Cabletron Systems WPIM-DI Network Manual

WPIM-DI

Local Management Guide

9031709-01

Only qualified personnel should perform installation
procedures.

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.



Copyright 1998 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America

Order Number: 9031709-01 May 1998

Cabletron Systems

trademarks of Cabletron Systems, Inc.
All other product names mentioned in this manual may be trademarks or registered trademarks of

their respective companies.

is a registered trademark and

CSX400, HSIM-W6, BRIM-W6

and

WPIM

are

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:

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:

party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital

Changes or modifications made to this device which are not expressly approv ed by the

WPIM-DI Local Management Guide i

Printed on Recycled Paper

Notice

INDUSTRY CANADA NOTICE

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 Canadian Department of
Communications.

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.

VCCI NOTICE

This is a Class A product based on the standard of the Voluntary Control Council for Interference by
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective
actions.

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

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
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AGREE TO THE TERMS OF THIS AGREEMENT , PR OMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

Before utilizing this product, carefully read this License Agreement.

ii WPIM-DI Local Management Guide

CABLETRON SOFTWARE PROGRAM LICENSE

Notice

1. LICENSE

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.

2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the

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. You have the right to use only the one (1) copy of the Program provided in this

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CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
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ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME
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252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.

WPIM-DI Local Management Guide iii

Notice

DECLARATION OF CONFORMITY

Application of Council Directive(s):

Manufacturer’s Name:

Manufacturer’ s Address:

European Representative Name:

European Representative Address:

Conformance to Directive(s)/Product Standards:

89/336/EEC
73/23/EEC

Cabletron Systems, Inc.
35 Industrial Way

PO Box 5005
Rochester, NH 03867

Mr. J. Solari
Cabletron Systems Limited

Nexus House, Newbury Business
Park
London Road, Newbury
Berkshire RG13 2PZ, England

EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950

Equipment Type/Environment:

Networking Equipment, for use
in a Commercial or Light
Industrial Environment.

We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged
with this notice conforms to the above directives.

Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari

___________________________________ ___________________________________

Full Name Full Name
Principal Compliance Engineer Managing Director - E.M.E.A.

___________________________________ ___________________________________

Title Title
Rochester, NH, USA Newbury, Berkshire, England

___________________________________ ___________________________________

Location Location

iv WPIM-DI Local Management Guide

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 Using This Manual.......................................................................1-1

1.2 WPIM-DI Features.......................................................................1-2

1.3 Document Conventions...............................................................1-3

1.4 Related Manuals..........................................................................1-3

1.5 Getting Help.................................................................................1-4

CHAPTER 2 LOCAL MANAGEMENT

2.1 The WAN Physical Configuration Screen....................................2-2

2.1.1 WAN Physical Configuration Screen Fields.................... 2-2

2.1.2 WPIM-DI Line Configuration Fields ................................2-3

2.1.2.1 WPIM-DI Timeslot Configuration Table.......... 2-5

2.2 The WAN Interface Configuration Screen...................................2-9

2.2.1 WAN Interface Configuration Screen Fields...................2-9

2.3 WPIM-DI Configuration..............................................................2-11

2.3.1 WPIM-DI Physical Configuration ..................................2-12

2.3.2 WPIM-DI Interface Configuration.................................. 2-14

APPENDIX A WPIM-DI SPECIFICATIONS

A.1 WPIM-DI Specifications...............................................................A-1

A.2 WPIM-DI Interface Cables...........................................................A-2

A.3 Cable Assemblies and Pinouts....................................................A-2

APPENDIX B TYPICAL CONFIGURATIONS

B.1 Telco Timing................................................................................B-1

B.2 Tail Circuit Timing........................................................................B-1

B.3 Internal Timing.............................................................................B-2

APPENDIX C FCC PART 68 - USER’S INFORMATION

APPENDIX D WAN TERMS AND ACRONYMS

WPIM-DI Local Management Guide v

Contents

vi WPIM-DI Local Management Guide

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems WPIM-DI

Guide. The WPIM-DI resides in and provides connectivity/functionality

to Cabletron Systems Wide Area Network (WAN) devices such as the
CSX400.

