Paradyne Hotwire 8784 User Manual

Hotwire

®

8784 TDM SDSL

Termination Unit

with DSX-1 Interface

User’s Guide

Document No. 8784-A2-GB20-30

February 2001

Copyright © 2001 Paradyne Corporation.
All rights reserved.
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, tr ansc ribed, store d in a re trie v al syst em, or tr ans lated into a n y huma n or com puter l anguag e in an y form or
by any means, electronic, mechanical, magne tic, manual or otherwise, or disclosed to third parties without the express
written permission of Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773.

Paradyne Cor poration 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.

Warranty, Sales, Service, and Training Information

Contact your local sale s representativ e, se rvice representativ e, or distrib utor directly f or any hel p needed. F or additional
information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or
Paradyne worldwide office locations, use one of the following methods:

Internet:



at

Telephone:



representative.

— Within the U.S.A., call 1-800-870-2221
— Outside the U.S.A., call 1-727-530-2340

Visit the Paradyne World Wide Web s i te at

www.paradyne.com/warranty

Call our automated system to receive current information by fax or to speak with a company

www.paradyne.com

.)

. (Be sure to register your warranty

Document Feedback

We welcome your comments and suggestions about this document. Please mail them to Technical Publications,
Paradyne Cor poration, 8545 126th Ave. N., Largo, FL 33773, or send e-mail to
number and title of this document in your correspondence. Please include your name and phone number if you are
willing to provide additional clarification.

[e-mail]

. Include the

Trademarks

ACCULINK, COMSPHERE, FrameSaver, Hotwire, MVL, NextEDGE, OpenLane, and Performance Wizard are
registered trademarks of Paradyne Corporation. ReachDSL and TruePut are trademarks of Paradyne Corporation. All
other products and s ervices m en tion ed here in are the trademarks, service marks, registere d trademarks, or registered
service marks of their respective owners.

February 2001 8784-A2-GB20-30

A

!

Important Safety Instructions

1. Read and fo llow all warning notices and instr u ctions marked on the product or included in the manual.

2. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to
protect it from overheating, these slots and openings must not be blocked or covered.

3. Do not allow an ything to rest on th e pow er cord and d o not locat e the produc t where pe rsons will walk on the pow er
cord.

4. Do not attempt to install or service this product yourself, as opening or removing covers may expose you to
dangerous high voltage points or other risks. Refer all installation and servicing to qualified service personnel.

5. 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.

6. 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 necessar y, consult with the appropriate regulatory
agencies and inspection authorities to ensure compliance.

7. A rare phenomenon ca n create a v oltag e potent ial betwee n the earth groun ds of two or more b uil dings . If pro ducts
installed in separate buildings are
Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if necessary,
implement corrective action prior to interconnecting the products.

8. 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.
— Neve r tou ch uninsulated telephone wires or terminals u nle ss th e te lep hone line has been disconnected at t he

network interface.

— Use caution when installing or modifying telephone lines.
— Av oid usi ng a tele pho ne (othe r than a co rdless type) du ring an el ectrical s torm. There ma y be a remo te risk of

electric shock from lightning.

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

interconnected

, the voltage potential may cause a hazardous condition.

8784-A2-GB20-30 February 2001

B

EMI Notices

!

UNITED STATES – EMI NOTICE:

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, ma y cause harmful interf erence to radio comm unications. Ope ration 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.

!

CANADA – EMI NOTICE:

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.

February 2001 8784-A2-GB20-30

C

Contents

About This Guide



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



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



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

1 About the Hotwire 8784 Termination Unit



TDM SDSL Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1



Hotwire 8784 Termination Unit Features . . . . . . . . . . . . . . . . . . . . . . . 1-2



Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3



SNMP Management Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Management Information Base (MIB) Support . . . . . . . . . . . . . . . 1-4

SNMP Trap Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Using the Asynchronous Terminal Interface



User Interface Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1



Management Serial Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1



Logging In to the Hotwire DSLAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2



Initiating an ATI Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2



Menu Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4



Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5



Navigating the Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Keyboard Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Switching Between Screen Work Areas . . . . . . . . . . . . . . . . . . . . 2-8



Ending an ATI Session. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9



Exiting From the DSLAM Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

8784-A2-GB20-30 February 2001

i

Contents

3 Initial Startup and Configuration



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



Entering Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2



Configuring the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Current and Default Factory Configurations . . . . . . . . . . . . . . . . . 3-4

