COMSPHERE 3600 Series Data Service Units S 3610 And 3611 Time Division Multiplexer, Multichannel, Multipoint, Digital B A2 GB48 70

3610-A2-GB48-70 3610-A2-GB48-70

User Manual: 3610-A2-GB48-70

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COMSPHERE

3600 SERIES

DATA SERVICE UNITS

MODELS 3610 AND 3611

TIME DIVISION MULTIPLEXER,

MULTICHANNEL MULTIPOINT, AND

DIGITAL BRIDGE OPTIONS SUPPLEMENT

Document No. 3610-A2-GB48-70

March 1999

COMSPHERE 3600 Series Data Service Units

AMarch 1999 3610-A2-GB48-70

COMSPHERE

3600 Series Data Service Units

Models 3610 and 3611

Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options

Supplement

3610-A2-GB48-70

8th Edition (March 1999)

Changes and enhancements to the product and to the information herein will be documented and issued as a new release.

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor directly for any help needed. For additional information

concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or Paradyne worldwide office

locations, use one of the following methods:

•Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty there. Select

Service & Support → Warranty Registration.)

•Telephone: Call our automated system to receive current information by fax or to speak with a company representative.

— Within the U.S.A., call 1-800-870-2221

— Outside the U.S.A., call 1-727-530-2340

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respective owners.

COPYRIGHT  1999 Paradyne Corporation. All rights reserved.

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Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability

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hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.

Printed on recycled paper

i3610-A2-GB48-70 March 1999

Table of Contents

Preface

About This Supplement iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

How to Use This Supplement iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product-Related Documents iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Product Introduction

TDM/MCMP Common Capabilities 1-1. . . . . . . . . . . . . . . . . . . . . . . . .

TDM Capability 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MCMP Capability 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU with Digital Bridge Capability 1-3. . . . . . . . . . . . . . . . . . . . . . . . .

LPDA-2 with TDM or MCMP 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. TDM/MCMP Installation and Setup

Before You Begin 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the DSU 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Opening the DSU 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Separating the DSU from the TDM or MCMP 2-3. . . . . . . . . . . . . . .

Changing the DSD Option Card Setting 2-4. . . . . . . . . . . . . . . . . . . .

Reassembling the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Powering Up the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power-Up Routine 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Connections 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reconfiguring Ports 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Verification Testing 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COMSPHERE 3600 Series Data Service Units

ii March 1999 3610-A2-GB48-70

3. Front Panel Operation

Overview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Panels 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status Indicators 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu Structure 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menus and Modes of Operation 3-3. . . . . . . . . . . . . . . . . . . . . . . . . .

Local/Remote Branch Menus 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status Branch 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Health and Status 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Status 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Circuit Quality 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Identity 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Terminal Power 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Backup Branch 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Bridging 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Branch 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Abort 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Test 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loopbacks 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End-to-End Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bit Error Rate Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dial Tone Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Branch 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Options 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Poll List 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Branch 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transmitter Control 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LEDs 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Leads 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reset 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Mode 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. Configuration Option Tables

Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Option Tables 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Option Tables Format 4-2. . . . . . . . . . . . . . . . . . . . . .

TDM Mode 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A. Data Service Unit Menu A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B. Configuration Worksheets B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Configuration Examples C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D. Troubleshooting and Front Panel Messages D-1. . . . . . . . . . . . . . .

E. Technical Specifications E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index

iii3610-A2-GB48-70 March 1999

Preface

About This Supplement

This supplement provides basic information to get you

started using your COMSPHERE 3600 Series Data

Service Unit (DSU) with a Time Division

Multiplexer (TDM) or Multichannel Multipoint (MCMP)

option installed. The supplement also provides a summary

of TDM and MCMP capabilities, along with the unit’s

capabilities when it operates as a digital bridge.

It is assumed that you are familiar with the functional

operation of data communications equipment.

How to Use This Supplement

Chapter 1 provides a general overview of the TDM,

MCMP, and digital bridge capabilities for the

3600 Series DSU.

Chapter 2 explains the set up of your Model 3610 DSU

with TDM or MCMP circuit card. To install a Model 3611

DSU with TDM or MCMP, refer to the COMSPHERE

3000 Series Carrier, Installation Manual.

Chapter 3 provides an overview of the front panel with

TDM or MCMP and the DSU’s status indicators.

Chapter 4 provides the basics of setting or changing

configuration options for TDM, MCMP, and digital

bridging. The configuration option tables supplement the

DSU tables in the User’s Guide and the DBM tables in the

DBM Options Supplement.

Appendix A provides MUX factory default

configuration options and the DSU’s menu structure.

Refer to the menu tree as you proceed through the menu

from the front panel or SDCP if you have a Model 3611

DSU.

Appendix B provides MUX configuration worksheets

to use during planning.

Appendix C contains TDM, MCMP, and digital bridge

sample configurations.

Appendix D provides troubleshooting and a list of

MUX configuration error messages that may appear on

the front panel.

Appendix E contains technical specifications.

Refer to the User’s Guide for an extensive Glossary

and list of acronyms.

Product-Related Documents

For additional 3600 Series features, refer to the:

•COMSPHERE 3600 Series Data Service Units,

Models 3610 and 3611, User’s Guide, for basic

Data Service Unit (DSU) information and a

product-related documentation table: Document

No. 3610-A2-GB46.

•COMSPHERE 3600 Series Data Service Units,

Models 3610 and 3611, Dial Backup Module

Options Supplement for the DBM features:

Document No. 3610-A2-GB49.

•COMSPHERE 3000 Series Carrier, Installation

Manual: Document No. 3000-A2-GA31.

Contact your sales or service representative to order

additional product documentation.

Paradyne documents are also available on the World

Wide Web at www.paradyne.com. Select Library →

Technical Manuals.

COMSPHERE 3600 Series Data Service Units

iv March 1999 3610-A2-GB48-70

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1-13610-A2-GB48-70 March 1999

Product Introduction

TDM/MCMP Common Capabilities 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDM Capability 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MCMP Capability 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU with Digital Bridge Capability 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LPDA-2 with TDM or MCMP 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDM/MCMP Common

Capabilities

The TDM/MCMP option is an additional circuit card.

TDM capability allows up to six independent ports to

share one standard digital point-to-point facility. MCMP

capability allows up to six ports to share one standard

56 kbps multipoint facility.

The TDM option can be software-defined to provide

one of the following:

•TDM

•Digital bridge capability

The MCMP option can be software-defined to provide

one of the following:

•MCMP

•TDM

•Digital bridge capability

Common features are:

•Async/Sync conversion: Provides point-to-point

and multipoint asynchronous-to-synchronous data

conversion for DTE ports for both EIA-232 and

V.35. The DSU can send asynchronous data over a

synchronous network.

•FEP port sharing: Provides a method of

connecting a front-end processor (FEP) to two

consecutive ports to broadcast the same message

over the network and the shared ports. Up to three

separate FEP port-sharing groups can be selected.

Each group consists of two adjacent ports (1 and 2,

3 and 4, 5 and 6).

•Elastic store per port: Provides a transmit elastic

store buffer for each port to support extended

circuits. Supports both digital and analog

extensions.

•Switched-carrier emulation: Provides optional

switched-carrier emulation for each port for both

inbound (toward the control DSU) and outbound

(toward the tributary DSU) directions.

1

COMSPHERE 3600 Series Data Service Units

1-2 March 1999 3610-A2-GB48-70

TDM Capability

TDM capability allows up to six independent ports to

share one standard digital point-to-point facility.

Additional TDM capability includes the following

features:

•Flex option: There are two versions of the

TDM/Flex standalone model:

— 2-port TDM/Flex

— 6-port TDM/Flex

With either flex option installed, each port can be

set independently as either an EIA-232 or V.35

interface.

•Port capacity: Model 3610 provides:

— Up to six EIA-232 or V.35 ports with DSD or

Flex models

— An EIA-232 or V.35 Port 1 option and five

EIA-232 ports for the Standard model

Model 3611 uses the Standard model and a six-port

DTE connector module. The connector module

includes six 25-pin DTE connectors and a 26-pin

high-density connector for the V.35 alternate Port 1

option. Model 3611 does not have V.35 for

Ports 2–6.

•Port speeds: Individual TDM ports (1 through 6)

can be set to a variety of speeds. The sum of the

port speeds cannot exceed the DSU data rate.

•Digital sharing: Allows two groups of consecutive

ports to share the same TDM channel. All ports in a

digital-sharing group operate at the same speed and

receive the same data.

•Data rates: Operates up to 64 kbps full-duplex.

•Primary network interface: The alternate Port 1

on the DSU provides an internal aggregate data

stream. When the Network Interface configuration

option is set to forced on, the unused V.35 or

EIA-232 interface functions as an external TDM. A

connection can be made to any multiplexer or

DSU/CSU.

When the DSU powers up, data automatically

switches to the alternate Port 1. No DDS

connection is required. Any cluster controller

requiring subrate can be supported at a remote site.

Using the alternate Port 1 for the network interface

supports:

— DBM, TDM, and MCMP options

— Disruptive and Nondisruptive diagnostics

— Rate Adaption and In-Band Framing

— Aggregate data rates of 64, 56, 19.2, 9.6, 4.8,

and 2.4 kbps

•Digital bridge: Performs digital bridge functions

and supports many applications, including

dedicated multipoint dial backup and multipoint

LADS operation.

•Flexible device control: Provides the same

diagnostic capabilities as a point-to-point

3600 Series DSU without the TDM option. Allows

control of the TDM option from the front panel, an

async terminal, or a 6700 or 6800 Series NMS.

•Point-to-point backup: Allows a DSU with TDM

to have a DBM installed for point-to-point dial

backup. If backup is at a different port speed than

the DSU’s port speed, TDM operation

automatically changes to a second predefined port

speed to support dial backup operation at a lower

port speed.

Product Introduction

1-33610-A2-GB48-70 March 1999

MCMP Capability

MCMP capability allows up to six independent

application programs to share one standard 56 kbps

multipoint facility. MCMP capability provides the

following features:

•Channel capacity: Provides up to eight channels,

which can be matched to all enabled ports.

•Flex option: There are two versions of the

MCMP/Flex standalone model:

— 2-port MCMP/Flex

— 6-port MCMP/Flex

With either flex option installed, each port can be

set independently as either an EIA-232 or

V.35 interface.

•Port capacity: Model 3610 provides:

— Up to six EIA-232 or V.35 ports with DSD or

Flex models

— An EIA-232 or V.35 Port 1 option and five

EIA-232 ports for the Standard model

Model 3611 uses the Standard model and a six-port

DTE connector module. The connector module

includes six 25-pin DTE connectors and a 26-pin

high-density connector for the V.35 alternate Port 1

option and up to five EIA-232 ports. Model 3611

does not have V.35 for Ports 2–6.

•Digital sharing: Allows up to three digital-sharing

devices at each tributary by assigning channels to

more than one port. All ports operate at the same

speed and receive the same data.

MCMP capability allows digital sharing and

multiplexing simultaneously at any tributary site.

•Number of addressable devices: Supports up to

40 tributary DSUs or 20 tributary DSUs with

DBMs, each equipped with an MCMP circuit card.

•Channel speeds: Speeds of the individual channels

can be set to a variety of speeds. The sum of the

channel speeds cannot exceed 48 kbps.

•Multipoint dial backup: Provides multipoint

service restoration. When Network Interface

configuration option is set to AggSw, the DSU

provides an internal aggregate data stream for

diagnostics and framing on alternate Port 1. The

alternate Port 1 can be connected to an extended

bridge.

DSU with Digital Bridge

Capability

Digital bridging is used primarily for dedicated

multipoint dial backup. A digital data service (DDS)

multipoint network can be backed up with:

•V.32 analog DBM

•Switched 56 kbps calls between the central-site and

remote-site DBMs that are connected by the digital

bridge

•ISDN (Integrated Services Digital Network)

The digital bridge capability is dedicated to a single

DSU. The DTE connected to the DSU is usually the

controlling DTE of a multipoint network. Configure either

the TDM or MCMP option to provide the digital bridge

capability.

The digital bridge capability, when used to support

dedicated multipoint dial backup, includes the following

features:

•Number of tributaries: Provides dedicated

multipoint dial backup for up to 20 tributary DSUs.

Four additional DSUs with TDMs are required for

each configured extended bridge (EBrdg).

•Partial and full backup: Provides multipoint dial

backup for both partial and full backup on DDS

multipoint circuits, depending on configuration.

•Security: DBMs provide multiple levels of call

setup security.

•Restoration: When the DSU rate equals the DBM

rate, preconfigured tributary DSUs can

automatically drop the backup connection and

switch back to the DDS facility when the DDS

network is restored.

LPDA-2 with TDM or MCMP

The SNA Diagnostic Interface uses the Release 2 Link

Problem Determination Aid (LPDA-2) protocol. The

LPDA-2 protocol is installed on the DSU circuit card.

When enabled:

•With TDM or MCMP, LPDA-2 is only supported

on Port 1.

•For digital sharing, all ports are supported.

COMSPHERE 3600 Series Data Service Units

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2-13610-A2-GB48-70 March 1999

TDM/MCMP Installation and Setup

Before You Begin 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the DSU 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Opening the DSU 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Separating the DSU from the TDM or MCMP 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing the DSD Option Card Setting 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reassembling the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Powering Up the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power-Up Routine 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Connections 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reconfiguring Ports 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Verification Testing 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Before You Begin

The Model 3610 DSU with the TDM or MCMP option

is delivered with default hardware settings, factory default

configuration option settings, and factory-installed

software.

Please note the following:

•Port 1 of the DSU is preconfigured to operate with

the TDM or MCMP capability enabled. The DSU

includes the factory default configuration option

settings for FacT with some defaults based on

hardware. Refer to Table A-1 for MUX

configuration option default settings.

•For the Model 3610, all additional ports are

disabled and preconfigured for EIA-232 port

interface operation. Each port configured for V.35

needs an adapter (feature number 3000-F1-510).

•Once a DSD model is powered up, you can verify

the port interface switch setting through the right

side of the back panel.

— If set for EIA-232, you will see a green light.

— If set for V.35, you will see a yellow light.

Installing the DSU

The Model 3610 DSU is designed for desktop

operation.

•Place the DSU in the planned location.

•Allow 1 to 2 feet of clearance for cable

connections, space for the ventilation slots on the

sides, and clearance at the rear for the cable

connections.

Hardware Settings

HANDLING PRECAUTIONS

FOR

STATIC-SENSITIVE DEVICES

This product is designed to

protect sensitive components

from damage due to electrostatic

discharge (ESD) during normal

operation. When performing

installation procedures, however,

take proper static control

precautions to prevent damage to

equipment. If you are not sure of

the proper static control

precautions, contact your nearest

sales or service representative.

2

COMSPHERE 3600 Series Data Service Units

2-2 March 1999 3610-A2-GB48-70

TDM/Flex and MCMP/Flex models are available with

two or six ports. When your firmware version is 6.33 or

greater, each port can be set individually for either

EIA-232 or V.35 using the front panel, an async terminal,

or an NMS.

Based on your model, you may need to perform one of

following procedures. Use ID from the Status branch to

obtain the firmware version.

If your

model is a

6-port . . .

And the

EIA232

setting . . . Then . . .

TDM/Flex or

MCMP/Flex

Is correct Go to the

Powering Up the

DSU

section, page 2-4.

MCMP/Flex

with firmware

6.33 or

greater

Needs to be

changed Go to the

Powering Up the

DSU

section, page 2-4

and the

Reconfiguring

Ports

section, page 2-5.

TDM/Flex or

Is correct Go to the

Powering Up the

DSU

section, page 2-4.

TDM/Flex

or

MCMP/Flex

with firmware

less than

6.33

Needs to be

changed Change the S1 switch

setting on the TDM/Flex or

MCMP/Flex circuit card to

ON for V.35 or Off for

EIA-232.

Is correct Go to the

Powering Up the

DSU

section, page 2-4.

TDM/DSD or

MCMP/DSD Needs to be

changed Change the option card to

set all six ports; start with

next section,

Opening the

DSU

.

Opening the DSU

NOTE

If the unit is already installed,

disconnect all cables, including

the power source, before

opening the DSU.

Follow this section to change a TDM/DSD or

MCMP/DSD model from:

•EIA-232 interface to V.35 interface, or

•V.35 interface to EIA-232 interface

Use a small flat-head screwdriver to release the four

snap tabs holding the base in place. Remove the cover. Do

not allow any cables to pull free from the inside front

panel connectors.

496-14707-01

With TDM

or MCMP

Snap Tabs

COMSPHERE 3610

TDM/MCMP Installation and Setup

2-33610-A2-GB48-70 March 1999

Separating the DSU from the TDM or MCMP

Follow this procedure to separate the DSU circuit card

from the TDM or MCMP (refer to Figure 2-1).

"Procedure

1. Disconnect the keypad flat cable from the DSU

circuit card by squeezing the latches on each side

of the cable connection and pulling up on the

keypad flat cable.

2. Disconnect the LCD flat cable by working the

cable free of the connector.

3. Disconnect the TDM or MCMP flat cable.

4. Unscrew the three screws holding the DSU circuit

card in place.

5. Lift the DSU circuit card from the base and set

aside.

LCD

Flat

Cable

Keypad

Flat

Cable

DSU

Circuit Card

Expanded

Base

Snap

Tabs

TDM or MCMP

Flat Cable

Screw

495-13846c

Snap

Tabs

Screw

Screw

Figure 2-1. Disassembling a TDM or MCMP DSU

COMSPHERE 3600 Series Data Service Units

2-4 March 1999 3610-A2-GB48-70

Changing the DSD Option Card Setting

For the TDM/DSD or MCMP/DSD model, use the

following procedure to change the setting from EIA-232

to V.35 or from V.35 to EIA-232.

"Procedure

1. Work the option card free of its connector.

Option

Card

Rear

Panel LED 2

(Yellow

V.35)

LED 1

(Green

EIA-232)

496-13845-03

THIS SIDE FACES REAR FOR V.35

S1

S2

2. Turn the card around and re-insert. In the example

above, the card reads THIS SIDE FACES REAR

FOR V.35.

3. Continue with next section, Reassembling the

DSU.

Reassembling the DSU

"Procedure

1. Reinstall the DSU circuit card, using the three

screws.

2. Reconnect the three flat cables:

— TDM/MCMP

— Keypad

— LCD

3. Align the rear panel and four snap tabs. Replace

the cover over the expanded base, allowing the

four tabs to snap into place.

Powering Up the DSU

CAUTION

The power cord contains a

3-wire grounding-type plug

which has a grounding pin.

This is a safety feature.

Grounding of the unit is vital

to ensure safe operation. Do

not defeat the purpose of the

grounding plug by modifying

it or by using an adapter.

Prior to installation, use an

outlet tester or voltmeter to

check the ac receptacle for

earth ground. If the power

source does not provide a

ground connection, consult

an electrician to determine

another method of grounding

the unit before proceeding

with the installation.

"Procedure

1. At the rear of the DSU, insert the small end of the

power cable into the receptacle labeled POWER.

495-14710

PORT 5 PORT 3

PORT 6 PORT 4 PORT 2

POWER LINE BACKUP CC/DC EIA 232

V.35

CAUTION

Only use the power

transformer designed for the

Model 3610 DSU. Using other

transformers may result in

personal injury or damage to

the equipment.

2. Connect the 3-prong plug at the other end of the

cable to an ac outlet.

