting to a positive number (i.e.,
the more positive the number, the more the signal level is decreased). For example, an
incoming signal at -16 dBm can be increased to 0 dBm by setting Tx TLP to -16 dB. For the
IMACS-200 E&M ports, this range is-16.5 dB to +7.5 dB.

LB
The LB setting allows you to loop a port back toward the network and far end for testing and
troubleshooting. Figure 7-6 shows the available loopbacks. The dgtl (digital) loopback sends
the incoming digital signal from the network back toward the far end, without decoding it. The
anlg (analog) loopback sends the decoded analog signal back to the far end. To disable either
loopback after testing, set this field to off.

Figure 7-6. E&M port Loopbacks

E&M Ports

7-9

Model No.

Running Head

PATTRN
The Pattern is the outgoing test pattern to be sent to the selected port by the system. You can
send a different pattern to each port. The none setting disables the test pattern. The D-mW
(Digital milliwatt) option sends a 1 kHz tone at 0.0 dBm. The setting of the Rx TLP field
adjusts the D-mW signal level before sending the signal to the CPE.

SIG CONV
The Signaling Conversion parameter allows you to change the transmit ABCD signaling bits
from CCITT (E1) to ANSI (T1) standards, and is accessd by selecting B from the taBs option
at the bottom of the window.
The options are off if ANSI signaling is used and on to convert transmit signaling from ANSI
to CCITT format according to the Interface Card Conversion Table for E&M signaling. This
setting also converts receive signaling from CCITT to ANSI. To see the options currently
deployed on a port, Figure 7-7 shows the default settings for the conversion table. This table
will be commonly used by all ports to which the this option is set to on.
The C->A column describes conversion done in the downstream direction towards the
subscriber loop, while the A->C column describes the conversion done in the upstream
direction, normally towards the T1 interface.

Figure 7-7.Tabs Signal Conversion - Change Mode

7-10

E&M Ports

7.3.2

Test Screen
The Test option facilitates testing and maintenance by allowing you to monitor and set the
status of the analog interface leads, and to monitor or set the value of the A, B, C, and D
signaling bits of all E&M circuits on that port. In cross-connect systems, the test option also
allows you to apply test patterns and tones towards the user and network sides of the system.
Figure 7-8 shows the E&M port Test Screen parameters,Table 7-3 lists some actions you can
perform from this screen, and Table 7-4 shows the settings for each parameter.

Figure 7-8. Typical E&M port Test Screen
Note:

Table 7-3. Test Screen Actions
Action
Save
Undo
Refresh
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e. performance and test data).
Returns to the E&M port Main Screen. If changes are made to settings and
not saved, you will be prompted to save or lose changes.

Table 7-4. Test Screen Option Settings and Defaults
Parameter
TEST
Tx ABCD

E&M Ports

User Options
off on
mon set

Default
off
mon

7-11

Model No.

Running Head

Rx ABCD
E-Lead
TO USER
TO NTWK

mon set
mon
none D-mW
none D-mW

mon
mon
none
none

Tx ABCD
Rx ABCD
E-lead
M-lead
MODE
TYPE
STATUS

Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable
Status information only; not editable

n/a
n/a

n/a
n/a
n/a

E-lead
The E-lead setting allows the user to either monitor or set the state of the E-lead. The options
for this field are mon (monitor) or set. Choosing set will bring up the options on (which raises
the E-lead), or off (which drops the E-lead.

7-12

E&M Ports

E-lead
The E-lead information field is a display-only field that reflects the status of the E-lead.

Valid values are on and off.

M-lead
The M-lead information field is a display-only field that reflects the status of the

M-lead. Valid values are on and off.

MODE
The Mode informational field shows the current mode of the port that was selected on the main
E&M port Screen. Valid settings are E&M.

E&M Ports

7-13

Model No.

Running Head

TYPE
The Type informational field shows the current status of the signal field selected on the main
E&M port screen for this port. Valid settings for E&M and wink modes is loop (loop start).

STATUS
The Status field shows the current status of the port. Table 7-5 lists and describes all of the
possible conditions reported by this field.

Table 7-5. Status Information Field Settings
Setting
stdby
W stb
W tst
W OOS
noWAN
call
busy
idle
TC
test
maint

7-14

Meaning
The E&M port is in standby.
WAN port to which the E&M port is assigned is in standby.
WAN port to which the E&M port is assigned is under test.
WAN port to which the E&M port is assigned is out of service.
There is no WAN port configured in the slot to which the E&M port is
assigned.
Call set-up is in progress.
Call is in progress.
No call is in progress (port is available for a call).
The port is in Trunk Conditioning because a CGA alarm occurred on the
associated WAN port.
A test is in progress on the port (i.e., you are actively controlling the circuit
by setting values for Tx ABCD or Rx ABCD).
The port is in a maintenance condition.

E&M Ports

7.4

E&M port Error Messages
Refer to Appendix B in the System Reference Guide for further information on Error
Messages regarding this port.

7.4.1

E&M port Troubleshooting
The E&M port may be faulty if a voice signal is not received at one end of a circuit, or if E&M
signaling is not detected. The following are possible causes:
•

Faulty receiving CPE at the near end (where the problem was first noticed)

•

Faulty transmitting CPE at the far (opposite) end

•

Faulty cabling between the CPE and E&M port at either end

•

Faulty E&M port at either end

•

T1 network failure

•

Improper port configuration at either end (e.g., time slot and/or WAN assignments)

First, verify that the T1 network has not failed. Check for a CGA-Red alarm on the associated
WAN port at the end where the incoming VF signal loss is first noticed. The CGA indicates
that the incoming network signal was lost (or that the receiving WAN port is out of frame).
During the CGA, all voice ports with time slots on that WAN port will also be disabled, and
the associated far-end WAN port will be in a CGA-Yellow alarm state. If the network is faulty,
you must clear that trouble to restore your circuits.
If the network is okay, verify that the proper WAN ports and time slots are assigned to the
associated E&M voice ports at both ends, as previously outlined in this chapter. In a
point-to-point network, the near-end and far-end E&M ports should both be assigned the same
WAN port and time slot number. Also make sure the other parameters (such as the transmit
and receive TLPs) are set properly at both ends.
If the E&M port parameters are correct at both ends, and if the network is okay, the trouble is
isolated to the E&M port or the associated port. Proceed as follows:
1. At the far end, activate an analog loopback on the E&M port.
2. Send a 0 dBm (digital milliwatt) test signal toward the CPE at that end. That signal will
be substituted for the normal signal coming from the far-end CPE; it will be sent back to
the CPE at your end via the loopback path.
3. Check your CPE for this signal. If it is present, the far-end CPE or cabling to the far-end
E&M port is probably faulty. Disable the loopback and test signal there, and fix the
problem. If you still don’t receive a signal, go to step 4.

E&M Ports

7-15

Running Head

Model No.

4. At your end, go to the E&M port’s Main Screen and send a digital milliwatt test tone
(0 dBm) toward the CPE. If you still don’t receive a signal, check the cabling from the
E&M port to your CPE, and check the CPE itself. If those items are okay, replace the
E&M port at your end.
5. If the E&M port is determined to be faulty, return the faulty unit for repair to the
location specified by your distributor.

7-16

E&M Ports

SRU Ports

Introduction

Chapter 8
SRU Ports
8.1

Introduction
This chapter provides information regarding the configuration and troubleshooting for the
Low Delay Subrate Data (LD-SRU) ports.
The SRU ports allow you to connect up to 5 RS-232, low-speed and medium-speed (300 kbps
to 38.4 kbps) data terminals to the Integrated Access System. You can multiplex a number of
those devices onto a single DS0 time slot of a WAN or OWAN port. Each port has delay that
is a maximum 3ms +/- 10% end-to-end of rates 9.6 kbps or higher for sync, and maximum of
6ms +/-10% end-to-end of rates 9.6 kbps or higher for async.
Each LD-SRU port receives timing from either the external DTE or the Integrated Access
System clock. If the DTE supplies the transmit timing, that clock signal must be synchronized
to the Integrated Access System’s clock source.
Note:

8.2

Some changes to SRU ports require that the ports be put in standby then the active
modes for the changes to take effect.

SRU port User Screens and Settings
You must configure the SRU port for operation before use. This is done from the SRU port
Main Screen (Figure 8-1). To go to that screen, highlight the desired port on the System Main
Screen and press . The SRU port Main Screen has five columns of data for port
configuration purposes. The port numbers on the screen correspond to the port faceplate jacks.

Sub Rate Data Ports

8-1

Running
SRU
port Head
User Screens and Settings

Model
SRU
PortsNo.

Figure 8-1.Typical SRU port Main Screen
The highlighted bottom line of this screen shows numerous actions you can perform from this
screen. To perform an action, simply press the uppercase key indicated on this line. For
example, to save your option settings for this port, press “s”. Table 8-1 lists the actions you
can perform.

8-2

Sub Rate Data Ports

SRU Ports

SRU port User Screens and Settings

Table 8-1. Main Screen Actions
Action
Save
Undo
Refresh
Copy
Test
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., test status).
Copies the contents of the current column to the next column. Useful if you
change a lot of entries in one column and want to repeat those changes in
subsequent columns.
Initiates and monitors testing of all SRU port ports. Refer to the Test section
of this chapter.
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

Table 8-2 lists the SRU port Main Screen parameters and available option settings.

Table 8-2. Main Screen Option Settings and Defaults
Parameter
STATE
WAN/SRV

User Options
stdby act
none wan-1 wan-2 wan-3 wan-4 owan-1 owan-2
owan-3 owan-4
01-24 or 01-31
a b-5
1
.3 1.2 2.4 4.8 9.6 14.4 19.2 28.8 38.4
2
n/a 1 1-5
asyn sync
8 7 6 5
1 2
3
none odd even space mark
perm l0 l30 l60 l100 rl0 rl3 rl6 rl10 off
n/a int ext
off dte net
n/a off ocu csu dsu

TS
FRAME
RATE
SR TS
INTF
COM CF
CTS
TX CLK
LB
LB GEN

Notes

Default
stdby
wan-1
01
a
.3
1
asyn
8
1
none
perm
n/a
off
off

Notes:
1. The only options available for the SRU ports are: a and b-5.All five ports will use the
same Frame Format.
2. Speeds of 0.3, 1.2, and 14.4 are not supported for synchronous channels.
3. Communication Configuration is a three step process. This field will show n/a when
sync is chosen as the INTF option.

Sub Rate Data Ports

8-3

Model
SRU
PortsNo.

Running
SRU
port Head
User Screens and Settings

STATE
The State setting determines whether the port is active or inactive. Set this field to stdby
(standby) for ports that are not to be used or that have not yet been configured. Set it to actv
(active) for ports that are ready for use. The control leads assume the status shown in Table
8-3 for the different states.

Table 8-3. SRU port State Status
Control Leads
RLSD
CTS

Active
High or follows remote RTS
Definable

WAN Link Down
Low
Definable

Standby
Low
Low

WAN
The WAN setting identifies the WAN or OWAN link assigned to this port. When choosing the
type of wan, you must also select the desired port of the WAN or OWAN port for transmission
over the T1 or E1 link.
It is not necessary to assign all SRU ports to the same WAN or OWAN link, nor to contiguous
time slots on a WAN or OWAN link.

TS
The Time Slot setting identifies the time slot on the WAN link to which this port is connected.
Values range from 01 to 24 for T1 links, and 01 to 31 for E1 links. The SRU port can further
subdivide the WAN time slot into smaller segments for transmission of low-speed data. Each
WAN time slot can be further divided into a maximum of twenty 2.4 kbps time slots (see
Figure 8-2).

FRAME
The Frame setting allows you to define the sub-rate format that the port will use and to set the
usable space allotted to each WAN time slot. The choices are DS0A (a) for one subrate time
slot, DS0B with a limit of five subrate time slots (b-5). Note that all five ports will use the
same framing mode, whichever the craft person chooses. Figure 8-2 shows the DS0A and
DS0B framing subrate time slot interaction.

RATE
The Rate setting allows you to select the rate in kilobits per second (kbps) for data
transmission. The selection will change depending upon the framing mode and interface
selected. Figure 8-2 shows the bandwidth available for each selection.

8-4

Sub Rate Data Ports

SRU Ports

SRU port User Screens and Settings

WAN port #1 PORT #1 (wan-1)
TS #1

1
a
Framing
Maximum Speed
per SR TS (Kbps) 38.4

TS #2

1-5

SRU TS

b-5

38.4*

*Speeds greater than 9.6Kbps will occupy contiguous SRU Timeslots in 9.6Kbps
increments (i.e. a 19.2Kbps circuit would take SRU timeslots #1 and #2)

Figure 8-2.SRU Time Slot Integration
SR TS
The Subrate Time Slot (SR TS) indicates the subrate position within the DS0 time slot the port
will occupy (see Figure 8-2). If a framing is selected, only one subrate time slot is supported
and the SR TS setting will default to 1. If b-5 framing is selected, the available subrate time
slots are 1 to 5. Portions of subrate time slots can be assigned to any SRU port from any SRU
port in the system (see the configuration example later in this chapter).
In b-5 framing, if circuits with speeds greater than 9.6 kbps are assigned to the subrate time
slot, adjacent subrate time slots must be available to accommodate their size. A 19.2 kbps
circuit would occupy two contiguous subrate time slots (leaving space for up to three 9.6 kbps
circuits) and a 38.4 kbps circuit would occupy four contiguous subrate time slots (leaving
space for one 9.6 kbps circuit).
The SR TS number selected will be the first segment occupied by this circuit. If a 28.8 kbps
circuit occupies three segments of the b-5 frame, selecting SR TS 1 will assign it to segments
1, 2 and 3. Segments 4 and 5 may be assigned either independently to 9.6 (or less) kbps circuits
in SR TS 4 and 5 or combined for a 19.2 kbps circuit assigned to SR TS 4.
If a circuit exceeds the slots necessary to accommodate it, such as a 38.4 kbps circuit to SR
TS 3 in b-5 framing, the message "Invalid SR TS" will be displayed. If a circuit requires more
space than the SR TS has available, such as having a 38.4 kbps circuit in SR TS 1 and then
attempting to assign a 19.2 kbps circuit to SR TS 4, the message "SR TS overlapping" will be
displayed.

Sub Rate Data Ports

8-5

Running
SRU
port Head
User Screens and Settings

Model
SRU
PortsNo.

INTF
The Interface setting allows you to choose the protocol necessary for the terminal associated
with this port. The choices are asyn (Asynchronous), and sync (Synchronous). If Synchronous
transmission is selected, the choices for STOP, DATA and PAR will show as n/a (not
applicable).
Asyn option provides asynchronous to synchronous conversion. The asyn option is a
streamlined propriety algorithm which will increase the performance of the port.

COM CF
The Communication Configuration setting is a three-step process that allows you to choose
the Data bits, Stop bits, and Parity to be used. The Data setting allows you to change the
bits-per-byte number depending upon the type of terminal associated with this particular port.
The options are 8, 7, 6, and 5.
The Stop bits option allows you to select the number of Stop bits that check data sampling for
the terminal associated with this port. The options are 1 and 2.
The third choice is the Parity setting that changes the data parity for the terminal associated
with this port. The options are none, odd, even, space and mark.