Configuration Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5



Saving Configuration Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7



Downloading Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8



AutoRate Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Disabling AutoRate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Resetting AutoRate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11



Restoring Access to the User Interface . . . . . . . . . . . . . . . . . . . . . . . . 3-11



Resetting the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

4 Monitoring the Unit



What to Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1



Viewing System and Test Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

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

Self-Test Results Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Test Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5



Performance Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Viewing Network Error Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Viewing Network Performance Statistics. . . . . . . . . . . . . . . . . . . . 4-8

Viewing Current Network Performance . . . . . . . . . . . . . . . . . . . . . 4-10

Viewing DSX-1 Performance Statistics . . . . . . . . . . . . . . . . . . . . . 4-11



Viewing LED Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13



Front Panel LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

February 2001 8784-A2-GB20-30

ii

5Testing



Accessing the Test Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1



Running Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Repeater Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

DTE Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Remote Send Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Send and Monitor 511 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7



Device Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8



Ending an Active Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9



Telco-Initiated Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Telco-Initiated Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Telco-Initiated Payload Loopback . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Telco-Initiated Remote Line Loopback . . . . . . . . . . . . . . . . . . . . . 5-11

Contents

6 Messages and Troubleshooting



Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1



Configuring SNMP Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2



Device Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3



Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

7 Security



Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1



ATI Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1



Creating a Login. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2



Deleting a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3



Controlling SNMP Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Assigning SNMP Community Names and Access Types . . . . . . . 7-4

Limiting SNMP Access through the IP Addresses of

the Managers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

8 IP Addressing



Selecting an IP Addressing Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1



IP Addressing Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8784-A2-GB20-30 February 2001

Configurations Not Running IP Conservative Software. . . . . . . . . 8-1

All Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

iii

Contents

A Configuration Options



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



Network Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2



DSX-1 Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4



Copy Ports Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7



System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8



Management and Communication Menu . . . . . . . . . . . . . . . . . . . . . . . A-10

Telnet Session Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

General SNMP Management Options . . . . . . . . . . . . . . . . . . . . . . A-12

SNMP NMS Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14

SNMP Trap Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-16

B Standards Compliance for SNMP Traps



SNMP Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

warmStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

authenticationFailure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

linkUp and linkDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2



Enterprise-Specific Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

C Connector Pin Assignments



Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1



Front Panel 50-pin DTE Connector Pinouts. . . . . . . . . . . . . . . . . . . . . C-1

D Technical Specifications

Glossary

Index

February 2001 8784-A2-GB20-30

iv

About This Guide

Document Purpose and Intended Audience

This guide contains information needed to set up, configure, and operate the
2-port Hotwire 8784 Time Division Multiplexer Symmetric Digital Subscriber Line
(TDM SDSL) Termination Unit, and is intended for installers and operators.

Document Summary

Section Description

Chapter 1,

8784 Termination Unit

Chapter 2,

Asynchronous Terminal Interface

Chapter 3,

Configuration

Chapter 4,

Chapter 5,

Chapter 6,

Troubleshooting

Chapter 7,

Chapter 8,

Appendix A,

Options

Appendix B,

Compliance for SNMP Traps

About the Hotwire

Using the

Initial Startup and

Monitoring the Unit

Testing

Messages and

Security

IP Addressing

Configuration

Standards

Describes the Hotwire 8784 Termination Unit’s
features and capabilities.

Provides instructions f o r accessi ng the user int erf a ce
and navigating the screens.

Provides procedures for configuring the unit.

Describes using the LEDs, status, and network
statistics to monitor the unit.

Provides information about available tests and test
setup.

Provides information on SNMP traps, device
messages, and troubleshooting.

Presents procedures for creating a login, setting the
effective access levels, and controlling SNMP
access.

Provides in formation and examples regarding IP
addresses.

Contains all configuration options, default settings,
and possible settings.

Contains SNMP trap compliance information.

Appendix C,

Assignments

8784-A2-GB20-30 February 2001

Connector Pin

Lists the pin assignments for the front panel DTE
connector.

v

About This Guide

Section Description

Appendix D,

Specifications

Glossary
Index

Technical

Product-Related Documents

Document Number Document Title

7970-A2-GB20

8000-A2-GB22

8000-A2-GB29

8600-A2-GN20

Contains physical and regulatory specifications,
network and port interfaces, power consumption
values, and accessory part numbers.