TDM/MCMP Installation and Setup

2-53610-A2-GB48-70 March 1999

Power-Up Routine

When you apply power the first time, the DSU

performs a power-up routine and:

•Determines what hardware options are installed.

This may include MUX to represent TDM or

MCMP.

•Automatically runs a Device Test on the DSU and

each installed hardware option. All front panel

lights flash on and off.

•If a TDM or MCMP is installed, MUX appears as

Pass or Fail on the LCD.

Refer to your User’s Guide for power-up messages and

steps for saving and changing configuration options. Refer

to Table D-1 for Configuration Error messages.

If a Fail message appears or an installed hardware

option does not appear, see Appendix D, Troubleshooting

and Front Panel Messages. Refer to Document No.

3610-A2-GB46 for DSU troubleshooting and Document

No. 3610-A2-GB49 for DBM troubleshooting.

DTE Connections

Make the DTE connections as described in the User’s

Guide, Document No. 3610-A2-GB46.

In a TDM or MCMP application, all ports default to

EIA-232 port interface operation. For MCMP/TDM Flex,

Ports 1 through 6 can be set individually to EIA-232 or

V.35 by using the MUX port configuration options.

For an EIA-232 connection with distances greater than

50 feet or data rates higher than 19.2 kbps, use short, high

quality cable with low capacitance and a DTE capable of

supporting the distance and data rate.

When Port 1 requires a speed higher than 19.2 kbps, it

is recommended that the port interface be set to V.35. An

adapter is required for every port (2 through 6) that is set

to V.35 interface.

Reconfiguring Ports

If you have a MCMP/TDM Flex with a firmware

version 6.33 or greater, you can configure each port for

either EIA-232 or V.35 interface compatibility from the

front panel, an async terminal, or an NMS.

To set a port for EIA-232 or V.35 operation:

"Procedure

1. From the Home screen, select Local (F1). The

following screen appears on the LCD.

F1

Local Mode:

Stat Bckup Test

F2 F3

Confg Ctrl

2. Press the key until Confg appears.

3. Select Confg (Configuration branch). The

Configure screen appears.

4. Select Opts. The Load from screen appears.

5. Select Activ (F1). The Edit/Save screen appears.

F1

Edit/Save:

SAVE DSU Diag

F2 F3

DBM Gen Bkup MUX PrtSp

LPDA

COMSPHERE 3600 Series Data Service Units

2-6 March 1999 3610-A2-GB48-70

6. Press the or key to scroll the MUX option

set into view.

7. Press the function key directly below MUX. The

Change MUX Opts screen appears.

F1

Change MUX Opts:

Copy Setup Prt1

F2 F3

Prt2 Prt3 Prt4 Prt5 Prt6

8. Select a port:

•Any of the installed ports, Prt1 through Prt6,

for a 6-port MCMP/TDM Flex

•Prt1 or Prt2 for a 2-port MCMP/TDM Flex

9. Press Next or Prev and select EIA232 or V.35.

F1

DTE Port: EIA232

Next EIA232 V.35

F2 F3

Prev

If you are . . . Then return to . . .

Selecting another port Change MUX Opts,

Step 7.

Finished The Edit/Save screen.

10. Select SAVE.

Network Verification Testing

Perform verification testing after any installation.

"Procedure

1. Request a device Identity report from each

tributary to ensure that the DSU is addressed

properly (ID from the Status branch).

NOTE

The Model 3610 is delivered

with its network address set to

254.

2. Perform a Digital Test on the DDS circuit to

ensure that the network is functioning (DT from

the Test branch).

Perform a Digital Test on each:

— Active port when MUX Funct is set to TDM

— Tributary DSU when MUX Funct is set to

MCMP

NOTE

A

control DSU

can originate a

Digital Test in a point-to-point or

multipoint network. Use Position

in the Diagnostic General

configuration option table to set

a unit to Cntrl.

A

tributary DSU

can originate a

Digital Test in a point-to-point

network only, provided the

configuration option Respond to

Remote Digital Loopback

(RespondRDL) is enabled in the

control.

For additional verification steps, refer to Appendix D,

Troubleshooting and Front Panel Messages.

3-13610-A2-GB48-70 March 1999

Front Panel Operation

Overview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Panels 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status Indicators 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu Structure 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menus and Modes of Operation 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local/Remote Branch Menus 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status Branch 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Health and Status 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Health and Status 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Status 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Circuit Quality 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Identity 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Terminal Power 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Backup Branch 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Bridging 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Central-Site Bridge 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Extended Bridge 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Branch 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Abort 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Test 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loopbacks 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Loopback 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Loopback 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Loopback 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Digital Loopback 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End-to-End Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bit Error Rate Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dial Tone Test 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Branch 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Options 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Poll List 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Branch 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transmitter Control 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LEDs 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Leads 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reset 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Mode 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

You can manage a 3600 Series DSU from:

•The front panel

•An async terminal

•A 6700 or 6800 Series NMS

The front panel menus are organized as a branching

hierarchy or menu tree. Refer to these reference materials

as you proceed through the DSU’s menus.

•Appendix A contains this menu tree.

•Chapter 4 presents configuration option tables.

•Appendix B contains Configuration Worksheets.

3

COMSPHERE 3600 Series Data Service Units

3-2 March 1999 3610-A2-GB48-70

Front Panels

The front panel is the user interface to the DSU. There

are two types of front panels:

•Front panel on the Model 3610 DSU (see

Figure 3-1).

•SDCP (shared diagnostic control panel) used with

the Model 3611 DSU (see Figure 3-2) in a

COMSPHERE 3000 Series Carrier.

F1 F2 F3

OK Alrm Test Dial TXD RXD

107

RTS CTS DTR LSDDSR

COMSPHERE 3610

105 106 108 109104103

DTE Status

Indicators

Dial

Backup

Test

Mode

Network/Device

Alarm

LCD

496-12347b-06

Figure 3-1. Model 3610 Front Panel

Front panel operation does not vary with the addition

of DSU options (DBM, TDM, MCMP, or SNA Diagnostic

Interface). However, menu or selection displays may vary

based on installed options. Refer to the User’s Guide for

basic front panel, display, keypad, and menu function

information.

A Model 3611 DBM with Primary Core set to Yes does

not function as a DSU and is labeled with an alpha code:

DBM-D, DBM-I, DBM-S, and DBM-V. A DBM-X is a

Model 3611 DBM-D, DBM-I, DBM-S, or DBM-V. Refer

to Document No. 3610-A2-GB49 for DBM details. Any

MUX function is operational with a DBM-X.

Network/

Device Alarm

DSU

3611

Multirate

TXD

RXD

RTS

CTS

DSR

DTR

LSD

Ok

Alrm

Test

Dial

Status

Front Panel

Spkr

103

104

105

106

107

108

109

Test Mode

Dial Backup

DTE

Status

Indicators

SDCP

Indicator

(Front Panel)

496-14720-01

TDM

3600

1

2

3

4

5

6

Ok

Alrm

Status

Port

Spkr

MCMP

3600

1

2

3

4

5

6

Ok

Alrm

Status

Port

Spkr

Figure 3-2. Model 3611 DSU,

TDM and MCMP Faceplates

Status Indicators

The status indicators on the Model 3610 DSU’s front

panel and on the Model 3611 DSU’s faceplate

continuously provide information on the current operating

condition of the DSU.

Refer to the COMSPHERE 3000 Series Carrier

Installation Manual for SDCP status indicator tables;

these are unchanged by the presence of a TDM or MCMP

circuit card.

Front Panel Operation

3-33610-A2-GB48-70 March 1999

The status indicators of the carrier-mounted

Model 3611 DSU are spread across the SDCP, DSU,

TDM, or MCMP faceplates. Refer to Table 3-1 for TDM

and MCMP status indicators and descriptions.

Table 3-1

Model 3611 TDM and MCMP Status Indicators

LED Color Description

OK Green Health and status indicator: TDM or

MCMP operation is normal. Indicator

flashes two times per second if a

message is present.

Alrm Red Health and status indicator: There is

an alarm in the TDM or MCMP

hardware, firmware, or a corrupted

configuration.

A voltage spike on the power line or

momentary loss of power may cause

an alarm. The DSU automatically

reloads the active set of TDM or

MCMP configuration options. When

the reload has completed, the Alrm

LED goes Off and the TDM or MCMP

OK LED comes ON.

Port 1,

2, 3, 4,

5, or 6

Green TDM or MCMP mode: Shows ports

currently being monitored. The status

of the port’s leads is displayed on the

faceplate of the associated DSU.

One of the six ports can be monitored

at any given time; the port to be

monitored is selected at the SDCP.

When Network Interface is set to

aggregate switch (AggSw), all ports

are monitored and all LEDs will be

ON.

Bridge mode: The port LEDs perform

differently. The LEDs indicate which

ports had RTS ON during the last

second.

When the port is connected to a DCE

device, the port RTS becomes the

received LSD signal of the DCE

device. The LEDs indicate which ports

had upstream activity during the last

second.

Menu Structure

A 3600 Series DSU comes factory-loaded with default

configuration settings:

•Model 3610 DSU is configured as a tributary

(FacT)

•Model 3611 DSU is configured as a control (FacC)

•DSU with MCMP/TDM comes configured as a

TDM

Menus and Modes of Operation

A DSU without TDM or MCMP operates in Basic

mode. A DSU equipped with TDM or MCMP can operate

in one of several modes. The mode of operation affects

which menus appear and the selections available within

the menus. Use the MUX Function configuration option

to set the mode of operation (Table 4-1).

Access to all network management tasks from the front

panel begins at the top-level menu, the head of the menu

hierarchy. Press the key from anywhere in the menu

to return to the top-level menu.

495-12970b

TOP-LEVEL MENU

Local Remot

Bckup Test Ctrl

Msgs

Address

Confg

Stat

Local/Remote Branch Menus

The Local branch menu has five branches; the Remote

branch has four (Bckup is not available):

•Status (Stat) branch

•Backup (Bckup) branch

•Test branch

•Configuration (Confg) branch

•Control (Ctrl) branch

COMSPHERE 3600 Series Data Service Units

3-4 March 1999 3610-A2-GB48-70

Each selection leads to submenus. Factors determining

which selections or options are available are:

•DSU is in Display mode and operating in DSU

mode

•DSU has Full mode disabled

•DSU is a control or tributary

•Selecting the Local or Remote branch

•DBM is installed

•TDM/MCMP is installed

Status Branch

The Status (Stat) branch includes reports on the health

and status of the DSU, TDM, MCMP, and DBM.

496-12970-02

TOP-LEVEL MENU

Local Remot

Bckup Test Ctrl

Msgs

Address

Confg

Stat

H/S DTE CircQ ID TPwr

Port

Select

Devic Expan Subn

Health and Status

Health and Status (H/S) displays the health and status

of the DSU, and DBM, TDM or MCMP, if installed. DSU

and line conditions are automatically scanned for normal

limits. Refer to the User’s Guide for Health and Status

messages.

Device Health and Status

Device Health and Status (Devic) reports health and

status information for a selected DSU.

For a DSU with TDM or MCMP, the Device Health

and Status report displays:

•The health and status of both the DSU and TDM or

MCMP circuit cards.

•Any test or alarm involving the TDM or MCMP

that also affects the DSU.

•Any test or alarm that appears on the DSU’s Device

Health and Status report.

DTE Status

DTE status is a snapshot display of the local or remote

DSU/DBM’s external DTE interface status. For TDM,

MCMP, or Bridge mode, an additional port number screen

appears.

F1

Port Number: 1

Displ

F2 F3

Use F1 and F2 to change the port number and F3 to

display the status.

The following external DTE interface data appears for

the selected DSU with TDM or MCMP. The display may

differ from the DSU’s LED indicators which reflect the

internal states of the interface circuits.

F1

Prt01 DTE Stats:

TXD RXD DSR

F2 F3

The DTE interface leads appear in sets. Use the or

key to scroll and view the next set of DTE leads.

Table 3-2 translates the status codes.

Table 3-2

DTE Lead Status Codes

Code Lead Status

–ON/SPACE (line above text line)

_Off/MARK (line below text line)

↑↓ In transition between Off and ON

Front Panel Operation

3-53610-A2-GB48-70 March 1999

Circuit Quality

Circuit Quality (CircQ) is a display of the DDS

Receive Signal Loss and analog DBM measurements.

Circuit Quality does not display when MUX Function is

set for EBrdg. Refer to Document No. 3610-A2-GB46 for

more information.

Identity

Identity (ID) displays a report showing a DSU’s

model number, serial number, software/firmware version,

network address, DDS rate, DBM rate, and the DBM type

installed. For a DSU with TDM or MCMP, the TDM or

MCMP circuit card’s model, application, and firmware

version also appear. Refer to Table 3-3 in your User’s

Guide for Identity Descriptions.

Terminal Power

Terminal Power (TPwr) is a display showing the status

of the connected DTE’s EIA-232 and V.35 interface. For a

DSU with TDM or MCMP, Terminal Power displays the

RTS lead status for the DTE connected to the DSU for

Port 1. The front panel displays On when the voltage is

less than –3V or greater than +3V.

Backup Branch

The Backup (Bckup) branch controls operation of

digital bridging when a DSU with TDM or MCMP has

MUX Funct set to CBrdg or EBrdg.

496-12971-06

TOP-LEVEL MENU

Local Remot

Test Ctrl

Stat

Msgs

Address

Confg

Bckup

Abort Bkup Dial DrBU Disc →Dial →DDS AggSw →NetI

For additional use of the Backup branch, refer to

Document No. 3610-A2-GB46 for network interface

aggregate switching and Document No. 3610-A2-GB49

for DBM information.

Digital Bridging

Use the Backup branch to configure a digital bridge.

Refer to Appendix C for configuration examples.

Central-Site Bridge

For a DSU configured as a central-site bridge (CBrdg),

the backup options available are Bkup and DrBU. Refer

to Table 4-2 for Digital Bridge Setup Configuration

Options.

•Bkup (backup) is used to:

— Activate the bridge

— Disconnect DDS line from bridge

— Switch to the timing source specified by the

Bridge Timing configuration option

Do not initiate the Bkup option for a partial

multipoint backup.

•DrBU (drop backup) is used to:

— Deactivate the bridge

— Connect the DDS line to bridge

— Switch to the DDS line using timing specified

by the DSU TxClkSource configuration option

For a DSU configured as a central-site bridge with the

Bridge Rate configuration option set to =DSU, the

following is an example of the display for partial backup

of a CBrdg.

F1

Brdg with DDS

Bkup

F2 F3

For a DSU configured as a central-site bridge with the

Bridge Rate configuration option set to a data rate, the

following screen appears. The DDS and backup data rates

can be different.

F1

Inactiv Brdg

Bkup

F2 F3

COMSPHERE 3600 Series Data Service Units

3-6 March 1999 3610-A2-GB48-70

Extended Bridge

For a DSU configured as an extended bridge (EBrdg):

•DSU/DBM is always in Dial Backup mode and no

Backup menu options appear

•DBM circuit card should not be installed. If

installed, the DBM must be disabled

When in full backup, the following screen appears.

F1

Brdg w/o DDS

DrBU

F2 F3

Test Branch

The Test branch provides extensive testing capabilities

for the DSU, DDS circuit, DBM, and backup circuit.

While performing a multiplexing function for a DSU,

tests can be requested on individual ports or on the

aggregate data path. Multiplexing functions include:

•TDM or MCMP

•Nondisruptive diagnostics

•Rate adaption

On the aggregate data path, Local Loopback (LL) and

End-to-End (EE) tests can be run.

Performing tests on the aggregate data stream tests the

entire bandwidth, and in-band transport communication is

lost. For tests such as aggregate Digital Loopback (DL),

the control DSU reports a No Response or a TribTimOut

alarm for downstream devices.

When the tributary DSU receives a test request from

the control DSU, any locally initiated test in progress is

aborted.

496-12972-03

TOP-LEVEL MENU

Local Remot

Bckup Ctrl

Stat

Msgs

Address

Confg

Test

DSU DBM

Abort Devic Lpbk Lamp

LL DTE DL RL

Start Start Start

Port

Select Port

Select Port

Select

Port

Select

Address

Address Address

Run

Tim # Blocks

Displ Clr

EE DT BERT

Port

Select

Subn Selective

DTone

NOTE

Running a test can affect your

application data or may cause

your application session to be

dropped depending upon the

protocol, front-end processor, or

time-out parameters. No data or

acknowledgment messages will

be transmitted while the test is in

progress.

Abort

Abort allows you to stop a test currently running. The

DSU is not allowed to run any other test until the test in

progress completes or is aborted.

Front Panel Operation

3-73610-A2-GB48-70 March 1999

Device Test

The Device (Devic) Test is an internal self-test. If

TDM or MCMP is present, the Device Test will test the

MUX circuit card also.

Loopbacks

Loopback (Lpbk) provides four loopback tests.

Figure 3-3 shows the direction of each loopback on the

circuit. Refer to Document No. 3610-A2-GB46 for

additional loopback information.

Local Loopback

Local Loopback (LL) is session-disruptive; performing

the test disrupts data. The DTE may run a test to

determine if the DTE to DSU connection and the DSU

itself are functioning properly.

•The DSU must be connected to the DTE.

•Network connection to the DSU is not required.

•For TDM, MCMP, or Bridge mode, the entire data

stream is looped back and all six ports are in Local

Loopback.

DTE Loopback

DTE Loopback (DTE) loops back the data path at the

DTE/DCE interface on a per-port basis without affecting

the operation of the remaining ports. The DSU with TDM

or MCMP permits one active test at a time.

Digital Loopback

Digital Loopback (DL) allows manual testing with the

remote end of the circuit. DL can be initiated from a

control or a point-to-point tributary.

Selecting one port or all active ports (Aggr) loops back

the user-transmitted data and the in-band secondary

channel transport data when nondisruptive diagnostics are

in effect. This disrupts in-band data transport

communications.

In Bridge mode, a Basic mode loopback occurs without

port selection. For MCMP mode, using the NetIntf

selection to perform a Digital Loopback is not a valid

command.

Remote Digital Loopback

Remote Digital Loopback (RL) supports testing by an

external device, such as a test pattern generator connected

to the local DSU’s DTE interface. This tests the local

DSU and the DDS circuit.

•In TDM or MCMP mode, asserting power to Pin 21

on Port 1 initiates a V.54 aggregate loopback. This

loopback is performed on the DDS circuit unless a

dial backup session is active.

•In MCMP mode, the port selected is not

automatically the port placed in loopback at the

remote location. If a channel assigned to Port 2

locally is assigned to Port 3 remotely, Port 3 at the

remote location is placed in loopback.

To abort a Remote Digital Loopback, issue an Abort

command to the control DSU.

496-15049

Control

DSU

DTE

DL on a

Port LL

COMSPHERE 3610

DTE

NETWORK

RL on

Aggregate RL on a

Port

COMSPHERE 3610

Tributary

DSU

DL on

Aggregate

Figure 3-3. Loopbacks Example

COMSPHERE 3600 Series Data Service Units

3-8 March 1999 3610-A2-GB48-70

Digital Test

The Digital Test (DT) verifies operation of a pair of

DSUs and the data circuit between them. When a Digital

Test is performed on a specific port, data transmission is

not affected on the other ports.

For a DSU operating in single-port mode and having

either nondisruptive diagnostics or rate adaption in effect,

an additional selection for Aggr or Prt1 appears.