CTS
The Clear To Send (CTS) setting allows you to define how the port should respond upon
receiving a Request to Send (RTS) from the attached DTE. This setting also allows you to
change the delay time (in milliseconds) from when the port receives RTS until it issues CTS.
The local option allows RTS to control CTS. The remote-local options allows RTS to control
both the CTS of the local equipment and RLSD of the remote equipment. The options are
perm (permanent), l0 (local–immediate), l30 (local - 30 ms), l60 (local - 60 ms), l100 (local
- 100 ms), rl0 (remote/local - immediate), rl3 (remote/local - 30 ms), rl6 (remote/local - 60
ms), rl10 (remote/local - 100 ms), and off.

TX CLK
The Transmit Clock setting allows you to choose the timing source for this port. The options
are n/a if async interfacing is chosen and int (internal), if sync interfacing is chosen. The int
setting uses the Integrated Access System as the clock source, and ext allows the DTE to
generate transmit timing.

8-6

Sub Rate Data Ports

SRU Ports

SRU port User Screens and Settings

LB
The Loopback setting allows you to activate local loopbacks on the SRU port. These settings
are off, toward the dte (DTE), and toward the net (network). Figure 8-3 shows a diagram of
the local loopback conditions.

Figure 8-3.Local Loopbacks

Sub Rate Data Ports

8-7

Model
SRU
PortsNo.

Running
Head
Test
Screen

8.3

Test Screen
Pressing “t” (Test command) in the SRU port Main Screen will bring up the Test Screen
shown in Figure 8-4. From this screen, you can create test situations between SRU ports, or
between a single port and data test equipment at a remote site.

Figure 8-4.Typical SRU port Test Screen
The bottom highlighted line of the Test Screen shows some actions you can perform from this
screen. To perform an action, just press the uppercase key for the desired choice. Table 8-4
lists these actions, and Table 8-5 lists the settings in the Test Screen, along with their possible
and default values. These settings are also described in the following paragraphs.

8-8

Sub Rate Data Ports

SRU Ports

Test Screen

Table 8-4. Test Screen Actions
Action
Save
Undo
Refresh
InsertErr
Clear
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., test status).
Allows you to manually insert a single error into the clear data signal.
Clears the Test Screen and resets all counters to zero.
Returns to the SRU port Main Screen. If changes are made to settings and
not saved, you will be prompted to save or lose changes.

Table 8-5. Test Screen Option Settings and Defaults
Parameter
BERT
DIR
CTS
RLSD
SYNC
BE
ES
SES
CSES
OSS
BER
ELAP
RTS
SR OSS
LB ST

User Options
off mark space 1:1 1:7 511
net user
norm off on
norm off on
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options

Default
qrss

2047

off
net
norm
norm
*****
*****
*****
*****
*****
*****
*****
*****
*****
*****
*****

BERT
Bit Error Rate Tester (BERT) sends a data pattern and measures the bit error rate (BER) on the
selected SRU port. The patterns that can be selected are off, mark (all ones), space (all zeros),
1:1 (alternating 10101010), 1:7 (10000000), 511 (511 test pattern), and 2047 (2047 test
pattern).

DIR
The Direction (DIR) setting allows you to specify where the BERT test signal should be
directed. The first option is net (network) which means that the test signal will be transmitted
through the system toward the Wide Area Network (WAN). The user option means that the
signal will be directed toward the attached DTE device over the RS-232 interface.

Sub Rate Data Ports

8-9

Running
Head
Test
Screen

Model
SRU
PortsNo.

CTS
The Clear To Send (CTS) option allows you to define whether the CTS control lead should be
held on (high) or off (low). Selecting either on or off will override the selection made in the
SRU port screen. The third option is norm (normal) which means that CTS will behave as
described in Table 8-3.

RLSD
The Receive Level Signal Detect (RLSD) option allows you to define whether the RLSD
control lead should be held on (high) or off (low). The third option is norm (normal) which
means that RLSD will behave as described in Table 8-3.

BE
The Bit Error field shows the total number of bit errors logged. Since this is an
information-only field, there are no user-selectable parameters.

ES
The Errored Seconds field shows the total number of seconds in which any errors were
detected. Since this is an information-only field, there are no user-selectable parameters.

CSES
The Consecutive Severely Errored Seconds (CSES) field is triggered by the occurrence of ten
consecutive Severely Errored Seconds. Once triggered, the CSES field will increment (by
one) for each elapsed second until the system logs ten consecutive non-Severely Errored
Seconds. Since this it an information-only field there are no user-selectable parameters.

8-10

Sub Rate Data Ports

SRU Ports

Test Screen

OSS
The Out of Synchronization Seconds field shows the number of seconds that the SRU BERT
has been out of synchronization. Since this is an information-only field, there are no
user-selectable parameters.

ELAP
The Elapsed time setting shows the running tally of the total number of seconds during the
test. Since this is an information-only field, there are no user-selectable parameters for this
option.

RTS
The Request To Send (RTS) field shows the current status of the RTS control lead. The two
values that can be displayed are on and off. Since this is an information-only field, there are
no user-selectable parameters for this option.

SR OSS
The Subrate Out of Synchronization Seconds (SR OSS) field shows how many seconds in
which there was a Subrate framing loss. Since this is an information-only field, there are no
user-selectable parameters for this option.

LB ST
The Loopback State (LB ST) field indicates whether there are any remotely-initiated
loopbacks currently active on the SRU port. This field will display both latching and
non-latching loopbacks that are initiated from a remote device via in-band loop-up codes. In
addition to none, the six possible messages that can be displayed in that field are l-ocu, l-dsu,
and l-csu for latching loopbacks; or ocu, dsu, and csu for non-latching loopbacks. Since this
is an information-only field, there are no user-selectable parameters for this option.

Sub Rate Data Ports

8-11

Model
SRU
PortsNo.

Running
SRU
port Head
Error Messages

8.4

SRU port Error Messages
Refer to Appendix B in the System Reference Guide for further information on Error
Messages regarding this port.

8.5

SRU port Troubleshooting
SRU port problems could indicate a number of possible causes, including:
•

Faulty receiving DTE at the near end (where the problem was first noticed)

•

Faulty transmitting DTE at the far (opposite) end

•

Faulty cabling between the DTE and SRU port at the near end

•

Faulty cabling between the DTE and SRU port at the far end

•

T1 network failure

•

Improper port configuration at either end (e.g., time slot and/or WAN port assignments)

Typically, a problem is indicated by a loss of incoming signal on a data port at either end of
the circuit. When troubleshooting transmission problems on a data circuit passing through an
SRU port, follow this general sequence:
1. Verify that the T1 network is working properly by checking for current CGA-Red and
CGA-Yellow alarms. If the network is faulty, the same transmission problem may exist
with the other ports of the same SRU port, and also with the data ports of all other data
ports connected to the same T1 line. If no CGA alarms are present, continue with step 2.
2. Verify that the DS0 time slot and sub-rate TS assignments of the faulty port at both ends
of the data circuit path are correct. Also be sure the port is connected to the proper WAN
port and port and that other critical parameters, such as RATE, are set the same at each
end. If these assignments are correct, continue with step 4.
3. At the local end (where the incoming data loss was first observed), use the loopback
and test signal functions of the SRU port to test the affected port. These tests are
accessible from the SRU port Main Screen (through the LB and related parameters) and
its associated Test Screen (through the BERT parameter), as previously described in
this chapter. These allow you to test the circuit path in segments and thereby quickly
pinpoint the problem.
4. If necessary, also perform loopbacks and send test signals to the affected circuit from
the other end. In addition, you can perform end-to-end tests using a suitable data test
set at one or both ends of the circuit in conjunction with the loopback functions of the
SRU port at either end.
5. If the SRU port is determined to be faulty, the IMACS-200 will need to be replaced or
returned for repair to the location specified by your distributor.

8-12

Sub Rate Data Ports

Chapter 9
HSU Ports
9.1

Introduction
This chapter provides information regarding the configuration and troubleshooting for the
IMACS-200 High-Speed Data Ports. The IMACS-200 provides two High-Speed Data ports
which connect via an RS-530 interface DB-25 connector, and employ V.35 standard for
high-speed synchronous data exchange.
The HSU ports allow you to connect high-speed data terminal equipment (DTE) to WAN links
and/or other HSU ports.

9.2

HSU Ports
The IMACS-200 supports two V.35 CPE devices. Each port is configured to operate as a DCE,
with data speeds set at either 56 or 64 kbps.

CAUTION!
If used in a system using a T1 “Line Code” other than “B8ZS,” HSU card ports assigned to multirate
circuits greater than or equal to 4 or more consecutive time slots at 64kbps must have DTE
connected to the port prior to activation. Failure to attach DTE will cause a false carrier alarm.
The IMACS-200 can be used in data applications where the circuit has many timeslots (up to
24 for T1, and 32 for E1). The transmit and receive clock edges can be individually selected
(refer to Tx and Rx CLOCK PLRTY descriptions later in this chapter).

High Speed Data Ports

9-1

Model No.

Running Head

9.2.1

HSU Port Cables
For connecting HSU Ports for DTE and DCE transmit clocking, use the PRM-1261M cables.

9.3

HSU Card User Screens and Settings
The HSU Cards permit configuration and operation through use of several user screens and
optional settings.

9.3.1

HSU Card Main Screen
You must configure the HSU ports for operation. Configuration can be performed from the
HSU Main Screen, which is shown in Figure 9-1.

Figure 9-1.HSU Main Screen
The bottom highlighted line on this screen lists several actions you can perform from the
screen. To perform an operation, simply press the uppercase letter associated with the desired
action. For example, to save your option settings, type “s”. Table 9-1 lists the actions you can
perform.

Table 9-1. HSU Card Main Screen Actions

Action
Save

9-2

Function
Saves changes to settings.

High Speed Data Ports

Undo
Refresh
Copy

Test
Main

Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Copies the contents of the current column to the next column. Useful if you
change a lot of entries in one column and want to repeat those changes in
subsequent columns.
Initiates and monitors testing of all HSU Card ports. Refer to the Test section
of this chapter.
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

Table 9-2. HSU Setting Options and Defaults
Parameter

User Options

stdby actv
wan-1 wan-2 wan-3 wan-4 owan-1 owan-2
owan-3 owan-4
MODE
dce
TS
table
RATE
64k 56k
TX CLOCK
int ext
Tx CLOCK PLRTY norm inv
Rx CLOCK PLRTY norm inv
DATA PLRTY
norm inv
CTS
perm rlocal ignor local
CTS DELAY
0 30 60 100
LOCAL LB
off dte net
LB GEN MODE
v.54 ft1
LB GEN
off ds0
LB DET
w/to on off
EER THRHD
off 10e-4 10e-5 10e-6 10e-7 10e-8 10e-9

Notes

STATE
WAN

Default
stdby
wan-1

dce
table
56k
int
norm
norm
norm
perm
0
off
v.54
off
w/to
off

Notes:
1. The valid range displayed is from 1-24 for T1, and 1-31 for E1.

STATE
The State setting determines whether the port is active or inactive. An inactive port does not
occupy time slots on a WAN link. Set State to standby (stdby) for ports you are not using or
have not yet configured. Set it to active (actv) for ports that are ready for use. The control leads
assume the status shown in Table 9-3 for the different states.

High Speed Data Ports

9-3

Model No.

Running Head

Table 9-3. HSU State Status
Control Leads

Active

WAN Link Down

Standby

RLSD

High or follows remote RTS

Low

DSR

High

Low

CTS

Definable

High

WAN
The WAN setting identifies the WAN or OWAN port to which the output of this port is
directed. I (the options are wan-1 to wan-4, and owan-1 to owan-4).

MODE
The Mode parameter allows you to identify how the HSU port appears to the device on the
other end of the interface cable. The dce option causes the port to be recognized as a DCE
(data circuit-terminating equipment) device. The dce option is always chosen in the first
offering of the IMACS-200.This allows the end user to connect a dte device to the port.

TS
The TS (time slot) setting identifies the time slots on the WAN link when wan or owan is the
WAN/SRV setting. The HSU ports can use many time slots on a single WAN or OWAN port
to create a super-rate circuit for an individual HSU port. One or all DS0 time slots on a single
T1 or E1 link can be assembled for use by an HSU port in order to satisfy the speed
requirements of the DTE.
The time slot numbers range from 1 to 24 for T1, and 1 to 31 for E1. Figure 9-2 shows the
display when table is selected. Using the space bar to select and deselect the time slot, this
example shows time slots 10 to 12 on WAN 1-1 assigned to this port. The time slot
assignments do not have to be contiguous on any card port.

9-4

High Speed Data Ports

Figure 9-2.HSU Port Time Slot Assignment Screen
RATE
The Rate setting allows you to select the bandwidth for all time slots assigned to this port. The
available options are 56k or 64k. This selection is multiplied by the number of time slots
assigned to the port, to define the overall port speed. For example, if you choose 64k as the
port Rate and assign four time slots to that port, the overall port speed is 256 kbps.

Tx CLOCK
The Transmit Clock (Tx CLOCK) setting identifies the clock source for the SD (send data)
signal from the external CPE. The int (internal) setting requires an external DTE to
synchronize its transmitted data with the clock on the SCT leads. The ext (extended) setting
requires the DTE to synchronize its transmitted data with the clock on the SCTE leads.
Use ext with a long cable run to ensure the data and clock are in-phase when they arrive at the
system. The DTE must loop back the clock on the SCT leads to the SCTE leads.
If ext is selected but the system does not detect an incoming clock on the SCTE leads, the HSU
Card automatically generates an internal clock. If this clock is not synchronized with the
incoming data, reset the CLOCK PLRTY option to synchronize the clock and data. The Tx
CLOCK PLRTY option settings are described in the next paragraphs.

High Speed Data Ports

9-5

Running Head

Model No.

Tx CLOCK PLRTY
The Transmit Clock Polarity (Tx CLOCK PLRTY) setting provides another way to
compensate for long cables in those cases where the DTE equipment does not provide SCTE.
When you choose inv (inverted mode), the relationship between the clock and data is altered
to compensate for long cable runs that the data signals must traverse between the card port and
CPE. When you choose norm (normal), the relationship between the clock and data is
unchanged. If you use inv, set the Tx CLK (Transmit Clock) option above to int (internal).

Rx CLOCK PLRTY
The Receive Clock Polarity (Rx CLOCK PLRTY) setting provides another way to
compensate for long cables in those cases where the DTE equipment does not provide SCTE.
When you choose inv (inverted mode), the relationship between the clock and data is altered
to compensate for long cable runs that the data signals must traverse between the card port and
CPE. When you choose norm (normal), the relationship between the clock and data is
unchanged. If you use inv, set the Tx CLK (Transmit Clock) option above to int (internal).

DATA PLRTY
The Data Polarity (DATA PLRTY) option allows you to either send all data bits to the network
as normal ones and zeros, or to invert all bits in the transmitted data stream. Choose norm
(normal) to leave the transmitted data intact; or, choose inv (inverted) to invert all outgoing
data. This can be helpful in ensuring minimum-ones density transmission over T1 links when
the data contains long strings of zeros. Inverting the zeros reduces the likelihood that the
composite T1 stream will not meet minimum-ones density requirements. Both systems of the
end-to-end HSD circuit path require the same DATA PLRTY option setting.

CTS
The Clear To Send (CTS) setting controls when data is sent. Some DTE equipment must
receive a CTS signal before transmitting data. Set the CTS option to perm (permanent) to
make CTS permanently High (asserted). Choose rlocal (remote-local) to allow RTS to control
both CTS on the local DTE device and RLSD on the remote DTE device.
Choose to ignor (ignore) to always force CTS Low (negated). Set the CTS option to locl
(local) to make CTS follow RTS from the local DTE.