Defines acronyms and terms used in this document.
Lists key terms , ac ronyms, concepts, and sections in

alphabetical order.

Hotwire TDM SDSL Standalone Termination Units,
Models 7974, 7975, 7976, 7984, 7985, and 7986,
User’s Guide

Hotwire Management Communications Controller (MCC)
Card, IP Conservative, User’s Guide

Hotwire Management Communications Controller (MCC)
Card User’s Guide

Hotwire 8600 Digital Subscriber Line Access Multiplexer
(DSLAM) Installation Guide

8610-A2-GN10
8620-A2-GN20
8784-A2-GZ40

Hotwire 8610 DSLAM Installation Instructions
Hotwire 8620 GranDSLAM Installation Guide
Hotwire 8784 TDM SDSL Ter m ina tio n Unit,

with D SX -1 Interface, Installation Instruc tions

8800-A2-GN21

Hotwire 8800 Digital Subscriber Line Access Multiplexer
(DSLAM) Installation Guide

8810-A2-GN11
8820-A2-GN20

Hotwire 8810 DSLAM Installation Instructions
Hotwire 8820 GranDSLAM Installation Guide

Contact your sales or service representative to order additional product
documentation.

Paradyne documents are also available on the World Wide Web at

www.paradyne.com

. Select

Library → Technical Manuals.

February 2001 8784-A2-GB20-30

vi

About the Hotwire 8784
Termination Unit

TDM SDSL Overview

Hotwire Time Division Multiplexer Symmetric Digital Subscriber Line (TDM
SDSL) products maximize customer service areas by varying the DSL line rate.
This ensures symmetric DSL connectivity over a wide range of telephone line
distances and transmission line qualities.

TDM SDSL termination units can transport data at full (1.544 Mbps) or fractional
payload rates over a 4-wire, full-duplex circuit over varying distances based on the
conditions of the 4-wire loop. Examples include support for router, multiplexer and
PBX connections on 24 gauge (.5 mm) cable up to 21,000 feet (6.4 km).

1

The termination unit is equipped with an automatic configuration capability that
reduces the installation process to a simple plug-and-play procedure. Simply
connect the unit to the line and it automatically configures itself for the maximum
data rate supported by the local loop. The unit can also be configured for fixed line
speeds to achieve maximum distances.

8784-A2-GB20-30 February 2001

1-1

1. About th e Hotwire 8784 Termination Unit

Hotwire 8784 Termination Unit Features

The 2-port Hotwire 8784 TDM SDSL Termination Unit is a circuit board mounted in
a Hotwire 8600 or 8800 Series Digital Subscriber Line Access Multiplexer
(DSLAM) and used to transport signals at high speeds over a twisted-pair
connection.

The Hotwire 8784 TDM SDSL Termination Unit offers these standard features:



AutoRate Capability .

rate upon connection.



Embedded Operations Channel (EOC).

SNMP or Telnet session capability over the SDSL network.



Asynchronous Terminal Interface (ATI).

VT100-compatible terminal interface for configuring and managing the unit
locally or remotely by Telnet session.



Local Management.

Communications Card (MCC) with a:
— Terminal or PC via the Management Serial port of the DSLAM.

Provides automatic configuration of line speed and data

Provides local management using the Management

Provides remote management via

Provides a menu-driven

— Network Management System (NMS) via the Management MCC port of

the DSLAM.

— NMS connection through the 10BaseT port.



Remote Management.

Provides remote management:

— Out-of-band, using an external modem through the Management Serial

port of the DSLAM.

— Telnet over the EOC.
— Using SNMP or Telnet through the 10BaseT port or the Internal

Management Channel (IMC).



Alarm Indication.



Diagnostics.

Activates front panel LEDs.

Provides the capability to diagnose device and network
problems and perform tests, including digital loopbacks, pattern tests, and
self-test.



Device and Test Monitoring.

Provides the capability of tracking and
evaluating the unit’s operation, including health and status, and error-rate
monitoring.