Selecting Aggr tests the looped data path; in-band

communication transport data is not allowed.

End-to-End Test

The End-to-End (EE) test analyzes a control and a

tributary DSU or DBM and the network circuit between

them in both directions independently. Refer to Document

No. 3610-A2-GB46 for additional information.

Bit Error Rate Test

The Bit Error Rate Test (BERT) is session-disruptive

and transmits a test pattern to analyze the network circuit.

Refer to Document No. 3610-A2-GB46 for additional

information.

Dial Tone Test

The Dial Tone test (DTone) allows a DBM to test for

dial tone. This selection does not appear in the DSU’s Test

branch.

Configuration Branch

The Configuration (Confg) branch allows you to

configure or customize the DSU and its options.

The Configuration branch menu varies with the options

being configured. With TDM or MCMP installed, the

MUX and PrtSp (Port Speed) option sets appear.

Refer to the configuration option tables in Chapter 4,

the menu tree in Appendix A, and the configuration

worksheets in Appendix B for additional configuration

details. Additional Configuration branch menu details are

in Document No.:

•3610-A2-GB46 for DSU information

•3610-A2-GB49 for DBM information

496-12973-07

TOP-LEVEL MENU

Local Remot

Bckup Test Ctrl

Stat

Confg

Msgs

Opts PList Dir Phone

Addr

ChgMd

Displ Chang

Add

Acq

Activ Delet

Chang Clr

Save

DPII

ADp

Remt

Address

Activ Usr1 Usr2 Usr3

Activ Usr1

Usr2

Usr3

FacC

FacT

FacB

Load

SAVE DSU DBM Gen Bkup MUX PrtSp LPDA

Copy Setup Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Remt Usr1 Usr2 Usr3

Address

Activ Usr1 Usr2 Usr3

TDM MCMP CBrdg EBrdg None

DSU DBM Chan

Skip

Clr

Diag

All Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Copy

To

Activ

Address

DSU DBM Gen

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Copy

From

Term

Enab Pswrd CIDDisab

Pswrd

SPID

Menu

FB1

Chang Clr

SaveEnabDisab

MPTC

MPTT

Front Panel Operation

3-93610-A2-GB48-70 March 1999

Options

Options (Opts) allows you to save, copy, and/or

change DSU, Diagnostic, DBM, General, Backup, MUX,

port speeds, and LPDA-2 configuration options.

When changing configuration options, always set the

mode first (MUX Funct) in the MUX option set

(Table 4-1).

•For a DSU with TDM or MCMP, you can set the

DSU’s MUX operating mode to TDM, MCMP,

Bridge, or None. Selecting None disables the

MCMP/TDM card and the DSU operates in Basic

mode. No MUX configuration options appear.

F1

MUX Funct: MCMP

Next TDM MCMP

F2 F3

CBrdg EBrdg None Prev

•When a MCMP/TDM is installed, the CBrdg and

EBrdg selections are also available to place the

DSU in Bridge mode.

— CBrdg operates as a central-site bridge.

— EBrdg operates as an extended bridge.

When a bridge configuration consists of a

central-site bridge with one or more extended

bridges, digital bridge options must be set for each

DSU in the bridge.

•For TDM, MCMP, or Bridge mode, a port number

(6-port version or 2-port version) must be specified

before issuing some commands. The results sent

back from the DSU may vary depending upon the

operating mode (MUX Funct) and port selected.

Refer to Table D-1 for configuration error messages

that may appear after pressing SAVE.

Poll List

Poll List (PList) maintains or changes a DSU’s poll list

and interfaces with an active internal NMS. A poll list

identifies all DSUs or DBMs one level downstream. PList

is available for point-to-point tributary DSUs, or

tributaries configured for MCMP mode and nondisruptive

diagnostics.

•When a DSU is configured for MCMP mode and

nondisruptive diagnostics, both tributary DSU and

DBM addresses are included in the DSU’s poll list.

•When configured for MCMP mode and disruptive

diagnostics, only tributary DSU addresses are

included in the DSU’s poll list (DBM address is

omitted).

•Using the Acquire (Acq) command is an efficient

alternative to the Add command.

When MUX Funct is set to MCMP:

•The Acq command must be used to successfully

initiate transmissions.

•When adding tributaries to a working network:

— From a control, use the Acq command.

— From a tributary, use the Add command.

Command Complete appears when the poll list is

completed. When NMS is polling a control unit or a

control unit is polling a tributary, an asterisk (*) appears

in the Health and Status display on the right side of the

front panel.

Menu

Menu (Menu) allows you to disable Full mode. Full

mode displays all menu selections based on installed

configuration options and those set by the user. When

disabled, an abbreviated set of selections appears. The

configuration options that do not display when in Full

mode are indicated by row with a A symbol in

Appendix B, Configuration Worksheets.

COMSPHERE 3600 Series Data Service Units

3-10 March 1999 3610-A2-GB48-70

Control Branch

The Control (Ctrl) branch allows you to enable or

disable the DSU’s transmitter, as well as the DBM’s, and

to display/change the status of the general purpose

external DTE leads.

496-12974-02

TOP-LEVEL MENU

Local Remot

Bckup Test

Stat

Msgs

Address

Confg

Ctrl

TxCtl LEDs ExtL

DSU DBM Ports

Load Save

Displ Chang

Enab Disab

Devic

Port Select

Reset

Transmitter Control

Transmitter Control (TxCtl) allows you to:

•Enable or disable the DSU’s transmitter

(DDS core).

•Enable or disable individual ports in TDM or

MCMP mode.

•Select the port that will have its circuit leads

monitored.

NOTE

If the DSU core is disabled,

enabling all ports in TDM or

MCMP mode will not enable the

DSU core. You must also enable

the DSU core separately.

LEDs

The LEDs selection is available from the Local branch.

This selection allows you to monitor any of the TDM or

MCMP ports at any given time. The LEDs on the TDM or

MCMP circuit card show which ports are being monitored

when the TDM or MCMP mode is in operation. You can

also choose to monitor the aggregate data stream.

External Leads

External Leads (ExtL) allows display of the state of

four general-purpose leads on the EIA-232/V.24 Port 1

interface. Refer to Document No. 3610-A2-GB46 for

additional information.

Reset

Selecting Reset will reset all connections and start a

power-up routine. Refer to Document No. 3610-A2-GB46

for additional information.

Remote Mode

Remote mode is not available for a multipoint

tributary. Refer to Document No. 3610-A2-GB46 for

additional information.

4-13610-A2-GB48-70 March 1999

Configuration Option Tables

Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Option Tables 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration Option Tables Format 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDM Mode 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

After the DSU is installed, set the software

configuration options by accessing the Configuration

(Config) branch of the menu. Refer to the menu tree in

Appendix A and worksheets in Appendix B while

planning configurations.

495-12970b

TOP-LEVEL MENU

Local Remot

Bckup Test Ctrl

Msgs

Address

Confg

Stat

Configuration Option Tables

This section contains a configuration table for each

functional group or option set within the Configuration

branch of the menu that applies to TDM, MCMP, and

digital bridge applications.

Load and save a set of factory defaults before

changing any configuration options. For additional

details, refer to:

•Saving and Changing Configuration Options in

Chapter 2 of the User’s Guide.

•Table A-1, Factory Default MUX Configuration

Options.

•Table D-1, Configuration Error Messages, for

messages that may appear after pressing SAVE.

NOTE

With TDM or MCMP, always set

the MUX Setup

option first. The

mode of operation (MUX Funct =

TDM, MCMP, CBrdg, EBrdg, or

None) results in different

configuration options and

selections. MUX Funct set to

None results in Basic mode and

no MUX options appear.

The tables included here are:

MUX Setup Options (from same Confg menu option):

•MCMP/TDM Setup Configuration Options

(Table 4-1)

•Digital Bridge Setup Configuration Options

(Table 4-2). The setting after each configuration

option name is the FacB default setting.

MUX Portn Options (from same Confg menu option):

•MCMP/TDM Port Configuration Options

(Table 4-3)

•Digital Bridge Port Configuration Options

(Table 4-4)

Port Speed DSU Options (from same Confg menu

option):

•DSU Port Speed Configuration Options for

MCMP/TDM (Table 4-5)

•Port Speed Channel-to-Port Assignment

Configuration Options for MCMP (Table 4-6)

4

COMSPHERE 3600 Series Data Service Units

4-2 March 1999 3610-A2-GB48-70

Configuration Option Tables Format

The tables are formatted to show the following

configuration option information:

•Name of configuration option followed by a

colon (:) and the factory default setting.

•All selectable options.

•Description of the configuration option.

•Description of each selectable setting.

Factory default options for the MUX tables in this

chapter are located in Table A-1. Configuration options

appear or are filtered based on settings in effect and

additional installed hardware features.

•For basic DSU operations, refer to Document

No. 3610-A2-GB46.

•Options supporting DBMs are in Document

No. 3610-A2-GB49.

TDM Mode

Any Model 3610-A4-xxx or Model 3611-B4-xxx with

a MUX card has TDM and MCMP combined. The new

model is shipped from the factory with MUX Function set

to TDM. When factory defaults are loaded and saved, the

MCMP mode is in effect. To change the MUX circuit card

from MCMP mode to TDM mode, change the following

settings for FacC and/or FacT:

Configuration

Branch Configuration

Option FacC or

FacT

MUX Setup MUX Funct TDM

DSU Rate(Kbps) Auto

Diag Gen Link Config Pt-Pt

Gen RTS Cntrl DTE

DBM (with ISDN

DBM installed)

Rate(Kbps) 64

DBM installed) Fallback One

Table 4-1

(1 of 4)

MCMP/TDM Setup Configuration Options

MUX Funct: MCMP

Next TDM MCMP CBrdg EBrdg None Prev

MUX Function. Mode of operation for the MCMP/TDM circuit card.

TDM – TDM mode for point-to-point multiplexing, tributary multipoint DSD, or digital-sharing configuration.

MCMP – MCMP mode for multichannel multipoint operation and digital-sharing configuration. Multichannel multipoint

circuitry is activated on the MCMP circuit card.

CBrdg – Bridge mode for a central-site bridge configuration (see Table 4-2). An installed DBM must be disabled.

EBrdg – Bridge mode for a extended bridge configuration (see Table 4-2). An installed DBM must be disabled.

None – Basic mode configuration; disables the MUX circuit card. None of the following options appear.

Share DevA: Disab

Next Enab Disab Prev

Sharing Device A. Enabling this configuration option allows you to create one of two digital-sharing groups for TDM

backup of MCMP or digital bridging. Used with configuration option MCMP Backup at the end of this table. This

configuration option may be used with an LPDA-2 configuration.

The following rules apply:

•All ports in a group must have the same port speed.

•All ports must be adjacent.

•A contention group can have from 2 to 6 ports with a total of 2 ports when a 2-port MCMP/TDM Flex is installed.

•In MCMP mode, a digital-sharing group is set up by assigning multiple ports to the same channel.

Enab – Enables digital-sharing.

Disab – Disables digital-sharing.

Configuration Option Tables

4-33610-A2-GB48-70 March 1999

Table 4-1

(2 of 4)

MCMP/TDM Setup Configuration Options

Lowest Port#: 1

Next 1 2 3 4 5 Prev

Lowest Port Number. Select the lowest port number to be included in the digital-sharing group. This configuration option

appears when Sharing Device A is enabled and does not appear when a 2-port MCMP/TDM Flex is installed.

NOTE: Enabling Sharing Device A and accepting the defaults for configuration options Lowest Port Number and

Number of Ports in Group places Ports 1 and 2 in the digital-sharing group.

1 to 5 – Selects the lowest port number.

#Ports in Gp: 2

Next 2 3 4 5 6 Prev

Number of Ports in Group. Select total number of ports to be included in the first digital-sharing group. This configuration

option appears if Sharing Device A is enabled and does not appear when a 2-port MCMP/TDM Flex is installed.

NOTE: Individual ports in a digital-sharing group can be configured for streaming terminal. If streaming terminal

detection is enabled on a port and RTS (Request to Send) for that port is ON longer than the value selected,

the port’s leads are clamped until RTS is turned Off. (See RTS Cntrl in Table 4-3.)

2 to 6 – Selects the number of ports.

Port Cntrl: Host

Next Host DSD Prev

Port Control. Specifies how to handle contention between the ports in the first digital-sharing group. This configuration

option appears if Sharing Device A is enabled. Only two digital-sharing groups can have DSD contention.

Host – No port contention. Causes CTS (Clear to Send) to turn ON for any port that has RTS turned ON, even if another

port is active (RTS ON). The host protocol must enforce the order of transmission to avoid collisions.

DSD – Digital-Sharing Device (port contention). Controls CTS to ensure that only one port is active at a time. All ports

must be configured with RTS Control set to DTE. A subsequent DTE that has RTS turned ON does not have its CTS

turned ON until the first DTE has RTS Off. Selection of the next port to transmit when more than one port has raised

RTS is based upon the port number; the lowest-numbered port has the highest priority.

Share DevB: Disab

Next Enab Disab Prev

Sharing Device B. Enabling this configuration option allows you to create a second digital-sharing group. Use Sharing

Device A with LPDA-2 enabled. This configuration option does not appear when a 2-port MCMP/TDM Flex is installed.

The following rules apply:

•All ports in a group must have the same port speed.

•All ports must be adjacent.

•A digital-sharing group can have from 2 to 6 ports.

•In MCMP mode, a digital-sharing group is set up by assigning multiple ports to the same channel.

Enab – Enables digital-sharing.

Disab – Disables digital-sharing.

Lowest Port#: 3

Next 1 2 3 4 5 Prev

Lowest Port Number. Select the lowest port number to be included in the second digital-sharing group. This configuration

option appears when Sharing Device B is enabled and and does not appear when a 2-port MCMP/TDM Flex is installed.

NOTE: Enabling Sharing Device B and accepting the defaults for configuration options Lowest Port Number and

Number of Ports in Group places Ports 3 and 4 in the digital-sharing group.

1 to 5 – Selects the lowest port number for the digital-sharing group.

COMSPHERE 3600 Series Data Service Units

4-4 March 1999 3610-A2-GB48-70

Table 4-1

(3 of 4)

MCMP/TDM Setup Configuration Options

#Ports in Gp: 2

Next 2 3 4 5 6 Prev

Number of Ports in Group. Select total number of ports to be included in the second digital-sharing group. This

configuration option appears when Sharing Device B is enabled and a 6-port MCMP/TDM Flex is installed.

NOTE: Individual ports in a digital-sharing group can be configured for streaming terminal. If streaming terminal

detection is enabled on a port and RTS for that port is ON longer than the value selected, the port’s leads are

clamped until RTS is turned Off. (See RTS Cntrl in Table 4-3.)

2 to 6 – Selects the number of ports for digital-sharing.

Port Cntrl: Host

Next Host DSD Prev

Port Control. Specifies how to handle contention between the ports in the second digital-sharing group. This

configuration option appears if Sharing Device B is enabled and does not appear when a 2-port MCMP/TDM Flex is

installed. Only two digital-sharing groups can have DSD contention.

Host – No port contention. Causes CTS to turn ON for any port that has RTS turned ON, even if another port is active

(RTS ON). The host protocol must enforce the order of transmission to avoid collisions; the MCMP or TDM does not

provide port contention.

DSD – Digital-Sharing Device (port contention). Controls CTS to ensure that only one port is active at a time. All ports

must be configured with RTS Control set to DTE. A subsequent DTE that has RTS turned ON does not have its CTS

turned ON until the first DTE has RTS Off. Selection of the next port to transmit when more than one port has raised

RTS is based upon the port number; the lowest-numbered port has the highest priority.

P1/2 FEPSh: Disab

Next Enab Disab Prev

Ports 1 and 2 Front-End Processor Port Sharing. Creates an FEP port-sharing group consisting of Ports 1 and 2.

Enab 1 – FEP transmissions and controls pass through Port 1 to be broadcast onto the aggregate data stream and to

Port 2. Data to be received by the FEP comes from both the aggregate data stream and Port 2.

Disab – Disables the FEP port-sharing feature for Ports 1 and 2.

P3/4 FEPSh: Disab

Next Enab Disab Prev

Ports 3 and 4 FEP Port Sharing. Creates an FEP port-sharing group consisting of Ports 3 and 4. This configuration

option will not appear if a 2-port MCMP/TDM Flex is installed.

Enab 1 – FEP transmissions and controls pass through Port 3 to be broadcast onto the aggregate data stream and to

Port 4. Data to be received by the FEP comes from both the aggregate data stream and Port 4.

Disab – Disables the FEP port-sharing feature for Ports 3 and 4.

P5/6 FEPSh: Disab

Next Enab Disab Prev

Ports 5 and 6 FEP Port Sharing. Creates an FEP port-sharing group consisting of Ports 5 and 6. This configuration

option will not appear if a 2-port MCMP/TDM Flex is installed.

Enab 1 – FEP transmissions and controls pass through Port 5 to be broadcast onto the aggregate data stream and to

Port 6. Data to be received by to the FEP comes from both the aggregate data stream and Port 6.

Disab – Disables FEP port-sharing feature for Ports 5 and 6.

1 When enabled, the CTS lead is forced ON (high) for the odd-numbered port in the FEP port-sharing group.

Configuration Option Tables

4-53610-A2-GB48-70 March 1999

Table 4-1

(4 of 4)

MCMP/TDM Setup Configuration Options

MCMP Bckup: MCMP

Next MCMP TDM Prev

MCMP Backup. Determines the mode for backup with MCMP installed. Valid only when an ISDN or a Switched 56 DBM

is installed.

MCMP – Enables backup in MCMP mode.

TDM – Enables backup in TDM mode. Results in FEP port sharing at the control; no aggregate switch with EBrdg. The

V.32 analog DBM is forced to TDM.

Table 4-2

(1 of 2)

Digital Bridge Setup Configuration Options

MUX Funct: CBrdg

Next TDM MCMP CBrdg EBrdg None Prev

MUX Function. MCMP/TDM Circuit Card Function with either CBrdg or EBrdg mode selected. Initiates Bridge mode for a

central-site bridge or an extended bridge configuration.

TDM – TDM mode for multiplexing or digital-sharing configuration.

MCMP – MCMP mode for multichannel multipoint operation or digital-sharing configuration.

CBrdg – Bridge mode for a central-site bridge configuration; an installed DBM must be disabled.

EBrdg – Bridge mode for an extended bridge configuration; an installed DBM must be disabled.

None – Basic mode configuration; disables MCMP/TDM circuit card. None of the following configuration options appear.

Bridge Rate: =DSU

Next =DSU 64 56 28.8 24.0 19.2 16.8 14.4 12.0 9.6 4.8 2.4 Prev

Bridge Rate. Data rate in kbps on the digital bridge.

=DSU – Choose this configuration value for a CBrdg when the digital bridge operates at the same speed as the DSU.

Not valid for EBrdg. This configuration value causes the DSU to connect the controlling DTE to the aggregate data path

of the digital bridge, and to connect to the DCE port on the digital bridge to the DDS core. Select this value for:

•Multipoint LADS operation.

•Multipoint dial backup where partial backup is possible.

64 to 2.4 kbps – For multipoint dial backup, if the DSU’s speed is higher than the highest possible speed of an analog

DBM, configure the digital bridge to operate at a speed that maximizes data throughput. Only full backup is possible, and

is set manually from the front panel or initiated by an NMS. When full backup goes into effect, the DSU switches the data

path from DTE/DSU to DTE/digital bridge, and enables internal timing at the selected Bridge Rate.