9-6

High Speed Data Ports

CTS DELAY
The Clear To Send (CTS) Delay setting delays changes in the CTS signal in the local mode.
Enter the value you need in milliseconds. The available options are 0, 30, 60, and 100 ms. If
you do not know what value you need, start with 0 (zero) ms and increase the value gradually
until you no longer experience problems. The CTS option above must be set to locl before the
CTS DELAY setting has any effect.

LOCAL LB
The Local Loopback (LOCAL LB) option activates a loopback on the selected card port.
Choose the dte setting to loop the outgoing data from the external DTE device back to the
DTE receiver. This loopback (see Figure 9-3 on page 9-7) allows you to check the local
cabling and most of the circuitry in the HSU port. It also disconnects the incoming data from
the far end.

Figure 9-3.Local DTE Loopback
Choose the net (network) setting to loop the incoming data from the network back toward the
far end. This loopback is shown in Figure 9-4. It tests some of the local HSU Card circuitry,
the local system common cards, the WAN link card, the far-end HSU port and CPE device,
and the WAN link between the two sites. The net setting also drops the Data Set Ready (DSR)
control signal output on the HSU port.

High Speed Data Ports

9-7

Model No.

Running Head

Figure 9-4.Local Network Loopback
LB GEN MODE
The Loopback Generation Mode (LB GEN MODE) setting defines the type of inband loop-up
and loop-down codes that will be sent to the remote equipment. Two industry-standard codes
are supported: v.54, which is compatible with CCITT V.54 standard and ft1, which is
compatible with ANSI Fractional T1 standards.

LB GEN
If you selected v.54 or ft1 as the Loopback Generation (LB GEN) mode setting, the Loopback
Generation setting allows you to send an on (loop-up command) or off (loop-down
command).
Note that you cannot perform loop-up and loop-down commands on more than one port of the
IMACS-200 simultaneously. You must finish all loopback operations on one port before
starting them on another port.

LB DET
Depending on the selection you made for the Loopback Generation mode above, the
IMACS-200 port will respond to any of the loopback codes generated by a remote system. The
Loopback Detection (LB DET) setting lets you enable or disable this capability on each port.
However, this setting does not affect local loopback commands from a local control terminal.
Choose off to have the port ignore remote loopback commands. Choose on to make the port
monitor for loopback commands sent from the remote equipment. Note that the system will
detect only the loopbacks in the format selected as the LB GEN mode. When the system
detects a loopback code, it loops the data back until the remote equipment releases the
loopback. The w/to (with time-out) setting is the same as on, except that after 10 minutes the
system automatically releases the loopbacks initiated by the remote equipment.

9-8

High Speed Data Ports

EER THRHD
The Excessive Error Rate (EER) Threshold (THRHD) parameter setting defines an error rate
threshold which, when exceeded, causes an alarm to be declared. If the number of errors
exceeds this threshold, an E will be placed in the Status Column of the port’s Performance
Monitoring Screen. The available options are from 10e-4 (one error in 10,000 bits) to 10e-9
(one error in 1,000,000,000 bits), or off. Choose off if you do not want to report alarms for
excessive error rates.

High Speed Data Ports

9-9

Model No.

Running Head

9.3.2

HSU Card Test Screen
Selecting “Test” from the HSU Main Screen will access the Test Screen shown in Figure 9-5.
From this screen, you can create test situations between HSU ports, or between a single port
and test equipment at a remote site. Table 9-4 lists the actions you can perform from the
bottom line of this screen, and Table 9-5 lists the settings presented on this screen, along with
their possible and default values.

Figure 9-5.HSU Port Test Screen
Table 9-4. Test Screen Actions

Action
Save
Undo
Refresh
InsertErr
Clear
Main

9-10

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Allows you to manually insert a single error into the clear data signal.
Clears the Test Screen and resets all counters to zero.
Returns to the HSU Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

High Speed Data Ports

Table 9-5. Test Screen Option Settings and Defaults

Parameter
BERT
DIR
SYNC
BE
ES
SES
CSES
OSS
BER
ELAP
LB ST

User Options
off mark space 1:1 1:7 3:24 qrss prb11
prb15 prb20
net user
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options

Notes

Default
off
net

BERT
The Bit Error Rate Tester (BERT) sends a data pattern and measures the bit error rate (BER)
on the selected HSU port. The patterns that can be selected are off, mark (1111), space (0000),
1:1 (1010 alternating), 1:7 (0100-0000), 3:24, qrss (quasi-random signal source),
prb11(pseudorandom binary sequence), prb15 and prb20.

SYNC
The Synchronization field indicates if the integrated BERT has achieved synchronization
either with itself via a remote loopback or with the remote test equipment. This is an
information-only field; it is not user-configurable.

BE
The Bit Error (BE) field indicates the total number of bit errors logged. This is an
information-only field; it is not user-configurable.

ES
The Errored Seconds (ES) field indicates the total number of seconds in which errors were
detected. This is an information-only field; it is not user-configurable.

High Speed Data Ports

9-11

Running Head

Model No.

SES
The Severely Errored Seconds (SES) field indicates the total number of seconds in which the
bit error rate exceeded one bit per thousand (1 x 10-3). This is an information-only field; it is
not user-configurable.

CSES
The Consecutive Severely Errored Seconds (CSES) field is triggered by the occurrence of ten
consecutive Severely Errored Seconds. Once triggered, this field will increment (by one) for
each elapsed second until the system logs ten consecutive non-Severely Errored Seconds. This
is an information-only field; it is not user-configurable.

OSS
The Out of Synchronization Seconds (OSS) field indicates the number of seconds that the
HSU BERT has been out of synchronization. This is an information-only field; it is not
user-configurable.

BER
The Bit Error Rate (BER) field indicates the rate at which errors are being logged. The system
calculates BER by dividing the number of bit errors (BE) by the total number of bits
transmitted during the test. This is an information-only field; it is not user-configurable.

ELAP
The Elapsed time (ELAP) setting indicates the running tally of the total number of seconds
during the test. This is an information-only field; it is not user-configurable.

LB ST
The Loopback State (LB ST) field indicates whether there are any remotely-initiated
loopbacks currently active on the HSU port. This field displays latching loopbacks initiated
from a remote device via in-band loop-up codes. In addition to none, the system will display
V.54 or FT1 (fractional T1). This is an information-only field; it is not user-configurable.

9-12

High Speed Data Ports

9.4

HSU Error Messages
Refer to Appendix B for further information on HSU Error Messages.

9.5

HSU Port Troubleshooting
Problems with an HSU ports could be caused by a number of things. Typically, a problem is
indicated by a loss of incoming signal on a data port at either end of the circuit. You can
perform numerous tasks to isolate the trouble and clear it. When troubleshooting transmission
problems on a data circuit passing through an HSU port, follow this general sequence:
1. First, verify that the T1 network is working properly by checking for current CGA-Red
and CGA-Yellow alarms. If the network is faulty, the same transmission problem will
exist with the other HSU port, and also with the data ports of all other data cards
connected to the same T1 line. If no CGA alarms are present, continue with step 2.
2. If the trouble is only with the current HSU port, continue with step 3.
3. Check the DS0 time slot assignments of the faulty port at both ends of the data circuit
path. Also be sure the port is connected to the proper WAN port at each end. If these
assignments are correct, continue with step 4.
4. At the local end (where the incoming data loss was first observed), use the loopback
and test signal functions of the HSU port to test the affected port. These tests are
accessible from the HSU Main Screen and associated Test Screen, as previously
described in this chapter. They allow you to test the circuit path in segments and thereby
quickly pinpoint the problem.
5. If necessary, also perform loopbacks and send test signals to the affected circuit from
the other end. In addition, you can perform end-to-end tests using a suitable data test set
at one or both ends of the circuit in conjunction with the loopback functions of the HSU
port at either end.
6. Should the HSU port be determined as faulty, return the IMACS-200 for repair to the
location specified by your distributor.

High Speed Data Ports

9-13

Running Head

9-14

Model No.

High Speed Data Ports

Chapter 10
OHSU ports
10.1 Introduction
This chapter provides configuration, and troubleshooting information for the optional Optical
High-Speed Data Unit (OHSU) ports. These ports are labeled on the rear faceplate as OHSU1
and OHSU2. Connectors above each OHSU port LED indicator are labeled Tx and Rx for the
transmit and receive fiber connectors. Each OHSU port allows you to connect to Telephone
Protection Equipment (TPE) in compliance with IEEE C37.94.
Refer to the IMACS-200 Ordering Guide on page vi of the Product Description Chapter for
information regarding units that contain the Optional OHSU interface.

10.2 OHSU port
10.2.1 Two-Port OHSU port Description
The OHSU port provides two full duplex IEEE C37.94 multi-mode optical ports for optical
serial N times 64 kbps interface capability. Each optical port contains a transmit (Tx) and
receive (Rx) connector along with a status LED. The ports shown below in Figure 10-1 show
the two ports on the rear of the box, with the dust caps removed from OHSU port 1, ready for
optical connectors.

RS-530

Figure 10-1.Optional two-Port OHSU port

OHSU Ports

10-1

Model No.

Running Head

10.2.2 OHSU port Cables
The OHSU port utilizes 50 um or 62.5 um optical fiber cables with BFOC12.5 (ST)
connectors. A separate transmit and receive fiber is required for each port.

10.3 OHSU port User Screens and Settings
The OHSU ports permit configuration and operation through use of several user screens and
optional settings.

10.3.1 OHSU port Main Screen
You must configure the OHSU port ports for operation. Configuration can be performed from
the OHSU port Main Screen, which is shown in Figure 10-2. To access that screen, highlight
the desired port in the System Main Screen and press .

Figure 10-2.Typical OHSU port Main Screen
The bottom highlighted line on this screen lists several actions you can perform from the
screen. To perform an operation, simply press the uppercase letter associated with the desired
action. For example, to save your option settings, type “s”. Table 10-1 lists the actions you can
perform.

10-2

OHSU Ports

Table 10-1. OHSU port Main Screen Actions
Action
Save
Undo
Refresh
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

Table 10-2. OHSU port Setting Options and Defaults
Parameter
STATE
WAN/SRV
MODE
TS
RATE
TX CLOCK
LOCAL LB

User Options
stdby actv
none wan-1 wan-2 wan-3 wan-4
owan-1 owan-2 owan-3 owan-4
mux
table (up to 12 TS)
64k
int (mux MODE)
off user net

Default
stdby
none
mux
no assignment
64k
int
off

WAN
The WAN setting identifies the WAN or OWAN port to which the output of this port is
directed. The options are wan-1 to wan-4, and owan-1 to owan-4.

MODE
The Mode parameter appears for information only. The OHSU is fixed in the MUX mode.

OHSU Ports

10-3

Running Head

Model No.

WAN TS
The TS (time slot) setting identifies the time slots on the WAN link. Unlike other user ports,
the OHSU port can use many time slots on a single WAN or OWAN port to create a super-rate
circuit for an individual OHSU port. One to 12 DS0 time slots on a single T1 or E1 can be
assembled for use by an OHSU port in order to satisfy the speed requirements of the
Telephone Protection Device (TPD).
The time slot numbers range from 1 to 24 for T1 links, and 1 to 31 for E1 links. Figure 10-3
shows the display when table is selected. Using the space bar to select and deselect the time
slot, this example shows time slots 1 to 5 on WAN 1-1 assigned to port 2. The time slot
assignments have to be contiguous on any port.

Figure 10-3.Typical OHSU Port Time Slot Assignment Screen
Tx CLOCK
The OHSU ports behave as IEEE C37.94 MUX ports so the Transmit Clock (Tx CLOCK)
setting can only be int (internal).

LOCAL LB
The LOCAL Loopback (LOCAL LB) option activates a loopback on the selected port. Choose
the User setting to loop the outgoing data from the external TPE device back to the TPE
receiver. This loopback (see Figure 10-4) allows you to check the local cabling and most of
the optical circuitry in the OHSU port. It also disconnects the incoming data from the far end.

10-4

OHSU Ports

Figure 10-4.Local User Loopback
Choose the net (network) setting to loop the incoming data from the network back toward the
far end. This loopback is shown in Figure 10-5. It tests some of the local OHSU port circuitry,
the local system common ports, the WAN link port, the far-end OHSU port and CPE device,
and the WAN link between the two sites.

Figure 10-5.Local Network Loopback
Alarm
The alarm field is an indication field that shows the optical link status.

Table 10-3. Alarm Field
Field

OHSU Ports

Optical Link Status

Norm

The optical link is operating properly.

Yellow

The TPE is reporting a reception fault.

Red

The OHSU port is reporting a reception fault.

10-5

Running Head

10-6

Model No.

OHSU Ports

Alarm ports

Introduction

Chapter 11
Alarm ports
11.1 Introduction
The IMACS-200 system has eight alarm ports configured as:
Four outbound alarm switches (relay contacts) to allow the system to report alarms to
external buzzers, bells, lights, alarm annunciators and other systems. The alarm
contacts are controlled by the system software and can be configured for reporting
various internal IMACS-200 alarms.
Four inbound alarm sensors will allow the IMACS-200 system to receive alarms reported
by external devices such as back-up power systems, open door sensors, high water
sensors, etc. Each inbound port has a sensor that detects activity from alarm contacts
on the external equipment. Once detected, the alarm is reported on the IMACS-200
user interface and in its alarm log.
Each alarm port can be individual controlled by the system operator. These ports are discussed
in detail below.

Alarm Ports

11-1

Running
Head
Alarm
port
User Screens and Settings

Model
Alarm
portsNo.

11.2 Alarm port User Screens and Settings
11.2.1 Alarm Filter Screen Sensor Setting
First, make sure the master setting for all alarm sensors is set properly as the SENSOR variable
in the Alarm Filter Screen. To set this variable, first select Alarms from the System Main
Screen, then choose Filters. This will display a list of alarm filters, as shown in Figure 11-1.
In this menu, use the arrow keys to highlight the first column of the SENSOR line. Pressing
displays the options ignore, log, and report. The option chosen here will act as the
highest-level option for all alarm port sensors. If this variable is set to ignore, any alarm
conditions on the alarm port will be ignored, even if you set them up individually to log or
report.
Likewise, if you set this variable to log, all sensors on the Alarm port that are set to anything
other than ignore will be logged but not reported. For this reason, it is crucial that the
SENSOR variable be set to report (see Figure 11-1). The following screen is the default alarm
filter settings that are set on the IMACS-200.

Figure 11-1.Alarm Filter Screen

11.2.2 Alarm Ports Main Screen
Figure 11-2 shows the Alarm level from the Main Screen. To go to this screen, highlight the
ALM area in the System Main Screen and press .

11-2

Alarm Ports

Alarm ports

Alarm port User Screens and Settings

Figure 11-2. Alarm Level from the Main Screen
Figure 11-3 shows the Alarm Ports Main Screen. This screen allows the crafts person to
individually set the alarm outputs (SWITCH) and the alarm inputs (SENSOR).The inputs are
received on leads through the 50-pin Amphenol connector. Please refer to Table 2-5 on page
2-8 for the pin-out descriptions. The outputs are transmitted through the RJ45 connector
labeled ALARM on the rear of the IMAC-200 chassis, along with the Sub Rate Data
connectors. Please refer to Table 2-9 on page 2-11 for a description of the output pin-outs.

Figure 11-3.Alarm Contact Settings
The bottom highlighted line of the screen shows actions that you can perform from this screen.
To perform an action, simply press the uppercase letter on your keyboard that corresponds to
the desired action. Table 11-1 lists these actions, and Table 11-1 summarizes the port option
settings and default values. Each parameter is also described in the following paragraphs.

Alarm Ports

11-3

Model
Alarm
portsNo.