February 2001 8784-A2-GB20-30

1-2

Network Configuration

Figure 1-1, Sample CO-to-CP Configuration, shows a T1 network application

using a Hotwire 8784 TDM SDSL Termination Unit for access concentration in a
central office (CO). A frame relay switch and a router are connected to partner
units through the termination unit, supporting a T1 host or router and frame relay
encapsulated or unframed data.

Frame

Relay

Switch

Router

DSX-1

DSX-1

DSX-1

CO Site

1. About the Hotwire 8784 Termination Unit

Customer Premises (CP)

1.544 Mb

DSX-1

7984

DSX-1

7984

EIA-530

7985

T1 Host
(Frame Relay
Encapsulated

Data)

Router
(Frame Relay
Encapsulated

Data)

Router

8784 T ermination Unit
in 8600 Series DSLAM

Figure 1-1. Sample CO-to-CP Configuration

Figure 1-2, Sample Campus Configuration, shows termination units used to

distribute T1 lines over a campus.

G.703,
DSX-1,
or V.35

Multiple

DSL Lines

Building B Building A

Routers

DSX-1

T3

Multiplexer

99-16489

Figure 1-2. Sample Ca mp u s Configuration

99-16414

8784-A2-GB20-30 February 2001

1-3

1. About th e Hotwire 8784 Termination Unit

SNMP Management Capabilities

The Hotwire 8784 Termination Unit supports SNMP Version 1, and can be
managed by any industry-standard SNMP manager and accessed using SNMP
by external SNMP managers.

Management Information Base (MIB) Support

For a detailed description of supported MIBs, visit Paradyne’s Web site at

www.paradyne.com



MIB II (RFC 1213 and RFC 1573)

network management protocol in TCP/IP internets and provides general
information about the unit. MIB II is backward-compatible with MIB I.



DS1/E1 MIB (RFC 1406)

interface and supports the features found on the DSX-1 Performance Statistics
screen.



Paradyne Enterprise MIB

tests.

. The following MIBs are supported:

– Defines the general objects for use with a

– Reports the performance status of the DSX-1

– Supports configuration, status, statistics, and

SNMP Trap Support

Router

DSX-1

Select Clear to reset a field to a null value.

The Hotwire 8784 Termination Unit supports traps as defined in RFC 1215.

Operation, Maintenance
and Provisioning Center

123

4

DSL PORT
LINK-UP

123

4

DSL PORT
LINK-UP

123

4

DSL PORT
LINK-UP

DC PWR

A

B

IN

OUT SERIAL

3

4

1

2

3

4

3

4

3

MCC 1

2

Ethernet
Interface

Network

3

2

8715

SDSL

1

Ethernet

LAN

SNMP NMS

Data

01-16114a-03

7984

TDM SDSL

EOC

8784

OK

Alrm

Test

SYSTEM

G.703 ALRM

AC

OK

Alrm

Test12

T5A

SYSTEM

G.703 ALRM

250V

OK

Alrm

Test12

RTN48V

SYSTEM

G.703 ALRM

AAB B

DC FUSES

FAN

T4A, MIN. 48V

5

AC

46

.

3

.

2

INPUT

ALM

.

1

.

STACK

A

B

48VDC CLASS 2 OR

POSITION

LIMITED PWR SOURCE

8600 Series

DSLAM

February 2001 8784-A2-GB20-30

1-4

Using the Asynchronous
Terminal Interface

User Interface Access

You can communicate with the asynchronous terminal interface (ATI) using one of
the following methods:



Direct connection through the Management Serial port of the DSLAM (locally
or via an external modem).



Telnet session using a Network Management System (NMS) connected to a
LAN/WAN port on the DSLAM.



Telnet session through the Embedded Operations Channel (EOC).

2

NOTE:

Only one ATI session can be active at a time, and another user’s session
cannot be forced to end. To automatically log out a user due to inactivity,
enable the Inactivity Timeout option (see Table A-5, Telnet Session Options, in
Appendix A,

Security can limit ATI access several ways. To set up security or a login ID, refer to

Chapter 7,

Configuration Options

Security.

Management Serial Port Settings

Ensure that the device you connect communicates using these settings:



Data rate set to 9.6 kbps.



Character length set to 8.



Parity set to None.



Stop Bits set to 1.

Refer to the installation document for your DSLAM.

.