Brdg Timing: Int

Next Int Auto Prt Prt2 Prt3 Prt4 Prt5 Prt6 Prev

Bridge Timing. In CBrdg mode, this timing is used when in full backup where the backup is initiated from the Backup

branch. In EBrdg mode, the Bridge Timing selected is always used.

Int – Timing taken internally from the unit; primarily used for analog backup.

Auto – Timing taken from any of the ports that have DTR high; primarily used for switched 56 kbps backup.

Prt1 to Prt6 – Timing is taken from the specified port. Ports 3 through 6 do not appear with a 2-port MCMP/TDM Flex.

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Table 4-2

(2 of 2)

Digital Bridge Setup Configuration Options

Share DevA: Enab

Next Enab Prev

Sharing Device A. This configuration option creates a digital-sharing group to configure for contention. This configuration

option can be used with an LPDA-2 configuration.

Enab – This configuration option is Forced On (enabled) in Bridge mode.

Lowest Port#: DCE

Next DCE 2 3 4 5 Prev

Lowest Port Number. Allows you to specify the number of active ports on the digital bridge. This configuration option

displays when Sharing Device A is enabled and does not appear when a 2-port MCMP/TDM Flex is installed.

NOTE: Accepting the defaults for configuration options Lowest Port Number and Number of Ports in Group places

Ports DCE and 2 in this digital-sharing group.

DCE – Select for multipoint LADS operation or multipoint dial backup where partial backup is possible. Bridge Rate is set

to =DSU in this table.

2 to 5 – Selects the number of ports for multipoint dial backup where only full backup is possible [Rate(Kbps) 19.2 kbps

or greater].

#Ports in Gp: 6

Next 2 3 4 5 6 Prev

Number of Ports in Group. Allows you to specify the number of active ports on the digital bridge. This configuration

option displays when Sharing Device A is enabled and does not appear when a 2-port MCMP/TDM Flex is installed.

Ports from the digital bridge can be added or dropped by changing number of ports in the port-sharing group.

2 to 6 – Selects the number of ports to be included in the digital-sharing group.

Port Cntrl: Host

Next Host DSD Prev

Port Control. Specifies how to handle contention between the ports in the ports in a port-sharing group. This

configuration option is only displayed if Sharing Device A is enabled.

In multipoint dial backup, ports are not automatically dropped from the digital bridge if the backup call is lost. A DBM that

has dropped a backup call will no longer be raising RTS at the digital bridge port and is effectively isolated from the

digital bridge. If the backup call was dropped due to a network problem and a new call is successful, the DBM is able to

raise RTS and again work with the digital bridge.

Host – No port contention. Causes CTS to turn ON for any port that has RTS turned ON, even if another port is active

(RTS ON). The host protocol must enforce the order of transmission to avoid collisions. The connected DBM-D, DBM-I,

DBM-S, or DBM-V is not required to have V.13 switched-carrier emulation.

NOTE: In CBrdg mode, Host is the only available setting if Diag Type is set to NonD. In EBrdg mode, Host

should be used if the extended bridge is connected to an MCMP control or a nondisruptive CBrdg.

DSD – Digital-Sharing Device (port contention). Controls CTS to ensure that only one port is active at a time. All ports

must be configured with RTS Control set to DTE. A subsequent DTE that has RTS turned ON does not have its CTS

turned ON until the first DTE has lowered its RTS. Selection of the next port to transmit when more than one port has

raised RTS is based upon the port; the lowest-numbered port has the highest priority.

Share DevB: Disab

Next Disab Prev

Sharing Device B. This configuration option creates a digital-sharing group to configure for contention.

Disab – This configuration option is Forced Off (disabled) in Bridge mode.

Configuration Option Tables

4-73610-A2-GB48-70 March 1999

Table 4-3

(1 of 4)

MCMP/TDM Port Configuration Options*

Async→Sync: Disab

Next Enab Disab Prev

Asynchronous-to-Synchronous Conversion. Sets each port for asynchronous or synchronous operation. The DSU

verifies that an asynchronous setting is not underspeed if the sum of the port speeds equals the aggregate speed.

Enab – Configures the port as asynchronous (asynchronous-to-synchronous conversion takes place).

Disab – Configures the port as synchronous.

Async Rate: =Sync

Next =Sync 1800 1200 600 300 150 Prev

Asynchronous Rate in bps. Specifies the rate of an asynchronous port. The asynchronous rate must be less than or

equal to the synchronous port speed. Use the DSU PrtSp(Kbps) configuration option to set the synchronous port speed.

This configuration option appears if the Async→Sync configuration option is enabled.

NOTE: When 1800 bps is selected, the DSU verifies that the synchronous port speed is 2400 bps or greater. If only

one stop bit is used, the asynchronous rate cannot be equal to half the synchronous rate.

=Sync – Asynchronous rate is the same as the synchronous rate.

1800 to 150 – Select the rate in bps of the asynchronous port.

AsyncBit/Char: 8

Next 6 7 8 9 10 Prev

Asynchronous Bits per Character. Specifies the length of a character, including the parity bit but excluding the start and

stop bits. This configuration option appears if the Async→Sync configuration option is enabled.

6 to 10 – Select the asynchronous bits per character.

Stop Bits: 1

Next 1 2 Prev

Stop Bits. Specifies the number of stop bits in an asynchronous character. This configuration option appears if the

Async→Sync configuration option is enabled and the AsyncBit/Char configuration option is not set to 10. If the

AsyncBit/Char configuration option is set to 10, stop bits is set to 1.

1 to 2 – Select the number of stop bits to be used.

Overspeed: 2.50

Next 1.25 2.50 Prev

Overspeed. Selects the overspeed percentage range of the asynchronous-to-synchronous converter. This configuration

option displays when MUX Funct is set to TDM and does not display with a MUX SW version less than 5.xx.

1.25 – Selects the basic overspeed range. Basic range provides 1.25% overspeed in the DTE asynchronous data rate.

2.50 – Selects the overspeed percentage for extended range. Extended range provides 2.5% overspeed in the DTE

asynchronous data rate.

RTS Cntrl: DTE

Next FrcOn DTE Prev

Request-to-Send Control. Controls the internal RTS lead operation.

NOTE: Refer to next configuration option, Transmitter Carrier Select, for a description of constant-carrier and

switched-carrier operation.

FrcOn – DSU keeps the internal RTS ON continuously. Any data appearing on the transmitted data (TXD) lead from the

DTE is transmitted immediately. Choose this configuration value for constant-carrier operation.

DTE – DSU turns RTS ON when the external RTS is turned ON. CTS is turned ON or Off by the external control signal

RTS. Choose this configuration value for switched-carrier operation.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

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Table 4-3

(2 of 4)

MCMP/TDM Port Configuration Options*

TxCarrSel: Const

Next Const Cntrl Prev

Transmitter Carrier Select. Enables the TDM transmitter circuitry to simulate switched-carrier operation using the

V.13 codes on an individual channel. The simulated switched-carrier operation is also referred to as pseudo-controlled

carrier (PCC) mode. Required for applications where the receiving DTE expects a raised LSD lead prior to receiving

data. For MCMP mode, this configuration option is ignored except during dial backup when the MCMP Backup

configuration option is set to TDM (Table 4-1) or a V.32 DBM is installed.

NOTE: A port can be configured for switched-carrier operation in one direction and constant-carrier operation in the

other direction.

Const – Transmit Constant Carrier (constant-carrier operation). The V.13 codes are not sent. The corresponding remote

TDM or MCMP port must be configured for Receiver Constant Carrier or Mark (RxCarrSel set to Const or Mark).

Configure each port in a digital-sharing group for Constant Carrier operation (TxCarrSel set to Const).

Cntrl – Transmit Controlled Carrier (switched-carrier operation, PCC mode). The DSU transmits the V.13 codes over the

DDS line when the port RTS changes state. When RTS is turned ON, the DSU transmits a code that turns ON LSD at

the remote TDM or MCMP port before CTS is turned ON at the local TDM or MCMP port. When RTS is dropped, the

DSU sends a code that turns Off LSD at the remote TDM or MCMP port. The corresponding remote TDM or MCMP port

must be configured for Receiver Controlled Carrier (RxCarrSel set to Cntrl). This selection is not valid if the DSU is part

of a Digital-Sharing Device (DSD) group. See the Mark setting in the next configuration option, RxCarrSel.

RxCarrSel: Const

Next Const Cntrl Mark Prev

Receiver Carrier Select. Enables the TDM receiver circuitry to simulate switched-carrier operation using the V.13 codes

on an individual channel. Configuration values Const and Cntrl for Receiver Carrier Select are both valid choices for a

port belonging to a digital-sharing group. Not valid for MCMP mode.

Const – Receiver Constant Carrier (constant-carrier operation). The receiving DSU does not look for V.13 codes used

by the V.13 protocol and does not toggle LSD.

Cntrl – Receiver Controlled Carrier for switched-carrier operation in PCC mode (see PCC Buffer, next configuration

option). The receiving DSU looks for V.13 codes used by the V.13 protocol that indicate the transition of RTS at the

remote TDM port; the receiving DSU toggles LSD as appropriate.

Mark – If 30 consecutive marks are received, received Line Signal Detect (LSD) goes Off at the port. Received LSD

goes ON again just before the first space. TxCarrSel must be set to Const at the remote unit. This configuration option is

used primarily when the remote DSU has a DSD group.

PCC Buffer: Disab

Next Enab Disab Prev

Pseudo-Controlled Carrier Buffer. Intercepts the V.13 codes used by the V.13 protocol so they do not pass to the

receiving DTE. This configuration option is only valid when RxCarrSel is set to Cntrl. Not valid for MCMP.

For an asynchronous port configured for switched-carrier operation, set PCC Buffer to Enab.

For a synchronous port configured for switched-carrier operation, PCC Buffer can be disabled or enabled, depending on

whether the V.13 codes disrupt communication at the receiving DTE.

NOTE: Enabling this configuration option can corrupt the end-of-message for some synchronous protocols.

Enab – Enables PCC Buffer to intercept V.13 codes.

Disab – Disables PCC Buffer.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

Configuration Option Tables

4-93610-A2-GB48-70 March 1999

Table 4-3

(3 of 4)

MCMP/TDM Port Configuration Options*

Elast Stor: Disab

Next Enab Disab Prev

Elastic Store. Elastic Store hardware consists of a transmit buffer (register). Serial data from the extended circuit is

clocked into the DSU elastic store using a clock (on EIA-232 Pin 24 or V.35 Pins U and W) provided by the extended

circuit received clock lead (on Pin 17). The DSU uses its own system timing to clock data out of the buffer.

Elastic Store is reset on power-up, overflow, or after the RTS lead makes an Off-to-ON transition. After reset, the elastic

store can drift by ±5 bits in TDM mode and ±3 bits in MCMP mode before overflow occurs.

Enab – Use Enable if you have an extended network.

Disab – Use Disable if you do not have an extended network.

RTS/CTS Del: 0

Next Chang Prev

Request-To-Send to Clear-To-Send Delay. Allows for an additional delay between the time that RTS is turned ON and

CTS is turned ON. A delay is sometimes required for multiplexed applications operating in switched-carrier operation

with primary channel extended circuits. This configuration option must provide enough delay so that the last DSU in the

circuit has time to train and be ready to accept data before CTS is turned ON.

Chang – Set the RTS-to-CTS delay to the desired value, from 0 to 1040 milliseconds in 8 milliseconds increments.

Port speeds of 38.4 and higher can only use delays of up to 504 milliseconds.

DTR Alarm: Disab

Next Enab Disab Prev

Data Terminal Ready Alarm. Causes the DSU to report an alarm for the port if the port’s DTR lead is Off for more than

30 seconds. The front panel or async terminal displays DTR Alarm and reports the alarm to NMS.

Enab – If the port’s DTR lead turns Off for 30 seconds, the DSU reports an alarm.

Disab – Regardless how long the port’s DTR lead is Off, no alarm is reported.

AntiStream: Disab

Next Chang Prev

AntiStreaming. Specifies if the port is monitored for streaming terminal alarms. The purpose of Antistreaming is to

provide network protection against a streaming DTE (a defective DTE that has its RTS lead constantly turned ON) by

disabling the DTE.

If the DTE turns ON RTS longer than the time specified for the AntiStreaming configuration option, the tributary DSU

turns ON its alarm indicator and clamps the port’s leads until RTS is turned Off. Although the DTE port is not allowed to

send, it is capable of being tested or disabled. A test resets the streaming terminal timer. When the test is completed, the

timer starts again.

Upon detecting that RTS is no longer turned ON, the DSU turns Off its alarm and resets the streaming timer, and allows

the DTE port to send data once again.

At tributary locations, this configuration option is generally used for digital-sharing operation and for MCMP operation.

This configuration option has an effect only at a port configured with RTS Control set to DTE. It is not allowed when RTS

Control is set to FrcOn (set in this table).

Chang – Set timer to any value from 1 to 100 seconds in increments of 1, or Disab. When the timer reaches 100, adding

to the timer disables this configuration option. With an async terminal, entering 0 (zero) disables this configuration

option.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

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Table 4-3

(4 of 4)

MCMP/TDM Port Configuration Options*

DSR FrcOn: Enab

Next Enab Disab Prev

Data Set Ready Forced On. Overrides any other configuration options controlling the Data Set Ready lead.

Enab – DSR remains ON as long as the DSU is working, regardless of tests and network alarms.

Disab – DSR functions as an active lead reflecting various test and alarm conditions and other configuration options.

DSR on Tst: Enab

Next Enab Disab Prev

Data Set Ready On in Test. Controls the DSR lead during testing.

Enab – DSR is ON continuously during testing, allowing a DTE that relies on DSR being ON to send test messages to

the DSU.

Disab – Use to set DSR to Off during testing.

Extend Chan: No

Next Yes No Prev

Extend Main Channel. Specifies whether an extended network has main channel connectivity between the DTE port of

the tributary DSU and the DTE port of the extended DSU during a test condition.

NOTE: This configuration option is not displayed for a single-port multipoint tributary DSU or a tributary with

DBM Diag Type set to Disr or None.

Yes – This configuration option extends main channel connectivity between the DTE ports of the tributary and extended

DSU in an extended network.

No – Use No if you do not have an extended network.

Upstrm Port:Prt1

Next Prt1 Prt2 Prt3 Prt4 Prt5 Prt6 Prev

Upstream Port. If an extended control DSU has its main (primary) channel connected to a tributary DSU and the

tributary’s Extend Channel configuration option is set to Yes, set this configuration option to the upstream port number.

Select Prt1 if the tributary DSU is operating in single port mode. Ports 3 through 6 do not appear when a 2-port

MCMP/TDM Flex is installed.

Prt1 to Prt6 – Selects the upstream port number.

DTE Port: EIA232

Next EIA232 V.35 Prev

DTE Port. Selects the alternate Port 1 or the Port 2 through port 6 interface for data transmission. For MCMP/TDM Flex

models, each port is set separately. See the

Reconfiguring Ports

section in Chapter 2.

EIA232 – Selects EIA-232 interface connector operation for the port.

V.35 – Selects V.35 interface connector operation for the port.

DCE Type: Analg

Next Analg Digtl Prev

DCE Type. Appears when FEP Port Sharing is enabled (Table 4-1). Applies to even numbered ports only. When backup

initiated, this configuration option specifies what timing source will automatically be in effect.

Analg – Select for analog connection; includes V.32 DBM.

Digtl – Select for digital connection; includes Switched 56 and ISDN DBMs.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

Configuration Option Tables

4-113610-A2-GB48-70 March 1999

Table 4-4

(1 of 3)

Digital Bridge Port Configuration Options*

RTS Cntrl: FrcOn

Next FrcOn DTE Prev

Request-to-Send Control. Controls the response of the internal RTS lead.

FrcOn – This configuration option is available for CBrdg; not valid for EBrdg.

DTE – DSU turns ON RTS when the external RTS is turned ON. CTS is turned ON or Off by the external control signal

RTS. Choose this configuration value for Bridge mode.

TxCarrSel: Const

Next Const Cntrl Prev

Transmitter Carrier Select. This configuration option is ignored in Bridge mode.

RxCarrSel: Const

Next Const Cntrl Mark Prev

Receiver Carrier Select. This configuration option is ignored in Bridge mode.

PCC Buffer: Disab

Next Enab Disab Prev

Pseudo-Controlled Carrier Buffer. This configuration option is ignored in Bridge mode.

Elast Stor: Disab

Next Enab Disab Prev

Elastic Store. Elastic Store hardware consists of a transmit buffer (register). Serial data from the extended circuit is

clocked into the DSU elastic store using a clock (on EIA-232 Pin 24 or V.35 Pins U and W) provided by the extended

circuit received clock lead (on Pin 17). The DSU uses its own system timing to clock data out of the buffer.

Elastic Store is reset on power-up, overflow, or after the RTS lead makes an Off-to-ON transition. After reset, the elastic

store can drift by ±8 bits before overflow occurs.

Enab – Use Enable if you have an extended network.

Disab – Use Disable if you do not have an extended network.

RTS/CTS Del: 0

Next Chang Prev

Request-To-Send to Clear-To-Send Delay. Allows for an additional delay between the time that RTS is turned ON and

CTS is turned ON. This is useful for multiplexed applications operating in switched-carrier operation with primary channel

extended circuits. This configuration option must provide enough delay so that the last modem in the circuit has time to

train and is ready to accept data before CTS is turned ON.

Chang – Set the RTS-to-CTS delay to the desired value (from 0 to 1040 milliseconds in 8 millisecond increments).

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

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Table 4-4

(2 of 3)

Digital Bridge Port Configuration Options*

DTR Alarm: Disab

Next Enab Disab Prev

Data Terminal Ready Alarm. Causes the DSU to report an alarm for the port if the port’s DTR lead is Off for more than

30 seconds. The front panel or async terminal displays DTR Alarm and reports the alarm to NMS. The ability to report

DTR as an alarm is independent of port speed; the alarm is reported even if the speed of the port is set to 0 bps.

Enab – If the port’s DTR lead turns Off for 30 seconds, the DSU reports an alarm.

Disab – Regardless how long the port’s DTR lead is Off, no alarm is reported.

AntiStream: Disab

Next Chang Prev6

AntiStreaming. Specifies if the port is monitored for streaming terminal alarms. The purpose of Antistreaming is to

provide network protection against a streaming DTE (a defective DTE that has its RTS lead constantly turned ON) by

disabling the DTE.

If the DTE turns ON RTS longer than the time specified for the AntiStreaming configuration option, the tributary DSU

turns ON its alarm indicator and clamps the port’s leads until RTS is turned Off. Although the DTE port is not allowed to

send, it is capable of being tested or disabled. A test resets the streaming terminal timer. When the test is completed, the

timer starts again.

Upon detecting that RTS is no longer turned ON, the DSU turns Off its alarm and resets the streaming timer, and allows

the DTE port to send data once again.

This configuration option has an effect only at a port configured with RTS Control set to DTE. It is disabled when RTS

Control is set to FrcOn.

Chang – Set timer to any value from 1 to 100 seconds in increments of 1, or Disab. Incrementing the value when it

reaches 100 disables this configuration option. With an async terminal, enter 0 (zero) to disable this configuration option.

DSR FrcOn: Disab

Next Enab Disab Prev

Data Set Ready Forced On. Overrides any other configuration options controlling the Data Set Ready lead.

