WPIM T1 1482 01

User Manual: WPIM T1

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WPIM-T1
LOCAL MANAGEMENT GUIDE

NOTICE
Cabletron Systems reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.
CAUTION: THE WPIM-T1 IS INTENDED TO BE INSTALLED IN CSA CERTIFIED/UL LISTED
EQUIPMENT BY A QUALIFIED SERVICE PERSON. CHECK THE EQUIPMENT OPERATION/
INSTALLATION INSTRUCTIONS AND/OR EQUIPMENT MANUFACTURER TO VERIFY/
CONFIRM YOUR EQUIPMENT IS SUITABLE FOR INSTALLED APPLICATION CARDS.
CAUTION: ALWAYS DISCONNECT T1 BOARD (THE ONE WITH THE TELEPHONE PLUG/
JACK) FROM THE TELEPHONE SYSTEM WHEN INSTALLING OR WHEN THE COVERS
ARE REMOVED FROM THE HOST PRODUCT.
CAUTION: APPLY THE ENCLOSED ADHESIVE WARNING LABEL TO THE OUTSIDE OR
INSIDE OF THE EQUIPMENT ENCLOSURE ADJACENT TO THE T1 CARD.

© Copyright 1995 by:
Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Part Number: 9031482-01 November 1995
BRIM, EMM-E6, MicroMMAC and NBR-620 are registered trademarks and WPIM is a trademark
of Cabletron Systems, Inc.
All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.

Printed On

Recycled Paper

WPIM-T1 LOCAL MANAGEMENT GUIDE

NOTICE
FCC NOTICE
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment.
This equipment uses, generates, and can radiate radio frequency energy and if not installed in
accordance with the operator’s manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference in which case the user
will be required to correct the interference at his own expense.
WARNING: Changes or modifications made to this device which are not expressly approved by the
party responsible for compliance could void the user’s authority to operate the equipment.

IC NOTICE
The Industry Canada label identifies certified equipment. This certification means that the equipment
meets certain telecommunications network protective, operational and safety requirements. The
department does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’s inside wiring associated with a single
line individual service may be extended by means of a certified connector assembly (telephone
extension cord). The customer should be aware that compliance with the above conditions may not
prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
facility, telephone lines and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
CAUTION: USERS SHOULD NOT ATTEMPT TO MAKE SUCH CONNECTIONS
THEMSELVES, BUT SHOULD CONTACT THE APPROPRIATE ELECTRIC INSPECTION
AUTHORITY, OR ELECTRICAN, AS APPROPRIATE.
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.

WPIM-T1 LOCAL MANAGEMENT GUIDE

NOTICE
CABLETRON SYSTEMS, INC.
PROGRAM LICENSE AGREEMENT
IMPORTANT:

Before utilizing this product, carefully read this License Agreement.

This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”)
that sets forth your rights and obligations with respect to the Cabletron software program (the
“Program”) contained in this package. The Program may be contained in firmware, chips or other
media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME
BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND
THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT
AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

CABLETRON SOFTWARE PROGRAM LICENSE
1.

LICENSE. You have the right to use only the one (1) copy of the Program provided in this
package subject to the terms and conditions of this License Agreement.
You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the United States or as authorized in writing by Cabletron.

OTHER RESTRICTIONS.
Program.

You may not reverse engineer, decompile, or disassemble the

APPLICABLE LAW. This License Agreement shall be interpreted and governed under the
laws and in the state and federal courts of New Hampshire. You accept the personal jurisdiction
and venue of the New Hampshire courts.

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY
1.

EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including
its documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE
ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING
HARDWARE.

NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS,
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL,
INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS)
ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT,
EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

WPIM-T1 LOCAL MANAGEMENT GUIDE

iii

NOTICE
UNITED STATES GOVERNMENT RESTRICTED RIGHTS
The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer
software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the
Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects
is proprietary data belonging to Cabletron and/or its suppliers.
For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the
DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its
successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in
subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at 252.2277013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867.

WPIM-T1 LOCAL MANAGEMENT GUIDE

TABLE OF CONTENTS
CHAPTER 1
1.1
1.2
1.3
1.4
1.5

USING THIS MANUAL ................................................................ 1-1
GETTING HELP .......................................................................... 1-2
WPIM-T1 FEATURES ................................................................. 1-3
RELATED MANUALS.................................................................. 1-3
WPIM-T1 SPECIFICATIONS ...................................................... 1-4

CHAPTER 2
2.1

2.2
2.3

2.4

2.5

2.6

INTRODUCTION

LOCAL MANAGEMENT

THE WAN PHYSICAL CONFIGURATION SCREEN .................. 2-2
2.1.1 WAN Physical Configuration Screen Fields ................... 2-2
2.1.2 WPIM-T1 Configuration Fields ....................................... 2-3
2.1.3 The WPIM Timeslot Configuration Table........................ 2-5
THE WAN INTERFACE CONFIGURATION SCREEN ............... 2-7
2.2.1 WAN Interface Configuration Screen Fields................... 2-7
FULL T-1 CONFIGURATION USING PPP................................ 2-10
2.3.1 WPIM-T1 Physical Configuration.................................. 2-11
2.3.2 WPIM-T1 Interface Configuration ................................. 2-12
FRACTIONAL T-1 CONFIGURATION USING PPP.................. 2-14
2.4.1 WPIM-T1 Physical Configuration.................................. 2-15
2.4.2 WPIM-T1 Interface Configuration ................................. 2-16
FRAME RELAY CONFIGURATION .......................................... 2-18
2.5.1 WPIM-T1 Physical Configuration.................................. 2-19
2.5.2 WPIM-T1 Interface Configuration ................................. 2-20
LEX CONFIGURATION............................................................. 2-21
2.6.1 WPIM-T1 Physical Configuration.................................. 2-22
2.6.2 WPIM-T1 Interface Configuration ................................. 2-23

APPENDIX A

WAN INTERFACE CABLES SPECIFICATIONS

APPENDIX B

FCC PART 68 - USER’S INFORMATION

APPENDIX C

WAN TERMS AND ACRONYMS

WPIM-T1 LOCAL MANAGEMENT GUIDE

CHAPTER 1
INTRODUCTION
Welcome to the Cabletron Systems WPIM-T1 Local Management Guide.
This manual explains how to use Local Management to control and
manage the Cabletron Systems WPIM-T1. Appendix A of this guide
provides connector and pinout information for the WPIM-T1.
The WPIM-T1 resides in and provides connectivity/functionality to
Cabletron Systems Wide Area Network (WAN) modules such as the
BRIM-W6.
Before using this manual you must:
•

Install the WPIM-T1 in a Wide Area Network module. Refer to the
appropriate manual (i.e., the BRIM-W6 User’s Guide) for
installation and troubleshooting procedures.