Before using this manual you must perform the following:

• Install the WPIM-DI in a Wide Area Netw ork host device. Refer to the

appropriate manual (i.e., the
for installation and troubleshooting procedures.

• Set up and access Local Management. Refer to the appropriate

standalone device or module User’s Guide for instructions on setting
up and accessing Local Management.

CSX400 and CSX400-DC User’s Guide

Local Management

)

1.1 USING THIS MANUAL

Read through this guide completely to become familiar with the content
and to gain an understanding of the features and capabilities of the
WPIM-DI. You should have a general working knowledge of the
following data communications networks and their physical layer
components before using the WPIM-DI.

•WAN

• Ethernet and IEEE 802.3
The following briefly summarizes each chapter of the WPIM-DI manual.
Chapter 1,

WPIM-DI features, provides a list of related manuals, and concludes with
instructions for obtaining help from Cabletron Systems Technical
Support.

Chapter 2,
to set up the WPIM-DI.

WPIM-DI Local Management Guide 1-1

Introduction

Local Management

, outlines the contents of this guide, describes

, describes how to use Local Management

Chapter 1:

Introduction

Appendix A,

WPIM-DI Specifications

, provides specifications for the
WPIM-DI and also gives Cabletron Systems part numbers and connector
information for WPIM-DI interface cables.

Appendix B,

Typical Configurations

, presents common configurations

for the WPIM-DI.
Appendix C,

FCC Part 68 - User’s Information

, explains the FCC rules

governing the WPIM-DI.
Appendix D,

WAN Terms and Acronyms

, provides a brief glossary of

the terms used in this book.

1.2 WPIM-DI FEATURES

The WPIM-DI extends the functionality of a Wide Area Network module
to allow remote connectivity using WAN services such as T-1, or
Fractional T-1.

The WPIM-DI 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.

The WPIM-DI also provides a Drop and Insert (DI) interface which
allows for a second WAN module (e.g., WPIM-T1) to utilize any
timeslots that are not used for host data. The WPIM-DI is capable of T1
multiframe alignment.

WAN Protocols

The module in which the WPIM-DI is installed supports the following
WAN protocols (refer to the Release Notes included with the host MIM or
standalone device for a list of current protocols):

• Point-to-Point Protocol (LCP) as defined by RFC 1661

• Point-to-Point Protocol (BNCP) 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
device for a list of all MIBs supported by the WPIM-DI. For information
about how to extract and compile individual MIBs, contact Cabletron
Systems Technical Support (refer to Section 1.5,

Getting Help

).

1-2 WPIM-DI Local Management Guide

Document Conventions

1.3 DOCUMENT CONVENTIONS

The following conventions are used throughout this document:

Note

symbol. Calls the reader’s attention to any item of

NOTE

TIP

information that may be of special importance.

Tip

symbol. Conveys helpful hints concerning procedures or

actions.

!

CAUTION

Caution

damage to the equipment.

symbol. Contains information essential to avoid

Navigate through the WPIM Local Management screens by using the
following keyboard commands:

• SPACE bar to toggle between selections in a field.

• ENTER (RETURN) to implement a selection.

• Arrow keys to move up, down or across within the screen.

1.4 RELATED MANUALS

Refer to the manual included with the host Wide Area Network device
(e.g., the
procedures and other technical data provided in this manual. Refer to the
standalone device 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.

CSX400 and CSX400-DC User’s Guide

) to supplement the

WPIM-DI Local Management Guide 1-3

Chapter 1:

Introduction

1.5 GETTING HELP

For additional support related to this device or document, contact the
Cabletron Systems Global Call Center:

Phone [phone]
Internet mail [e-mail]
FTP ctron.com (134.141.197.25)

Login
Password

BBS [phone]

Modem setting 8N1: 8 data bits, No parity, 1 stop bit

For additional information about Cabletron Systems or its products, visit the
World Wide Web site:
For technical support, select

To send comments or suggestions concerning this document, contact the
Cabletron Systems Technical Writing Department via the following
email address:

Make sure to include the document Part Number in the email message.

[e-mail]

http://www.cabletron.com/

anonymous
your email address

Service and Support

.