8784-A2-GB20-30 February 2001

2-1

2. Using the Asynchronous Terminal Interface

Logging In to the Hotwire DSLAM

You can log in to the Hotwire DSLAM system using either a local
VT100-compatible terminal or a remote Telnet connection.

After you enter your user ID and password, the system displays the Hotwire
Chassis Main Menu. See your Management Communications Controller (MCC)
documentation for information about selecting the unit from the MCC card
selection screen .

Initiating an ATI Session

The Main Menu screen is displayed unless a login ID and password is required or
the ATI is already in use.

If the ATI is already in use, the message

connection refused

is sent to the

terminal attempting Telnet access.
If security is enabled and Telnet is used to access the terminal unit directly (you did

not log in through the MCC), the system prompts you for a login ID and password.

Login Hotwire
Slot: 4 Model: 8784

LOGIN

Login ID:
Enter Password:

-------------------------------------------------------------------------------­Ctrl-a to access these functions Exit

If you enter an invalid login ID and password three times, the T elnet session closes
or the terminal connection returns to an idle state. Refer to Chapter 7,

February 2001 8784-A2-GB20-30

2-2

Security

.

Screen
Area

Function Ke y s
and
Message Area

2. Using the Asynchronous Terminal Interface

After you enter a valid login ID and password, the Main Menu appears.

main Access Level: Administrator Hotwire
Slot: 4 Model 8784

MAIN MENU

Status
Test
Configuration
Control

-------------------------------------------------------------------------------­Ctrl-a to access these functions Exit

The four branches of the Main Menu are as follows:

Select . . . To . . .

Status View system status, diagnostic test results, statistics, LED status, and

device identity information.
Test Select, start, stop and cancel tests for the unit’s interfaces.
Configuration Display and edit the configuration options.
Control Change the device identity, administer logins, download new firmware, or

initiate a power-up reset of the unit.

What appears on the screens depends on the:



Current configuration



Effective security access level

– How your unit is currently configured.

– An access level that is typically set by the

system administrator for each interface and each user.



Data selection criteria

– What you entered in previous screens.

8784-A2-GB20-30 February 2001

2-3

2. Using the Asynchronous Terminal Interface

Menu Hierarchy

The following illustration shows the paths to the different ATI screens.

Main

System and

Test Status

Network

Error

Statistics

Performance

Statistics

Network

Performance

Statistics

Status Test

Display

DSX-1

Statistics

Network &

DSX-1 T ests

Identity

LEDs

Current

Network

Performance

Statistics

Device

Tests

Configuration Control

Default

Factory

Configuration

Abort All

Tests

Network DSX-1 Copy

Telnet

Session

Change

Identity

Administer

Logins

Configuration

Loader

System

Ports

Options

General SNMP

Management

Download

Code

Apply

Download

Current

Configuration

Management

and

Communication

SNMP NMS

Security

Reset

Autorate

Reset

Card

SNMP

Traps

01-15708-03

February 2001 8784-A2-GB20-30

2-4

Screen Work Areas

There are two user work areas:



2. Using the Asynchronous Terminal Interface

Screen area

– This is the area above the dotted line that provides the menu

path, menus, and input fields.
The menu path appears as the first line on the screen. In this manual, the

menu path is presented as a menu selection sequence:

Menu
Path

Input
Fields

Function
Keys

Main Menu→Configuration



Function key and message area

→

Current Configuration→Network

– This is the area below the dotted line that
lists function keys specific to the screen, field value choices, and system
messages.

main/config/network Hotwire
Slot: 4 Model: 8784
Port: 2

NETWORK INTERFACE OPTIONS

Margin Threshold: –3db
Excessive Error Rate Threshold: 1E–5
AutoRate Disable
DSL Line rate 1552

Circuit Identifier: Clear

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save
Select: 1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9 LOS at Net, Pt

n

Field Value
Choices

8784-A2-GB20-30 February 2001

System
Messages

2-5

2. Using the Asynchronous Terminal Interface

Navigating the Screens

You can navigate the screens by:



Using keyboard keys



Using function keys



Switching between the two screen areas

Keyboard Keys

Use the following keyboard keys to navigate within the screen.

Press . . . To . . .

Ctrl-a Move cursor between the screen area and the function key and

Esc Return to the previous screen.

message area below the dotted line at the bottom of the screen.