•

Setup and access Local Management. Refer to the appropriate MIM,
standalone hub, or module User’s Guide for instructions on setting
up and accessing Local Management.

1.1

USING THIS MANUAL

Read through this manual completely to familiarize yourself with its
content and to gain an understanding of the features and capabilities of
the WPIM-T1. You should have a general working knowledge of the
following data communications networks and their physical layer
components before using the WPIM-T1.
•
•
•

WAN
Ethernet and IEEE 802.3
Token Ring and 802.5

WPIM-T1 LOCAL MANAGEMENT GUIDE

1-1

CHAPTER 1: INTRODUCTION

The following list briefly explains each chapter of the WPIM-T1 manual.
Chapter 1, Introduction, outlines the contents of this manual, describes
WPIM-T1 features, lists specifications, and concludes with a list of
related manuals.
Chapter 2, Local Management, describes how to use Local Management
to setup the WPIM-T1.
Appendix A, WAN Interface Cable Specifications, provides Cabletron
part numbers and connector information for WPIM-T1 interface cables.
Appendix B, FCC Part 68-User’s Information, explains the FCC rules
for the WPIM-T1.
Appendix C, WAN Terms and Acronyms, is a brief glossary of the terms
used in this book.

1.2

GETTING HELP

If you need additional support related to the WPIM-T1, or if you have any
questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:
By phone ..........................(603) 332-9400
Monday-Friday; 8am - 8pm Eastern Time
By CompuServe ...............GO CTRON from any ! prompt
By Internet mail ...............support@ctron.com
By FTP .............................ctron.com (134.141.197.25)
Login: anonymous, Password: your email address

1-2

WPIM-T1 LOCAL MANAGEMENT

WPIM-T1 FEATURES

1.3

WPIM-T1 FEATURES

The WPIM-T1 extends the functionality of your Wide Area Network
module to allow remote connectivity using WAN services such as T-1, or
Fractional T-1.
The WPIM-T1 provides a T-1 interface that includes a built-in Channel
Service Unit/Digital Service Unit (CSU/DSU) for direct connection to a
T-1 line. This WPIM supports both Full T-1 or Fractional T-1 using 56 or
64 Kbps timeslots.
WAN Protocols

As of this printing, the module in which the WPIM-T1 is installed
supports the following WAN protocols (refer to the Release Notes
included with the host MIM or standalone hub for a list of current
protocols):
•
•
•
•

Point to Point Protocol (LCP) and as defined by RFC 1661
Point to Point Protocol (BNCP) and as defined by RFC 1638
Point to Point Protocol LAN Extender (PPP/LEX)
Frame Relay as defined by RFC 1490

MIB Support

Refer to the Release Notes included with the host MIM or standalone hub
for a list of all MIBs supported by the WPIM-T1. For information about
how to extract and compile individual MIBs, contact Cabletron Systems
Technical Support (see Getting Help).

1.4

RELATED MANUALS

Refer to the manual included with the host Wide Area Network module
(e.g., the BRIM-W6 User’s Guide) to supplement the procedures and
other technical data provided in this manual. Refer to the MIM,
standalone hub or module User’s Guides and/or Local Management
Guides for Local Management setup information. This manual references
procedures in these manuals, where appropriate, but does not repeat them.

WPIM-T1 LOCAL MANAGEMENT GUIDE

1-3

CHAPTER 1: INTRODUCTION

1.5

WPIM-T1 SPECIFICATIONS

This section describes the environmental specifications and safety and
approval requirements for the WPIM-T1. Cabletron Systems reserves the
right to change these specifications at any time without notice.
Environmental Requirements

Operating Temperature:

+5° to +40°C (41° to 104°F)

Non-operating Temperature: -30° to +90°C (-22° to 194°F)
Operating Humidity:

5% to 95% (non-condensing)

Safety

This unit meets the safety requirements of UL1950 (without D3
deviations), CSA C22.2 No. 950, and EN60950.
EMI

This unit meets the EMI requirements of FCC Part 15 Class A.
EMC

This unit meets the EMC requirements of EN50082-1 including:
IEC 801-2 (ESD), IEC 801-3 (Radiated Susceptibility),
and IEC 801-4 (EFT/B).
NEBS

This unit has been tested by Bellcore and found to comply with the
following Bellcore standards:
TR-NWT-000063 Network Equipment Building System (NEBS)
Generic Equipment Requirements.
GR-1089-CORE EMC and Electrical Safety Generic Criteria for
Network Telecommunications Equipment.
TELECOM

The WPIM-T1 meets FCC Part 68 (see Appendix B).

1-4

WPIM-T1 LOCAL MANAGEMENT

CHAPTER 2
LOCAL MANAGEMENT
This Chapter explains how to configure the WPIM-T1 through Local
Management. The WAN Physical Configuration screen and the WAN
Interface Configuration screen appear as Local Management menu
selections after you install the WPIM-T1 into a WAN module such as the
BRIM-W6 and then install the BRIM into a MIM or standalone hub.
Refer to the MIM or standalone hub technical documentation for
instructions about how to set up and access Local Management.
This chapter contains the following sections.
•

The WAN Physical Configuration screen

2.1

•

The WAN Interface Configuration screen

2.2

•

Full T-1 Configuration Using PPP

2.3

•

Fractional T-1 Configuration Using PPP

2.4

•

Frame Relay Configuration

2.5

•

LEX Configuration

2.6

Read Sections 2.1 and 2.2 to gain an understanding of the WPIM-T1
Local Management screens. Sections 2.3 through 2.6 provide examples
for setting up the WPIM-T1 for full or fractional T-1 in a PPP (LEX or
BNCP) environment, or for configuring the WPIM-T1 for Frame Relay.

TIP

Navigate through the WPIM Local Management Screens by
using the following keyboard commands:
SPACEBAR to toggle between selections in a field.
ENTER (RETURN) to implement a selection.
Arrow keys to move up, down or sideways within the screen.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-1

CHAPTER 2: LOCAL MANAGEMENT

2.1

THE WAN PHYSICAL CONFIGURATION SCREEN

To access the WAN Physical Configuration screen from the Feature
Selection screen, use the arrow keys to highlight the WAN Configuration
option, then press ENTER. The screen shown in Figure 2-1 appears.