Before calling the Cabletron Systems Global Call Center, have the
following information ready:

• Your Cabletron Systems service contract number

• A description of the failure

• A description of any action(s) already taken to resolve the problem

(e.g., changing mode switches, rebooting the unit, etc.)

• The serial and revision numbers of all involved Cabletron Systems

products in the network

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The device history (i.e., have you returned the device before, is this a

recurring problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

1-4 WPIM-DI Local Management Guide

CHAPTER 2

LOCAL MANAGEMENT

This chapter explains how to configure the WPIM-DI through Local
Management. The

Interface Configuration

selections in a host device, when the WPIM-DI is installed into a host
device. The WPIM-DI can be installed directly into a CSX400. Refer to
the appropriate host device technical documentation for instructions about
how to set up and access Local Management.

This chapter contains the following sections:

• The WAN Physical Configuration Screen, Section 2.1

• The WAN Interface Configuration Screen, Section 2.2

• WPIM-DI Configuration, Section 2.3

WAN Physical Configuration

screen appear as Local Management menu

screen and the

WAN

Read Section 2.1 and Section 2.2 to gain an understanding of the
WPIM-DI Local Management screens. Section 2.3 provides instructions
for setting up the WPIM-DI for full or fractional T-1 in a PPP (LEX or
BNCP) environment, or for configuring the WPIM-DI for Frame Relay.

Navigate through the WPIM Local Management screens by

TIP

using the following keyboard commands:
SPACE bar to toggle between selections in a field.
ENTER (RETURN) to implement a selection.
Arrow keys to move up, down or across within the screen.

WPIM-DI 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 Setup Menu
screen, use the arrow ke ys to highlight the
ENTER. The screen shown in Figure 2-1 appears.

CSX400 Local Management Flash Image Version: xx.xx.xx

WAN PHYSICAL CONFIGURATION

WAN Setup

option, then press

WPIM 1
TYPE: WPIM-DI

BRIM #: 1
MODE: PRIMARY
ACTIVE: YES
IFACES: 003-026

WPIM 1 LINE CONFIGURATION
NI/DI Timeslot View: [ Active]

NI/DI Line Coding: [ B8ZS]
NI/DI Frame Type: [ ESF]
NI/DI Tx Clock Source: [Loop Timing]
NI/DI Line Buildout: [ 0 db]
NI/DI Loopback [None]
DI Enabled [Yes]

SAVE

WPIM 2
TYPE: WPIM-SYNC

BRIM #: 2
MODE: PRIMARY
ACTIVE: NO
IFACES: 027

[WPIM 1]

000 000 000 000 000000 000 00001-08

09-16

000 000 000 000 000000 000 000

17-24

000 000 000 000 000000 000 000

WAN INT CONFIG

WPIM 1 Timeslot Configuration

RETURN

Figure 2-1 WAN Physical Configuration Screen

2.1.1 WAN Physical Configuration Screen Fields

1482_01

The following sections describe the WAN Physical Configuration screen
fields and the instructions for setting them. The WAN Physical
Configuration screen allows the user to configure the WPIM or “Physical
Interface.”

Cabletron Systems offers a v ariety of WPIMs. The Physical Configuration
screen example (Figure 2-1) shows what the screen would look like with
the WPIM-DI and the WPIM-SY installed. 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 SPACE bar to select the appropriate
WPIM, then press ENTER. The WAN Physical Configuration screen
automatically displays unique configuration fields for each WPIM as
shown in Figure 2-1.

2-2 WPIM-DI 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.

TYPE

Displays the WPIM type.

BRIM #

Displays the BRIM slot in which the WPIM resides.

MODE

Displays the WPIM mode. This field 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. This field displays YES for active
WPIMs and NO for inactive WPIMs.

IFACES

Displays the interfaces available to each WPIM.

2.1.2 WPIM-DI Line Configuration Fields

The line 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 fields available to
the WPIM-DI. Each Cabletron Systems WPIM has a Local Management
Guide that provides specific line configuration guidelines and examples.

WPIM-DI Local Management Guide 2-3

Chapter 2:

NOTE

NI/DI Timeslot View

Local Management

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.