Enab – DSR remains ON as long as the DSU is working, regardless of tests and network alarms.

Disab – DSR functions as an active lead reflecting various test and alarm conditions and other configuration options.

DSR on Tst: Disab

Next Enab Disab Prev

Data Set Ready On in Test. Controls the activity of the DSR lead during testing.

Enab – DSR is ON continuously during testing, allowing a DTE that relies on DSR being ON to send test messages to

the DSU.

Disab – DSR is Off during testing.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

Configuration Option Tables

4-133610-A2-GB48-70 March 1999

Table 4-4

(3 of 3)

Digital Bridge Port Configuration Options*

Extend Chan: No

Next Yes No Prev

Extend Channel. Specifies whether an extended network has main channel connectivity between the DTE port of the

tributary DSU and the DTE port of the extended DSU during a test condition.

NOTE: This configuration option is not displayed for a single-port multipoint tributary DSU or a tributary with

DBM Diag Type set to Disr or None.

Yes – Set this configuration option to Yes to extend main channel connectivity between the DTE ports of the tributary

and extended DSU in an extended network.

No – Use No if you do not have an extended network.

Upstrm Port:Prt1

Next Prt1 Prt2 Prt3 Prt4 Prt5 Prt6 Prev

Upstream Port. If an extended control DSU has its main (primary) channel connected to a tributary DSU and the

tributary’s Extend Channel configuration option is set to Yes, set this configuration option at the control DSU to the

upstream DSU’s port number. Select Prt1 if the tributary DSU is operating in single-port mode.

NOTE: This configuration option is not displayed for a single-port multipoint tributary DSU or a tributary with

DBM Diag Type set to Disr or None.

Prt1 to Prt6 – Selects the upstream port number.

DTE Port: EIA232

Next EIA232 V.35 Prev

DTE Port. Selects the alternate Port 1 or the Port 2 through Port 6 interface for data transmission. For TDM/Flex or

MCMP/Flex models, each port is set separately. See the

Reconfiguring Ports

section in Chapter 2.

EIA232 – Selects EIA-232 interface connector operation for the port.

V.35 – Selects V.35 interface connector operation for the port.

* The menu paths for Port 1 through Port 6 are identical; each port is set separately.

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Table 4-5

DSU Port Speed Configuration Options for MCMP/TDM

Prt1(9.6): 9.6

Next 64 56 48 38.4 32 28.8 24.0 19.2 18.8 18.0 16.8 14.4

12.0 9.6 9.2 8.4 7.2 4.8 4.4 4.0 2.4 2.0 1.2 Disab Prev

Port 1 Speed. Primary DSU port speed in kbps on Port 1. Must be set to the same value in the remote DSU.

Choose a port speed for Port 1, then press Next to bring up the speed selection menu for Port 2. Continue selecting port

speeds for each enabled port until you enter a port speed for all ports. The default for Ports 2 through 6 is Disab. Ports 3

through 6 do not appear when a 2-port MCMP/TDM Flex is installed.

NOTE: In MCMP mode, the DSU verifies that the sum of the individual port speeds does not exceed 48 kbps. The data

rate, set via the DSU’s Rate(Kbps) configuration option, must be set to 56 kbps. Port speeds in DSD and FEP

port-sharing groups are counted once per group when calculating used bandwidth.

In MCMP mode, the following port speeds do not appear:

64, 56, 32, 28.8, 24.0, 18.8, 18.0, 9.2, 8.4, 4.4, 4.0, and 2.0 kbps.

NOTE: In TDM mode, both ports in an FEP port-sharing group must be configured to operate at the same port speed

when using the 18.8, 9.2, and 4.4 kbps. For all ports, the DSU verifies that the sum of the individual port speeds

does not exceed the data rate set in the DSU’s Rate(Kbps) configuration option. If the sum of the port speeds

equals the aggregate data rate, an underspeed port selection is required. Port speeds in DSD and FEP

port-sharing groups are only counted once per group when calculating used bandwidth.

In TDM Mode with the Async→Sync configuration option is enabled, the following port speeds will not appear:

32, 24.0, 18.8, 18.0, 9.2, 8.4, 4.4, 4.0, and 2.0 kbps.

64 to 1.2 kbps – Sets the port speed.

Disab – Sets port speed to 0 (zero) bps.

Underspeed: Disab

Next Disab Prt1 Prt2 Prt3 Prt4 Prt5 Prt6 Prev

Underspeed Port. Selects which port is run underspeed to allow for in-band framing, if used. One port must run

underspeed if the sum of the port speeds equals the aggregate data rate [Rate(Kbps)]. A port used for asynchronous

operation cannot be set for underspeed. Ports 3 through 6 do not appear when a 2-port TDM/Flex is installed.

NOTE: This configuration option is available in TDM mode. Underspeed cannot be used with 18.8, 9.2, or 4.4 kbps port

speeds. The DSU verifies that an underspeed port is selected if the sum of the port speeds equals the primary

data rate.

Disab – No port runs underspeed during primary operation.

Prt1 to Prt6 – Selected port runs underspeed during primary operation.

Table 4-6

Port Speed Channel-to-Port Assignment Configuration Options for MCMP

AssgmntPrt1: A

Next A B C D E F G H None Prev

Channel Assignment to Port 1. At the control site, any of the channels (A through H) can be assigned to any of the six

ports (e.g., channel F→Port 1). Assign only one channel to one port. With FEP port sharing, the same channel is

assigned to both ports in the group. At one or more tributary sites with Port Control set to Host, a channel can be

assigned to as many ports as wanted to establish the virtual multiport circuit for that channel. This configuration option is

available when MUX Funct is set to MCMP. Ports 3 through 6 do not appear when a 2-port MCMP/Flex is installed.

Choose a channel assignment for Port 1, then press Next to bring up the channel selection menu for Port 2. Continue

selecting channel assignments until channels have been assigned to all ports. The default for Ports 2 through 6 is None.

A to H – Assigns one channel to one port.

None – Assigns no channel to Port 1.

A-13610-A2-GB48-70 March 1999

Data Service Unit Menu

DSU Menu Tree A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Top-Level Menu A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Factory Default Settings A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU Menu Tree

The menu tree and all possible configuration options

are presented on the next two pages. Configuration

options appear or are filtered based on settings in effect

and additional installed hardware features.

Top-Level Menu

The DSU operation is presented as menu selections

that branch downward from the top-level of the menu tree.

Factory Default Settings

Table A-1 presents all MUX factory default

configuration options in effect when the factory defaults

are loaded and saved into active. The unit is shipped with

TDM as the default. Refer to Chapter 4 for details

regarding MUX configuration options.

For additional factory default configuration options,

refer to Document No.:

•3610-A2-GB46 for DSUs

•3610-A2-GB49 for DBMs

Table A-1

(1 of 2, continued on page A-4)

Factory Default MUX Configuration Options

MUX FacC

Control FacT

Tributary FacB

Digital Bridge MPTC Multipoint

Control MPTT Multipoint

Tributary

MUX Function MCMP MCMP CBridge MCMP MCMP

Bridge Rate =DSU =DSU =DSU =DSU =DSU

Bridge Timing Internal Internal Auto Internal Internal

Share DevA Disable Disable Enable Disable Disable

Lowest Port# 1 1 DCE 1 1

# Ports in Group 2 2 6 2 2

Port Control Host Host Host Host Host

Share DevB Disable Disable Disable Disable Disable

Lowest Port# 3 3 3 3 3

# Ports in Group 2 2 2 2 2

Port Control Host Host Host Host Host

Port1/2 FEPSh Disable Disable Disable Disable Disable

Port3/4 FEPSh Disable Disable Disable Disable Disable

Port5/6 FEPSh Disable Disable Disable Disable Disable

MCMP Backup* MCMP MCMP MCMP MCMP MCMP

*MCMP Backup defaults to TDM when a V.32 analog DBM is installed.

A

COMSPHERE 3600 Series Data Service Units

A-2 March 1999 3610-A2-GB48-70

Local Remot

Stat Bckup Test

TOP-LEVEL MENU

H/S DTE CircQ ID TPwr

Port

Select

DSU DBM

Abort Devic Lpbk Lamp

LL DTE DL RL

Start Start Start

Port

Select Port

Select Port

Select

Port

Select

Address

Address Address

Run

Tim # Blocks

Displ Clr

EE

Devic Expan Subn

BERT

Port

Select

Subn Selective

Msgs

Address Read Clear

DT

496-14331a-04

Abort Bkup Dial DrBU Disc →Dial →DDS AggSw

DTone

→Net

I

NOTE

For additional details refer to Chapter 4,

Configuration Option Tables

, and

Appendix B,

Configuration Worksheets

.

ABBREVIATIONS DBM Dial Backup Module EBrdg Extended Bridge MPTC Multipoint Control

→ DDS Switch to DDS Path DDD Direct Distance Dialing Enab Enable MPTT Multipoint Tributary

→ Dial Switch to DDD Path DDS Digital Data Service Expan Expanded Health and Service MUX Multiplexer

Acq Acquire Devic Device ExtL External Leads NetINetwork Interface

Addr Address Diag Diagnostic FacB Factory Bridge Opts Configuration Options

ADp Advanced Diagnostic protocol Dir Directory FacC Factory Control PList Poll List

AggSw Aggregate Switch Disab Disable FacT Factory Tributary PrtSp Port Speed

Bckup Backup Disc Disconnect FB1 Fallback 1 Pswrd Password

BERT Bit Error Rate Test Displ Display Gen General Remot Remote Mode

CBrdg Central-Site Bridge DL Digital Loopback H/S Health and Status Remt Remote

Chan Channel to Port DPII DATAPHONE II ID Identity RL Remote Digital Loopback

ChgMd Change Mode DrBU Drop Backup LEDs Light Emitting Diodes SPID Service Profile Identifier

CID Customer Identifier DSU Data Service Unit LL Local Loopback Subn Subnetwork Health and Status

CircQ Circuit Quality DT Digital Test Lpbk Loopback TDM Time Division Multiplexer

Clr Clear DTE Data Terminal Equipment LPDA Link Problem Determination Aid Term Async Terminal

Confg Configure DTone Dial Tone MCMP Multichannel Multipoint TPwr Terminal Power

Ctrl Control EE End-to-End Test Msgs Messages TxCtl Transmitter Control

Data Service Unit Menu

A-33610-A2-GB48-70 March 1999

Confg Ctrl

Opts PList Addr ChgMd

Displ Chang Add Acq

Activ Delet Save DPII ADp

Remt

Address

Activ Usr1 Usr2 Usr3

Activ Usr1

Usr2

Usr3

FacC

FacT

FacB

Load

SAVE DSU DBM Gen Bkup MUX LPDA

Copy Setup Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Remt Usr1 Usr2 Usr3

Address

Activ Usr1 Usr2 Usr3 TDM MCMP

DSU DBM

TxCtl LEDs ExtL

DSU DBM Ports Displ Chang

Enab Disab

Skip

Clr

Diag

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Copy

From

Devic

Activ

Port Select

Dir Phone

Chang Clr

496-14331b-05

DSU DBM Gen Chan

CBrdg EBrdg None

PrtSp

All Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

Copy

To

Term

Enab Disab Pswrd CID

Pswrd

MenuSPID

Chang Clr

Save Enab Disab

FB1

Chang Clr

Chang Clr

MPTC

MPTT

Reset

COMSPHERE 3600 Series Data Service Units

A-4 March 1999 3610-A2-GB48-70

Table A-1

(2 of 2)

Factory Default MUX Configuration Options

MUX Port

n

FacC

Control FacT

Tributary FacB

Digital Bridge MPTC Multipoint

Control MPTT Multipoint

Tributary

Async–>Sync Disable Disable Disable Disable Disable

AsyncRate =Sync =Sync =Sync =Sync =Sync

AsyncBit/Char 8 8 8 8 8

Stop Bits 1 1 1 1 1

Overspeed 2.50 2.50 2.50 2.50 2.50

RTS Control DTE DTE DTE DTE DTE

TxCarrierSelect Constant Constant Constant Constant Constant

RxCarrierSelect Constant Constant Constant Constant Constant

PCC Buffer Disable Disable Disable Disable Disable

Elastic Store Disable Disable Enable Disable Disable

RTS/CTS Delay 0 0 0 0 0

DTR Alarm Disable Disable Disable Disable Disable

AntiStream Disable Disable Disable Disable Disable

DSR FrcOn Enable Enable Disable Enable Enable

DSR on Test Enable Enable Disable Enable Enable

Extend Channel No No No No No

Upstream Port Port 1 Port 1 Port 1 Port 1 Port 1

DTE Port EIA232 EIA232 EIA232 EIA232 EIA232

DCE Type Analog Analog Analog Analog Analog

DSU Port Speed FacC FacT FacB MPTC MPTT

Port 1 9.6 kbps 9.6 kbps 9.6 kbps 9.6 kbps 9.6 kbps

Port 2 — Port 6 Disable Disable 9.6 kbps Disable Disable

Underspeed Disable Disable Disable Disable Disable

MCMP Channel FacC FacT FacB MPTC MPTT

Assignment Port 1 A A A A A

Assignment Port 2 B B B B B

Assignment Port 3 C C C C C

Assignment Port 4 D D D D D

Assignment Port 5 E E E E E

Assignment Port 6 F F F F F

B-13610-A2-GB48-70 March 1999

Configuration Worksheets

Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

This section contains worksheets for:

•MCMP mode

•TDM mode

•Digital Bridge mode

Each set of worksheets includes the option sets with

configuration options and values applicable for the

selected MUX mode.

Use the worksheets for:

•Reference

•Recording changes to options

•Planning changes to default settings

Use the worksheets along with Chapter 4,

Configuration Option Tables, and Appendix A,

Data Service Unit Menu.

B

COMSPHERE 3600 Series Data Service Units

B-2 March 1999 3610-A2-GB48-70

This page intentionally left blank.

Configuration Worksheet for MCMP Mode (1 of 3)

Date:________________________________________________ Location:_____________________________________________ Local Phone Number: ( )____________________________

Device:______________________________________________ Local Address:_________________________________________  DBM Installed

Serial Number:________________________________________ Tributary Network Address:_______________________________  SNA Diagnostic Interface (LPDA-2) Enabled

MUX Setup

Configuration Options Value

MUX Funct TDM, MCMP, CBrdg, EBrdg, None

Share DevA Enab, Disab

Lowest Port# 1, 2, 3, 4, 5

#Ports in Gp 2, 3, 4, 5, 6

Port Cntrl Host, DSD

Share DevB Enab, Disab

Lowest Port# 1, 2, 3, 4, 5

#Ports in Gp 2, 3, 4, 5, 6

Port Cntrl Host, DSD

P1/2 FEPSh Enab, Disab

P3/4 FEPSh Enab, Disab

P5/6 FEPSh Enab, Disab

MCMP Bckup MCMP, TDM

ISDN and Switched 56 kbps Digital DBMs only

 Ports 3–6 are not available for 2-port MCMP/TDM Flex models

Available for MCMP/Flex with DSU firmware version 6.33 or greater

Configuration options that do not appear when Full mode is disabled

using Menu from the Configuration branch

Prt3

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel Const, Cntrl

RxCarrSel Const, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor Enab, Disab

RTS/CTS Del 0–1040 ms (8 ms increments)

DTR Alarm Enab, Disab

AntiStream Disab, 1–100 sec (async terminal = 0–100)

DSR FrcOn Enab, Disab

DSR on Tst Enab, Disab

Extend Chan Yes, No

Upstrm Port  Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port EIA232, V.35

DCE Type Analg, Digtl

Prt1

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel Const, Cntrl

RxCarrSel Const, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor Enab, Disab

RTS/CTS Del 0–1040 ms (8 ms increments)

DTR Alarm Enab, Disab

AntiStream Disab, 1–100 sec (async terminal = 0–100)

DSR FrcOn Enab, Disab

DSR on Tst Enab, Disab

Extend Chan Yes, No

Upstrm Port  Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port EIA232, V.35

DCE Type Analg, Digtl

Prt4

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel Const, Cntrl

RxCarrSel Const, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor Enab, Disab

RTS/CTS Del 0–1040 ms (8 ms increments)

DTR Alarm Enab, Disab

AntiStream Disab, 1–100 sec (async terminal = 0–100)

DSR FrcOn Enab, Disab

DSR on Tst Enab, Disab

Extend Chan Yes, No

Upstrm Port  Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port EIA232, V.35

DCE Type Analg, Digtl

Prt2

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel Const, Cntrl

RxCarrSel Const, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor Enab, Disab

RTS/CTS Del 0–1040 ms (8 ms increments)

DTR Alarm Enab, Disab

AntiStream Disab, 1–100 sec (async terminal = 0–100)

DSR FrcOn Enab, Disab

DSR on Tst Enab, Disab

Extend Chan Yes, No

Upstrm Port  Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port EIA232, V.35

DCE Type Analg, Digtl

Prt5

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel Const, Cntrl

RxCarrSel Const, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor Enab, Disab

RTS/CTS Del 0–1040 ms (8 ms increments)

DTR Alarm Enab, Disab

AntiStream Disab, 1–100 sec (async terminal = 0–100)

DSR FrcOn Enab, Disab

DSR on Tst Enab, Disab

Extend Chan Yes, No

Upstrm Port  Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port EIA232, V.35

DCE Type Analg, Digtl

Configuration Worksheet for MCMP Mode (2 of 3)

Prt6

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

DSU

Configuration Options Value

Rate(Kbps) 56

TxClkSource Int, RXC, DDS

Msg Clamp AEnab, Disab

TxElasStor Enab, Disab

RxElasStor AEnab, Disab

19.2 PowrLvl DD A+6, 0, –10

64KScrambling AOn, Off

64KLatchLpbk AOn, Off

NetIntf AAggSw, Forc, Disab

NetI Timing AInt, NetI

V.54 Lpbk AEnab, Disab

Diagnostic DSU

Configuration Options Value

Diag Type NonD, Disr, None

2nd Ch(bps) A100, 400, 800, 1200, 1600

Disr Type 3600s, 3600e, Br56

Diagnostic DBM

Configuration Options Value

Diag Type NonD, Disr, None

2nd Ch(bps) A100, 400, 800, 1200, 1600

RemoteDiag AV.54, Enhan, 2500

FB DiagTyp1 LNonD, Disr, Mixed, None

FB 2nd Ch1 LA100, 400, 800, 1200, 1600

Diagnostic General

Configuration Options Value

Position Cntrl, Trib

LinkConfig Pt-Pt, M-Pt

Resp Period A1, 2, 10

Trib TimOut Amin and sec (5 sec. to 10 min.)

Diag Conn CC, DC

Link Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Network Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Packet Delay A0s, 1s, 2s, 5s

Fast Sel AEnab, Disab

DSU MCMP PrtSp

Configuration Options Value

Prt

n

(SS.S) }} 48, 38.4, 19.2, 16.8, 14.4, 12.0, 9.6, 7.2, 4.8,

2.4, 1.2, Disab

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

DBM PrtSp

Configuration Options Value

Prt

n

(SS.S) }} D*48, 38.4, 32, 28.8, 19.2, 18.0, 16.8, 14.4,

12.0, 9.6, 8.4

,

7.2, 4.8, 4.0, 2.4, 2.0, 1.2,

Disab

Underspeed }} Disab, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

DBM Fallback1 PrtSp

Configuration Options Value

Prt

n

(SS.S) LD}} 48, 38.4, 32, 28.8, 19.2, 18.0, 16.8, 14.4,

12.0, 9.6, 8.4, 7.2, 4.8, 4.0, 2.4, 2.0, 1.2,

Disab

Underspeed }} Disab, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

:Appears with MCMP/TDM Flex with DSU firmware version

6.33 or greater

LISDN DBM only

}} Ports 3–6 are not available for 2-port MCMP/TDM Flex

models.