Local Management

Flash Image Version: xx.xx.xx
WAN PHYSICAL CONFIGURATION

WPIM 1

WPIM 2

Type:
T1
BRIM #: 1
Mode:
[Primary]
Active:
Yes
Interfaces: 002-025

Type:
SY
BRIM #: 1
Mode:
[Secondary]
Active:
No
Interfaces: 026
WPIM 1 Timeslot Configuration

WPIM 1 Line Configuration
T1 Timeslot View:
T1 Line Coding:
T1 Frame Type:
T1 Tx Clock Source:
T1 Line Buildout:
T1 Network Loopback:

SAVE

[Active]
[B8ZS]
[ESF]
[Loop-Timing]
[0 db]
[None]

[WPIM 1]

01-08

000 000 000 000 000 000 000 000

09-16 000 000 000 000 000 000 000 000
17-24 000 000 000 000 000 000 000 000

WAN INT CONFIG

RETURN
148201

Figure 2-1. WAN Physical Configuration Screen

2.1.1

WAN Physical Configuration Screen Fields

The following sections describe WAN Physical Configuration screen
fields and instructions for setting them. The WAN Physical Configuration
screen lets you configure the WPIM or “Physical Interface.”
Cabletron offers a variety of WPIMs. The following Physical
Configuration screen examples show the WPIM-T1 and the WPIM-SY.
Select the WPIM you wish to configure by using the arrow keys to
highlight the WPIM command field at the bottom of the screen. Use the
SPACEBAR to select the appropriate WPIM, then press ENTER. The
WAN Configuration screen automatically displays unique configuration
fields for each WPIM as shown in Figure 2-1.
2-2

WPIM-T1 LOCAL MANAGEMENT GUIDE

THE WAN PHYSICAL CONFIGURATION SCREEN

The WAN Physical Configuration screen displays the following
information for each WPIM:
WPIM 1-4

Displays configuration information for as many as four WPIMs.
Each BRIM-W6 supports two WPIMs. Some of Cabletron’s
products (e.g., the NBR-620 or the EMM-E6) will support two
BRIM-W6 modules providing connectivity for as many as four
WPIMs. Only one WPIM per BRIM-W6 can be active.

NOTE

Type

Displays the WPIM type.
BRIM #

Displays the BRIM slot in which the WPIM resides.
Mode

Displays the WPIM mode. Toggles between Primary and Secondary. In a
device such as the BRIM-W6 where two WPIMs are utilized but only one
can be active at a given time, the second WPIM installed or recognized
defaults to Secondary.
Active

Displays the status of the WPIM, Yes or No.
Interfaces

Displays the interfaces available to each WPIM.

2.1.2

WPIM-T1 Configuration Fields

The configuration fields displayed on the Physical Configuration screen
shown in Figure 2-1 vary depending on the type of WPIM. The examples
in this Local Management Guide cover the WPIM-T1. Each Cabletron
WPIM has a Local Management Guide that provides specific
configuration guidelines and examples.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-3

CHAPTER 2: LOCAL MANAGEMENT

NOTE

The service provider (i.e., AT&T, Sprint, MCI, NYNEX, etc.)
determines the settings for the following fields. Consult the
service provider for the correct settings.

T1 Timeslot View

Displays the status of the Timeslot Configuration Table. The selections for
this field toggle between Active and New. The Active setting displays
current Timeslot Configuration table settings. The default setting is
Active. The New setting allows you to change Timeslot Configuration
table settings. The default setting for the Timeslot Configuration table is
all Timeslots not assigned (000).
T1 Line Coding

Displays the line coding for the physical T-1 line. The selections toggle
between B8ZS and AMI. The default setting for this field is B8ZS.
T1 Frame Type

Displays the T-1 Frame type. The selections toggle between ESF and D4.
The default setting for this field is ESF.
T1 Tx Clock Source

Displays the T-1 Transmit Clock Source. The selections for this field
toggle between Loop-Timing (Extracted Line Data) and Local-Timing
(Internal Clock). The default setting for this field is Loop-Timing.
T1 Line Buildout

Displays the line coding for the physical T-1 line. Set this to 0 dB unless
the service provider recommends another setting. The default setting for
this field is 0 dB. The selections for this setting toggle between the
following levels.
•
•
•
•
•
•
•

2-4

0 dB
-7.5 dB
-15 dB
133-266 Ft
267-399 Ft
400-533 Ft
534-655 Ft

WPIM-T1 LOCAL MANAGEMENT GUIDE

THE WAN PHYSICAL CONFIGURATION SCREEN
T1 Network Loopback

Network Loopback is a testing procedure that segments the line and
allows the user to isolate faults. The selections for this field toggle
between None and Line-Loop. In Line-Loop all 24 channels are looped
back to the T-1 line.The WPIM-T1 must be in Loop-Timing mode to use
this option. The default setting is None.

2.1.3

The WPIM Timeslot Configuration Table

The WPIM Timeslot Configuration table allows you to configure the way
in which the Cabletron WAN module uses the T-1 line. The configuration
table consists of 24 Timeslots. You must assign each Timeslot an
Interface number (for example, 002 for an active Interface number or 000
if the Timeslot is not used). When you lease an entire T-1 line, you can use
all 24 Timeslots (the full T-1 bandwidth). If you lease only a fraction of
the T-1, the service provider tells you which Timeslots to use.
You can utilize Timeslots any way you choose. The WPIM-T1 supports
Time Division Multiplexing (TDM) allowing channelization of circuits
(Timeslots) within the public network. For example, if your BRIM-W6
has access to a full T-1 (24 Timeslots), and you want to communicate with
two other sites, your configuration might look like Figure 2-2.

SITE #2
16 Timeslots

SITE #1
Telco Cloud
24 Timeslots

SITE #3
8 Timeslots
1482_02

Figure 2-2. Sample Timeslot Configuration

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-5

CHAPTER 2: LOCAL MANAGEMENT

Figure 2-3 shows a sample configuration for three sites. Of the 24
Timeslots, Site #1 uses 16 to communicate with Site #2 and the remaining
8 to communicate with Site #3. This configuration varies tremendously
depending on how the service provider maps out the T-1 Timeslots. Your
service provider will tell you which Timeslots are active.

01-08

005 005 005 005 005 005 005 005

09-16

005 005 005 005 005 005 005 005

17-24

000 000 000 000 000 000 000 000

01-08

005 005 005 005 005 005 005 005

09-16

005 005 005 005 005 005 005 005

17-24

006 006 006 006 006 006 006 006

01-08

006 006 006 006 006 006 006 006

SITE #1

09-16

000 000 000 000 000 000 000 000

17-24

000 000 000 000 000 000 000 000

SITE #2

SITE #3
1482_03

Figure 2-3. Sample Configuration
Site #1 is using the full T-1, so all the Timeslots must have an Interface
assignment. Site #2 and Site #3 only use a fraction of the T-1, but the total
quantity of Timeslots must match those of Site #1. Unused Timeslots
receive an Interface number of 000.