Displays the status of the Timeslot Configuration table. This field toggles
between Active and New. The Active setting displays current Timeslot
Configuration table settings. The New setting allows you to change
Timeslot Configuration table settings. The default setting is

Active

. The
default setting for the Timeslot Configuration table is all Timeslots not
assigned (

NI/DI Line Coding

000

).

Displays the line coding for the physical T-1 line. This field toggles
between B8ZS and AMI. The default setting is

B8ZS

.

NI/DI Frame Type

Displays the T-1 Frame type. This field toggles between ESF and D4. The
default setting is

NI/DI Tx Clock Source

ESF

.

Displays the T-1 Transmit Clock Source. This field toggles between Loop
Timing (Extracted Line Data) and Local Timing (Internal Clock). The
default setting is

Loop Timing

. If the DI Enabled field is set to

diDataEnable, Local Timing cannot be selected as a choice.

NI/DI Line Buildout

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

0 dB

. This field steps between the following levels:

• 0 db

• -7.5 db

• -15 db

• -22.5 db

2-4 WPIM-DI Local Management Guide

The WAN Physical Configuration Screen

NI/DI Loopback

Displays the loopback for the WPIM-DI. Loopback is a testing procedure
that segments the line and allows the user to isolate faults. This field
toggles between None, Line-Loop, and Payload-Loop. In Line-Loop the
entire T1 is looped back. In Payload-Loop only the 24 timeslots are
looped back. The NI/DI Tx Clock Source must be in Loop Timing mode
to use this option. The default setting is

DI Enabled

None

.

Displays the status of the Drop-and-Insert function of the WPIM-DI. This
field steps between On, Off, and diDataEnable. Choosing On allows
another device (e.g., WPIM-T1) that is connected to the DI interface of
the WPIM-DI to use any timeslots that the WPIM-DI is not using (Drop
and Insert is enabled between the two ports). The data from the host
device passes through the NI port. Choosing Off allows the Network
Interface to be used as a standard T-1 port. Choosing diDataEnable
enables Drop and Insert, and data from the host device will pass through
the DI port. The default setting is On.

When the diDataEnable option is selected in the DI Enabled

NOTE

field, data from the host device passes through the DI port and
not the NI port on the WPIM-DI.

2.1.2.1 WPIM-DI Timeslot Configuration T able

The WPIM Timeslot Configuration table allows you to configure the way
in which the 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.

The WPIM-DI supports Time Division Multiplexing (TDM) allowing
channelization of circuits (Timeslots) within the public network. You can
use Timeslots any way you choose. When using the WPIM-DI, you have
the option of implementing all the available leased Timeslots with the
WPIM-DI, or you may map any of the available Timeslots to another
WAN module through the DI interface.

WPIM-DI Local Management Guide 2-5

Chapter 2: Local Management

For example, if your CSX400 has access to a full T-1 (24 Timeslots), and
you want to communicate with two other sites through the WPIM-DI,
your configuration might look like the sample configuration shown in
Figure 2-2.

SITE #2

SITE #1

16 Timeslots

Telco Cloud

24 Timeslots

SITE #3

8 Timeslots

1482_02

Figure 2-2 Sample Network Configuration #1

Figure 2-3 shows a sample Timeslot configuration for the three sites
shown in Figure 2-2. 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 ho w the service provider
maps out the T-1 Timeslots. Your service provider will tell you which
Timeslots are active.

01-08

09-16

17-24

005

005

006

005

006

005

006

005

006

005

005

005

SITE #1

Figure 2-3 Sample Timeslot Configuration #1

2-6 WPIM-DI Local Management Guide

005

005

006

005

005

006

005

005

006

005

005

006

01-08

09-16

17-24

01-08

09-16

17-24

005

005

000

006

000

000

005

005

000

006

000

000

005

005

000

SITE #2

006

000

000

SITE #3

005

005

000

006

000

000

005

005

000

006

000

000

005

005

000

006

000

000

005

005

005

005

000

000

006

006

000

000

000

000

1482_03

The WAN Physical Configuration Screen

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.

The Interface numbers of Site #1, Site #2 and Site #3 do not

NOTE

have to match. Only the quantity of Timeslots must match (the
service provider assigns the Timeslots).