Running
Head
Alarm
port
User Screens and Settings

Table 11-1. Alarm Contacts Main Screen Actions
Action
Save
Undo
Refresh
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated on screen (i.e., alarm data).
Returns to the System Main Screen. If changes are made to settings and
not saved, you will be prompted to save or lose changes.

Table 11-2. Alarm Contacts Settings and Defaults
Parameter
SWITCH
ACT ON
SENSOR
TRIG ON

User Options
stdby actv
minor major
stdby actv
close open

any

Default
stdby
minor
stdby
close

SWITCH
The Switch setting indicates that the outbound alarm switch is actv (on) or stdby (off).

ACT ON
The Act On parameter defines the type of system alarm that will cause the switch to trigger.
Program each alarm switch to trigger on minor (information and minor) alarms, major (major
and critical) alarms, or any alarm message.

SENSOR
The Sensor setting indicates the inbound alarm sensor is actv (on) or stdby (off).

TRIG ON
The Trigger On parameter defines if the sensor should report an external alarm upon sensing
the opening (open) or the closure (close) of the external contact to which it is connected.

11-4

Alarm Ports

Alarm ports

Alarm port Error Messages

11.3 Alarm port Error Messages
Refer to Appendix B in this Guide for further information on Error Messages regarding these
ports.

11.4 Alarm port Troubleshooting
Alarm port problems could indicate a number of possible causes. Typically, a problem is
indicated by the loss of an incoming alarm signal on a sensor port or the lack of a contact
closure/open in response to an internal alarm. Steps designed to isolate the source of the
problem and return the port to normal operation are detailed below. When troubleshooting
Alarm port problems, you should follow this general sequence:
1. Verify that the Alarm port sensor filter (SENSOR) is set to either log or report in the
Alarm Filters Menu. This menu is accessed by selecting "Alarms" from the Main Screen
(not the Alarm port Screen), and then selecting "Filters." Column 1 lists the filter setting
(ignore, log, or report). You can change the filter setting by highlighting the item you wish
to change and pressing the key. Use the arrow keys to highlight a new filter
setting and press the key again. If you are satisfied with your selections,
remember to "Save" before exiting the screen. If you make any changes and then attempt
to exit the screen without saving, you will be prompted "Ok to lose changes (y/n)?" You
must select "y" or "n". If you select "y", any changes will be lost and all selections will
revert to the last saved state.
2. On the Alarm port menu, verify that the switch/sensor in question is set to active (actv).
If set correctly and the problem is with a switch (contact), go to step 3. If the problem is
with a sensor, go to step 5.
3. Verify that the amphenol cable is connected correctly to the Voice port. At a
cross-connection point between the Alarm port and the external “scan point”, open the
circuit under test. Connect a Volt-Ohmmeter set to read resistance across the Alarm port
contact in question. If no alarm of the type (Major, Minor or Any) that the contact is
programmed to act upon is present, and it is a normally open (NO) contact, the meter will
read infinite resistance. If you are testing a normally closed (NC) contact, the meter will
read 0 ohms resistance.
4. Generate an alarm of the type (Major, Minor or Any) that the contact is programmed
to act upon. The Volt-Ohmmeter should detect a resistance change from 0 to infinite or
infinite to 0, depending on the type of contact (NO or NC). If no change is detected, the
switch port may be defective.
5. Verify the RJ45 cable is connected correctly to the Alarm port. At a cross-connection
point between the Alarm port and the external equipment, open the circuit under test.
Connect a short across the Alarm port sensor input in question. A SENSOR alarm should
be reported. If no alarm is reported, the sensor port may be defective.

Alarm Ports

11-5

Running
Head
Alarm
port
Troubleshooting

Model
Alarm
portsNo.

6. If the Alarm port is determined to be faulty, return the faulty unit for repair to the
location specified by your distributor.

11-6

Alarm Ports

IP Routing

Introduction

Chapter 12
IP Routing
12.1 Introduction
This chapter provides information for the IP Router (IPR) function contained in the IMACS
200 platform.

12.2 IPR Description
12.2.1 IMACS 200 IPR
The IMACS 200 IPR port is an Ethernet interface port and uses a modular jack for a 10Base-T
connection (RJ48), and is labelled ENET on the rear panel of the IMACS 200.
The IMACS 200 IPR port is an IPR router that routes packets based on IP destination address.
IPR routes IP datagrams between Ethernet and Frame Relay PVCs. Frame Relay PVCs must
be associated with the Frame Relay port. IPR also has provisions to forward IP packets to and
from the host (CPU) IP node of the IMACS 200 that IPR resides in. It automatically takes care
of all the IP fragmentation to and from the host (CPU) IP node.
The maximum number of bytes that an IPR can handle in a single packet is 1520 bytes
regardless whether a packet arrives from Ethernet or Frame Relay interface.
Currently, the IPR does not support SNMP, and will be available in a future release. It uses the
standard Ethernet encapsulation, utilizing 14 bytes Ethernet Header: Source Ethernet Address
(6 bytes), Destination Ethernet Address (6 bytes), and a Protocol Type (2 bytes). IPR supports
RIP (Routing Information Protocol, RFC 1058) for dynamically discovering IP routes from
adjacent IP routers on Frame Relay or Ethernet.
The IMACS 200 implementation of the IPR function does not contain provisions for the
bridging function. The WAN interface is standard encapsulation of Ethernet over Frame Relay
(RFC 1490).

IPR

12-1

Running
Head
Frame
Relay
Network

Model No.
IP Routing

12.3 Frame Relay Network
12.3.1 IPR Connecting IP LANs
The IPR Card can be used for connecting IP LANs together through Frame Relay Network.
Figure 12-1 shows a Frame Relay Network between two Ethernet LANs.

Figure 12-1.IPR Card Connected to IP LANs through Frame Relay Network

12-2

IPR

IP Routing

Frame Relay Network

12.3.1.1 IPR to the Internet
The IPR card can be used as a gateway to the Internet through Frame Relay Network. Figure
12-2 shows how the IPR is routed through Frame Relay Network to the Internet Router.

Figure 12-2.IPR Card Routed to the Internet through Frame Relay Network

IPR

12-3

Running
Head
Frame
Relay
Network

Model No.
IP Routing

12.3.1.2 IPR
The IPR Card can be used for connecting IP nodes on Ethernet to the IP nodes on Frame Relay
Network.This is used for network management solutions. Figure 12-3 shows how the IPR card
is used to connect IP nodes on Frame Relay Network.

Figure 12-3.IPR Card Connected to IP Nodes on Ethernet to Frame Relay Network

12-4

IPR

IP Routing

IPR Configuration Screens and Settings

12.4 IPR Configuration Screens and Settings
12.4.1 IPR Main Screen
The Ethernet IP screen activates the Ethernet ports for routing to an IP address. Figure 12-4
shows the Ethernet and Default IP screen.

Figure 12-4.IPR Ethernet and Default IP Screen
Table 12-1. IPR 1Ethernet and Default IP Screen Actions
Action
Ping
Save
Undo
Fr
rOute
Refresh
Main

IPR

Function
Send a ping message to an address
Save the parameter settings
Resets the parameter settings to default
Go to Frame Relay screen
Go to Routing Table Screen
Refreshes the current screen
Go back to the IP Interface Menu screen

12-5

Model No.
IP Routing

Running
Head
IPR
Configuration
Screens and Settings

Table 12-2. IPR 10B2 and 10BT Ethernet and Default IP Option Settings and Defaults
Parameter
ETH IPR STATE
ETH IPR ADDR
ETH IPR MASK
ETH IPR RIP
EHT IPR SH
DEFAULT GATEWAY

User Options
actv
stdby
IP Address of Ethernet Port
IP mask of Ethernet Port
none R T R&T
on off
ipaddr

Default
stdby
0.0.0.0
255.255.255.255
none
off
0.0.0.0

ETH IPR STATE
Activates or deactivates Ethernet port. The settings are actv or stdby.

ETH IPR ADDR
IPR’s own Ethernet IP address on this IP network.

ETH IPR MASK
The IP netmask value used for this IP network.

ETH IPR RIP
RIP parameters. The default is R&T (Receive & Transmit). Other options are R, T, and none.

ETH IPR SH
Enables or disables split horizon on Ethernet. Options are yes or no.

DEFAULT GATEWAY
IP address of the default gateway.

12-6

IPR

IP Routing

IPR Configuration Screens and Settings

12.4.2 Frame Relay Ports Configuration Screen
The Frame Relay Ports Configuration screen displays when pressing “F” (Fr) from the IP
Interface Menu screen. Figure 12-5 shows the Frame Relay Ports Configuration screen. This
screen allows the user to activate the Frame Relay ports.

Figure 12-5.IPR Frame Relay Menu
Table 12-3. IPR Frame Relay Menu Screen Actions
Action
Save
Undo
Refresh
pVc
Lmi
Main

IPR

Function
Saves parameter settings
Undo (without saving) the actions performed to this point.
Refreshes current screen
Goes to the Frame Relay PVC Configuration screen
Goes to the Frame Relay LMI screen for this port
Returns to the Frame Relay menu screen

12-7

Model No.
IP Routing

Running
Head
IPR
Configuration
Screens and Settings

Table 12-4. IPR Frame Relay Menu Option Settings and Defaults
Parameter
FRM RLY STATE
FRM RLY WAN
FRM RLY TS
FRM RLY PORT
FRM RLY LMI
FRM RLY T391
FRM RLY T392
FRM RLY N391
FRM RLY DCE N392
FRM RLY DTE N392
FRM RLY DCE N393
FRM RLY DTE N393
FRM RLY LOOPBACK

User Options
actv stdby
wan-1 wan-2 wan-3 wan-4 owan-1 owan-2
owan-3 owan-4
1-24, 1-31
u-dte u-dce nni none
ansi ccitt lmi none
5-30
5-30
1-255
1-10
1-10
1-10
1-10
off line local

Default
stdby
none
n/a
none
n/a
n/a or 10
n/a or 15
n/a or 6
n/a or 3
n/a or 3
n/a or 4
n/a or 4
off

FRM RLY STATE
Activates or disables the Frame Relay port. Options are actv (active), or stdby (standby).

FRM RLY WAN
Point to the WAN or Server slot. Options are wan-1 through wan-4.

FRM RLY TS
Can only be set for WAN case.

FRM RLY PORT
Frame Relay port type. Choices are u-dte, u-dce, nni, none.

FRM RLY LMI
LMI Encapsulation. Choices are ansi, ccitt, lmi, none.

FRM RLY T391
The Q.933 DTE polling interval, defining the time to send a status enquiry message.

12-8

IPR

IP Routing

IPR Configuration Screens and Settings

FRM RLY T392
The Q.933 DCE polling interval, defining the time to expect a status enquiry message.

FRM RLY N391
Defines the time interval for the DTE to send a full status enquiry message every N391 polling
cycles.

FRM RLY DCE N392
Defines the number of errors allowed within the last N393 events prior to bringing down the
link.

FRM RLY DTE N392
Defines the number of errors allowed within the last N393 events prior to bringing down the
link.

FRM RLY DCE N393
Used in conjunction with the N392 setting. The Frame Relay link is disabled if there are N392
errors in the last N393 events. DTE events are defined by sending a status enquiry message.
A DCE event is receiving a status enquiry message, or having the T392 timer expire.

FRM RLY DTE N393
Used in conjunction with the N392 setting. The Frame Relay link is disabled if there are N392
errors in the last N393 events. DTE events are defined by sending a status enquiry message.
A DCE event is receiving a status enquiry message, or having the T392 timer expire.

FRM RLY LOOPBACK
Enables or disables loopback on this port. Options are off, line, and local.

IPR

12-9

Model No.
IP Routing

Running
Head
IPR
Configuration
Screens and Settings

12.4.3 Frame Relay PVC Configuration Screen
The Frame Relay PVC Configuration screen, Figure 12-6, configures the Frame Relay PVC
by entering the PVC name, state, and port in which to activate.

Figure 12-6.IPR Frame Relay PVC Configuration Screen
Table 12-5. IPR Frame Relay PVC Configuration Screen Actions
Action
Refresh
Add
dElete
pgUp
pgDn
Main

12-10

Function
Refreshes the current screen
Adds a PVC
Deletes a PVC
Scrolls up one page of information
Scrolls down one page of information
Returns to the Frame Relay Menu screen

IPR

IP Routing

IPR Configuration Screens and Settings

Table 12-6. IPR FR PVC Configuration Option Settings and Defaults
Parameter
STATE
DLCI
IP INTF
RIP
SH

User Options
actv stdby
16-1023
IP Interface name (7 characters long)
none R T R&T
yes no

Default
stdby
16-1023
xxxxxxx
R&T
yes

STATE
This activates or deactivates the PVC. Options are actv (active), and stdby (standby).

DLCI
DLCI number for the current PVC. Options are 16-1023. Do not use 1023 if the LMI TYPE
is set to ‘lmi’

IP INTF
The IP address of this PVC.

IP MASK
The IP Netmask of this PVC.

RIP
Options are T, T R&T, and none. Options are none, R, T, and R&T.

SH
Split Horizon. Options are off or on. The recommended option is on.

IPR

12-11

Running
Head
IPR
Configuration
Screens and Settings

Model No.
IP Routing

12.4.4 Frame Relay Port LMI Screen
The Frame Relay Port LMI screen Figure 12-7, shown below displays the information relating
to the DCE and DTE statistics for IPR port. By pressing the “C”(Clear) key all information
displayed on the current screen will be cleared (erased).

Figure 12-7.IPR Frame Relay Port LMI Screen

12-12

IPR

IP Routing

IPR Configuration Screens and Settings

12.4.5 IP Routing Table Screen
The IP Routing Table is a display only screen. Figure 12-8 will display when pressing “O”
(rOut) from the IP Interface Menu screen. The current IP routes will display. Under the
Interface parameter HOST RT and ETHER are shown. The HOST RT is the CPU host IP node.
And the ETHER is the current route pointing to the Ethernet. If the route is pointing to Frame
Relay, then Interface will display the name of the PVC to which this route points.

Figure 12-8.IPR IP Routing Table Screen
The Stat option from the above screen accesses the Static Routes Configuration Screen.

IPR

12-13

Model No.
IP Routing

Running
Head
IPR
Configuration
Screens and Settings

12.4.6 Static Routes Configuration Screen
The Static Route Configuration screen, Figure 12-9 displays when pressing “S” (Stat) from
the IP Interface Menu screen. The IP Static information can be added by entering a valid IP
net address (e.g. 125.15.0.0). The IP Static routes will always be used in distance, instead of
the dynamic routes. This distance will be advertised in any routing updates for this static route.

Figure 12-9.IPR IP Static Routes Configuration Menu Screen
Table 12-7. IPR IP Static Routes Configuration Table Screen Actions
Action
Refresh
Add
dElete
pgUp
pgDn
Main

12-14

Function
Refreshes the current screen
Adds the selected information on the screen (e.g. IP net, Subnet, etc.)
Deletes the selected information from the screen
Scrolls up through the list of IP static routes
Scrolls down through the list of IP static routes
Returns to the IP Interface Menu screen

IPR

IP Routing

IPR Configuration Screens and Settings

Table 12-8. IPR IP Static Routes Configuration Option Settings and Defaults
Parameter
IP NET
SUBNET
GOTO
DIST

User Options
A valid IP address
A valid subnet mask
A valid IP address
1-15

Default
0.0.0.0.0.0.0.0
0.0.0.0.0.0.0.0
0.0.0.0.0.0.0.0
1-15

IP NET
A destination IP network address. Enter a valid IP address (e.g. 125.15.0.0).