NOTE

2-6

The Interface numbers of Site #1, Site #2 and Site #3 do not
have to match. Only the quantity of Timeslots must match (the
service provider assigns the Timeslots).

WPIM-T1 LOCAL MANAGEMENT GUIDE

THE WAN INTERFACE CONFIGURATION SCREEN

2.2

THE WAN INTERFACE CONFIGURATION SCREEN

This section describes the features of the WAN Interface Configuration
screen. Access the screen by using the arrow keys to highlight the WAN
Int Config option at the bottom of the Physical Configuration screen, then
press ENTER. The WAN Interface Configuration screen shown in
Figure 2-4 appears.
Local Management

Flash Image Version: xx.xx.xx
WAN INTERFACE CONFIGURATION

PT# IF# LID
Interface Number:
Data Compression:
Max Xmit Unit:
Line Coding:
Active Protocol:

SAVE

[002]
[NO]
[0]
[NONE]
[NONE]

001 001 Enet
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016

STATE
UP

PT# IF# LID STATE
017
018
019
020
021
022
023
024
025
026
027
028
029
030
031
032

RETURN
148204

Figure 2-4. WAN Interface Configuration Screen

2.2.1

WAN Interface Configuration Screen Fields

This section describes the WAN Interface Configuration screen fields.
Interface Number

Displays the active Interface Numbers. Use this field to configure the
Interface Numbers you assigned to the Timeslots on the WAN Physical
Configuration screen.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-7

CHAPTER 2: LOCAL MANAGEMENT
Data Compression

Displays the status of Data Compression. This field displays YES or NO.
The default setting is NO.
Max Xmit Unit

User-configured field that displays the maximum packet size that can be
transmitted on the selected interface. The default settings for this field are
8191 for PPP and 4095 for Frame Relay.
Line Coding

Displays the Line Coding for timeslots associated with this interface. This
field displays JBZS, INV-HDLC, or None. The default setting for this
field is None.
Active Protocol

Displays the active OSI Layer protocol. This field toggles between None,
FR (Frame Relay), or PPP (Point-to-Point). The default setting is None.
If you select PPP, the following field appears:
PPP Type:

This field toggles between BNCP or LEX.

If you select FR, the following field appears:
FR LMP:

This field displays NO LMI, Q.933-A or
T1.617-D. Set this field to T1.617-D. The NO
LMI setting is for specialized applications in
which no Frame Relay Link Management is
available or required.

If NO LMI is selected, the following fields are displayed:

2-8

DLCI Address:

This field can be set to values from 0-1023. The
values 0-15 and 1008-1022 are reserved DLCI
addresses.

Circuit State:

Toggles between Active, Inactive and Invalid.

WPIM-T1 LOCAL MANAGEMENT GUIDE

THE WAN INTERFACE CONFIGURATION SCREEN
PT#

Displays the application ports (bridge ports) available from the host
platform to the WAN. If the active protocol is PPP, Local Management
assigns only one application port per interface number (IF#). If the active
protocol is Frame Relay, Local Management assigns the available WAN
bridge ports from the host platform, one per DLCI.
You can assign WAN application ports to the 24 interfaces for the PPP
configuration that suits your needs. In a Frame Relay configuration, you
can assign all WAN application ports to one interface. In this example, the
remaining 23 interfaces would not have WAN application ports available.
The quantity of application ports for a Frame Relay network is
determined by the quantity of DLCIs (Data Link Connection Identifiers)
assigned to that Interface. This is determined either manually or by the
LMP (Link Management Protocol).
IF#

Displays the Interface that is associated with the application port.
LID

Displays the Link Identifier. If the active protocol is Frame Relay, the
Data Link Connection Identifier is displayed. If the active protocol for
this interface is PPP, then PPP appears in this field.
STATE

Displays the status of the application port. If the active protocol is Frame
Relay, this field displays the status as Active, Inactive, or Disabled (for no
LMI). If the active protocol is PPP, this field displays UP (for active) or
DOWN (for inactive).

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-9

CHAPTER 2: LOCAL MANAGEMENT

2.3

FULL T-1 CONFIGURATION USING PPP

This section provides step-by-step instructions for configuring the
WPIM-T1 to use a full T-1 circuit in a PPP environment. This simplified
example assumes the setup shown in Figure 2-5 using a MicroMMAC
hub with a BRIM-W6 containing a WPIM-T1 at Site #1. Configurations
may vary depending on the hub.

SITE #1
Telco Cloud
24 Timeslots

SITE #2
24 Timeslots
1482_05

Figure 2-5. Full T-1 Configuration
The line configuration information shown in Table 2-1 must be supplied
by the service provider.

Table 2-1. Telco Configuration Information
Configuration Information
Required by User

Configuration Information
Supplied by Service Provider

Line Coding

B8ZS or AMI

Frame Type

ESF or D4

Clock Source

Loop Timing or Local Timing

2-10

WPIM-T1 LOCAL MANAGEMENT GUIDE

FULL T-1 CONFIGURATION USING PPP

2.3.1

WPIM-T1 Physical Configuration

Begin the WPIM-T1 configuration by accessing the WAN Physical
Configuration screen through Local Management (Figure 2-1). Access the
WAN Physical Configuration screen from the Feature Selection screen
that first appears when you enter Local Management. Use the arrow keys
to highlight the WAN Configuration option, then press ENTER. The
screen shown in Figure 2-1 appears. Proceed with the following steps:
1. Use the arrow keys to highlight the [WPIM] field at the bottom of the
screen. Press the SPACEBAR to select the WPIM being configured,
then press ENTER.
2. Use the arrow keys to highlight Timeslot View. Press the
SPACEBAR to select New, then press ENTER. The cursor moves to
Timeslot #1 of the Timeslot Configuration Table.
3. Insert an interface number (see NOTE below) into every Timeslot.
Type the number, press ENTER, then use the arrow keys to highlight
the next Timeslot field. Exit this field by using the arrow keys. The
cursor automatically moves to the T1 Line Coding field.

NOTES

The value assigned to the Timeslots is the interface being used
for WAN communication. The available interface range is
displayed on the WAN Physical Configuration screen (see
Figure 2-1). You may insert any of the available interface
numbers into the Timeslots.
In the example shown in Figure 2-1, the interface range for
the MicroMMAC with a WPIM-T1 in slot one of the
BRIM-W6 is 2-25. Although any of these values may be used,
Cabletron Systems recommends using the first available
interface number (in this example interface #2).
The following four steps are based on information supplied by
the service provider. Consult the service provider for the
correct settings.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-11

CHAPTER 2: LOCAL MANAGEMENT

4. Use the arrow keys to highlight T1 Line Coding. Press the
SPACEBAR to select B8ZS or AMI, then press ENTER.
5. Use the arrow keys to highlight T1 Frame Type. Press the
SPACEBAR to select ESF or D4, then press ENTER.
6. Use the arrow keys to highlight T1 TX Clock Source. Press the
SPACEBAR to select Local (no clock source provided by telephone
company) or Loop (clock source provided by telephone company),
then press ENTER.