Mapping Unused Timeslots

In the previous example, the WPIM-DI made use of all 24 timeslots.
None of the timeslots were mapped to another device and the Drop and
Insert function was not used. If, however, you wanted another WAN
device (e.g., a WPIM-T1) at the same site as the WPIM-DI to be able to
communicate with Site #3, your configuration might look like the sample
configuration shown in Figure 2-4.

SITE #2

SITE #1A
WPIM-DI

24 Timeslots
(8 Not Used)

SITE #1B

WPIM-T1

8 Timeslots

Figure 2-4 Sample Network Configuration #2

Telco Cloud

16 Timeslots

SITE #3

8 Timeslots

148202

Figure 2-5 shows a sample timeslot configuration for the network shown
in Figure 2-4. Of the 24 Timeslots, the WPIM-DI at Site #1A uses 16 to
communicate with Site #2 and the remaining 8 are mapped to the
WPIM-T1 at Site #1B. The WPIM-T1 at Site #1B uses these 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.

WPIM-DI Local Management Guide 2-7

Chapter 2: Local Management

01-08

09-16

17-24

01-08

09-16

17-24

005

005

000

000

000

006

005

005

000

000

000

006

SITE #1A

005

005

005

005

000

000

SITE #1B

000

000

000

000

006

006

005

005

000

000

000

006

005

005

000

000

000

006

005

005

000

000

000

006

005

005

000

000

000

006

01-08

09-16

17-24

01-08

09-16

17-24

005

005

000

006

000

000

005

005

000

006

000

000

SITE #2

005

005

005

005

000

000

SITE #3

006

006

000

000

000

000

005

005

000

006

000

000

005

005

000

006

000

000

005

005

000

006

000

000

005

005

000

006

000

000

1482_03

Figure 2-5 Sample Timeslot Configuration #2

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

TIP

When the WPIM-DI Ph ysical Configuration screen is sa ved and
the Drop-and-Insert function is enabled, any timeslots initially
set to 000 in the Timeslot Configuration table change to DI to
reflect that these timeslots are mapped to the DI interface.

In order to map unused timeslots to another device connected
to the DI port of the WPIM-DI, the DI Enable option on the W AN
Physical Configuration screen must be set to On.

For block diagrams of typical supported configurations, see
Appendix B.

2-8 WPIM-DI 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 2-6 appears.

CSX400 Local Management Flash Image Version: xx.xx.xx

WAN INTERFACE CONFIGURATION

Interface Number: [002]
Data Compression: [NO]
Max Xmit Unit: [0]
Line Coding: [NONE]
Active Protocol: [NONE]

SAVE

RETURN

PT# IF# LID STATE
001

001 Enet UP

002
003

004
005
006

007
008

009
010

011
012

013
014
015

016

PT# IF# LID STATE
017

018
019

020
021
022

023
024
025

026
027
028

029
030

031
032

Figure 2-6 WAN Interface Configuration Screen

2.2.1 WAN Interface Configuration Screen Fields

148204

This section describes the WAN Interface Configuration screen fields.

Interface Number

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

Data Compression

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

WPIM-DI Local Management Guide 2-9

Chapter 2: Local Management

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 displays
PPP (Point-to-Point), FR (Frame Relay), or NONE. The default setting is
NONE.

If PPP is selected, the following field appears:

PPP T ype: This field displays BNCP or LEX. The default

setting is BNCP.

If FR is selected, the following field appears:

FR LMP: This field displays the Link Management

Protocol NO LMI, Q.933-A or T1.617-D. The
default setting is T1.617-D.

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

DLCI Address: This field can be set to values from 0-1023. The

values 0-15 and 1008-1022 are reserved Data
Link Connection Identifiers (DLCI) addresses.
The values 16-991 are typically used for virtual
circuits.

Circuit State: Steps between Active, Inacti ve and In valid. The

default setting is Active.

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 activ e
protocol is Frame Relay, Local Management assigns the available WAN
bridge ports from the host platform, one per DLCI.

2-10 WPIM-DI Local Management Guide

WPIM-DI Configuration

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 assigned to that Interface. This is
determined either manually or by the Link Management Protocol (LMP).