SUBNET
A subnet mask. Enter a valid subnet mask (e.g. 255.255.0.0).

GOTO
IP address of the next IP gateway for this static route. Enter a valid IP address gateway (e.g.
0.0.0.0).

DIST
Administrative distance (in hops) for this static route.

IPR

12-15

Running
Head
IPR
Configuration
Screens and Settings

12-16

Model No.
IP Routing

IPR

Chapter 13
OWAN Port
13.1 Introduction
This chapter provides configuration, and troubleshooting information for the optional Optical
WAN (OWAN) port. This port is labeled on the rear faceplate as OWAN1 and OWAN2.
Connectors above each OWAN port LED indicator carry both the transmit and receive
connections within each fiber. The OWAN port is a single transport facility that allows for a
1+1 protection, auto-switching when a loss of Signal (LOS) or transmitter fail event occurs.
Refer to the IMACS-200 Ordering Guide on page vi of the Product Description Chapter for
information regarding units that contain the Optional OWAN interface.

13.2 OWAN Port
13.2.1 OWAN Port Description
The OWAN port provides two full duplex T1 or E1 compliant DS2 or E2 single-mode optical
ports for optical serial N times 64 kbps interface capability. Only one of the ports can be active,
with the other being a redundant link. Each optical port contains a transmit (Tx) and receive
(Rx) in a single connector along with a status LED. The DS2 or E2 data is extracted from the
encoded optical signal and demultiplexed into four standard DS1 or E1 signals. Optical
connection between two IMACS-200 units is achieved using two bi-directional fibers, one
active and one redundant.
The IMACS-200 OWAN circuit will terminate four DS1 or E1 signals, and multiplex them
into a single DS2 or E2 formatted signal. The IMACS-200 supports various alarm detection
events such as Optical LOS, DS2/E2 OOF, etc. The OWAN port is a 1310 nm single-mode
fiber transmission path up to 20km using only one fiber for both directions. The second
OWAN port is a redundant unit, auto-switching when the transmitter fails, or if a LOS event
occurs. The IMACS-200 will report local as well as remote alarm indications.
The IMACS-200 employs a CMI (Coded Mark Inversion) encoder and decoder to provide the
ability to extract a clock from the data stream and to decode and encode DS2 and E2 overhead
information including T1 remote loopbacks (available in a future release) and protection
switching data. Currently the IMACS-200 does not support the even bit.

OWAN Ports

13-1

Model No.

Running Head

On the transmit signal side, the CMI encoded DS2 or E2 signal is fed into a laser driver from
the CMI encoder. On the receive signal side, the electrical signal is then fed through an digital
multiplexer to the clock recovery circuit to obtain a clean DS2 or E2 signal and reference
clock. The analog multiplexer retransmits to the clock recovery circuit either the received
optical signal or the transmit signal during DS2 or E2 loopback mode. The laser optical output
power is -10dBm, and the receiver system is capable of recovering the signal to -30dBm.
The ports shown below in Figure 13-1 show the two ports on the rear of the box, with the dust
caps removed from OWAN port, ready for optical connectors.

RS-530

Figure 13-1.Optional Redundant OWAN Port

13.2.2 OWAN Alarms
The OWAN port detects and reports the following alarms:

13-2

•

LOS (Loss of Signal) An LOS alarm will be declared after 100 microseconds after the
received optical signal level drops below the operational threshold.

•

OOF (Out Of Frame) Activated by the loss of frame synchronization.

•

EQ FAIL (Optical Transmitter Alarm) Activated when the Laser Diode current exceeds
the threshold, or when optical power level is below the minimum threshold.

•

CLK REC (Clock Recovery Loss of Signal)

•

OPT LOS (Optical Loss of Signal) Raised when the Optical receiver fails to detect a
signal

•

OPT AIS (Optical Alarm Indication Signal) Raised when the Optical unit receives an
Alarm Indication Signal from the far end.

OWAN Ports

13.2.3 OWAN LED Indications
The LEDs included below the port connectors for the OWAN are tri-color LEDs. The LED
can either be off, green, yellow or red. Table 13-1 indicates the color of the LED for the action
indicated.

Table 13-1. LED Status Indicators
Port State

Signal Status

LED Color

Active

Normal

Green

Active

Alarm

Red

RDNT

Normal

Yellow

RDNT

Alarm

Red

STDBY

Any

Dark

13.2.4 OWAN port Cables
The OWAN port utilizes 1310 nm single-mode optical fiber cables with BFOC12.5 (ST)
connectors. Each fiber carries both the transmit and receive signal.

13.3 OWAN port User Screens and Settings
The OWAN ports permit configuration and operation through use of several user screens and
optional settings.

OWAN Ports

13-3

Model No.

Running Head

Figure 13-2.IMACS-200 Main screen
The main login screen shows port statuses for the OWAN ports. Two sections are provided,
separated by a space. The first two status indicators as shown in figure are the Optical transport
medium status indicators. In the illustration, the first port is active, indicated by the ‘a’ on the
screen. The second port shows an ‘r’ for this optical ports redundant status. The individual E1
or T1 ports carried by the optical port are shown grouped together after the space, and in the
above case all ports are in standby, ‘s’ state.

13.3.1 OWAN Functional Notes
Currently the OWAN does not support the SA4 bit in E1 mode. This functionality is planned
for a future release. In addition, T1 does not currently support loopback generate and detect
events, and will also be available in a later release. E1 loopback generation and detect are not
defined, and are not supported. SNMP capability on the OWAN port will be delivered in a later
release as well, and will be fully functional with Online software 1.3.1 and above. Currently
the IMACS-200 is supported in Online version 1.3.0.

13.3.2 OWAN Optical Port Main Screen
You must configure the OWAN port ports for operation. Configuration can be performed from
the OWAN port Main Screen, which is shown in Figure 13-3. To access that screen, highlight
the desired port in the System Main Screen and press .

13-4

OWAN Ports

Figure 13-3.Typical OWAN port Main Screen
The bottom highlighted line on this screen lists several actions you can perform from the
screen. To perform an operation, simply press the uppercase letter associated with the desired
action. For example, to save your option settings, type “s”. Table 13-2 lists the actions you can
perform.

13.4 OWAN Port Main Screen Actions
Table 13-2. OWAN Port Main Screen Actions
Action
Save
Undo
Refresh
sWitch
pOrts
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Switches activity from one port to the other.
Status and change screens for each WAN port contained in the E2 or DS2.
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

STATE
The state is the only user-editable field at this level. Options are to place the port standby
(stby), active (actv) or redundant (rdnt).

OWAN Ports

13-5

Model No.

Running Head

SIG STATUS
This field reflects that status of the optical link. Possible values indicate loss of signal (los),
normal (norm)

SIGTYPE
This read-only field indicates the type of signaling employed on the optical link. possible
values are ds2 and e2.

13.4.1 Port Settings for OWAN
Figure 13-4 shows the screen displaying the four DS1 or E1 ports and their respective settings.

Figure 13-4.Typical Settings for the T1 OWAN Ports
Table 13-3. OWAN Port Setting Options and Defaults for T1
Parameter
STATE
Format
Line LB
Local LB
LB GEN
LB DET

13-6

User Options
stdby actv
d4
esf
off on
off on
off llb plb
off on
w/to

Default
stdby
esf
off
off
off
off

OWAN Ports

Format
The format setting determines the type of framing to be used on the individual port, either d4
or esf.

Line LB
The Line Loopback setting controls looping of the full T1 line back to the network. When on,
this setting allows end-to-end testing of the line.

LOCAL LB
The LOCAL Loopback (LOCAL LB) option activates a loopback on the selected port. Choose
the on setting to loop the outgoing data from the external TPE device back to the TPE receiver.
This loopback allows you to check the local cabling and most of the optical circuitry in the
OWAN port. It also disconnects the incoming data from the far end.

LB GEN
Currently the loopback generate function has not been implemented. When done, the loopback
generation field enables the OWAN to generate a loopback request when set to on. Otions that
will be supported are the plb (payload loopback) and llb (line loopback) when is esf format.
For d4 format, the values will be loop-up and loop-dn. No loopback and the default are set to
off.

LB DET
Currently the loopback detect function has not been implemented. When done, the loopback
detect field enables the OWAN to detect a loopback code request when set to on. It also
provides a with time out w/to option, which will detect and enter into a loopback state, but
drop the loopback after 10 minutes.

OWAN Ports

13-7

Model No.

Running Head

Figure 13-5.Typical Settings for the E1 OWAN Ports
Table 13-4. OWAN Port Setting Options and Defaults for E1
Parameter
STATE
Frame
TS16
EVEN BIT
Line LB
Local LB

User Options
stdby actv
crc d-frm
cas ccs nos
norm inv
off on
off on

Default
stdby
crc
cas
norm
off
off

Frame
The frame setting determines the type of framing to be used on the individual port, either crc
or d-frm.

13-8

OWAN Ports

TS16
The TS 16 setting changes the signaling usage of slot 16 for cas (Channel Associated
Signaling), ccs (Common Channel Signaling) or nos (No Signaling). In the first two options,
time slot 16 is used to carry signaling information for all channels on the E1. If nos is selected,
then time slot 16 becomes available for user data.

EVEN BIT
Setting the Even Bit parameter for inv will cause the system to invert every even bit in every
DS0 time slot. This setting should only be used if the entire E1 stream is composed of PCM
voice, to ensure minimum-ones density.

LINE LB
The Line Loopback setting controls looping of the full E1 line back to the network. When on,
this setting allows end-to-end testing of the line.

LOCAL LB
The Loopback setting controls looping of the full E1 line back to the PCM bus. The options
are off and on. When on, this setting allows testing of local equipment. The system generates
a "Keep Alive–Type 1" pattern on the E1 line.

13.5 OPTIC WAN Port Screen Actions
Table 13-5. OPTIC WAN Port Screen Actions
Action
Save
Undo
Refresh
Xcon
Test
Main

OWAN Ports

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Displays all current cross-connects assigned to the selected port
Takes the user to the Test screen, as described below.
Returns to the System Main Screen. If changes are made to settings and not
saved, you will be prompted to save or lose changes.

13-9

Model No.

Running Head

13.5.1 Cross-Connect (XCON) Screen
The Cross-Connect (Xcon) command in the OWAN port screen allows you to view the time
slot or DS0 assignments that have been set up in the system. Highlight the OWAN on the card
and press the “x” (Xcon) to select Cross-Connect. Either an E1 screen (Figure 13-6) or a T1
screen (Figure 13-7) will appear, depending upon the OWAN type selected and highlighted.
This is a display-only screen.

Figure 13-6.XCON Screen for E1

13-10

OWAN Ports

Figure 13-7.XCON Screen for T1

13.5.2 Test Screen
Pressing “t” (Test command) in the OWAN Port Screen brings up the screen shown in Figure
13-8. From this screen, you can create test situations between OWAN interfaces or between a
single OWAN card and data test equipment at a remote site. Table 13-6 lists the actions you
can perform from the bottom line of this screen. Table 13-7 lists the settings controlled on this
screen along with their possible values.

OWAN Ports

13-11

Model No.

Running Head

Figure 13-8.OWAN Port Test Screen
Table 13-6. Test Screen Actions
Action
Save
Undo
Refresh
Insert Err
Clear
Main

Function
Saves changes to settings.
Returns all settings to the last saved state.
Updates certain time-related information fields that are not automatically
updated (i.e., performance and test data).
Allows you to manually insert a single bit error into the data signal. This does
not cause a CRC error.
Clears the Test Screen and resets all counters to zero.
Returns to the WAN Card Main Screen. If changes are made to settings and
not saved, you will be prompted to save or abandon those changes.

Table 13-7. OWAN Port Test Screen Options
Parameter
BERT
SYNC
BE
ES
SES
CSES
OSS
BER

13-12

User Options
off mark space 1:1 1:7 3:24
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options
information only–no user options

qrss prb11 prb15 prb20

Default
off

OWAN Ports

ELAP
LB ST

information only–no user options
information only–no user options

SYNC
The Synchronization (SYNC) field tells you if the integrated BERT has achieved
synchronization either with itself via a remote loopback or with the remote test equipment.
Since this is an information only field, there are no user selectable parameters.

BE
The Bit Error (BE) field shows the total number of bit errors logged. Since this is an
information only field, there are no user selectable parameters.

ES
The Errored Seconds (ES) field shows the total number of seconds in which any errors were
detected. Since this is an information only field, there are no user selectable parameters.

SES
The Severely Errored Seconds (SES) field shows the total number of seconds in which the bit
error rate exceeded one bit per thousand (1 x 10-3). Since this is an information only field, there
are no user selectable parameters.

CSES
The Consecutive Severely Errored Seconds (CSES) field is triggered by the occurrence of ten
consecutive Severely Errored Seconds. Once triggered, the CSES field will increment (by
one) for each elapsed second until the system logs ten consecutive non-Severely Errored
Seconds. Since this is an information only field, there are no user selectable parameters.

OWAN Ports

13-13

Running Head

Model No.

OSS
The Out of Synchronization Seconds (OSS) field shows the number of seconds that the WAN
BERT has been out of synchronization. Since this is an information only field, there are no
user selectable parameters.

BER
The Bit Error Rate (BER) field shows the rate at which errors are being logged. The system
calculates BER by dividing the number of bit errors (BE) by the total number of bits
transmitted during the test. Since this is an information only field, there are no user selectable
parameters.

ELAP
The Elapsed time setting shows the running tally of the total number of seconds during the
test. Since this is an information only field, there are no user selectable parameters.

LB ST
The Loopback State setting changes when a WAN unit is both present and operational. This
includes loopbacks caused by commands from remote devices as well as loopbacks caused by
local settings. The field will show payld (payload loopback) when the entire signal, excluding
the framing bit, is looped back. The field will show line (line loopback) when the entire signal
is looped back towards the network. This field will show local (local loopback) when the
entire signal is looped back to the ports own transmitter. It will show none if the OWAN port
is not in loopback.

13-14

OWAN Ports

System Testing and Diagnostics

Introduction

Chapter 14
System Testing and Diagnostics
14.1 Introduction
This chapter describes the IMACS-200 comprehensive set of built-in diagnostic tools that
enable the operator to remotely troubleshoot and resolve problems. Throughout the user port
chapters in this system reference guide are brief explanations of system testing and problem
solving. However this chapter was designed to provide a “full picture” of what this Integrated
Access System is capable of providing.

14.2 Integral Test Capabilities
The Integrated Access System provides diagnostics capabilities to resolve problems. There
are system-generated alarm messages described in Chapter 4. System Configuration and
Operation, the integral diagnostics capabilities of this system include Bit Error Rate Testers
(BERTs) on data ports, tone generators on analog voice ports, the ability to manipulate the
analog leads and the digital signaling bits of voice circuits.
The ability to initiate loopbacks at various points in a circuit, coupled with the ability to
generate and receive test signals and to collect performance and error information, enable the
operator to systematically troubleshoot circuit problems. It allows the operator to determine if
the problem resides in the system. Since all of these diagnostic tools can be operated from a
remote VT100 terminal, troubleshooting begins immediately without dispatching an on-site
technician.