If you are using a Local clock source, set only one end of the
circuit for Local, the other end must be set for Loop.

CAUTION

7. Use the arrow keys to highlight T1 Line Buildout (LBO). Press the
SPACEBAR to select 0 dB unless the service provider recommends
another setting, then press ENTER.
8. Use the arrow keys to highlight T1 Network Loopback. Press the
SPACEBAR to select None, then press ENTER.
9. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.
10. Access the WAN Interface Configuration screen by using the arrow
keys to highlight the WAN Int Config option, then press ENTER.

2.3.2

WPIM-T1 Interface Configuration

WPIM-T1 LOCAL MANAGEMENT GUIDE

FULL T-1 CONFIGURATION USING PPP

2. Unless the user sets the Max Xmit Unit, the WPIM-T1 automatically
sets the Max Xmit Unit to 8191 (default) after the active protocol
(PPP) is selected.
3. If the T1 Line Coding is B8ZS on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select None, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select BNCP, then press ENTER.
4. If the T1 Line Coding is AMI on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select INV-HDLC, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select BNCP, then press ENTER.
5. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.

NOTE

Upon saving this screen, the interface just configured is
assigned to an application port (PT#) in the table on the right
hand side of the screen.

The WAN configuration is complete. It takes up to 60 seconds for the
WAN Interface to come out of standby and for communications to begin.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-13

CHAPTER 2: LOCAL MANAGEMENT

2.4

FRACTIONAL T-1 CONFIGURATION USING PPP

This section provides step-by-step instructions for configuring the
WPIM-T1 to use a fractional T-1 circuit in a PPP environment. This
example assumes the setup shown in figure 2-6 using two MicroMMAC
hubs each with a BRIM-W6 containing a WPIM-T1. Configurations may
vary depending on the hub. In a fractional T-1 setup, only a portion of the
24 Timeslots or DS-0’s are used.

NOTE

The terms DS-0 (Digital Signal, level 0) and Timeslot are
used synonymously in this guide to represent a standard
64,000 bit/second channel.

SITE #2
with BRIM-W6
16 Timeslots

SITE #1
with BRIM-W6

Telco Cloud

16 Timeslots

1482_06

Figure 2-6. Fractional T-1 Configuration
The line configuration information shown in Table 2-2 must be supplied
by the service provider.
Table 2-2. Telco Configuration Information
Configuration Information
Required by User

Information Supplied by
Service Provider

Line Coding

B8ZS or AMI

Frame Type

ESF or D4

Clock Source

Loop Timing or Local Timing

DS-0’s (Timeslots)

Timeslots being used for each end of
the circuit

2-14

WPIM-T1 LOCAL MANAGEMENT GUIDE

FRACTIONAL T-1 CONFIGURATION USING PPP

2.4.1

WPIM-T1 Physical Configuration

Begin the WPIM-T1 physical configuration by accessing the WAN
Physical Configuration screen through Local Management (Figure 2-1).
Proceed with the following steps:
1. Use the arrow keys to highlight the [WPIM] field at the bottom of the
screen. Press the SPACEBAR to select the WPIM being configured,
then press ENTER.
2. Use the arrow keys to highlight Timeslot View. Press the
SPACEBAR until NEW appears, then press ENTER. The cursor
moves to Timeslot #1 of the Timeslot Configuration Table.
3. Insert an interface number (see NOTE below) into every Timeslot
being used (in the example shown in Figure 2-6, 16 Timeslots are
being used, the rest have zeros in them). Type the number, press
ENTER, then use the arrow keys to highlight the next Timeslot field.
Exit this field by using the arrow keys.The cursor automatically moves
to the T1 Line Coding field.

NOTES

4. Use the arrow keys to highlight T1 Line Coding. Use the SPACEBAR
to select B8ZS or AMI, then press ENTER.
WPIM-T1 LOCAL MANAGEMENT GUIDE

2-15

CHAPTER 2: LOCAL MANAGEMENT

5. Use the arrow keys to highlight T1 Frame Type. Use the SPACEBAR
to select ESF or D4, then press ENTER.
6. Use the arrow keys to highlight T1 Tx Clock Source. Use the
SPACEBAR to select Local (no clock source provided by telephone
company) or Loop (clock source provided by telephone company),
then press ENTER.

If you are using a Local clock source, set only one end of the
circuit for Local, the other end must be set for Loop.

CAUTION

2.4.2

WPIM-T1 Interface Configuration

This screen is accessed through the WAN Physical Configuration screen.
Proceed with the following steps to configure the WAN Interface through
Local Management.
1. Set the WAN connection Interface Number by typing the same
number into the Interface Number field that was input into the
Timeslots in the WAN Physical Configuration screen, then press
ENTER (see NOTE on page 2-15).

2-16

WPIM-T1 LOCAL MANAGEMENT GUIDE

FRACTIONAL T-1 CONFIGURATION USING PPP

2. Unless the user sets the Max Xmit Unit, the WPIM-T1 automatically
sets the Max Xmit Unit to 8191 (default) after the active protocol
(PPP) is selected.
3. If the T1 Line Coding is B8ZS on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select NONE, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select BNCP, then press ENTER.
4. If the T1 Line Coding is AMI on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select INV-HDLC, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select BNCP, then press ENTER.
5. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.

NOTE

Upon saving this screen, the interface just configured is
assigned to an application port (PT#) in the table on the right
hand side of the screen.

The WAN configuration is complete. It takes up to 60 seconds for the
WAN Interface to come out of standby and for communications to begin.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-17

CHAPTER 2: LOCAL MANAGEMENT

2.5

FRAME RELAY CONFIGURATION

This section provides step-by-step instructions for configuring the
WPIM-T1 to use a T-1 circuit in a Frame Relay environment. This
example assumes the setup shown in Figure 2-7 using two MicroMMAC
hubs each with a BRIM-W6 containing a WPIM-T1. Configurations may
vary depending on the hub.