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).

2.3 WPIM-DI CONFIGURATION

This section provides step-by-step instructions for configuring the
WPIM-DI to use a full or fractional T-1 circuit in a PPP or Frame Relay
environment. This simplified example assumes the setup shown in
Figure 2-7 using two CSX400s containing a WPIM-DI at Site #1 and a
WPIM-T1 at Site #2. Configurations may vary depending on the hub.

SITE #1

24 Timeslots

Telco Cloud

SITE #2

WPIM-DI Local Management Guide 2-11

24 Timeslots

1482_05

Figure 2-7 Full T-1 Configuration

Chapter 2: Local Management

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

Line Coding B8ZS or AMI
Frame Type ESF or D4
Clock Source Loop Timing or Local Timing

DS0 (Timeslots)

Configuration Information
Supplied by Service Provider

Timeslots being used for each end of
the circuit

2.3.1 WPIM-DI Physical Configuration

Begin the WPIM-DI configuration by accessing the WAN Physical
Configuration screen (Figure 2-1) through Local Management. To access
the WAN Physical Configuration screen from the Setup Menu screen, use
the arrow keys to highlight the WAN Setup 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 SPACE bar to select the WPIM being configured,
then press ENTER.

2. Use the arrow keys to highlight NI/DI Timeslot View. Press the

SPACE bar to select New, then press ENTER. The cursor moves to
Timeslot #1 of the Timeslot Configuration table.

3. Insert an interface number (refer to the 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 NI/DI Line Coding field.

2-12 WPIM-DI Local Management Guide

WPIM-DI Configuration

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.

Any timeslots that are given a value of 000 are either not used
(DI Enabled set to Off) or are mapped to another WAN module
(e.g., WPIM-T1) that is connected to the DI interface (DI
Enabled set to On).

When DI Enabled is set to diDataEnable, the timeslot view
changes to view data from DI instead of NI. Host data passes
through the DI interface and slots that are marked DI are
mapped to the NI interface.

The following four steps are based on information supplied by
the service provider. Consult the service provider f or the correct
settings.

4. Use the arrow keys to highlight NI/DI Line Coding. Press the SPACE
bar to select B8ZS or AMI, then press ENTER.

5. Use the arrow keys to highlight NI/DI Frame Type. Press the SPACE
bar to select ESF or D4, then press ENTER.

6. Use the arrow keys to highlight NI/DI TX Clock Source. Press the
SPACE bar to select Local Timing (no clock source provided by
telephone company) or Loop Timing (clock source provided by
telephone company), then press ENTER.

If you are using a Local clock source, set only one end of the

NOTE

circuit for Local Timing, the other end must be set for Loop
Timing.

7. Use the arrow keys to highlight NI/DI Line Buildout (LBO). Press the
SPACE bar to select 0 db unless the service provider recommends
another setting, then press ENTER.

8. Use the arrow keys to highlight NI/DI Loopback. Press the SPACE
bar to select None, then press ENTER.

WPIM-DI Local Management Guide 2-13

Chapter 2: Local Management

9. Use the arrow keys to highlight DI Enabled. Press the SPACE bar to
select On (Drop and Insert function enabled), or Off (Drop and Insert
function disabled), or diDataEnable (Drop and Insert is enabled and
the data that comes to the host goes to the DI port), then press ENTER.

10. 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.

11. 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-DI Interface Configuration

This screen is accessed through the WAN Physical Configuration screen.
Refer to Figure 2-6 and 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.

2. Unless the user sets the Max Xmit Unit, the WPIM-DI automatically
sets the Max Xmit Unit to the default after the active protocol (PPP or
FR) is selected.

3. Use the arrow keys to highlight Line Coding.
a. If the WPIM-DI is being configured for Frame Relay or if the

NI/DI Line Coding is B8ZS on the previous screen, press the
SPACE bar to select NONE, then press ENTER.

b. If the WPIM-DI is being configured for PPP and the NI/DI Line

Coding is AMI on the previous screen, press the SPACE bar to
select INV-HDLC, then press ENTER.