DWhen the Async→Sync configuration option is enabled

using the MUX Port

n

branch, the following DBM PrtSp

settings will not appear: 32, 18.0, 8.4, 4.0, and 2.0 kbps

DD 19.2 Power Level defaults to +6 dB when App Module ID

displays XLOOP

n

= Port number

SS.S = Aggregate rate

AConfiguration options that do not appear when Full mode

is disabled using Menu from the Configuration branch.

Configuration Worksheet for MCMP Mode (3 of 3)

DBM

Configuration Options Value

Rate(Kbps) }56, 28.8, 24.0, 19.2, 16.8, 14.4, 12.0, 9.6,

7.2, 4.8, 2.4

TxClkSourceLL}} Int, RXC, DSU, Prt1, Prt2, Prt3, Prt4,

Prt5, Prt6

CarrLossDisc LL AYes, No

Auto Retrain LL AYes, No

Single Rate LL Yes, No

Fallback LNone, All, One

AutoAnswer AEnab, Disab

TxElasStor Enab, Disab

RxElasStor AEnab, Disab

Call Setup None, Pswrd, Clbk, Alarm

RxPwd (10 characters)

TxPwd (10 characters)

V.13 Signl Enab, Disab

Dial Test AEnab, Disab

Primary Core AYes, No

DtrCallCon Orig z, Ansr, Disab

EchoCancel HAEnab, Disab

Remote DBM DDD A2-wire, 4-wire

Wait Answer zz A90 ms, 300 ms, 500 ms, 1s, 2s, 3s, 4s, 5s

Bkup Timer Disab, 15s, 30s, 1m, 2m, 3m

SwitchTyp LNI-1, NI-2, AT&T, DMS100

FBR1(Kbps) L56

Channel to Port

Configuration Options Value

AssgmntPrt1 A, B, C, D, E, F, G, H, None

AssgmntPrt2 A, B, C, D, E, F, G, H, None

AssgmntPrt3 }} A, B, C, D, E, F, G, H, None

AssgmntPrt4 }} A, B, C, D, E, F, G, H, None

AssgmntPrt5 }} A, B, C, D, E, F, G, H, None

AssgmntPrt6 }} A, B, C, D, E, F, G, H, None

Backup

Configuration Options Value

Auto Bckup zEnab, Disab

Backup Dir 1–10

FAOnCMI zAEnab, Disab

AutoRestor Enab, Disab

NtwkTimOut z min and sec (1 sec to 30 min)

RestorTimOut z min (1 min to 60 min)

TriesTimeOut zA min (1 min to 60 min)

MultiCall zAEnab, Disab

General

Configuration Options Value

DTE Port :: EIA232, V.35

RTS Cntrl FrcOn, DTE

CTS Cntrl Std, =RTS

LSD Lead ASTD, Delay, FrcOn

CTS Lead ASTD, Delay, FrcOn

SystemStat AEnab, Disab

Circ Assur AEnab, Disab

Tst Pattern AAT&T, Std

RespondRDL AEnab, Disab

LL by DTE AEnab, Disab

RL by DTE AEnab, Disab

Bilat Lpbk AEnab, Disab

Ext Leads AExtLd, Rate, RPowr

CCN by EL AEnab, Disab

SW Vers A3.24, 4.43, 6.66, Normal

AnswExtBU AEnab, Disab

RLSD in MCMP HAYes, No

PowerOnTst Enab, Disab

LPDA-2

Configuration Options Value

LPDA-2 Enab, Disab

LPDA Address 1–256

SNA Backup Enab, Disab

Code 1 (6 digits)

Code 2 (7 digits)

Backup Directory Dial String

1

2

3

4

5

6

7

8

9

10

S1 Hardware Settings Value

DBM Interface LL Permissive (ON), Programmable (OFF)

Frame Ground/

Signal Ground Connected (ON), Disconnected (OFF)

EIA-232 Test Mode Enable (ON), Disable (OFF)

V.35 Test Mode Enable (ON), Disable (OFF)

ChgMd

Configuration Options Value

Protocol Mode DPII, ADp

LISDN DBM only

LL V.32 Analog DBM only

DDD ISDN and 2-wire Switched 56 DBMs only

}Not available for Switched 56 DBMs; defaults to 56 kbps.

}} Ports 3–6 are not available for 2-port Flex MUX models.

zNot available for a DBM-

X

or a DSU with Primary core set

to Yes; the DSU is Disabled

zz 4-wire Switched 56 DBM only

HISDN and Switched 56 Digital DBMs

:: Appears when non-Flex MCMP/TDM is installed or 6-port

MCMP/TDM Flex is installed with firmware version less

than 6.33

AConfiguration options that do not appear when Full mode

is disabled using Menu from the Configuration branch.

Configuration Worksheet for TDM Mode (1 of 3)

Date:________________________________________________ Location:_____________________________________________ Local Phone Number: ( )__________________________

Device:______________________________________________ Local Address:________________________________________ j DBM Installed

Serial Number:_________________________________________ Tributary Network Address:______________________________ j SNA Diagnostic Interface (LPDA-2) Installed

MUX Setup

Configuration Options Value Options

MUX Funct TDM, MCMPa, CBrdg, EBrdg, None

Share DevA Enab, Disab

Lowest Port# 1, 2, 3, 4, 5

#Ports in Gp 2, 3, 4, 5, 6

Port Cntrl Host, DSD

Share DevB Enab, Disab

Lowest Port# 1, 2, 3, 4, 5

#Ports in Gp 2, 3, 4, 5, 6

Port Cntrl Host, DSD

P1/2 FEPSh Enab, Disab

P3/4 FEPSh Enab, Disab

P5/6 FEPSh Enab, Disab

aMCMP option only

}} Ports 3–6 not available for 2-port MCMP/TDM Flex models

:Appears with MCMP/TDM Flex with DSU firmware version 6.33

or greater

AConfiguration options that do not appear when Full mode is

disabled using Menu from the Configuration branch.

Prt3

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

Prt1

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

Prt4

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

Prt2

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

Prt5

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

Configuration Worksheet for TDM Mode (2 of 3)

Prt6

Configuration Options Value

Async→Sync Enab, Disab

Async Rate =Sync, 1800, 1200, 600, 300, 150

AsyncBit/Char 6, 7, 8, 9, 10

Stop Bits 1, 2

Overspeed 1.25, 2.50

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async terminal = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

DCE Type Analg, Digtl

DSU

Configuration

Options Value

Rate(Kbps) Auto, 64CC, 64L, 56, 38.4, 19.2, 9.6, 4.8, 2.4

TxClkSource }} Int, RXC, DDS, Prt1, Prt2, Prt3, Prt4, Prt5,

Prt6

Msg Clamp AEnab, Disab

TxElasStor Enab, Disab

RxElasStor AEnab, Disab

19.2 PowrLvl DD A+6, 0, –10

64KScrambling AOn, Off

64KLatchLpbk AOn, Off

NetIntf AAggSw, Forc, Disab

NetI Timing }} AInt, NetI, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

V.54 Lpbk AEnab, Disab

Diagnostic DSU

Configuration

Options Value

Diag Type NonD, Disr, Mixed, None

2nd Ch(bps) A100, 400, 800, 1200, 1600

Disr Type 2500, 2600, 3600s, 3600e, Br56

Diagnostic DBM

Configuration

Options Value

Diag Type NonD, Disr, Mixed, None

2nd Ch(bps) A100, 400, 800, 1200, 1600

RemoteDiag AV.54, Enhan, 2500

FBDiagTyp1 LNonD, Disr, Mixed, None

FB 2nd Ch1 LA100, 400, 800, 1200, 1600

Diagnostic General

Configuration

Options Value

Position Cntrl, Trib, G2Trb

LinkConfig Pt-Pt, M-Pt

Resp Period A1, 2, 10

Trib TimOut Amin and sec (5 sec. to 10 min.)

Diag Conn CC, DC

Link Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Network Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Packet Delay A0s, 1s, 2s, 5s

M-PtSymPrt AEnab, Disab

Fast Sel AEnab, Disab

DSU TDM PrtSp

Configuration

Options Value

Prt

n

(SS.S) D }} 64, 56, 48, 38.4, 32, 28.8, 24.0, 19.2, 18.8,

18.0, 16.8, 14.4, 12.0, 9.6, 9.2, 8.4, 7.2, 4.8,

4.4, 4.0, 2.4, 2.0, 1.2, Disab

Underspeed }} Disab, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

DBM PrtSp

Configuration Options Value

Prt

n

(SS.S) D}} 64, 56, 48, 38.4, 32, 28.8, 24.0, 19.2, 18.8,

18.0, 16.8, 14.4, 12.0, 9.6, 9.2, 8.4, 7.2, 4.8,

4.4, 4.0, 2.4, 2.0, 1.2, Disab

Underspeed }} Disab, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

DBM Fallback1 PrtSp

Configuration Options Value

Prt

n

(SS.S) LD}} 56, 48, 38.4, 32, 28.8, 24.0, 19.2, 18.8, 18.0,

16.8, 14.4, 12.0, 9.6, 9.2, 8.4, 7.2, 4.8, 4.4,

4.0, 2.4, 2.0, 1.2, Disab

Underspeed }} Disab, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

Prt1 Prt2 Prt3 Prt4 Prt5 Prt6

LISDN DBM only

}} Ports 3–6 not available for 2-port MCMP/TDM Flex models

:Appears with MCMP/TDM Flex with DSU firmware version

6.33 or greater

DWhen the Async→Sync configuration option is enabled

using MUX Port

n

, the following PrtSp settings will not

appear:

32, 24.0, 18.8, 18.0, 9.2, 8.4, 4.4, 4.0, and 2.0 kbps.

DD 19.2 Power Level defaults to +6 dB when ID App Module

displays XLOOP

n

= Port number

SS.S = Aggregate rate

AConfiguration options that do not appear when Full mode

is disabled using Menu from the Configuration branch.8

Configuration Worksheet for TDM Mode (3 of 3)

DBM

Configuration

Options Value

Rate(Kbps) }64, 56, 28.8, 24.0, 19.2, 16.8, 14.4, 12.0,

9.6, 7.2, 4.8, 2.4

TxClkSource LL}} Int, RXC, DSU, Prt1, Prt2, Prt3, Prt4,

Prt5, Prt6

CarrLossDisc LL AYes, No

Auto Retrain LL AYes, No

Single Rate LL Yes, No

Fallback LNone, All, One

AutoAnswer AEnab, Disab

TxElasStor Enab, Disab

RxElasStor AEnab, Disab

Call Setup None, Pswrd, Clbk, Alarm

RxPwd (10 characters)

TxPwd (10 characters)

V.13 Signl Enab, Disab

Dial Test AEnab, Disab

Primary Core AYes, No

DtrCallCon Orig z, Ansr, Disab

EchoCancel HAEnab, Disab

Remote DBM DDDA2-wire, 4-wire

Wait Answer zz A90 ms, 300 ms, 500 ms, 1s, 2s, 3s, 4s, 5s

Bkup Timer Disab, 15s, 30s, 1m, 2m, 3m

SwitchTyp LNI-1, NI-2, AT&T, DMS100

FBR1(Kbps) L56

LPDA-2

Configuration

Options Value

LPDA-2 Enab, Disab

LPDA Address 1–256

SNA Backup Enab, Disab

Code 1 (6 digits)

Code 2 (7 digits)

Backup

Configuration

Options Value

Auto Bckup zEnab, Disab

Backup Dir 1–10

FAOnCMI zAEnab, Disab

AutoRestor Enab, Disab

NtwkTimOutz min and sec (1 sec to 30 min)

RestorTimOut z min (1 min to 60 min)

TriesTimeOut zA min (1 min to 60 min)

MultiCall zAEnab, Disab

General

Configuration

Options Value

DTE Port :: EIA232, V.35

RTS Cntrl FrcOn, DTE

CTS Cntrl Std, =RTS

LSD Lead ASTD, Delay, FrcOn

CTS Lead ASTD, Delay, FrcOn

SystemStat AEnab, Disab

Circ Assur AEnab, Disab

Tst Pattern AAT&T, Std

RespondRDL AEnab, Disab

LL by DTE AEnab, Disab

RL by DTE AEnab, Disab

Bilat Lpbk AEnab, Disab

Ext Leads AExtLd, Rate, RPowr

CCN by EL AEnab, Disab

SW Vers A3.24, 4.43, 6.66, Normal

AnswExtBU AEnab, Disab

RLSD in MCMP HAYes, No

PowerOnTst Enab, Disab

ChgMd

Configuration

Options Value

Protocol Mode DPII, ADp

Backup Directory Dial String

1

3

4

5

6

7

8

9

10

S1 Hardware

Settings Value

DBM Interface LL Permissive (ON), Programmable (OFF)

Frame Ground/

Signal Ground Connected (ON), Disconnected (OFF)

EIA-232 Test Mode Enable (ON), Disable (OFF)

V.35 Test Mode Enable (ON), Disable (OFF)

}Not available for Switched 56 DBM; Defaults to 56 kbps

}} Ports 3–6 not available for 2-port Flex MUX models

HISDN and Switched 56 Digital DBMs only

LISDN DBM only

LL V.32 Analog DBM only

DDD ISDN and 2-wire Switched 56 DBMs only

:: Appears with Non-Flex MCMP/TDM or 6-port TDM/Flex

with firmware version less than 6.33

zNot available for a DBM-

X

or a DSU with Primary Core set

to Yes; the DSU is disabled

zz 4-wire Switched 56 DBM only

AConfiguration options that do not appear when Full mode is

disabled using Menu from the Configuration branch.

Configuration Worksheet for Bridge Mode (1 of 2)

Date:________________________________________________ Location:_____________________________________________ Local Phone Number: ( j)___________________________

Device:______________________________________________ Local Address:_________________________________________ j DBM Installed

Serial Number:_________________________________________ Tributary Network Address:_______________________________ j SNA Diagnostic Interface (LPDA-2) Enabled

MUX Setup

Configuration

Options Value

MUX Funct:

(CBrdg or EBrdg)

TDM, MCMP, CBrdg, EBrdg, None

Bridge Rate =DSU z, 64, 56, 28.8, 24.0, 19.2, 16.8,

14.4, 12.0, 9.6, 4.8, 2.4

Brdg Timing }} Int, Auto, Prt1, Prt2, Prt3, Prt4, Prt5,

Prt6

Share DevA: Enab

Lowest Port# DCE, 2, 3, 4, 5

#Ports in Gp: 2, 3, 4, 5, 6

Port Cntrl: Host, DSD

Share DevB: Disab

zDoes not appear for EBrdg

}} Ports 3–6 not available for 2-port MCMP/TDM Flex models

:Appears with MCMP/TDM Flex with DSU firmware version

6.33 or greater

AConfiguration options that do not appear when Full mode is

disabled using Menu from the configuration branch.

Prt4

Configuration

Options Value

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

Prt2

Configuration

Options Value

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

Prt5

Configuration

Options Value

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

Prt3

Configuration

Options Value

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

Prt6

Configuration

Options Value

RTS Cntrl FrcOn, DTE

TxCarrSel AConst, Cntrl

RxCarrSel AConst, Cntrl, Mark

PCC Buffer Enab, Disab

Elast Stor AEnab, Disab

RTS/CTS Del A0–1040 ms (8 ms increments)

DTR Alarm AEnab, Disab

AntiStream ADisab, 1–100 sec (async term = 0–100)

DSR FrcOn AEnab, Disab

DSR on Tst AEnab, Disab

Extend Chan AYes, No

Upstrm Port }} APrt1, Prt2, Prt3, Prt4, Prt5, Prt6

DTE Port :EIA232, V.35

Configuration Worksheet for Bridge Mode (2 of 2)

DSU

Configuration

Options Value

Rate(Kbps) zAuto, 64CC, 64L, 56, 38.4, 19.2, 9.6, 4.8,

2.4

TxClkSource zInt, RXC, DDS, Prt1

Msg Clamp zAEnab, Disab

TxElasStor Enab, Disab

RxElasStor

zAEnab, Disab

19.2 PowrLvl FF A+6, 0, –10

64KScrambling AOn, Off

64KLatchLpbk AOn, Off

NetI Timing z}} AInt, NetI, Prt1, Prt2, Prt3, Prt4, Prt5, Prt6

V.54 Lpbk AEnab, Disab

Diagnostic DSU

Configuration

Options Value

Diag Type NonD z, Disr, Mixed z, None

2nd Ch(bps) zA100, 400, 800, 1200, 1600

Disr Type 3600s z, 3600e, Br56

Diagnostic General

Configuration

Options Value

Position Cntrl

LinkConfig Pt-Pt, M-Pt

Resp Period A1, 2, 10

Trib TimOut Amin and sec (5 sec to 10 min)

Diag Conn CC, DC

Link Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Network Delay A0s, 1s, 2s, 5s, 10s, 20s, 50s

Packet Delay A0s, 1s, 2s, 5s

M-PtSymPrt HAEnab, Disab

Fast Sel AEnab, Disab

General

Configuration

Options Value

DTE Port :: EIA232, V.35

RTS Cntrl FrcOn

CTS Cntrl Std, =RTS

LSD Lead ASTD, Delay, FrcOn

CTS Lead ASTD, Delay, FrcOn

SystemStat AEnab, Disab

Circ Assur AEnab, Disab

Tst Pattern AAT&T, Std

RespondRDL AEnab, Disab

LL by DTE AEnab, Disab

RL by DTE AEnab, Disab

Bilat Lpbk AEnab, Disab

Ext Leads AExtLd, Rate, RPowr

CCN by EL AEnab, Disab

DTR Alarm AEnab, Disab

SW Vers A3.24, 4.43, 6.66, Normal

AnswExtBU AEnab, Disab

Async→Sync zEnab, Disab

AsyncBit/Char z6, 7, 8, 9, 10

Stop Bits z1, 2

Overspeed z1.0, 2.3

PowerOnTst Enab, Disab

ChgMd

Configuration

Options Value

Protocol Mode DPII, ADp

LPDA-2

Configuration

Options Value

LPDA-2 Enab, Disab

LPDA Address 1–256

SNA Backup Enab, Disab

Code 1 (6 digits)

Code 2 (7 digits)

S1 Hardware

Settings Value

DBM Interface LL Permissive (ON), Programmable (OFF)

Frame Ground/

Signal Ground Connected (ON), Disconnected (OFF)

EIA-232 Test Mode Enable (ON), Disable (OFF)

V.35 Test Mode Enable (ON), Disable (OFF)

zDoes not appear for EBrdg

FF 19.2 Power Level defaults to +6 dB when ID App Module

displays XLOOP

}} Ports 3–6 not available for 2-port Flex MUX models

HTDM option only

:: Appears with non-Flex MCMP/TDM or 6-port MCMP/TDM

Flex with DSU firmware version less than 6.33

LLV.32 Analog DBM only

AConfiguration options that do not appear when Full mode is

disabled using Menu from the Configuration branch.