SITE #1
Telco Cloud
24 Timeslots

SITE #2
24 Timeslots
1482_05

Figure 2-7. Frame Relay Configuration
The following information must be supplied to or by the service provider.
•

LMP type:

ANSI T1.617 Annex D

The line configuration information shown in Table 2-3 must be supplied
by the service provider.
Table 2-3. Telco Configuration Information
Configuration Information
Required by Customer

Information Supplied by
Service Provider

Line Coding

B8ZS or AMI

Frame Type

ESF or D4

Clock Source

Loop Timing or Local Timing

DS-0’s (Timeslots)

Timeslots being used for each end of
the circuit

2-18

WPIM-T1 LOCAL MANAGEMENT GUIDE

FRAME RELAY CONFIGURATION

2.5.1

WPIM-T1 Physical Configuration

Begin the WPIM-T1 physical configuration by accessing the WAN
Physical Configuration screen through Local Management (Figure 2-1).
Proceed with the following steps:
1. Use the arrow keys to highlight the [WPIM] field at the bottom of the
screen. Press the SPACEBAR to select the WPIM being configured,
then press ENTER.
2. Use the arrow keys to highlight Timeslot View. Press the
SPACEBAR to select New, then press ENTER. The cursor moves to
Timeslot #1 of the Timeslot Configuration Table.
3. Insert an interface number (see NOTE below) into every Timeslot
being used. Type the number, press ENTER, then use the arrow keys
to highlight the next Timeslot field. Exit this field by using the arrow
keys. The cursor automatically moves to the T1 Line Coding field.

NOTES

4. Use the arrow keys to highlight T1 Line Coding. Press the
SPACEBAR to select B8ZS or AMI, then press ENTER.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-19

CHAPTER 2: LOCAL MANAGEMENT

5. Use the arrow keys to highlight T1 Frame Type. Press the
SPACEBAR to select ESF or D4, then press ENTER.
6. Use the arrow keys to highlight T1 Tx Clock Source. Press the
SPACEBAR to select Local (no clock source provided by telephone
company) or Loop (clock source provided by telephone company),
then press ENTER.

If you are using a Local clock source, set only one end of the
circuit for Local, the other end must be set for Loop.

CAUTION

7. Use the arrow keys to highlight T1 Line Buildout (LBO). Press the
SPACEBAR to select to 0 dB unless the service provider recommends
another setting, then press ENTER.
8. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.
9. Access the WAN Interface Configuration screen by using the arrow
keys to highlight the WAN Int Config option, then press ENTER.

2.5.2

WPIM-T1 Interface Configuration

This screen is accessed through the WAN Physical Configuration screen.
Proceed with the following steps to configure the WAN Interface through
Local Management.
1. Set the Interface Number that is being used for the WAN connection
by typing the same number into the Interface Number field that was
input into the Timeslots in the WAN Physical Configuration screen,
then press ENTER (see NOTE on page 2-19).
2. Use the arrow keys to highlight Line Coding. Press the SPACEBAR
to select None, then press ENTER.
3. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select FR, then press ENTER.
2-20

WPIM-T1 LOCAL MANAGEMENT GUIDE

LEX CONFIGURATION

4. Use the arrow keys to highlight FR LMP. Press the SPACEBAR to
select T1.617-D, then press ENTER.
5. Use the arrow keys to highlight SAVE, then press ENTER. The
message “Save Done!” appears and Local Management saves the
changes to memory.

NOTE

Upon saving this screen, the interface just configured is
assigned to an application port (PT#) in the table on the right
hand side of the screen once the device starts communicating
with the service provider’s switch.

The WAN configuration is complete. Communications between the
WPIM-T1 and the service provider’s switch takes approximately 1 to 2
minutes to begin. A status of Inactive appears until both ends of the PVC
(Permanent Virtual Circuit) are configured. Once both end devices have
negotiated link management with the switches, the status field reads
Active.

2.6

LEX CONFIGURATION

This section provides step-by-step instructions for configuring the
WPIM-T1 to operate in a LEX environment. LEX (LAN Extender) is a
Cisco Systems protocol that allows a core router to communicate to a
remote site using PPP.
The line configuration information shown in Table 2-4 must be supplied
by the service provider.
Table 2-4. Telco Configuration Information
Configuration Information
Required by User

Configuration Information
Supplied by Service Provider

Line Coding

B8ZS or AMI

Frame Type

ESF or D4

Clock Source

Loop Timing or Local Timing

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-21

CHAPTER 2: LOCAL MANAGEMENT

2.6.1

WPIM-T1 Physical Configuration

Begin the WPIM-T1 configuration by accessing the WAN Configuration
screen through Local Management (Figure 2-1). Access the WAN
Physical Configuration screen from the Feature Selection screen that first
appears when you enter Local Management. Use the arrow keys to
highlight the WAN Configuration option, then press ENTER. The screen
shown in Figure 2-1 appears. Proceed with the following steps:
1. Use the arrow keys to highlight the [WPIM] field at the bottom of the
screen. Press the SPACEBAR to select the WPIM being configured,
then press ENTER.
2. Use the arrow keys to highlight Timeslot View. Press the
SPACEBAR to select New, then press ENTER. The cursor moves to
Timeslot #1 of the Timeslot Configuration Table.
3. Insert an interface number (see NOTE below) into every Timeslot
being used. Type the number, press ENTER, then use the arrow keys
to highlight the next Timeslot field. Exit this field by using the arrow
keys. The cursor automatically moves to the T1 Line Coding field.

NOTES

4. Use the arrow keys to highlight T1 Line Coding. Press the
SPACEBAR to select B8ZS or AMI, then press ENTER.
2-22

WPIM-T1 LOCAL MANAGEMENT GUIDE

LEX CONFIGURATION

If you are using a Local clock source, set only one end of the
circuit for Local, the other end must be set for Loop.

CAUTION

7. Use the arrow keys to highlight T1 Line Buildout (LBO). Press the
SPACEBAR to select 0 db unless the service provider recommends
another setting, then press ENTER.
8. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.
9. Access the WAN Interface Configuration screen by using the arrow
keys to highlight the WAN Int Config option, then press ENTER.

2.6.2

WPIM-T1 Interface Configuration

This screen is accessed through the WAN Physical Configuration screen.
Refer to Figure 2-4 and proceed with the following steps to configure the
WAN Interface through Local Management.
1. Set the Interface Number that is being used for the WAN connection
by typing the same number into the Interface Number field that was
input into the Timeslots in the WAN Physical Configuration screen,
then press ENTER. (see NOTE on page 2-22).
2. Unless the user sets the Max Xmit Unit, the WPIM-T1 automatically
sets the Max Xmit Unit to 8191 (default) after the active protocol
(PPP) is selected.