Diagnostics

14-1

Running
User
port Head
Diagnostics

Model No.
System Testing and Diagnostics

14.3 User port Diagnostics
14.3.1 WAN Diagnostics
Software-initiated diagnostics on T1 WAN aggregates involve looping the WAN signal
toward the network (line loopback) or the system (local loopback) and placing any one of the
DS0 channels that make up the WAN signal in local loopback. The table below list detailed
information on the diagnostic capabilities of the WAN ports.
Loopbacks
On-port loopbacks
T1 Line loopback Toward Network
T1 Local loopback Toward User
DS0 Channel loopback Toward Network
DS0 Channel loopback Toward User

Yes
Yes
No
Yes

In-Band loopback Code Generation
Industry-Standard T1 Loop-Up Code
Industry-Standard T1 Loop-Down Code

N/A
N/A

In-Band loopback Code Detection
Industry-Standard T1 Loop-Up Code
Industry-Standard T1 Loop-Down Code

N/A
N/A

Bit Error Rate Tester (BERT)
Patterns Supported
All 1s
All 0s
1:1
1:7
511
2047
3:24
QRSS

Yes
Yes
Yes
Yes
No
No
Yes
Yes

BERT Direction
Toward User
Toward Network

No
Yes

Statistics Gathered by BERT
Bit Errors (BE)
Errored Seconds (ES)
Severely Errored Seconds (SES)
Consecutive Severely Errored Seconds
Out of Synchronization Seconds (OOS)
Bit Error Rate (BER)
Elapsed Seconds (ELAP)

14-2

Yes
Yes
Yes
Yes
Yes
Yes
Yes

Diagnostics

System Testing and Diagnostics

User port Diagnostics

14.3.2 Voice Diagnostics
The software-initiated diagnostics supported are voice ports include the setting of both analog
and digital loopbacks toward the network and the generation of Quiet Tone and a Digital
MilliWatt signal on a port-by-port basis. The operator can also monitor and set the state of the
analog leads of any FXS or E&M port. They can set and monitor the state of the ABCD
signaling bits of the digitized voice signal. In cross-connect system, test functionality also
includes the ability to generate test tones (300Hz, 1 kHz and 3 kHz) and transmit those toward
the user side or the network side of the system. The table below shows detailed information
on the diagnostic capabilities of the Voice ports.
4-wire E&M 2-wire FXS
On-port loopbacks
Analog Toward Network
Digital Toward Network

Yes
Yes

Yes
Yes
Yes*
Yes

Yes

Yes*
Yes*
Yes*
Yes
Yes

Yes
Yes

Signaling Manipulation
Set Status of Analog Interface Leads
Set Transmit ABCD Signaling Bits
Set Receive ABCD Signaling Bits
Monitor Status of Analog Interface
Leads
Monitor Status of Transmit ABCD
Signaling Bits
Monitor Status of Receive ABCD
Signaling Bits

Tone Generation
Tone Supported
300 Hz
1 kHz
3 kHz
Quiet Tone
Digital MilliWatt

Tone Direction
Toward User
Toward Network

Diagnostics

14-3

Model No.
System Testing and Diagnostics

Runningwith
Head
.System
Cross-Connect Option

14.4

System with Cross-Connect Option

14.4.1 Circuit Diagnostics
In systems equipped with Cross-Connect CPUs, the cross-connect element adds another level
of testing within the node and enhances the system’s diagnostic capabilities. The operator may
also monitor and set the state of the Transmit and Receive ABCD signaling bits of a digitized
voice circuit that is cross-connected between WANs. The table below shows detailed
information on the diagnostic capabilities of the circuits.
Voice
without
Signaling

Voice with
Signaling

Single Data
Super-rate
DS0
Data
(64 Kbps) (N x 64 Kbps)

Loopbacks
Local loopbacks
Toward WAN1
Toward WAN2

Yes
Yes

Yes
Yes
Yes
Yes
Yes

Yes
Yes

Yes
Yes
Yes

Yes
Yes

Bit Error Rate Tester (BERT)
Patterns Supported
All 1s
All 0s
1:1
1:7
M_OOS

BERT Direction
Toward WAN1
Toward WAN2

Tones Supported
300 Hz
1 kHz
3 kHz

Tone Direction
Toward WAN1
Toward WAN2

14-4

Diagnostics

System Testing and Diagnostics

Benefits of Built-In Diagnostics

Voice
without
Signaling

Voice with
Signaling

Super-rate
Single Data
Data
DS0
(64 Kbps) (N x 64 Kbps)

Signaling Manipulation
Toward WAN 1
Set Transmit ABCD Signaling Bits
Monitor Status of Transmit ABCD Signaling Bits
Monitor Status of Receive ABCD Signaling Bits

N/A
N/A
N/A

Yes
Yes
Yes

N/A
N/A
N/A

Yes
Yes
Yes

N/A
N/A
N/A

Toward WAN 2
Set Transmit ABCD Signaling Bits
Monitor Status of Transmit ABCD Signaling Bits
Monitor Status of Receive ABCD Signaling Bits

14.5 Benefits of Built-In Diagnostics
The real power of the integral diagnostics of the Integrated Access System can be fully
appreciated when the individual diagnostic tools are applied to everyday troubleshooting such
as the one illustrated in the following example.
The environment shown in Figure 14-1 consists of two integrated access devices connected
by a T1 line. These are referred to as the Local IAD and the Remote IAD respectively. At the
local IAD, the DTE equipment is a co-located device providing a 56 Kpbs V.35 interface that
is connected to a V.35 HSU port. At the Remote IAD, an OCU-DP port that interfaces to the
4-wire DDS tail-circuit extends the 56 Kbps to a third location. Consequently, the Remote
IAD is equipped with an OCU-DP port that interfaces to the 4-wire DDS tail-circuit. At the
third location, the DDS circuit terminates in a generic, third-party DSU/CSU which in turn
provides a 56 Kbps V.35 interface to the remote DTE device.
The system operator can use the diagnostic tool kit to systematically troubleshoot the problem
on an end-to-end basis and to identify the faulty sub-system, even if it is external to the
Integrated Access System. One way to systematically troubleshoot the problem is illustrated
in Figure 14-1. While there are many other approaches, in general, the procedure to follow is
to combine loopbacks that are generated either through software commands or via
industry-standard loop-up codes with Bit Error Rate Tests (BERTs) for data circuits, or test
tones for voice circuits. In the Integrated Access System, all of those tools are available as
integral features of the system and of the various ports. Each test determines if a specific
sub-system is operating properly. In our example, after each test, the sub-systems that are
shown to be functioning properly are shaded in gray.
In Figure 14-1, the local HSU port is put in Local loopback and a BERT test is run from the
DTE. If successful, in Figure 14-1, diagnostics-3 the loopback sequence is advanced by
putting the T1 link of the Local Integrated Access System in Local loopback and running
BERT test again. This also tests the cross-connect element of the local Integrated Access
System if there is one present.

Diagnostics

14-5

RunningofHead
Benefits
Built-In Diagnostics

Model No.
System Testing and Diagnostics

In Figure 14-1, diagnostics 4, the E1 link of the remote Integrated Access System is
configured in Line Loopback. Alternatively, a loop up code can be sent from the local
Integrated Access System to put the E1 link of the remote Integrated Access System in Line
loopback. This process is repeated until the remote DTE is put in network loopback and tested
as shown in Figure 14-2, diagnostics 8.

Figure 14-1.Built-In Diagnostics Example (Diagnostics 1 - 4)

14-6

Diagnostics

System Testing and Diagnostics

Benefits of Built-In Diagnostics

Figure 14-2.Built-In Diagnostics Example (Diagnostics 5- 9)

Diagnostics

14-7

RunningofHead
Benefits
Built-In Diagnostics

14-8

Model No.
System Testing and Diagnostics

Diagnostics

Appendix A
System Standards and Specifications
A.1

Introduction
This appendix lists the Integrated Access System IMACS-200 standards, specifications,
compliance, power sources and pre-installation settings for the user ports.

A.2

Standards Compatibility
The following is a comprehensive list of standards that the System complies to:
1) Full IEEE 1613 testing on the box, including temperature range (a) as stated in section
4.1.1.
(2) Safety:

•

United States - UL 60950-1

•

Canada - CSA C2.22 No. 60950-1

•

European Union - EN 60950-1

•

International / CB Scheme - IEC 60950-1 3rd Edition

(3) EMC:
•

United States - FCC Part 15 Class A

•

Canada - ICES-03

•

European Union/CE Mark - ETSI EN 300 386:2001 which includes:

•

EN 55022 Class A

•

EN 6100-4-2

•

EN 6100-4-3

•

EN 6100-4-4

•

EN 6100-4-5

•

EN 6100-4-6

•

EN 6100-3-2 - N/A for DC

•

EN 6100-3-3 - N/A for DC

System Standards and Specifications

A-1

Model No.

Running Head

A.3

Chassis Standards

A.3.1 Dimensions
Model
Number

Chassis Description

Height
in

Steel Chassis , Dual-Powered,
OHSU.

IMACS-200

Width

3.47

8.8

Depth

9.48

24.1

in
17.31

Weight

lb.

44.0

10.0

kg
4.5

A.3.2 Chassis Power
Chassis Description
Steel Chassis , Dual-Powered,
OHSU.

Model
Number

AC Power (50-60 Hz)

IMACS200

115 VAC
104 to 135
VAC

110 VAC

DC Power

220 VAC

-48 VDC 125 VDC

175 VAC
to 264
VAC

-40 VDC
to -60
VDC

Power
Consumption
Watts
125 (typical)
500 W
(maximum)

A.3.3 Environment
A.3.3.1

Ambient Temperature and Humidity
Ambient temperature and humidity as per IEEE 1613 - 2003 Section 4.1.
Temperature o C / o F\
Operate
-40oC

70oC

to
-40oF to 158oF

Storage
oC

85oC

-50 to
-58oFto 185oF

Rate of temperature change

Humidity
Operate
55 to 95% relative
humidity, non
condensing
30 o C/hr (54 o F/hr)

Ambient refers to conditions at a location 30 cm (11.81 inches) from the surface of the unit
enclosue while in operation.

A.3.3.2

Airflow
The IMACS-200 includes two fans. The fans are temperature controlled to automatically turn
on and off as needed.

A-2

System Standards and Specifications

A.3.4 Equipment Handling
A.3.4.1

Packaged Equipment Shock Criteria
As per IEEE STD 1613 - 2003 section 10 Table 15. 1000 mm fall.

A.3.4.2

Unpackaged Equipment Shock Criteria
As per IEEE STD 1613 - 2003 section 10 Table 15. 100 mm fall.

A.3.5 Office Vibration and Transportation Vibration
A.3.5.1

Office Vibration
As per IEEE STD 1613 - 2003 section 10 Table 14. Severity class V.S.3.

A.3.5.2

Transportation Vibration
As per IEEE STD 1613 - 2003 section 10 Table 14. Severity class V.S.4.

A.3.6 Mounting
A.3.6.1

Types
EIA 19” (482 mm) Standard Open Rack or Enclosed Cabinet. WECO 23” Standard Open
Rack or Enclosed Cabinet. Table Mount or Rack Mount.

Clearance
Chassis
Front
Back
Top
Bottom

System Standards and Specifications

CHAS
10” (25 cm)
10” (25 cm)
2” (5 cm)
2: (5 cm)

A-3

Model No.

Running Head

A.4

Port Specifications

A.4.1 WAN port Specifications

WAN ports
Physical
Performance and Test Options
Loopbacks
T1

Line, Local, Loopback Generation and Detection, (ESF only)
National Bit Supporting (G.704)

T1 Interface
Bit Rate and Tolerance
Number of T1 WAN ports
Electrical Interface
Line Coding
Frame Format
D4 Framing
ESF Framing
Voice Channel Signaling
Error Detection
Frame Format
ESF
D4
Alarm Indication
Line Length
Power Levels
Output Jitter
Input Jitter and Wander

1.544 Mbps + 32 ppm
4
Per ANSI T1.102/T1.403, DSX-1 1001/2 balanced
Software selectable AMI or B8ZS
Software selectable D4 or ESF
Normal Superframe
Extended Superframe
AT&T PUB 43801, AT&T 62411, ITU-T Q.421, Q.422 using
robbed-bit method.
Error Scheme
CRC-6, Controlled Slip, Out of Frame
BiPolar Violation, Controlled Slip, Out of Frame
As per Bellcore TR-TSY-000191
Software Slectable: Adjustable line build out (LBO) settings for 110,
220, 330, 440, 550, 660 feet and 0dB, 7.5dB, 15dB and 22.5dB
Complies with ANSI T1.403 and ITU-T G.703
Complies with ITU-T G.824
Complies with ITU-T G.824

Standards Compatibility
AT&T

TR43801
TR54016
TR62411

Digital Channel Bank Requirements and Objectives
Requirements for Interfacing Digital Terminal Equipment to
Service Employing the Extended Superframe Format
Accunet 1.5 Service, Description and Interface Specifications

Bellcore
ANSI

ITU-T

TR-TSY-000191
T1.101
T1.107
T1.403
T1.408
G.703
G.704
G.824
Q.421
Q.422

A-4

Alarm Indication Signal, Requirements and Objectives
Synchronization Interface Standards for Digital Networks
Digital Hierarchy - Formats Specifications
ISDN, Network-to-Customer Installation -DS1 Metallic I/F
ISDN Primary Rate
Physical/Electrical Characteristics of Hierarchical Digital I/F
Synchronous Frame Structure Used At Primary and Secondary
Hierarchical Levels
The Control of Jitter and Wander Digital which are based on
the 1544 Kbits/sec Hierarchy.
Digital line signaling code
Clauses for exchange line signaling equipment

System Standards and Specifications

A.4.2 FXS port Specifications

FXS ports IMACS-200-FXS
Number of Ports
IMACS-200-FXS

4 ports

Physical Interface
Connector

1 female 50-pin telco connector

Transmission Performance
Performance

Exceeds requirements of ITU-T Rec. G.713

Signaling Modes
Signaling Modes

Foreign Exchange Station (FXS) Loop Start and Private

Line

Automatic Ringdown (PLAR)
Termination Impedance
IMACS-200-FXS

600 Ohms with 2.16 µF

VF Transmission Characteristics
Nominal Transmit TLP
Nominal Receive TLP
PCM Encoding

Defaults to +2.0 dB. Can be set from -6.5 dB to +9.0 dB
Defaults to -2.0 dB. Can be set from -9.0 dB to +3.0 dB
Software selectable on a per port basis

Attenuation Versus Frequency Relative to 1 kHz with 0 dBm0 input
Frequency
Transmit (A to D)
Receive (D to A)
200 Hz
-0.25 to +3.0 dB
-0.25 to +2.0 dB
300 to 3000 Hz
-0.25 to +0.5 dB
-0.25 to +0.5 dB
3200 Hz
0.25 to +0.75 dB
-0.25 to +0.75 dB
3400 Hz
-0.25 to +1.5 dB
-0.25 to +1.5 dB
Return Loss (at 1 kHz)
>28 dB
Transhybrid Loss
34dB
Idle Channel Noise (rcv and xmt)
< -65 dBm0p Typ < -70 dBmop or < 20 dBrnc0
Interchannel Crosstalk
Typ < -75 dBm0 using 7 adjacent channels being disturbed with a signal
of 0.0 dBm0
Total Distortion including Quantization (Signal to Distortion Ratio) Input Frequencies 1004-1020 Hz
Input Level
Rcv or Xmt
Overall
>33 dB
-30 to 0 dBm0
>35 dB
>27 dB
-40 dBm0
>29 dB
-45 dBm0
>25dB
>22 dB
Absolute group delay
< 750 microseconds
Group Delay Distortion vs. frequency
within boundaries of ITU-T Rec. G.713 Figure 2
Longitudinal Balance
Nom > 46 dB
Typ > 50 dB
Variation of Gain with Input Level
within boundaries of ITU-T Rec. G.713 Figure 7

System Standards and Specifications

A-5

Model No.