C-13610-A2-GB48-70 March 1999

Configuration Examples

Overview C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MCMP Mode C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDM Mode C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bridge Mode C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LADS Environment C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

The MUX Setup configuration options are set using

the Configuration branch. When an MCMP/TDM circuit

card is installed, the following functions are available:

•MCMP mode

•TDM mode

•Digital Bridge mode

•CBrdg

•EBrdg

•Basic mode (MUX = None)

MCMP Mode

When the MUX function is set to MCMP,

multichannel multipoint circuitry is activated. All six

ports are available for multiplexing, digital-sharing, or a

combination of both.

Using a management channel, the control DSU is in

constant communication with each tributary DSU. The

management channel is included in the MCMP circuitry

and transmits data without disrupting user-transmitted

data. In Figure C-1, the DDS multipoint circuit is

transmitting to three tributaries.

The management channel is also used for framing and

an underspeed channel is not required. MCMP can

support up to forty addressable tributary devices

(40 DSUs or 20 DSUs with DBMs). With multichannel

multipoint and digital sharing, up to three digital-sharing

groups can be formed at each tributary site.

NOTE

The figures in this appendix use

Customer Provided Equipment

(CPE) to represent any DTE,

LAN, FEP, DDS backup, MUX,

or mainframe.

C

COMSPHERE 3600 Series Data Service Units

C-2 March 1999 3610-A2-GB48-70

496-12997-02

CPE

DSU

MCMP

2

3

MCMP

1

B

C

AA

1

Branch

Site 1

Control

DDS 56 kbps

ATM

Security

Teller

B

C

2.4 kbps

Branch

Site 2

Branch

Site 3

19.2 kbps

4.8 kbps

CPE = Customer Provided Equipment

CARRIER

DSU

2

3

4

5

6

MCMP

A

1

ATM

Security

Teller

B

C

2.4 kbps

19.2 kbps

4.8 kbps

DSU

2

3

4

5

6

MCMP

A

1

ATM

Security

Teller

B

C

2.4 kbps

19.2 kbps

4.8 kbps

DSU

2

3

4

5

6

Teller

A

19.2 kbps

Figure C-1. Applications Combined on One DDS Multipoint Circuit with MCMP

TDM Mode

When MUX Funct is set to TDM, the equivalent of up

to six point-to-point circuits are available between the

DSU and TDM to increase the port capacity of the DSU

to six ports. All six ports can be configured for

multiplexing, digital-sharing, or a combination of both.

A variety of configurations are available and include

point-to-point multiplexing, FEP port-sharing, digital

sharing, and multiplexing with digital sharing. Refer to

Figures C-2 and C-3 for two TDM configuration

examples.

Configuration Examples

C-33610-A2-GB48-70 March 1999

CPE

CPE

CPE

CPE

CPE

CPE

CPE

A

B

DSU

TDM

2

3

4

5

6

2-Port

TDM/

Flex

DSU A

B

496-12992a-03

Digital-

Sharing

Group

= Digital-Sharing Group A

= Digital-Sharing Group B

= Customer Provided Equipment

A

B

CPE

DDS

Figure C-2. Point-to-Point Multiplexing with TDM and Tributary Digital Sharing

496-12993a-03

CARRIER

SDU

CPE DSU

NMS

Digital-

Sharing

Group

CPE

CPE

CPE

CPE

CPE

CPE = Customer Provided Equipment

DDS

DSU

TDM

DSU

TDM

Figure C-3. Digital Sharing in a Multipoint Circuit

COMSPHERE 3600 Series Data Service Units

C-4 March 1999 3610-A2-GB48-70

Bridge Mode

In Bridge mode, all ports are assigned to one

digital-sharing group. When the MCMP/TDM circuit

card is configured as a digital bridge, the control DSU

can support dedicated multipoint dial backup, expanded

digital-sharing, or multipoint LADS operation.

When the digital bridge is set for automatic backup,

partial or full backup occurs as needed. In Figures C-4

and C-5, a DDS multipoint network is operating with

three central-site V.32 DBMs dedicated to the control

DSU and connected to the CBrdg.

If a failure occurs on the DDS line, each of the

affected DSUs switches data through the digital bridge to

the dedicated DBM. If automatic restoral is enabled, the

active DBMs switch back to the DSUs automatically

when the DDS network is restored.

496-15120

CARRIER

DSU DSU

DBM

CPE

DDS 9.6 kbps

X

X

Dial Line

9.6 kbps

Aggregate

Data Path

Customer Provided Equipment

Central-Site Bridge; Bridge Rate: =DSU

Port 1

DBM-V

DBM-V

DBM-V

DSU

DBM

DSU

DBM

CPE

CPE

CPE

Port 2

Port 4

Port 3

CPE =

CBrdg =

CBrdg

Failure

Crossover

Cables

Figure C-4. Digital Bridging (CBrdg) in Partial Backup

Configuration Examples

C-53610-A2-GB48-70 March 1999

496-15121

CARRIER

DSU DSU

DBM

CPE

DDS 56 kbps

XX

14.4 kbps

Aggregate

Data Path

Customer Provided Equipment

Central-Site Bridge; Bridge Rate: 14.4 kbps

Port 1

DBM-V

DBM-V

DBM-V

DSU

DBM

DSU

DBM

CPE

CPE

CPE

Port 2

Port 4

Port 3

CPE =

CBrdg =

CBrdg

Failure

14.4 kbps

14.4 kbps

Crossover

Cables

Figure C-5. Digital Bridging (CBrdg) in Full Backup

COMSPHERE 3600 Series Data Service Units

C-6 March 1999 3610-A2-GB48-70

LADS Environment

In the LADS environment, a point-to-point link is

established between two devices with a direct 4-wire

connection.

A bridged LADS configuration can be used to provide

a multipoint function. Digital bridge crossover interface

cables are required as shown in Figure C-6. Both the

CBrdg and EBrdg include a DSU circuit card attached to

a MUX circuit card.

496-12847-06

CARRIER

DSU

56 kbps

Port 1

Crossover

Cables

Port 2

Port 3

Port 4

Port 5

Port 6

Port 2

Port 3

Customer Provided Equipment

Central-Site Bridge

Extended Bridge

Crossover

Cables

CPE =

CBrdg =

EBrdg =

Port 1

DSU

DSU

CPE

DSU

CPE

DSU

CPE

DSU

CPE

DSU

CPE

DSU

CPE

DSU

CPE

DSU

DSU

DSU

DSU

DSU

DSU

CPE

CBrdg

EBrdg

Figure C-6. Central-Site and Extended Digital Bridges in LADS Environment

D-13610-A2-GB48-70 March 1999

Troubleshooting and

Front Panel Messages

Troubleshooting D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Messages D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting

Confirm the configuration option settings for the items

listed below that apply to your configuration.

•Verify the network, NMS, and DDS connections.

Refer to your User’s Guide, Chapter 2.

•For an Out of Frame Thresh message and facility

alarm, verify that the control and tributary:

— DSU rates [Rate(Kbps)] are set to match the

DDS circuit rate.

— Diag Type, Port Speed, and 2nd Ch(bps) are set

the same.

•Diagnostic type affects the control and tributary

interaction. Verify that all DSUs are set to the same

Diag Type. Mixed mode is not valid for MCMP.

•For multipoint rate adaption, enabling the

M-PtSymPrt configuration option is not required.

With Diag Type of NonD, the default is enable. The

control and all tributaries must be set the same.

•For MCMP mode, verify poll list acquire (Acq) is

completed. To add a tributary, use Add or Acq from

the tributary.

•To verify the network, request a remote ID and

ensure that you receive all addresses.

•Initiate a Digital Test (DT) and an End-to-End Test

(EE) to verify error free communications.

•Confirm the CTS Lead, RTS Cntrl, TxCarrSel, and

DSR FrcOn configuration option settings.

Messages

This section describes the progress or error messages

that may appear on the front panel of the 3600 Series

DSU with a TDM or MCMP installed when:

•Executing a command

•An error condition prevents execution

The messages listed here do not include menus, data

entry displays, or specific test results; they do give the

condition and any action to perform.

Table D-1 lists the configuration error messages that

may appear after pressing SAVE and the verification

routine runs.

For command, progress, health and status, and

additional configuration error messages, refer to

Document No. 3610-A2-GB46.

For configuration error, progress, and health and status

messages supporting DBMs, refer to Document No.

3610-A2-GB49.

D

COMSPHERE 3600 Series Data Service Units

D-2 March 1999 3610-A2-GB48-70

Table D-1

(1 of 4)

Configuration Error Messages

Message Condition Action

AgSw&BRDG Incmpt Bridge Mode is incompatible with Network

Interface set to AggSw or forced on. Refer to configuration option NetIntf.

Asy Not= forChan MCMP mode: all ports in a sharing group must all

be the same, either asynchronous or

synchronous. When asynchronous, all ports must

be the set the same for asynchronous rate,

bits/char, and number of stop bits.

Use configuration option Async→Sync to set

all ports. If set to Async, also set the

configuration options Async Rate,

AsyncBit/Char, and Stop Bits for each port.

BRDG&SymP

Incmpt Multipoint symmetric enabled is incompatible with

Bridge mode and NonDisruptive diagnostics. Disable configuration option M-PtSymPrt.

BRG&Bilat Incmpt Bilateral Loopback enabled is incompatible with

Bridge mode. Disable configuration option Bilat Lpbk.

Chan >1 in FEPGrp MCMP mode: both ports in a FEP port-sharing

group must be assigned to the same channel. Assign the same channel to both ports in a

FEP port-sharing group using the PrtSp

configuration submenu to access Chan.

Chan >1 in ShrGrp MCMP mode: all ports in a digital-sharing group

are not assigned to the same channel. Use the PrtSp configuration submenu to

access Chan. For the ports, use configuration

options Share DevA or Share DevB with

Lowest Port # and #Ports in Gp.

Ctrl Type Requir Bridge mode: a DSU configured as a tributary

cannot be in Bridge mode. Set the configuration option Position to Cntrl

for digital bridging.

CTS delay > 1024 TDM mode:

•If the port speed is equal to or greater than

38.4 kbps, the RTS to CTS delay should be

504 ms or less.

•DBM port speed is set to 32 kbps and RTS

delay is more than 1280 ms.

•Port speed is set to 32 kbps and RTS delay is

greater 1280 ms.

•Set the delay with configuration option

RTS/CTS Del.

•Change the configuration option RTS/CTS

Del to 1280 ms or less or change DBM

PrtSp(Kbps).

•Change the configuration option RTS/CTS

Del to 1280 ms or less.

DDS must be 56k MCMP mode: the DDS data rate is not set to

56 kbps for MCMP. Set the DSU configuration option Rate(Kbps)

to 56 kbps.

DSD Async Diff •TDM mode: all ports in a port-sharing group

must be the same, either asynchronous or

synchronous. If asynchronous, all async

options must be the same.

•Bridge mode: only Port 1 can be

asynchronous. All other ports must be

synchronous.

Use configuration option Async→Sync to set

all ports. If set to Async, also set the

configuration options Async Rate,

AsyncBit/Char, and Stop Bits for each port.

DSD Wrong RTS TDM or MCMP multipoint mode: one or more

ports in a digital-sharing group with DSD port

control do not have RTS Control set to DTE.

Set the configuration option RTS Cntrl to DTE

for all ports in the digital-sharing group.

DSU Agg Exceeded •TDM mode: the sum of the port speeds

exceeds the DDS speed.

•MCMP mode: the sum of the port speeds

exceeds 48 kbps.

Set configuration option Rate(Kbps) to a

higher speed or lower one or more port

speeds with configuration option PrtSp(Kbps).

Troubleshooting and Front Panel Messages

D-33610-A2-GB48-70 March 1999

Table D-1

(2 of 4)

Configuration Error Messages

Message ActionCondition

DSU ShareGp Spds DSU port speeds in a sharing group do not

match. Use configuration option PrtSp(Kbps) to set

both ports to the same port speed.

DSU Undersp Reqd TDM mode: the sum of the ports is equal to the

DDS speed and either:

•There is more than one port active that is not in

the same sharing group, or

•Diagnostics set to NonDisruptive with no

underspeed port.

•Select an underspeed port.

•Change configuration option Diag Type to

Disr, Mixed or None or use the PrtSp

configuration submenu to select an

underspeed port and configuration option

2nd Ch(bps) for the diagnostic speed.

Elast Not Valid Bridge mode: an attempt was made to configure

a DSU as an extended bridge with:

•Receive elastic store turned ON at one or

more of the active bridge ports, or

•The Bridge Rate is not set to

=DSU.

•Disable configuration option RxElasStor for

each of the active bridge ports.

•Configuration option Bridge Rate must be

set to =DSU when TxElasStor is enabled.

FEP Async diff Two ports with FEP port-sharing must have both

ports set either to asynchronous or synchronous. Use configuration option Async→Sync to set

the ports.

FEP Prt Underspd One of two ports in an FEP port-sharing group

was chosen for the underspeed port. Select an underspeed port that is not in an

FEP port-sharing group.

FEP&ShrDv Incmpt TDM or MCMP mode: an attempt was made to

place a port into both a digital-sharing group and

an FEP port-sharing group.

Select which of the groups is to have the port

included. Use MCMP Setup configuration

options to set Share DevA or P

n

/

n

FEP Sh.

FEP Speeds diff TDM or MCMP mode: two ports in the FEP

port-sharing group are assigned different speeds. Set all ports in the port-sharing group to the

same speed by using the configuration option

PrtSp(Kbps) for the DSU or DBM.

G2Trib Inv MCMP Diagnostic general configuration option Position

is set to G2Trib which is invalid with MCMP. Set configuration option Position to Cntrl or

Trib.

Incmpt Diag Mode Mixed diagnostics is incompatible with EBrdg or

MCMP mode. Use configuration option Diag Type to change

diagnostic setting.

Inval BridgeRate Bridge mode: MUX function set to EBrdg with

Bridge rate set to =DSU. Change configuration option Bridge Rate to a

valid data rate or set MUX Funct to CBrdg.

Inval DSU Timing •Port timing from a TDM port without TDM.

•Bridge timing from a port that is not installed

•DDS timing from a port that is not installed.

•TDM mode and timing is external.

•MCMP mode with timing from a port.

•Network interface timing from a non-installed

port.

Use configuration option:

•MUX Funct to enable TDM.

•Brdg Timing to select a valid port.

•TxClkSource to select a valid port.

•TxClkSource to select Port 1.

•TxClkSource to select a valid timing source.

•NetI Timing to select a valid timing source.

COMSPHERE 3600 Series Data Service Units

D-4 March 1999 3610-A2-GB48-70

Table D-1

(3 of 4)

Configuration Error Messages

Message ActionCondition

Inval lowest Prt TDM or MCMP mode:

•Sharing group is enabled with DCE as the

lowest port number and port control from DSD

but not in Bridge mode.

•A two-port Flex MUX has sharing group B

enabled.

•The first port in one sharing group is already in

another sharing group.

•When configuration option Share DevA is

enabled, the Lowest Port# is 1 for TDM or

MCMP. DCE is only valid in Bridge mode.

•A two-port TDM/Flex or MCMP/Flex can

only have Share DevA enabled.

•Use configuration options Lowest Port #

and #Ports in Gp to assign ports.

Inval M-Pt Confg TDM mode:

•Multipoint configuration with NonDisruptive

diagnostics and Secondary Channel speed of

100 bps.

•Multipoint configuration with rate adaption must

have NonDisruptive diagnostics with

symmetric mode enabled and all ports in a

digital-sharing group.

•Change configuration option Diag Type, or

use 2nd Ch(bps) to increase speed.

•Set configuration option Diag Type to NonD,

enable M-PtSymPrt, and enable Share

DevA.

Inval Port Cntrl Bridge mode: NonDisruptive diagnostics not valid

with port control set to DSD. Change configuration option Diag Type, or set

configuration option Port Cntrl to Host.

Invalid Async TDM mode in asynchronous mode cannot run:

•1.2 kbps port speed with async rate of 600 bps

and only 1 stop bit, or

•2.4 kbps port speed with async rate of

1.2 kbps and only 1 stop bit.

When configuration option Async→Sync is

enabled for asynchronous mode and Stop Bits

is set to 1, the Async Rate cannot be equal to

half the synchronous rate. Change the

configuration option Async Rate, or change

the number of Stop Bits.

Invalid Port Spd 1. MCMP mode: invalid port speed.

2. MCMP mode: a DBM port is configured for

56 or 64 kbps with MCMP.

3. TDM mode: a port is set to a port speed of

4.4, 9.2, or 18.8 kbps and set for underspeed.

Underspeed is not valid with a port speed of

4.4, 9.2, or 18.8 kbps.

4. TDM mode: one of two ports in a sharing

group is set for underspeed.

1. Use configuration option DSU/MCMP Port

Speed to select a valid MCMP port speed.

2. Use configuration option DBM Port Speed

to select a valid MCMP port speed.

3. Use configuration option DSU/TDM Port

Speed to select a valid TDM port speed,

or change the Underspeed selection to

another port.

4. Set both ports in a sharing group to

underspeed.

Invalid Underspeed

Port TDM mode: A port with port speed of 4.4, 9.2 or

18.8 kbps is set for underspeed. •Use configuration option DSU/TDM Port

Speed to select a valid TDM port speed, or

•Change Underspeed port selection to

another port.

No Ext Timing CBrdg mode: an attempt was made to configure

a DSU as a central-site bridge using external

timing on Prt1, and Bridge Rate is not set to

=DSU.

For a central-site bridge configuration, set the

configuration option:

•Bridge Rate to =DSU, or

•TxClkSource to Int, RXC, or DDS.

PCC/Async Conflc TDM mode: an async port’s Receiver Carrier

Select and PCC Buffer are not both enabled. When configuration option RxCarrSel is set to

Cntrl for an asynchronous port, PCC Buffer

must be Enab for the same port.

Troubleshooting and Front Panel Messages

D-53610-A2-GB48-70 March 1999

Table D-1

(4 of 4)

Configuration Error Messages

Message ActionCondition

Port Off Undersp TDM mode: a port that is disabled (0 bps) is set

for underspeed port. Use the DSU or DBM PrtSp configuration

option to assign a speed to the port or set

another port to Underspeed.

Prts>2: FEP Chan MCMP mode: a channel assigned to both ports

of a FEP port-sharing group is also assigned to

one or more other ports.

Use the MCMP AssgmntPrt1 to assign the

channel only to the two ports of the FEP

port-sharing group.

RTS/AnStr Conflc AntiStreaming disabled and RTS Control forced

on are incompatible for the same port. Disable configuration option AntiStream or set

RTS Control to DTE.

RTS FrcOn Requir Bridge Mode: DDS RTS control must be forced

on. Set configuration option RTS Cntrl to FrcOn.

RTS/TxCrr Conflc TDM mode: a port’s Transmitter Carrier Select

and RTS Control settings are incompatible. Set configuration option TxCarrSel to Cntrl

and RTS Cntrl to DTE, or set TxCarrSel to

Const and RTS Cntrl to FrcOn for each port.

Share DevA Reqd Bridge Mode: sharing group A disabled. Enable configuration option Share DevA.

Share DevB Inval Bridge Mode: sharing group B enabled. Disable configuration option Share DevB.

Spd Not=forChan MCMP mode: a channel is assigned to two or

more ports that are not operating at the same

port speed.

Use the DSU/MCMP Port Speed configuration

option to assign the same port speed to each

port in the channel.

Sync >Async Req TDM mode: the async rate setting for the port

must be less than or equal to the synchronous

data rate of the port.