WPIM-T1 LOCAL MANAGEMENT GUIDE

2-23

CHAPTER 2: LOCAL MANAGEMENT

3. If the T1 Line Coding is B8ZS on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select None, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select LEX, then press ENTER.
4. If the T1 Line Coding is AMI on the previous screen:
a. Use the arrow keys to highlight Line Coding. Press the
SPACEBAR to select INV-HDLC, then press ENTER.
b. Use the arrow keys to highlight Active Protocol. Press the
SPACEBAR to select PPP, then press ENTER.
c. Use the arrow keys to highlight PPP Type. Press the SPACEBAR
to select LEX, then press ENTER.
5. Use the arrow keys to highlight the SAVE command, then press
ENTER. The message “Save Done!” appears and Local Management
saves the changes to memory.

NOTE

Upon saving this screen, the interface just configured is
assigned to an application port (PT#) in the table on the right
hand side of the screen.

The WAN configuration is complete. It takes up to 60 seconds for the
WAN Interface to come out of standby and for communications to begin.

2-24

WPIM-T1 LOCAL MANAGEMENT GUIDE

APPENDIX A
WAN INTERFACE CABLES SPECIFICATIONS
This appendix provides the Cabletron Systems part number and connector
information for the WPIM-T1 Interface Cables.
Table A-1 lists Cabletron Systems part numbers for the interface cables
for the WPIM-T1. A standard 20 foot cable is available or the customer
may specify the length of cable when ordering.

Table A-1. Cabletron WPIM-T1 Cable Part Numbers
Interface Cable

Cabletron Part Number

T1 Line Interface Cable

9372094-201

T1 Line Interface Cable

9372094-L2

1. Standard 20 foot T1 Line Interface Cable.
2. (L denotes length required in feet or meters). For example: 9372094-3
denotes a 3 foot cable; 9372094-3M denotes a 3 meter cable.

A.1

CABLE ASSEMBLIES AND PINOUTS

The following section provides connector information for the WPIM-T1
interface cable.

Table A-2. WPIM-T1 Connector Information
Cabletron interface cable part number

9372094-L

Description

T1 line interface cable

Connector 1

RJ48C

Connector 2

RJ48C

WPIM-T1 LOCAL MANAGEMENT GUIDE

A-1

APPENDIX A: WAN INTERFACE CABLE PINOUTS

Table A-3. WPIM-T1 RJ48 Connector Pin Assignments
Pin

Signal

Receive Ring

Receive Tip

Not Used

Transmit Ring

Transmit Tip

Not Used

Shield Ground

Table A-4. RJ48 DTE Pin Assignments
Pin

Signal

Receive Ring

Receive Tip

Not Used

Transmit Ring

Transmit Tip

Not Used

Shield Ground

Table A-5. RJ48 Network Pin Assignments

A-2

Signal

Receive Ring

Receive Tip

Not Used

Transmit Ring

Transmit Tip

Not Used

WPIM-T1 LOCAL MANAGEMENT GUIDE

APPENDIX A: WAN INTERFACE CABLE PINOUTS

WPIM-T1 LOCAL MANAGEMENT GUIDE

A-3

APPENDIX B
FCC PART 68 - USER’S INFORMATION
The following instructions are to ensure compliance with the Federal
Communications Commission (FCC) Rules, Part 68.
1. All direct connections to T1 lines must be made using standard plugs
and jacks.
2. Before connecting your unit, you must inform the local telephone
company of the following information:
Port ID

REN/SOC

FIC

USOC

WPIM-T1

6.0N

04DU9-BN
04DU9-DN
04DU9-1KN
04DU9-1SN
04DU9-1ZN

RJ48C

3. If the unit appears to be malfunctioning, it should be disconnected
from the telephone lines until you learn if your equipment or the
telephone line is the source of the trouble. If your equipment needs
repair, it should not be reconnected until it is repaired.
4. The CSU/DSU has been designed to prevent harm to the T1 network.
If the telephone company finds that the equipment is exceeding
tolerable parameters, the telephone company can temporarily
disconnect service, although they will attempt to give advance notice
if possible.
5. Under the FCC Rules, no customer is authorized to repair this
equipment. This restriction applies regardless of whether the
equipment is in or out of warranty.

WPIM-T1 LOCAL MANAGEMENT GUIDE

B-1

APPENDIX B: FCC PART 68

6. If the telephone company alters their equipment in a manner that will
affect use of this device, they must give you advance warning so as to
give you the opportunity for uninterrupted service. You will be
advised of your right to file a complaint with the FCC.
7. The attached affidavit must be completed by the installer.
8. In the event of equipment malfunction, all repairs should be performed
by our Company or an authorized agent. It is the responsibility of the
users requiring service to report the need for service to our Company
or to one of our authorized agents.
Service can be obtained at Cabletron Systems Technical Support:

B-2

Address:

Cabletron Systems, Inc.
35 Industrial Way,
Rochester, NH 03867-0505

Phone:

(603) 332-9400
Monday - Friday; 8am - 8pm Eastern Time

CompuServe:

GO CTRON from any ! prompt

Internet mail:

support@ctron.com

WPIM-T1 LOCAL MANAGEMENT GUIDE

APPENDIX B: FCC PART 68
AFFIDAVIT FOR THE CONNECTION OF
CUSTOMER EQUIPMENT TO 1.544 MBPS AND/OR
SUBRATE DIGITAL SERVICES

For the work to be performed in the certified territory of
Telco’s name:
State of:
Country of:
I,

, of
(Name of Authorized Representative)

(Customer Name)

,
(Customer’s Address)

(Telephone Number)

being duly sworn, state:
I have responsibility for the operation and maintenance of the terminal
1.544 Mbps
equipment to be connected to
Subrate digital services. The terminal
and/or
equipment to be connected complies with Part 68 of the Commission’s
rules except for the encoded analog content and billing protection
specifications. With respect to encoded analog content and billing
protection:
•

I attest that all operations associated with the establishment,
maintenance and adjustment of the digital CPE with respect to
encoded analog content and encoded billing information
continuously complies with Part 68 of the FCC’s Rules and
Regulations.

•

The digital CPE does not transmit digital signals containing encoded
analog or billing information which is intended to be decoded within
the telecommunications network.

•

The encoded analog and billing protection is factory set and is not
under the control of the customer.

WPIM-T1 LOCAL MANAGEMENT GUIDE

B-3

APPENDIX B: FCC PART 68

I attest that the operator(s) maintainer(s) of the digital CPE responsible
for the establishment, maintenance and adjustment of the encoded analog
content and billing information has (have) been trained to perform these
functions by successfully completing one of the following: Check
appropriate one(s).
a. A training course provided by the manufacturer/grantee of the
equipment used to encode analog signals; or
b. A training course provided by the customer or authorized
representative, using training materials and instructions provided
by the manufacturer/grantee of the equipment used to encode
analog signals; or
c. An independent training course (e.g. trade school or technical
institution) recognized by the manufacturer/grantee of the
equipment used to encode analog signals; or
d. In lieu of the proceeding training requirements, the operator(s)
maintainer(s) is (are) under the control of a supervisor trained in
above.
accordance with
with proper documentation

I agree to provide
(Telco’s Name)

to demonstrate compliance with the information as provided in the
proceeding paragraph, if so requested.
(Signature)
(Title)
(Date)
Subscribed and sworn to me this

day of

, 19

(Notary Public)

My commission expires:

B-4

WPIM-T1 LOCAL MANAGEMENT GUIDE

APPENDIX C
WAN TERMS AND ACRONYMS
This appendix provides definitions for WAN terms and acronyms.

