Paradyne HotWire 7924 Manual de usuario

HOTWIRE

MODEL 7924 STANDALONE

T1 HDSL TERMINATION UNIT

USER’S GUIDE

Document No. 7924-A2-GB20-30

October 1997

Printed on recycled paper

A 7924-A2-GB20-30

October 1997

Printed in U.S.A.

Notice

This publication is protected by federal copyright law. No part of this publication may be copied or distributed,

transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form

or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the

express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo,

Florida 33779-2826.

Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically

disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation

reserves the right to revise this publication and to make changes from time to time in the contents hereof without

obligation of Paradyne Corporation to notify any person of such revision or changes.

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

release to this manual.

Trademarks

All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered

service marks of their respective owners.

Warranty, Sales, and Service Information

Contact your sales or service representative directly for any help needed. For additional information concerning

warranty, service, repair, spare parts, installation, documentation, or training, use one of the following methods:

Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com

Via Telephone: Call our automated call system to receive current information via fax or to speak with a

company representative.

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

— International, call 727-530-2340

Important Information

7924-A2-GB20-30 October 1997

Important Safety Instructions

1. Read and follow all warning notices and instructions marked on the product or included in the manual.

2. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the

power cord.

3. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous

high voltage points or other risks. Refer all servicing to qualified service personnel.

4. General purpose cables are provided with this product. Special cables, which may be required by the regulatory

inspection authority for the installation site, are the responsibility of the customer.

5. When installed in the final configuration, the product must comply with the applicable Safety Standards and

regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory

agencies and inspection authorities to ensure compliance.

6. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If

products installed in separate buildings are interconnected, the voltage potential may cause a hazardous

condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if

necessary, implement corrective action prior to interconnecting the products.

7. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:

—Never install telephone wiring during a lightning storm.

—Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

—Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the

network interface.

—Use caution when installing or modifying telephone lines.

—Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of

electric shock from lightning.

—Do not use the telephone to report a gas leak in the vicinity of the leak.

Important Information

C 7924-A2-GB20-30

October 1997

EMI Warnings

!WARNING:

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

pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against

harmful interference when the equipment is operated in a commercial environment. This equipment

generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance

with the instruction manual, may cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference in which case the user will be

required to correct the interference at his own expense.

The authority to operate this equipment is conditioned by the requirements that no modifications will be

made to the equipment unless the changes or modifications are expressly approved by Paradyne

Corporation.

!WARNING:

To Users of Digital Apparatus in Canada:

This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment

regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur le matérial

brouilleur du Canada.

7924-A2-GB20-30 October 1997

Contents

About This Guide

Document Purpose and Intended Audience v. . . . . . . . . . . . . . . . . . . . . . . . .

Document Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product-Related Documents vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1About HotWire Model 7924 Termination Units

HotWire 7924-A1 Models and Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Configurations 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

User Interface Types 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2Installing the Unit

Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Checklist for HotWire Model 7924-A1 2-1. . . . . . . . . . . . . . . . . . . . . .

Connecting to the Network 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting Power to the Unit 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3Using Terminal and Switchpack Modes

Choosing an Interface Mode 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting to a System Terminal 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Switching Between Terminal and Switchpack Modes 3-2. . . . . . . . . . . . . . . . .

4Customizing DSX-1-Compatible Units

Accessing Configuration Options 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Making Changes from the Terminal Interface 4-2. . . . . . . . . . . . . . . . . . . . . . .

Making Changes in Switchpack Mode 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displaying Switchpack Definitions 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displaying Line Build-Out Definitions 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

ii 7924-A2-GB20-30

October 1997

5Customizing V.35-Compatible Units

Accessing Configuration Options 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Making Changes from the Terminal Interface 5-2. . . . . . . . . . . . . . . . . . . . . . .

Making Changes in Switchpack Mode 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displaying Switchpack Definitions 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6Monitoring the Unit

What to Monitor 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Board Status 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Statistics 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Unit Information 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Panel LEDs 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1-Compatible Unit 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V.35-Compatible Unit 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7Testing

Detecting a Problem 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Understanding Loopback Tests 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Loopbacks 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Starting and Stopping Loopbacks 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resetting the Unit 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AWorksheets

Overview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1-to-DSX-1 Configuration A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1-to-V.35 Configuration A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unframed Operation A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time Slot (DS0) Assignments A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1-Compatible Units Configuration Worksheet A-5. . . . . . . . . . . . . . . . . .

V.35-Compatible Units Configuration Worksheet A-5. . . . . . . . . . . . . . . . . . . .

Contents

iii

7924-A2-GB20-30 October 1997

BCable Pin Assignments

Terminal Connection Cable Pin Assignments B-1. . . . . . . . . . . . . . . . . . . . . . .