Change configuration option Async Rate or

use the DSU/TDM Port Speed to change the

port speed.

Too Many Ports TDM or MCMP mode: either a sharing group has

more ports assigned than exist on the card or

one port is assigned to more than one

digital-sharing group.

Use the configuration options Lowest Port#

and #Ports in Gp to specify the ports in a

digital-sharing group.

V.13&MCMP Bckup DBM V.13 Signaling enabled with MUX function

set to MCMP and MCMP backup set to MCMP. The configuration option MUX Funct set to

MCMP is not valid with V.13 Signaling

enabled. Disable V.13 Signaling.

COMSPHERE 3600 Series Data Service Units

D-6 March 1999 3610-A2-GB48-70

This page intentionally left blank.

E-13610-A2-GB48-70 March 1999

Technical Specifications

Technical Specifications E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Specifications

•Table E-1 lists MCMP technical specifications.

•Table E-2 lists TDM technical specifications.

•Table E-3 lists digital bridge technical

specifications.

Refer to the COMSPHERE 3600 Series Data Service

Units, Models 3610 and 3611, User’s Guide for the

general technical specifications for the 3600 Series DSU

and the COMSPHERE 3600 Series Data Service Units,

Models 3610 and 3611, Dial Backup Module Options

Supplement for DBMs.

E

COMSPHERE 3600 Series Data Service Units

E-2 March 1999 3610-A2-GB48-70

Table E-1

MCMP Technical Specifications

Specifications Criteria

APPLICATION

Multichannel multipoint

Digital sharing

FEP port sharing

Allows up to two or six independent application programs to share one

standard multipoint digital facility, depending upon the version, 2-port or

6-port.

Allows up to three digital-sharing groups (two ports each) at each

tributary site, or a maximum of six ports per group.

Provides up to three separate FEP port-sharing groups.

NUMBER OF TRIBUTARIES Supports up to 40 addressable tributary devices (40 DSUs or 20 DSUs

and DBMs).

LINE SPEEDS 56 kbps (maximum usable data rate is 48 kbps)

CHANNEL SYNCHRONOUS RATES

Primary (DSU) 1.2, 2.4, 4.8, 7.2, 9.6, 12.0, 14.4, 16.8, 19.2, 38.4, and 48 kbps

CHANNEL ASYNCHRONOUS RATES 150, 300, 600, 1200, and 1800 bps plus all primary (DSU) rates

PORT DTE INTERFACE

3610 DSU (2-port MCMP/Flex)

3610 DSU (6-port MCMP/Flex)

3611 DSU (modular)

3610 DSU (MCMP/DSD)

3611 DSU (non-modular)

Provides an additional 25-pin D-subminiature connector, for a total of

two EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.33 or greater.

Provides five additional 25-pin D-subminiature connectors, for a total of

six EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.33 or greater.

Provides a 6-port connector module that provides a total of six 25-pin

D-subminiature EIA-232 connections (including the DSU); in addition, a

26-pin high-density D-type connector that provides a V.35 interface

through an adapter cable for Port 1.

Provides five additional 25-pin D-subminiature connectors that can be

optioned for EIA-232 or V.35, for a total of six EIA-232 or six V.35

interfaces.

Provides one 60-pin high-density D-type connector that provides five

additional EIA-232 interfaces through an adapter cable.

NMS SUPPORT MCMP capability is fully supported by the COMSPHERE 6700 or

6800 Series NMS, Release 4.0 or greater for the 6700 Series NMS and

Release 4.1.5 or greater for the 6800 Series NMS software in ADp and

DATAPHONE II modes.

Technical Specifications

E-33610-A2-GB48-70 March 1999

Table E-2

TDM Technical Specifications

Specifications1Criteria

APPLICATION

Multiplexing

Digital sharing

FEP port sharing

Digital bridge

Provides time division multiplexing of up to two or six independent

ports, depending upon the version, 2-port or 6-port.

Allows two groups of consecutive ports to share the same TDM

channel.

Provides up to three separate FEP port-sharing groups.

Configured to perform a 5-port digital bridge capability.

PORT SYNCHRONOUS RATES 1.2, 2.0, 2.4, 4.0, 4.4, 4.8, 7.2, 8.4, 9.2, 9.6, 12.0, 14.4, 16.8, 18.0, 18.8,

19.2, 28.8, 32, 38.4, 48, 56, and 64 kbps

PORT ASYNCHRONOUS RATES 150, 300, 600, 1200, and 1800 bps plus all primary (DSU) rates.

Asynchronous rates support +2.3, –2.5 percent overspeed/underspeed

compensation.

PORT DTE INTERFACE

3610 DSU (2-port TDM/Flex)

3610 DSU (6-port TDM/Flex)

3611 DSU (modular)

3610 DSU (TDM/DSD)

3611 DSU (non-modular)

Provides an additional 25-pin D-subminiature connector, for a total of

two EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.28 or greater.

Provides five additional 25-pin D-subminiature connectors, for a total of

six EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.28 or greater.

Provides a 6-port connector module that provides a total of six 25-pin

D-subminiature EIA-232 connections (including the DSU). In addition, a

26-pin high-density D-type connector provides a V.35 interface through

an adapter cable.

Provides five additional 25-pin D-subminiature connectors that can be

optioned for EIA-232 or V.35, for a total of six EIA-232 or six V.35

interfaces.

Provides one 60-pin high-density D-type connector that provides five

additional EIA-232 interfaces through an adapter cable.

NMS SUPPORT TDM capability is fully supported by the COMSPHERE 6700 or

6800 Series NMS, Release 4.0 or greater for the 6700 Series NMS and

Release 4.1.5 or greater for the 6800 Series NMS software in ADp and

DATAPHONE II modes.

1TDM and MCMP circuit cards can be configured to provide TDM capability.

COMSPHERE 3600 Series Data Service Units

E-4 March 1999 3610-A2-GB48-70

Table E-3

Digital Bridge Technical Specifications

Specifications2Criteria

APPLICATION

Digital Bridge Provides 5-port digital bridging for various applications. Used primarily

for multipoint dial backup, which can be configured as a central-site

bridge or an extended bridge.

PORT SYNCHRONOUS RATES

Primary (DSU) and Backup (DBM) 2.4, 4.4, 4.8, 9.2, 9.6, 12.0, 14.4, 18.8, 19.2, 38.4, 56 and 64 kbps

DIAGNOSTIC SUPPORT Supports nondisruptive diagnostics (NonD), mixed, and disruptive (Disr)

diagnostic types. The Disruptive Type configuration option must be set

to either 3600e or Br56.

PORT DTE INTERFACE

3610 DSU (2-port TDM/Flex or MCMP/Flex)

3610 DSU (6-port TDM/Flex or MCMP/Flex)

3611 DSU (modular)

3610 DSU (TDM/DSD or MCMP/DSD)

3611 DSU (non-modular)

Provides an additional 25-pin D-subminiature connector, for a total of

two EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.33 or greater.

Provides five additional 25-pin D-subminiature connectors, for a total of

six EIA-232 or V.35 interfaces that can be set independently of each

other when you have DSU firmware Release 6.33 or greater.

Provides a 6-port connector module that provides a total of six 25-pin

D-subminiature EIA-232 connections (including the DSU). In addition, a

26-pin high-density D-type connector provides a V.35 interface through

an adapter cable.

Provides five additional 25-pin D-subminiature connectors that can be

optioned for EIA-232 or V.35, for a total of six EIA-232 or six V.35

interfaces.

Provides one 60-pin high-density D-type connector that provides five

additional EIA-232 interfaces through an adapter cable.

NMS SUPPORT Digital bridging capability is fully supported by the COMSPHERE 6700

or 6800 Series NMS, Release 4.0 or greater for the 6700 Series NMS

and Release 4.1.5 or greater for the 6800 Series NMS software in ADp

and DATAPHONE II modes.

2TDM and MCMP circuit cards can both be configured to provide digital bridge capability.

Index-13610-A2-GB48-70 March 1999

Index

Symbols

# Ports in Gp

for digital bridging, 4-6

for MCMP Setup, 4-3, 4-4

Aabbreviations, for menu tree, A-2

Acq, poll list, 3-9

adapter

V.35 interface, 2-1

AgSw&BRDG Incmpt, D-2

alternate Port 1, 1-2–1-3

AntiStream

for digital bridging, 4-12

for TDM/MCMP, 4-9

AssgmntPrt1, MCMP channel, 4-14

Asy Not= forChan message, D-2

Async Rate, 4-7

Async–>Sync, 4-7

data conversion, 1-1

AsyncBit/Char, 4-7

BBackup (Bckup) branch, 3-5

central-site bridge, 3-5

Digital Bridging, 3-5

extended bridge, 3-6

bit error rate test (BERT), 3-8

BrdgTiming, 4-5

Bridge Rate, 4-5

Bridge timing, 3-5

bridging. See digital bridging

Ccapability

digital bridging, 1-3

MCMP, 1-3

TDM, 1-2

CBrdg, configuration example, C-4

central-site bridge, 3-5

Chan

>1 in FEPGrp message, D-2

>1 in ShrGrp message, D-2

Spd Not=for message, D-5

channel, MCMP port assignment, 4-14

circuit quality, 3-5

configuration

error messages, D-2–D-5

examples

digital bridging, C-4–C-6

LADS, C-6

MCMP, C-1–C-2

TDM, C-2–C-3

option worksheets, B-1–B-10

options, factory defaults, A-1–A-4

Configuration (Confg) branch

Menu, 3-9

Options (Opts), 3-8–3-9

Poll List (PList), 3-9

Control branch, 3-10

external leads (ExtL), 3-10

LEDs, 3-10

Reset, 3-10

Transmitter Control (TxCd), 3-10

CTS delay > 1024 message, D-2

DDBM operation. See 3610-A2-GB49

DCE Type, 4-10

DDS, must be 56k message, D-2

dial tone test (DTone), 3-8

digital bridging

configuration, 3-5

features, 1-3

port configuration options, 4-11–4-13

setup configuration options, 4-5–4-6

technical specifications, E-4

worksheets, B-1–B-10

digital sharing, 1-2–1-3

digital test (DT), 3-8

DrBU, Backup menu, 3-5

COMSPHERE 3600 Series Data Service Units

Index-2 March 1999 3610-A2-GB48-70

DSD

Async Diff message, D-2

verify port interface, 2-1

Wrong RTS message, D-2

DSR FrcOn

for digital bridging, 4-12

for TDM/MCMP, 4-10

DSR on Tst

for digital bridging, 4-12

for TDM/MCMP, 4-10

DSU

Agg Exceeded message, D-2

DTE connections, 2-5

front panels, 3-2

how to open, 2-2

power-up routine, 2-5

reassembling, 2-4

separating from TDM or MCMP, 2-3

status indicators, 3-2

Undersp Reqd message, D-3

with digital bridge capability, 1-3

with LPDA-2 Interoperability, 1-3

with MCMP capability, 1-3

with TDM capability, 1-2

DSU operation. See 3610-A2-GB46

DTE connections, 2-5

DTE Port

for digital bridging, 4-13

for TDM/MCMP, 4-10

DTR Alarm, 4-12

for TDM/MCMP, 4-9

EEBrdg, configuration example, C-6

EIA-232 interface, changing to V.35, 2-2, 2-4–2-6

Elast Stor

for digital bridging, 4-11

for TDM/MCMP, 4-9

Not Valid message, D-3

Elastic Store, 1-1

End-to-End test (EE), 3-8

ExtendChan

for digital bridging, 4-13

for TDM/MCMP, 4-10

extended bridge, 3-6

EBrdg, 1-2–1-3

external leads, 3-10

FFac, factory default settings, A-1–A-4

faceplate, 3-2

factory defaults, A-1–A-4

See also 3610A2–GB46 & 3610-A2-GB49

features

common, 1-1

MCMP specific, 1-3

TDM specific, 1-2

FEP

&ShrDv Incmpt message, D-3

Async Diff message, D-3

port sharing, 1-1

Prt Underspd message, D-3

Speeds diff message, D-3

flat cables, 2-3

front panels, 3-2

GG2Trib Inv MCMP, message, D-3

IIdentity, 3-5

in-band framing, 1-2

Incmpt Diag Mode, message, D-3

indicators, status, 3-2

installation procedures

changing hardware straps, 2-1

how to open the DSU, 2-2

installing the DSU, 2-1

installing the power cable, 2-4

pre-installation notes, 2-1

Inval

BridgeRate message, D-3

DSU Timing message, D-3

lowest Prt message, D-4

M-Pt Confg message, D-4

Port Cntrl message, D-4

Invalid

Async message, D-4

Port Spd message, D-4

Underspeed Port message, D-4

LLEDs, 3-10

Link Problem Determination Aid. See LPDA-2

Local branch, 3-3

loopbacks, 3-7

digital, 3-7

remote digital, 3-7

Lowest Port#

for digital bridging, 4-6

for MCMP/TDM Setup, 4-3

LPDA-2, configuration example, C-6

LPDA-2, with TDM or MCMP, 1-3

Index

Index-33610-A2-GB48-70 March 1999

MMCMP

capability, 1-1, 1-3

changing DSD V.35 interface setting, 2-2, 2-4

changing the Flex interface, 2-2

channel-to-port assignment, 4-14

features, 1-3

front panel, 3-2

mode, 4-2

port configuration options, 4-7–4-11

separating from DSU, 2-3

setup configuration options, 4-2–4-5

status indicators, 3-2–3-3

worksheets, B-1–B-5

MCMP Bckup, 4-5

MCMP/Flex, reconfiguring interface, 2-5

Menu, Full mode, 3-9

menu

and modes of operation, 3-3

structure, 3-3

tree, A-1–A-3

tree abbreviations, A-2

message

AgSw&BRDGIncmpt, D-2

Asy Not= forChan, D-2

BRDG&SymP Incmpt, D-2

BRG&Bilat Incmpt, D-2

Chan >1 in FEPGrp, D-2

Chan >1 in ShrGrp, D-2

Ctrl Type Requir, D-2

CTS delay > 1024, D-2

DDS must be 56k, D-2

DSD Async Diff, D-2

DSD Wrong RTS, D-2

DSU, ShareGp Spds, D-3

DSU Agg Exceeded, D-2

DSU Undersp Reqd, D-3

Elast Not Valid, D-3

FEP Async Diff, D-3

FEP Prt Underspd, D-3

FEP Speeds diff, D-3

FEP&ShrDv Incmpt, D-3

G2Trib Inv MCMP, D-3

Incmpt Diag Mode, D-3

Inval BridgeRate, D-3

Inval DSU Timing, D-3

Inval lowest Prt, D-4

Inval M-Pt Confg, D-4

Inval Port Cntrl, D-4

Invalid Async, D-4

Invalid Port Spd, D-4

Invalid Underspeed Port, D-4

No Ext Timing, D-4

PCC/Async Conflc, D-4

Port Off Undersp, D-5

Prts>2: FEP Chan, D-5

RTS FrcOn Requir, D-5

RTS/AnStr Conflc, D-5

RTS/TxCrr Conflc, D-5

Share DevA Reqd, D-5

Share DevB Inval, D-5

Spd Not=forChan, D-5

Sync to Async Req, D-5

Too Many Ports, D-5

V.13&MCMP Bckup, D-5

messages

See also 3610-A2-GB46 & 3610-A2-GB49

configuration error, D-2–D-5

error, D-1–D-5

mode

full, 3-9

on worksheets, B-1–B-10

of operation, 3-3, 4-2

model 3611, carrier. See 3000-A2-GA31

MPTC or MPTT, factory default settings, A-1–A-4

multichannel multipoint. See MCMP

MUX Funct, 4-1

configuration examples, C-1–C-6

configuration options, factory defaults, A-1–A-4

for digital bridging, 4-5

for MCMP/TDM Setup, 4-2

MUX Portn Options, 4-1

for digital bridge, 4-11–4-13

for TDM & MCMP, 4-7–4-11

MUX Setup Options, 4-1

digital bridge, 4-5–4-6

MCMP/TDM, 4-2–4-5

Nnetwork interface, 1-2

No Ext Timing, message, D-4

OOpts

configuration options, 3-8–3-9

configuration tables, 4-1

configuration worksheets, B-1–B-10

Overspeed, 4-7

PPCC Buffer

for digital bridging, 4-11

for TDM/MCMP, 4-8

PCC/Async Conflc, message, D-4

PList, 3-9

Pn/n FEPSh, for MCMP Setup, 4-4–4-5

poll list, 3-9, D-1

port, interface operation, 2-1

Port Cntrl

for digital bridging, 4-6

for MCMP/TDM Setup, 4-3–4-4

Port Off Undersp, message, D-5

Port Speed Options, 4-1

MCMP channel-to-port assignment, 4-14

MCMP/TDM, 4-14

power-up routine, 2-5

Prts>2: FEP Chan, message, D-5

COMSPHERE 3600 Series Data Service Units

Index-4 March 1999 3610-A2-GB48-70

Rrate adaption, D-1

reconfiguring ports, changing interface for Flex models,

2-5

Remote branch, 3-3

reset, Control branch, 3-10

RTS

AnStr Conflc message, D-5

FrcOn Requir message, D-5

TxCrr Conflc message, D-5

RTS Cntrl

for digital bridging, 4-11

for TDM/MCMP, 4-7

RTS/CTS Del

for digital bridging, 4-11

for TDM/MCMP, 4-9

RxCarrSel

for digital bridging, 4-11

for TDM/MCMP, 4-8

SShare DevA

for digital bridging, 4-6

for MCMP Setup, 4-2

Reqd message, D-5

Share DevB

for digital bridging, 4-6

for MCMP Setup, 4-3

Inval message, D-5

SNA Diagnostic Interface. See LPDA–2

Status (Stat) branch, 3-4

Circuit Quality (CircQ), 3-5

DTE status, 3-4

Health and Status (H/S), 3-4

Identity (ID), 3-5

Terminal Power (TPwr), 3-5

status indicators, 3-2

Stop Bits, 4-7

switched-carrier emulation, 1-1

Sync to Async, Req message, D-5

TTDM

capability, 1-1–1-2

changing DSD V.35 interface setting, 2-2, 2-4

changing the Flex interface, 2-2

features, 1-2

front panel, 3-2

mode, 4-2

port configuration options, 4-7–4-11

separating from DSU, 2-3

status indicators, 3-2–3-3

worksheets, B-1–B-8

TDM/Flex, reconfiguring interface, 2-5, 2-6

technical specifications, E-1–E-4

TDM, E-3

terminal power, status, 3-5

Test branch, 3-6

Abort, 3-6

Device Test (Devic), 3-7

Loopback (Lpbk), 3-7

testing, network verification, 2-6

tests

bit error rate test (BERT), 3-8

device, 3-7

dial tone (DTone), 3-8

digital, 3-8

end-to-end (EE), 3-8

loopback, 3-7

time division multiplexer. See TDM

Too Many Ports, message, D-5

top-level menu, 3-3, A-1–A-3

troubleshooting, D-1

TxCarrSel

for digital bridging, 4-11

for TDM/MCMP, 4-8

UUnderspeed, 4-14

UpstrmPort

for digital bridging, 4-13

for TDM/MCMP, 4-10

VV.13&MCMP Bckup, message, D-5

V.35 interface

adapter, 2-1

changing to EIA-232, 2-2, 2-4–2-6

verification, testing network, 2-6

Wworksheets, configuration options, B-1–B-10