AMI

Alternate Mark Inversion, line coding used with both E-1 and
T-1. A digital 1 is encoded as a “mark” (pulse) and a 0 is
encoded as a “space.” The marks alternate polarity.

ANSI

American National Standards Institute, the US member of the
ISO.

Bearer (B)
Channel

A 64 Kbps channel used with BRI and PRI ISDN services.

Bipolar
Violation

The occurrence of two successive pulses of the same polarity
in a bipolar signal.

B8ZS

Binary 8-Zero Substitution, line coding utilized with ESF
(Expanded Super Frame). Insures the ones density requirement
for digital T-carrier facilities in the public network, while
allowing 64 Kbps clear data per channel.This encoding method
is not supported by some Telcos.

BRI

Basic Rate Interface, minimum rate ISDN subscriber interface,
provides 2 B + 1 D channels (two 64 Kbps “B” (Bearer) channels and one 16 Kbps “D” (Data) signaling channel for a total
of 144 Kbps).

BRIM

Cabletron Systems Bridge Router Interface Module. Expands
the physical connectivity of a host device.

CRC

Cyclic Redundancy Check, an algorithm or process used to
identify corrupted packets in the transmission link.

CSU

Channel Service Unit, a device that terminates the local
loop/digital channel on a customer’s (DSU) premises. The
CSU connects to a DSX-1 interface on the CPE.

WPIM-T1 LOCAL MANAGEMENT GUIDE

C-1

APPENDIX C: WAN TERMS AND ACRONYMS
DCE

Data Communications Equipment, a device such as a modem
that connects the communications circuit with the end device
(see DTE).

Data (D)
Channel

A 16 Kbps channel used with BRI and PRI services for
signaling and control.

D4 Framing, a popular framing format in T-1. Uses 12 T-1
Frames to identify both the channel and the signaling bit.

DLCI

Data Link Connection Identifier, a unique virtual circuit identifier used in Frame Relay. Identifies a given frame as being
from a particular logical link. The DLCI has only local significance.

DSU

Digital Service Unit, converts RS-232 or other terminal
interfaces to DSX-1 (T-1) interface.

DS-0

Digital Signal, level 0, a standard 64,000 bit/second channel.
Synonymous with “Timeslot.”

DTE

Data Terminal Equipment, equipment that originates and
terminates data transmission such as a computer or printer
(see DCE).

E-1

European digital signal level 1. Similar to T-1 but provides 32
channels (2.048 Mbps) instead of 24 channels (1.544 Mbps).

ESF

Extended Super Frame. A new T-1 framing standard (see D4
framing) that uses 24 T-1 frames, thus allowing individual
identification of the channel and signaling bits.

Fractional T-1 Use of a portion (less than the full 24 channels) of a T-1 line.
Frame Relay

A network protocol that allows for many point-to-point virtual
connections over a single access channel.

HDB3

High Density Bipolar 3, used with E-1, a bipolar coding
method that does not allow more than 3 consecutive zeros.

HDLC

High-Level Data Link Control, layer 2 (link layer) full-duplex
protocol derived from SDLC.

INV. HDLC

A form of zero suppression in which all zeros in the HDLC
packet are changed to ones and all ones are changed to zeros.

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WPIM-T1 LOCAL MANAGEMENT GUIDE

APPENDIX C: WAN TERMS AND ACRONYMS
ISDN

Integrated Services Digital Network. Allows point-to-point
connections at 64 Kbps or 128 Kbps when necessary and disconnects the line when not in use. With this service the user
only pays for the time connected.

JBZS

Jam Bit-Zero Suppression, a form of zero suppression that
places a one in the seventh bit of a timeslot. Reduces the effective throughput to 56 Kbps.

LEX

LAN Extender, a Cisco Systems protocol used to internetwork
a host-based router with a remote switch.

LMP

Link Management Protocol, used in Frame Relay. Allows the
device to gather information about the DLCIs (Data Link Connection Identifiers) See T1.617-D, Q.933-A.

Local Timing

Timing for digital transmission circuit is internally generated
by a source within the equipment. Usually used for short haul
private lines. In this case one CSU must be set for Local (internal) timing and the CSU at the other end of the line must be set
for Loop (recovered) timing to create a master-slave situation.

Loop Timing

Timing for digital transmission circuit is recovered from the
received data, not generated internally by a source within the
equipment. This is the typical situation when using public
lines.

MIM

Media Interface Module, Cabletron Systems products designed
to fit in a Multi Media Access Center (MMAC) hub.

MUX

Multiplexer, an electronic device that allows two or more signals to pass over one communications circuit.

PPP

Point-to-Point Protocol, provides a method for transmitting
datagrams over serial point-to-point links.

PRI

Primary Rate Interface, an ISDN service providing 23 “B”
(Bearer) channels of 64 Kbps and one 64 Kbps “D” (Data)
channel for signaling and control.

PVC

Permanent Virtual Circuit, a virtual circuit that provides the
equivalent of a dedicated private line service.

Q.933-A

Q.933 Annex A, an ITU link management protocol specification used in Frame Relay.

WPIM-T1 LOCAL MANAGEMENT GUIDE

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APPENDIX C: WAN TERMS AND ACRONYMS
SDLC

Synchronous Data Link Control, layer 2 (link layer) protocol
developed by IBM for SNA connectivity. Basis for HDLC.

SNA

Systems Network Architecture, data communication network
architecture developed by IBM in the 1970’s.

T-1

A Bell System term that refers to the physical carrier used to
transmit a digital signal at 1.544 Mbps.

T1.617-D

T1.617 Annex D, an ANSI link management protocol specification used in Frame Relay.

TDM

Time Division Multiplexing, a technique in which separate
data or voice signals are transmitted simultaneously over a single communications medium based on time interleaving.

Timeslot

A standard 64,000 bit/second channel. Synonymous with DS-0
(Digital Signal, level 0).

WAN

Wide Area Network, a network spanning a large geographic
area.

WPIM

WAN Physical Interface Module, Cabletron Systems modules
that provide connectivity/functionality for WAN modules such
as the BRIM-W6.

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