2-14 WPIM-DI Local Management Guide

WPIM-DI Configuration

4. Use the arrow keys to highlight Active Protocol. Press the SPACE bar

to select PPP (for PPP or LEX) or FR (for Frame Relay), then press
ENTER.

a. If you selected PPP in step 4, use the arrow ke ys to highlight PPP

T ype. Press the SPACE bar to select BNCP (for PPP) or LEX,
then press ENTER.

b. If you selected FR in step 4, use the arrow keys to highlight FR

LMP. Press the SPACE bar to select T1.617-D, 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.

Upon saving this screen, the interface just configured is

NOTE

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-DI Local Management Guide 2-15

Chapter 2: Local Management

2-16 WPIM-DI Local Management Guide

APPENDIX A

WPIM-DI SPECIFICATIONS

This appendix provides operating specifications for the WPIM-DI and
also provides the Cabletron Systems part number and connector
information for the WPIM-DI Interface Cables.

A.1 WPIM-DI SPECIFICATIONS

This section describes the environmental specifications and safety and
approval requirements for the WPIM-DI. 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)
Storage Temperature: -30° to +73°C (-22° to 164°F)
Relative Humidity: 15% to 95% (non-condensing)

Safety

This unit meets the safety requirements of UL1950, CSA C22.2 No. 950,
EN60950, IEC 950, and 73/23/EEC.

EMI

This unit meets the EMI requirements of FCC Part 15 Class A, VCCI
Class I, EN 55022 Class A, and 89/336/EEC.

EMC

This unit meets the EMC requirements of EN 50082-1 and 89/336/EEC.

TELECOM

The WPIM-DI meets FCC Part 68 (refer to Appendix C) and CS-03.

WPIM-DI Local Management Guide A-1

Appendix A: WPIM-DI Specifications

A.2 WPIM-DI INTERFACE CABLES

Table A-1 lists Cabletron Systems part numbers for the interface cables
for the WPIM-DI. A standard 20-foot cable is available or the customer
may specify the length of cable when ordering.

Table A-1 Cabletron WPIM-DI Interface Cable Part Numbers

Interface Cable Cabletron Part Number

T1 Line Interface Cable 9372094-20
T1 Line Interface Cable 9372094-L

a. Standard 20-foot T1 Line Interface Cable.
b. (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

b

A.3 CABLE ASSEMBLIES AND PINOUTS

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

Table A-2 WPIM-DI Connector Information

Connector 1 (Network) RJ48
Connector 2 (Drop and Insert) RJ48

A-2 WPIM-DI Local Management Guide

Cable Assemblies and Pinouts

Table A-3 WPIM-DI Network Interface RJ48 Connector Pin Assignments

Pin Signal

1 Receive Ring
2 Receive Tip
3 AC Coupled Ground
4 Transmit Ring
5 Transmit Tip
6 AC Coupled Ground
7 AC Coupled Ground
8 AC Coupled Ground

Table A-4 WPIM-DI Drop and Insert Interface

RJ48 Connector Pin Assignments

Pin Signal

1 Transmit Ring
2 Transmit Tip
3 AC Coupled Ground
4 Receive Ring
5 Receive Tip
6 AC Coupled Ground
7 AC Coupled Ground
8 AC Coupled Ground

WPIM-DI Local Management Guide A-3

Appendix A: WPIM-DI Specifications

A-4 WPIM-DI Local Management Guide

APPENDIX B

TYPICAL CONFIGURATIONS

B.1 T ELCO TIMING

The following configuration is a typical setup. The system clock source is
supplied by the Telco between the two sites. The DI Enabled feature on
the WPIM-DI is configured as On for both WPIM-DIs, and data from the
host device passes through the NI port in both WPIM-DIs.

WPIM-DI

DINI

Clock:
Slave

Voice

PBX

Clock:
Slave

config1

PBX

Clock:
Slave

Voice

WPIM-DI

NIDI

Clock:
Slave

Voice/Data

Voice/Data

Telco Cloud

Clock:
Master

Figure B-1 Telco Timing Configuration

B.2 TAIL CIRCUIT TIMING

The Tail Circuit has the PBX as its timing source in site #1. Data from the
host device passes through the DI port in site #1, because the DI Enabled
option is set to diDataEnable. Data from the host device passes through
the NI port in site #2, because DI Enabled is configured On for the
WPIM-DI.