Running Head

A.4.3 E&M port Specifications

E&M ports 4-Wire
Physical Interface 4-Wire
Number of Ports
Connectors

4
4 RJ45 telco connector

Transmission Performance
Performance

Exceeds requirements of ITU-T G.712 (4-wire))

Signaling
Signaling Types
Signal Modes

Switch selectable - all four ports are the same
Normal (toward user) and Trunk/Tandem (toward CO)
Software selectable per port
Transmit Only (to), Type I, II, IV and V.

VF Transmission Characteristics
Nominal Transmit TLP
Nominal Receive TLP
Termination Impedance
PCM Encoding

Software selectable
-16.5 dB to +7.5 dB in steps of 0.1 dB
Software selectable
-16.3 dB to +7.5 dB in steps of 0.1 dB
with 2.16 µf capacitor in series 600 Ohms
Software selectable
µ-law
A-law

Attenuation Versus Frequency as per AT&T TR43801 - Relative to 1 kHz with 0 dBm0 input
Frequency
200 Hz
300 to 3000 Hz
3200 Hz
3400 Hz
Return Loss

Transmit (A to D)
Receive (D to A)
-0.25 to +3.0 dB
-0.25 to +2.0 dB
-0.25 to +0.5 dB
-0.25 to +0.5 dB
0.25 to +0.75 dB
-0.25 to +0.75 dB
-0.25 to +1.5 dB
-0.25 to +1.5 dB
Against 600 Ohms, in series with 2.6 µf with additional 25 Ohms
resistor between the channel unit and the return loss measurement set.
4-wire
1kHz 28dB min.
300 to 3000 Hz 23dB min.
4W Return Loss (at 1 kHz)
>20dB Typ > 27dB
Relative Transhybrid Loss
Against 600 Ohms, in series with 2.16 µf termination.
Idle Channel Noise (rcv and xmt)
< -65Bm0p. Typically < -70 dBm0p or < 20 dBrnc0 <20dBBrnc0
Interchannel Crosstalk
Typ < -75 dBm0 using 7 adjacent channels being distributed with a
signal of 0.0 dBm0.
Total Distortion including Quantization (Signal to Distortion Ratio) Input Frequencies 1004-1020 Hz
Input Level
Rcv or Xmt
Overall
>33.9 dB
-30 to 0 dBm0
>35 dB
>27.6 dB
-40 dBm0
>20 dB
>23 dB
-45 dBm0
>25dB
Absolute group delay
< 600 microseconds
Group Delay Distortion vs. frequency
within boundaries of ITU-T Rec. G.712 Figure 2
Longitudinal Balance
>46 dB Typ > 50 dB
Variation of Gain with Input Level
within boundaries of ITU-T Rec. G.713 Figure 7 (2 wire)
within boundaries of ITU-T Rec. G.712 Figure 7 (4 wire)
Typical gain variation is within + 0.25 dB from +3 to -50 dBm0

Diagnostic Capabilities

A-6

System Standards and Specifications

Diagnostics

Analog loopback
Digital loopback
“Make Busy” signaling control

Standards Compatibility
Bell System
ITU-T

System Standards and Specifications

TR43801
Recommendations G.711, G.712 and G.714

A-7

Model No.

Running Head

A.4.4 SRU port Specifications
SRU Ports
Number of Ports
Physical Interface
Electrical Interface
Operational Interface
Interface Settings
Sub-rate Framing Format
Sub-rate Time slot Number

5
female 8-pin RJ-48
RS232C, ITU-T V.28
DCE - Full Duplex
Asynchronous, Synchronous
DS0-A, DS0-B with 5 divisions per DS0
1 through 5 depending on Sub-rate Framing Format

Synchronous Data
Format
Transmit Clocking
Speeds

Transparent
Software selectable per port; internal or external
2.4, 4.8, 9.6, 19.2, 28.8 and 38.4 kbps

Asynchronous Data
Format
Stop Bits
Data Bits
Parity
Speeds

Proprietary
Software selectable per port; 1 or 2
Software selectable per port; 5, 6, 7 or 8
Software selectable per port; none, odd, even, space or mark
.3, 1.2, 2.4, 4.8, 9.6, 14.4, 19.2, 28.8 and 38.4 kbps

Signaling
DSR
CTS
CTS delay
RLSD

Tied to DTR
Software selectable per port; on, off (tied to RTS)
Software selectable per port; immediate, 30, 60 or 100 ms
Software selectable per port; permanently on, follows remote RTS (drop on receipt
of IDLE or CGA RED)

Diagnostics & Alarms
BERT
Direction
Data Patterns

Integral
Toward DTE or toward Network
Off, mark, space, 1:1, 1:7, 511, 2047 zeros

Loopbacks
Local

Toward DTE or toward Network

Standards Compatibility
AT&T

TR 54075

ITU-T

V.28
X.50 Division 3

V.14
EIA

A-8

RS 232

Subrate Data Multiplexing - A Service of DATAPHONE
Digital Service
Electrical characteristics for unbalanced double-current
interchange circuits
Fundamental Parameters of a Multiplexing Scheme for the
International Interface Between Synchronous Data Networks
(note: does not support 600 bps data)
Transmission of Start-Stop Characters over Synchronous
Bearer Channels (using async to sync converters)
Interface Between DTE and DCE Employing Serial Binary
Data Interchange

System Standards and Specifications

A.4.5 HSU Port Specifications
Number of
Data Ports

Physical Interfaces

2 female 25-pin DB25 D-connectors

Electrical Interfaces
ITU-T V.35

Data Speeds

N x 56k and N x 64k, where N = 1 to 24 (up to 1536 kbps) - Software Configurable by
DS0

Data Format
Data Protocol
Transmit Clock per Port
Clock Polarity per Port
Data Polarity per Port

Synchronous
Transparent
Internal or External (software selectable)
Normal or inverted (software selectable)
Normal or inverted (software selectable)

Diagnostics
RTS/CTS Delay: per
Port
RTS Handshake per
Port
BER Test per Port
Local Loopback per
Port
Performance Statistics

0, 30, 60 or 100 ms (software selectable by port)
Permanent, local, ignore, local (software selectable by port)
Active or inactive
BER Test Patterns All Marks, All Spaces, 1:1, 1:7, QRSS, 511, 2047
None, towards DTE, towards the network
Errored Seconds, Unavailable Second, Severely Errored Second, Burst Errored Second, Loss of
Packet Seconds, Loss of Frame Count

Standards Compatibility
ITU-T

V.35
V.11 (10/96)
V.28

EIA

Recommendations
RS-530

System Standards and Specifications

Data Transmission of 48 kbps using 60-108 kHz Group Bank
Circuits.
Electrical characteristics for balanced double-current interchange
circuits operating at data signaling rates up to 10 Mbit/s.
Electrical characteristics for unbalanced double-current
interchange circuits.
High Speed 25 Position Interface for Data Terminal Equipment,
Including Alternative 25 Position Connector.

A-9

Model No.

Running Head

A.4.6 OHSU port Specifications
Number of
Data Ports
2

Physical Interfaces
4 ST connectors

Optical Interfaces
IEEE C37.94

Data Speeds

N x 64k, where N = 1 to 12 - Software Configurable

Data Format
Data Protocol
Transmit Clock per Port

Synchronous
Transparent
Internal

Standards Compatibility
IEEE C37.94

A-10

System Standards and Specifications

IPR Server Specifications

1.5

IPR Server Specifications

IPR
Input/Output
LAN Traffic I/O
Frame Relay Traffic I/O
Frame Relay Port Types
MTU
No. of PVCs
Routing Table
ARP Table
Management
Connectivity
LMI Options
Information Rates
DCE Parameters
DTE Parameters
IP Subnet Topologies

System Standards and Specifications

2 maximum (1 10-BaseT Ethernet, 1Frame Relay Wide-Area Network)
10BaseT
T1, E1,
UNI DCE, UNI DTE, NNI
1500 bytes
25
100 entries (up to 20 static entries)
100 entries (LRU)
RFC 1315 DTE MIB, Frame Relay Service MIB, SNMP Alarm Traps
per RFC 1215
SNMP or TELNET
Q.933 Annex A, ANSI T1.617 Annex D, LMI (Gang of 4), None
CIR = 0 to 2048 Kb/s, Bc = 0 to 2048 Kb, Be = 0 to 2048 Kb
N392, T392, N393 all configurable
N392, T391, N393, N391 all configurable
Point-to-point.

A-11

Running
Head
IPR
Server
Specifications

A-12

Model No.

System Standards and Specifications

Appendix B
Error Messages
B.1

Introduction
This appendix lists the IMACS-200 error messages. One of these messages may appear at the
bottom of the screen when you enter a command, indicating that the system did not perform
the requested action. This condition may have been caused by an operator error, absence of a
port in the system, or other condition. If an error message appears, take the appropriate
corrective action. For convenience, the system error messages are listed alphabetically.

A name must be assigned to Circuit ID field.
You must enter a name for the circuit before attempting this operation. Go to the Circuit ID
field, type the desired name, and save it.

All blank prt report.
You chose the empty option setting for all four elements of the Print Alarm on the Interface
port. This combination of settings is invalid and cannot be saved. Choose the proper option
settings for these elements.

ASYNC/5 databits must have 2 stop or parity.
You have assigned an SRU port to an asynchronous circuit with 5 data bits, one stop bit, and
no parity. This is an invalid combination of option settings. Either choose two (2) stop bits, or
enable parity on that port.

Both WAN’s cannot be in test mode.
You cannot use the test option on both sides of a cross-connect simultaneously.

Cannot be STDBY while BERT test is running.
You cannot change a port from the actv (active) state to the stdby (standby) state while the Bit
Error Rate Tester (BERT) is running. You must end the BERT test first.

Error Messages

B-1

Model No.

Running Head

Cannot define any more XCON circuits.
The maximum number of cross-connect circuits is 99.

Can NOT delete circuit while test is active.
You must end the test in progress before deleting the circuit.

Cannot do it in Viewer mode.
You are logged in under the Viewer password, but that level of access does not allow you to
perform the desired operation. Log out of the system, log back in under the Operator or
Manager password, and repeat the command. Or, perform an operation that is permitted by the
Viewer access level.

Cannot have REMOTE and LOCAL loopbacks.
You cannot place the port in both a local loopback and a remote loopback simultaneously.

Cannot insert errors without BERT running.
You must start BERT testing before inserting bit errors.

Cannot switch non-compatible WANs.
The current WAN port arrangement does not support redundant WAN switching.

Cannot switch to a non-operational WAN.
You cannot switch to the selected WAN port because it is out of service.

Cannot use the same TS on different WAN.
You cannot assign an SRU port to the same time slot on different WAN ports.

Card is not available.
You cannot test the port because it is faulty.

B-2

Error Messages

Channel test is available from WAN XCON screen.
To test a cross-connected voice circuit, go to the Cross-Connect Screen.

Circuit name must be entered.
You must enter a name for the cross-connect circuit before attempting this command.

Config. changes must be made from primary WAN.
You cannot make configuration changes to a redundant WAN port. This is allowed only on
primary WAN ports.

Duplicate prt report element.
You have asked the Print Alarms option to print the same element twice.

Empty field is not allowed.
You cannot assign a blank password on the CPU port Main Screen. Always enter
alphanumeric characters.

ENETBRI/PRI port is not installed or config.
An Ethernet BRI/PRI port is not present in the system, and is not configured.

ERROR found in the RESTORE file.
The system restore failed due to a software error. Repeat the restore, and call Technical
Support if this message reappears.

Field can NOT be MODIFIED.
You cannot edit this field.

Group already taken.
This group is already assigned.

Error Messages

B-3

Running Head

Model No.

Illegal address and mask combination.
The combination of IP address and mask numbers you chose is invalid. Change either the IP
address or mask number.

Illegal IP Mask.
The IP netmask number you chose is invalid.

Invalid character in Node Id.
The only valid characters for a Node ID are alphanumeric characters and the underscore.

Invalid date/time format.
You have entered an invalid date or time.

Invalid endpoint name.
The endpoint name you chose is invalid.

Invalid IP address.
The IP address you chose is invalid.

Invalid IP netmask.
The IP netmask you chose is invalid.

Invalid password for this command.
You cannot use the debug command from the System Test and Debug Screen without the
proper password authorization.

Invalid secondary clock format.
You cannot assign an external clock source as the secondary system clock.

B-4

Error Messages

Invalid Timeslot.
When assigning time slots to user voice and data ports, you must choose time slot number 1
to 24 for a WAN T1 port.

Invalid user name.
User name must be a combination of alpha-numeric characters. Control characters, spaces,
and special characters are not allowed.

Invalid WAN/SRVR.
You cannot assign services to an unavailable WAN or Server port.

IP Address must be unique.
The IP address is already assigned.

Local LB & Test Pattern can’t be ON together.
You cannot perform a loopback with a test pattern applied, and you cannot apply a test pattern
if a loopback is active.

Modification can’t be saved while test is active.
You cannot make changes in this screen while a test is in progress.

Must have OOS status.
You cannot delete a port that has not been removed from the system. Remove the port first.

No changes while BERT is running.
You cannot change the port configuration while Bit Error Rate Testing is active. Turn the test
mode off before making your changes.

No historical alarms.
You have selected the History command in the Alarm Screen, but no alarms exist in that log.

Error Messages

B-5

Running Head

Model No.

No more than two WANs in BERT test are allowed.
You can place only two WAN ports in the BERT test mode simultaneously.

No timeslot(s) specified.
You cannot activate a user port that doesn’t have any WAN time slots assigned to it.

Not implemented yet.
You cannot use a feature or function that is not yet released. This message normally appears
on software versions for beta testing.

Not supported.
This command is currently not supported by the system.

Number of TS from must be equal to TS to.
You cannot assign a time slot cross-connection with an unequal number of “from” (source)
and “to” (destination) time slots.

OK to lose changes (y/n)?
Confirm Yes or No if losing the changes entered is OK with you.
Only one port can be at 128K.
You cannot configure more than one port of the port for 128 kbps.

Parameters are not saved.
You have selected the Main command from the bottom of the screen without first saving your
changes. Press “s” to invoke the Save command first.

Parameters have been saved.
You have made changes to the port and typed “s” to invoke the Save command. (This is a
normal message, it always appears when you type “s” to save changes.)

B-6

Error Messages

Password minimum is 6. Use letters AND numbers
Passwords must be at least six characters long and contain both letters and numbers. A
minimum of one number must be used.
Password mismatch.
The password verification box did not match the original box.
Performance statistics not available.
You cannot obtain performance statistics for this port or ports.

Port already configured for Remote Terminal.
This port is already configured for use with a remote terminal.

Port is in use.
You cannot make any changes to an active port.

Port is not configured for ASCII.
This port is not configured for ASCII operation.

Port is not configured for TCP/IP.
This port is not configured for TCP/IP operation.

Primary WAN is not operational.
You cannot switch from a redundant WAN port back to a primary WAN port if the primary
port is still not operational.

RATE = 19.2 must have DATA = 8.
If you set the SRU port rate to 19.2 kbps, you also must set the number of data bits for that
port to 8.

Error Messages

B-7

Running Head

Model No.

Redundancy switchover is complete.
You have asked the system to switch to the redundant WAN port, and the switchover was
successfully completed. (This is not an error message; it normally appears after you initiate
the switchover.)

Redundant WAN is taken already.
You cannot switch to the redundant WAN port in slot WAN-4 if it is already in use from a
previous WAN port switch.