HDSL Loop Connection Cable Pin Assignments B-2. . . . . . . . . . . . . . . . . . . . .

T1 Network Connection Cable Pin Assignments B-3. . . . . . . . . . . . . . . . . . . . .

V.35 Connection Cable Pin Assignments B-4. . . . . . . . . . . . . . . . . . . . . . . . . . .

CSwitchpacks and Jumpers

DSX-1-Compatible Units C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V.35-Compatible Units C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary

Index

7924-A2-GB20-30 October 1997

About This Guide

Document Purpose and Intended Audience

This guide contains information needed to set up, configure, and operate HotWire

Model 7924-A1 T1 HDSL termination units. It is designed for central office

technicians or network engineers who have an understanding of the deployment

of digital subscriber line systems in a telephone company or private network

environment.

HotWire 7924 may be ordered either as a standalone unit (7924-A1-xxx) or as a

nest-mounted card (7924-B1-xxx) that fits in a HotWire 7900 nest. This guide

describes the installation and maintenance procedures for the standalone

version, Model 7924-A1-xxx.

Document Summary

Section Description

Chapter 1

About HotWire Model 7924 Termination Units

. Describes the

features of each version of the Model 7924, and typical

configurations.

Chapter 2

Installing the Unit

. Describes how to install the unit and

make connections.

Chapter 3

Using Terminal and Switchpack Modes.

Provides

instructions for connecting a VT100-compatible terminal

user interface. Also describes how to make manual

configuration changes directly on the board hardware.

Chapter 4

Customizing DSX-1-Compatible Units

. Provides instructions

for modifying configuration options by using the terminal

interface or DIP switches and jumpers on the board.

Chapter 5

Customizing V.35-Compatible Units

. Provides instructions

for modifying configuration options by using the terminal

interface or DIP switches and jumpers on the board.

About This Guide

vi 7924-A2-GB20-30

October 1997

Section Description

Chapter 6

Monitoring the Unit.

Describes how to monitor unit status,

LEDs, and network statistics. Also describes how to monitor

the status of the unit on the opposite side of the HDSL

connection.

Chapter 7

Testing

. Provides information about available loopback

tests.

Appendix A

Worksheets.

Contains all the configuration options, default

settings, and possible settings to use for planning.

Appendix B

Cable Pin Assignments.

Contains connector and interface

details.

Appendix C

Switchpacks and Jumpers.

Defines the switchpack and

jumper positions on the board hardware. Includes board

layout diagrams.

Glossary Defines acronyms and terms used in this document.

Index Lists key terms, acronyms, concepts, and sections in

alphabetical order.

Product-Related Documents

Document Number Document Title

7900-A2-GB20

HotWire Model 7900 Basic Maintenance Processor

User’s Guide

7900-A2-GB21

HotWire Model 7900 SNMP Maintenance Processor

User’s Guide

7900-A2-GN10

HotWire Model 7900 10-Slot Standalone Shelf

Installation Instructions

7900-A2-GN20

HotWire Model 7900 Nest and Options Installation

Guide

7920-A2-GB20

HotWire Models 7924 and 7925 T1 and E1 HDSL

Nest Card Termination Units User’s Guide

7925-A2-GB20

HotWire Model 7925 Standalone E1 HDSL

Termination Unit User’s Guide

To order additional product documentation, refer to

Warranty, Sales, and Service

Information

on page A at the beginning of this User’s Guide.

1-1

7924-A2-GB20-30 October 1997

About HotWire Model 7924

Termination Units 1

HotWire 7924-A1 Models and Features

Products in the HotWire 7924 family provide “last mile/last kilometer” transport of

T1-compatible circuits between customer facilities and central site equipment

over 2- or 4-wire copper lines. The units can be used over distances substantially

exceeding traditional T1 spans and Canadian Standards Association (CSA) loop

standards.

HotWire 7924 standard features include:

V.35 or DSX-1 interface

Full support for T1 using two twisted-copper pairs

Full support for fractional T1 using one or two twisted-copper pairs

Automatic detection and compensation for inverted pairs and swapped loops,

which simplifies installation

Tolerance of bridged taps

Local and remote alarm surveillance

Local and remote T1 network and HDSL loop performance monitoring

HotWire 7924 may be ordered either as a standalone unit (7924-A1-xxx) or as a

nest-mounted card (7924-B1-xxx) that fits in a HotWire 7900 nest. This guide

describes the installation and maintenance procedures for the standalone

version, Model 7924-A1-xxx.

Up to ten standalone units may be installed in an optional HotWire 7900 10-Slot

Standalone Shelf. This is a convenient way to stack standalone units, using a

single power source.

To order additional product documentation, refer to

Warranty, Sales, and Service

Information

on page A at the beginning of this User’s Guide.

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