Site #1

Voice

PBX

Clock:
Master

WPIM-DI

Clock:
Slave

Figure B-2 Tail Circuit Timing Configuration

WPIM-DI Local Management Guide B-1

WPIM-DI

DINI

Voice/Data

Telco Cloud

Clock:
Slave

Voice/Data

DINI

Clock:
Slave

Site #2

Voice

PBX

Clock:
Slave

config2

Appendix B: Typical Configurations

B.3 INTERNAL TIMING

For the internal timing configuration, the clock source is the WPIM-DI.
Data from the host device passes through the NI port in both sites, as the
DI Enabled option is set to On.

PBX

Clock:
Slave

Voice

WPIM-DI

NIDI

Voice/Data

Telco Cloud

Clock:
Master

Clock:
Slave

Voice/Data

Figure B-3 Internal Timing Configuration

WPIM-DI

DINI

Clock:
Slave

Voice

PBX

Clock:
Slave

config3

B-2 WPIM-DI Local Management Guide

APPENDIX C

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 the unit, inform the local telephone company of the

following information:

Port ID REN/SOC FIC USOC

04DU9-BN
04DU9-DN

WPIM-DI 6.0N

04DU9-1KN
04DU9-1SN
04DU9-1ZN

RJ48C

3. If the unit appears to be malfunctioning, disconnect it from the

telephone lines until you learn if the equipment or the telephone line is
the source of the trouble. If the equipment needs repair, do not
reconnect the equipment 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.

6. If the telephone company alters their equipment in a manner that will

affect use of this device, they must give the user advance warning so
as to give the opportunity for uninterrupted service. The user will be
advised of the right to file a complaint with the FCC.

WPIM-DI Local Management Guide C-1

Appendix C: FCC Part 68 - User’s Information

7. The attached affidavit must be completed by the installer.

8. In the event of equipment malfunction, all repairs should be performed
by Cabletron Systems or an authorized agent. It is the responsibility of
the users requiring service to report the need for service to Cabletron
Systems or to an authorized Cabletron Systems agent.

Service can be obtained at Cabletron Systems Technical Support (refer
to Chapter 1, Getting Help).

C-2 WPIM-DI Local Management Guide

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

equipment to be connected to 1.544 Mbps
and/or

Subrate digital services. The terminal
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.

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
accordance with

above.

I agree to provide

(Telco’s Name)

with proper documentation

to demonstrate compliance with the information as provided in the
proceeding paragraph, if so requested.

(Signature)

Subscribed and sworn to me this

day of , 19 .

(Title)
(Date)

My commission expires:

(Notary Public)

APPENDIX D

WAN TERMS AND ACRONYMS

This appendix provides definitions for WAN terms and acronyms.

AMI

ANSI

Bearer (B)
Channel

Bipolar
Violation

B8ZS

BRI

Alternate Mark Inv ersion, 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.

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

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

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

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.

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-DI Local Management Guide D-1

Appendix D: WAN Terms and Acronyms

DCE

Data (D)
Channel

D4

DI

DLCI

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

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.

Drop and Insert, a function provided on the Cabletron
Systems WPIM-DI which allows the user to map
timeslots that are not being used to another WAN device.

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

DSU

DS-0

DTE

E-1

ESF

Fractional T -1

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

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

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

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

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.

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.

D-2 WPIM-DI Local Management Guide

HDB3

HDB3

HDLC

INV. HDLC

ISDN

JBZS

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

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

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

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.

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

LMP

Local Timing

Loop Timing

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

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

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.

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. Also may be referred to as clock slave
timing.

MIM

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

WPIM-DI Local Management Guide D-3

Appendix D: WAN Terms and Acronyms

MUX

NI
PPP

PRI

PVC

Q.933-A

SDLC

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

Network Interface.
Point-to-Point Protocol, provides a method for

transmitting datagrams over serial point-to-point links.
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.

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

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

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

SNA

T-1

T1.617-D

TDM

Timeslot

WAN

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

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

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

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

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

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.

D-4 WPIM-DI Local Management Guide