Remote session active. Can’t change setting.
You cannot change this setting because a remote operator has accessed the system and is
controlling it. Wait for that operator to log off and disconnect.

Restricted field.
You cannot access the Superuser password field on the CPU port Main Screen. This password
is factory-assigned.

Selected circuit is under the test already.
The current circuit is already being tested.

Simultaneous loopback tests not allowed.
You cannot activate two or more loopbacks at the same time.

SNMP Options not available on this CPU.
The current CPU port does not support SNMP configuration.

SR TS overlapping.
The subrate circuit assigned does not allow enough space for a previously assigned circuit on
the same subrate time slot. For example, if you have a 19.2 kbps device on subrate time slot 1
in b-5 framing, you cannot assign another 19.2 kbps circuit to subrate time slot 2, because the
circuit on 1 actually occupies subrate time slots 1 and 2. You must therefore assign that other
circuit to subrate time slot 3 or 4.

B-8

Error Messages

Switch request sent to port.
The system has sent your redundancy switchover command to the associated port.

Switchover must be made from the primary WAN.
You cannot switch to a redundant WAN port from another redundant WAN port. You can only
switch from a primary port to a redundant port.

Test function is not available.
The selected test is not available on the current port.

Test in progress. No changes from this screen.
You cannot change any settings in this screen while a port test is in progress.

TS Connection must be specified.
You must specify a time slot connection for the WAN circuit.

Voice CPU is not responding.
The voice CPU is not working. Power down the system, then power it up again.

WAN must be active (no loopback) to run BERT test.
You must turn off all WAN loopbacks before starting a BERT test on a WAN port.

Xconnect table can be accessed from primary WAN.
You cannot access the WAN cross-connect information from a redundant WAN port. Do this
from a primary WAN port instead.

Error Messages

B-9

Running Head

B-10

Model No.

Error Messages

Glossary
This Appendix lists the glossary of terms used in the telecommunications industry today.
AAL
ATM Adaption Layer
ABCD bits
The bits that carry signaling information over a T1 or E1 line.
ABR
Available Bit Rate
ACAMI
Alternate Channel AMI, transmitting data on every other DS0 in a DS1 to ensure ones-density.
ACO
Alarm Cutoff
ACS
Advanced Communications Server
ADPCM
Adaptive Differential Pulse Code Modulation
ADPCM port
A resource port used to compress voice or subrate data on a DS0.
ADSL
Asymmetric Digital Subscriber Line
aggregate
A single bitstream combining many bitstreams of lower rates.

Glossary

-1

Running Head

Model No.

AIS
Alarm Indication Signal
AIS/ALM
Alarm Indication Signal/Alarm
AIM
ATM Inverse Multiplexer
a-law
E1 companding standard used in the conversion between analog and digital signals in PCM
ALIS
Analogue Line Interface Solution systems.
AMI
Alternate Mark Inversion, a line coding format for T1 lines.
ANI
Automatic Number Identification
ANSI
American National Standards Institute
ASCII
American Standard Code for Information Interchange
ASK
Amplitude Shift Keying
ATM
Asynchronous Transfer Mode
AWG
American Wire Gauge (the size of an electrical wire)

-2

Glossary

B7R
Bit #7 Redundant
B7R port
A network port used to provide Network Management capability for the system.
B8ZS
Bipolar 8-Zero Substitution, a coding scheme that maintains minimum-ones density on a T1
line.
Baud Rate
A measure of transmission speed over an analog phone line
B-channel
In ISDN, a full-duplex, 64 kbps (“bearer”) channel that carries user data.
BECN
Backward Explicit Congestion Notification
BER
Bit Error Rate, the number of errored bits divided by the total number of bits.
BERT
Bit Error Rate Tester
BES
A Bursty Errored Second is any second with more than one and fewer than 320 CRC-6 (ESF),
BPV (D4/D-frame), or CRC-4 (E1) errors
bit
Contraction of the words "binary" and "digit."
bps
Bits per second (not to be confused with Baud Rate)
BRI
Basic Rate Interface, (2B+D) in ISDN

Glossary

-3

Running Head

Model No.

BRITE
BRI Terminal Emulation
CAS
Channel-Associated Signaling, a means of conveying voice-circuit signaling over an E1 line.
CAS–CC
Channel Associated Signaling–Common Channel
CAS–BR
Channel Associated Signaling–Bit-robbing mode, used to convey voice-circuit signaling over
a T1 line.
CBR
Constant Bit Rate
CCITT
Consultative Committee for International Telegraph and Telephone, now known as the ITU
(International Telecommunications Union).
CCR
Current Cell Rate
CCS
Common Channel Signaling
CEP
Connection End Point
CEPT
Conference on European Posts and Telecommunications, a European standards organization.
CES
Circuit Emulation Service

-4

Glossary

CGA
Carrier Group Alarm, a condition that results from a network failure. Forces all voice circuits
off-hook or on-hook until the alarm-causing condition is cleared and the CGA ends.
CLUE
Customer-Located Equipment
clear channel
A DS0 channel without formatting restrictions (i.e., uses the full 64 kbps bandwidth for data
transmission).
CO
Central Office
channel bank
A device that places multiple voice and/or data channels onto a digital or analog carrier
CL
Connectionless Service
CPE
Customer Premises Equipment
CODEC
COder/DECoder (a device that encodes and decodes signals)
companding
Non-linear reduction of a signal, usually compressing the larger signal values
CRC
Cyclic Redundancy Check
CRC-4
CRC using four check bits
CRC-6
CRC using six check bits

Glossary

-5

Running Head

Model No.

CSA
Carrier Serving Area
CSC
Common Signaling Channel
CSU
Channel Service Unit, an interface to a T1 line that terminates the local loop.
CTE
Channel Terminating Equipment (Network)
CTS
Clear To Send, a lead on an interface indicating that the DCE is ready to receive data.
D4
A common T1 framing format, consisting of 12 frames. Also known as SF framing.
DACS
Digital Access and Cross-connect System (an electronic digital test access and patching
system)
DCC
Data Communication Channel
DCE
Data Communications Equipment
DCS
Digital Cross-connect System
D-channel
Full-duplex, 16 kbps BRI channel or 64 kbps PRI ISDN channel.
DDS
Digital Data Service

-6

Glossary

d/i
Drop and Insert, one of the modes of operation for the WAN port.
DID
Direct Inward Dialing
DLC
Digital Loop Carrier
DLCI
Data Link Connection Identifier
DM
Degraded Minutes. Number of minutes with ES, UAS or LOS greater than zero (0).
DMA
Direct Memory Access
DPO
Dial-Pulse Originating
DPT
Dial-Pulse Terminating
DRAM
Dynamic Random Access Memory
DS0
Digital Signal - Zero, the standard bandwidth for digitized voice channels. Also referred to as
a time slot.
DS0–A
Strategy for mapping a single low-speed data circuit to a single DS0.
DS0–B
Strategy for multiplexing two or more DS0-A low-speed data circuits onto a single DS0 (e.g.,
5x9.6kbps, 10x4.8kbps or 20x2.4kbps).

Glossary

-7

Running Head

Model No.

DS1
Digital Signal, Level 1
DSL
Digital Subscriber Line
DSR
Data Set Ready
DSX
Digital Signal Cross-connect
DTE
Data Terminal Equipment
DTR
Data Terminal Ready
DX
Duplex Signaling
E1
Digital 2.048 Mbps line rate, widely used in countries outside the U.S. and Canada.
EFCI
Explicit Forward Congestion Indicator
ELAN
Emulated Local Area Network
EPROM
Electronic Programmable Read-Only Memory, stores firmware on plug-in modules of the
system.

-8

Glossary

Errored Seconds. The number of seconds for which BRI port has detected a NEBE or FEBE
greater than zero (0).
ESF
Extended Superframe (24-frame sequence for a T1 line; consists of two superframes)
ESS
Electronic Switching System
E&M
Earth and Magnetic, or recEive and transMit. The signaling leads on inter-switch voice
connections.
E&M port
An E&M voice port for this system.
ETS1
European Telecommunications Standards Institute
F4
Four-frame multiframe structure used in T1 signals.
FAS
Frame Alignment Signal
FCC
Federal Communications Commission
FDL
Facility Data Link, consists of every other framing bit of an extended T1 superframe. The FDL
is used to convey performance data, line test/loopback status, and other parameters for an
ESF-framed T1 line. The FDL rate is 4 kHz.
FE1
Fractional E1

FEBE

Glossary

-9

Running Head

Model No.

Far End Block Error, shows transmission errors detected by the far end equipment
FOTS
Fiber Optics Transmission Systems
frame
A delineated assembly of information, consisting of one sequence of 24 encoded channel
samples (T1) or 32 channel samples (E1).
FS
Frame Signaling bits (T1 line).
FT
Frame Terminal bits (T1 line)
FT1
Fractional T1
FUNI
Frame User Network Interface
FX
Foreign Exchange, a line that goes from a CO or PBX beyond the PBX or the CO’s normal
service area.
FXO
Foreign Exchange - Office, performs analog to digital and digital to analog transmission at the
CO.
FXS
Foreign Exchange - Subscriber or Station, an interface at the end of an FX line connected to a
telephone or PBX. Performs digital to analog and analog to digital transmission at the station
end.
FXS port
One of the voice ports for this system
Ground

-10

Glossary

A physical connection to the earth, chassis, or other reference point
HDB3
High-Density Bipolar Order of 3, three-zero maximum coding for E1 lines. Provides a fourth
zero violation for data bytes.
HDLC
High-Level Data Link Control (bit-oriented protocol)
HDSL
High-bit rate Digital Subscriber Line
HSU port
High-Speed Unit port (one of the data ports for this system).
HMI
Host Management Interface
HOM
HDSL OEM Module
ICMP
Internet Control Message Protocol
IEC
Inter-exchange Carrier (also called IXC)
IMUX
Inverse Multiplexer
IMUX port
A resource port that gives users access to the ISDN network for bandwidth-on-demand
applications.
inverted a-law
A variation of a-law encoding that provides a higher ones density on E1 lines.
IP

Glossary

-11

Running Head

Model No.

Internet Protocol
IPR
Internet Protocol Router
ISP
Internet Service Provider
ITU
International Telecommunications Union (previously known as CCITT [Consultative
Committee for International Telegraph and Telephone])
ITU-T
International Telecommunications Union, Technical sector
IXC
Inter-exchange Carrier (also called IEC)
Kbps
Kilobits per second
LAN
Local Area Network
LANE
LAN Emulation
loopback
Path for returning a signal back to the point of origin for circuit testing
LOS
Loss Of Synchronization. Shows the number of seconds for which the BRI port detects LOS.

LSB
Least Significant Bit
LT

-12

Glossary

Line Termination
LULT
LT Like Unit
LUNT
NT Like Unit
MAC
Media Access Control
MBS
Nortel’s Meridian Business Set. An electronic telephone set capable of handling the Meridian
Digital Centrex features offered by DMS SuperNode Switch.
Mbps
Megabits per second
MDC
Meridian Digital Centrex
modem
Contraction of the words “modulator” and “demodulator”
MRD
Manual Ringdown
MSP
Maintenance Service Provider
MTS
Memory Time Switch

MTU
Maximum Transfer Unit
mu-law

Glossary

-13

Running Head

Model No.

T1 companding standard used in the conversion between analog and digital signals in PCM
systems.
NEBE
Near End Block Error. Shows transmission errors detected by the near end equipment
Network port
A CPU port, Resource port, or WAN port used in this system.
NMS
Network management system, a computer used to control networks from a single location.
NNI
Network Node Interface
NOS
No-Signal Alarm
NRZ
Non-Return-to-Zero signal format
NT
Network Termination
NTU
Network Termination Unit, connects BRI station equipment to the integrated access system.
Any standard 2B1Q (U interface) device that supports "nailed-up" (one or two B-channels)
connections with no D-channel signaling.
OCU–DP port
Office Channel Unit - Dataport (one of the data ports for this system).

OOF
Out Of Frame, an indication that the system is searching for the framing bit pattern in the
signal received from the network.
OOS

-14

Glossary

Out of Service, an indication that a system element has failed.
OSI
Open Systems Interconnection
PAM
Pulse Amplitude Modulation
PBX
Private Branch Exchange, a small phone switch inside a company.
PCM
Pulse Code Modulation
PDU
Protocol Data Unit
ping
A program used to test IP-level connectivity from one IP address to another.
PLAR
Private Line Automatic Ringdown
PLR
Pulse Link Repeater
POP
Point of Presence, usually a telephone carrier office.
POTS
Plain Old Telephone Service

PPO
PPhone Foreign Exchange Office port. An interface at the end of the FX line connected to
DMS SuperNode Switch.
PPP

Glossary

-15

Running Head

Model No.

Point-to-Point Protocol
PPS
PPhone Foreign Exchange Station port. An interface at the end of the FX line connected to
MBS.
protocol
Procedure or set of rules for communication between two devices.
PSTN
Public Switched Telephone Network.
PTT
Postal, Telephone, and Telegraph authority
PVC
Permanent Virtual Circuit
QAM
Quadrature Amplitude Modulation
RAI
Remote Alarm Indication
Red alarm
A local alarm on a T1 line, indicating that a major failure has occurred at this location.
robbed-bit
A type of analog signaling that occasionally “robs” information bits to convey encoded
voice-circuit signaling.

RZ
Return-to-Zero signal format
SAP
Service Access Point

-16

Glossary

SES
Severely Errored Seconds
SF
Superframe, a T1 framing format consisting of 12 frames. Also known as D4 framing.
SLC Subscriber Loop Carrier, a Digital Loop Carrier (DLC).
SLIP
Serial Line Internet Protocol
SMDS
Switched Multi-megabit Data Service
SNMP
Simple Network Management Protocol
SONET
Synchronous Optical Network
SRU port
Subrate Unit port (one of the data ports for this system).
system
Often used as a synonym for the integrated access system.
TA
Terminal Adapter
TE
Terminal Equipment
T1
The North American DS1 transmission rate, 1.544 Mbps.
TAD
Test Access Digroup

Glossary

-17

Running Head

Model No.

TCP/IP
Transmission Control Protocol/Internet Protocol
TDM
Time-Division Multiplexing
TELNET
An application protocol offering virtual terminal service in the Internet suite of protocols.
time slot map
Specification of the connections between all incoming and outgoing lines connected to the
system. A cross-connect map allows users to split the bandwidth of T1 and E1 lines into
amounts more suitable for normal voice and data communications.
TS
Time Slot
TSA
Time Slot Assigner
UART
Universal Asynchronous Receiver/Transmitter
UAS
Unavailable Seconds. Incremented by 10 when LOS has remained for more than 10
consecutive seconds and incremented by 1 every second until LOS is removed.
UDP
User Datagram Protocol

UI
Unit Interval
UNI
User Network Interface

-18

Glossary

User port
A Voice port, Data port, or Alarm port.
VBR
Variable Bit Rate
VC
Virtual Channel
VCL
Virtual Channel Link
VP
Virtual Path
VPC
Virtual Path Connection
WAN
Wide Area Network
WAN port
Wide Area Network port (one of the ports for this system).
wideband
A bandwidth equal to many individual channels
X.50
CCITT (ITU) standard data transmission protocol.

yellow alarm
Remote alarm on a T1 line. A major failure has occurred at a remote location.

ZCS

Glossary

-19

Running Head

Model No.

Zero Code Suppression

-20

Glossary

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Zhone Imacs 200 Users Manual IMACs200

IMACS-200 to the manual 1708342c-95cd-45a9-8b1b-a946b1225847

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