Tab Move cursor to the next field on th e screen.
Backspace Move cursor to the previous field on the screen.
Enter Accept entry or display valid options on the last row of the screen

when pressed before entering data or after entering invalid data.
Ctrl-k Tab backwards (move cursor one field to the left).
Spacebar Select the next valid value for the field.
Delete (Del) Delete character that the cursor is on.
Up Arrow or Ctrl-u Move cursor up one field within a column on the same screen.
Down Arrow or Ctrl-d Move cursor down one field within a column on the same screen.
Right Arrow or Ctrl-f Move cursor one character to the right if in edit mode.
Left Arrow or Ctrl-b Move cursor one character to the left if in edit mode.
Ctrl-l Redraw the sc reen display, clearing information typed in but not

yet entered.

Procedure

To make a menu or field selection:

1. Press the Tab or right arrow key to position the cursor on a menu or field

selection. Each selection is highlighted as you press the key to move the
cursor from position to position.

2. Press Enter. The selected menu or screen appears.

3. Continue Steps 1 and 2 until you reach the screen you want.

February 2001 8784-A2-GB20-30

2-6

Function Keys

2. Using the Asynchronous Terminal Interface

The current setting or value appears to the right of the field name. You can enter
information into a selected field by:



Typing in the first letter(s) of a field value or command.



Switching from the screen area to the function key and message area below
the dotted line, and selecting a function key.

If a field is blank and the Field Value Choices display valid selections, press the
spacebar; the first valid value for the field will appear in the field. Continue
pressing the spacebar to scroll through other valid values. Press Enter to select
the value.

If a field is blank and the Field Values screen area displays valid selections, press
the spacebar and the first valid value for the field will appear. Continue pressing
the spacebar to scroll through other valid values.

All screen function keys located below the dotted line operate the same way
(upper- or lowercase) throughout the screens.

For the screen
function . . . Select . . . And press Enter to . . .

ClrFar F or f Clear far-end network statistics and refresh the screen.
ClrNear N or n Clear near-end network statistics and refresh the screen.

tats S or s Clear DSX-1 statistics and refresh the screen.

ClrS

ete L or l Delete data.

Del
Exit E or e Terminate the asynchronous terminal session.

ainMenu M or m Return to the Mai n Menu screen.

M

ew N or n Enter new data.

N

n D or d Display the next page, or group of entries.

PgD

p U or u Display the previous page, or group of entries.

PgU

esetMon R or r Reset an active Monitor 511 test counter to zero.

R
Save S or s Save inf ormation .

8784-A2-GB20-30 February 2001

2-7

2. Using the Asynchronous Terminal Interface

Switching Between Screen Work Areas

Select Ctrl-a to switch between the two screen areas.

Procedure

To access the screen function area below the dotted line:

1. Press Ctrl-a to switch from the screen area to the function keys.

2. Enter the designated (underlined) character for the function key or press the

Tab key until you reach the desired function key.

Example:

To save the current options, type s or S (Save).

3. Press Enter. The function is performed.

4. To return to the screen area above the dotted line, press Ctrl-a again.

main/config/network Hotwire
Slot: 4 Model: 8784
Port: 2

NETWORK INTERFACE OPTIONS

Margin Threshold: –3db
Excessive Error Rate Threshold: 1E–5
AutoRate: Disable
DSL Line Rate: 1552

Circuit Identifier: Clear

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu M

ainMenu Exit

February 2001 8784-A2-GB20-30

2-8

Ending an ATI Session

Use the Exit function key from any screen to terminate the session.

Procedure

To end a session with the asynchronous terminal interface:

1. Press Ctrl-a to go to the function keys.

ave changes if required. A confirmation message appears if you have made

2. S

but not saved changes to your configuration.

2. Using the Asynchronous Terminal Interface

3. Tab to E

through the MCC, the Hotwire Chassis Card Selection menu appears.

xit (or type e or E) and press Enter. If you have accessed the card

Exiting From the DSLAM Session

You can manually log out of the system or, after five minutes of inactivity, the
system automatically logs out when the inactivity time-out option is enabled.

Procedure

To manually exit from the Hotwire DSLAM system:

1. Return to the Hotwire Chassis Main Menu by selecting Exit from either the

Hotwire – MCC menu or the Hotwire – DSL menu.
The Hotwire Card Selection menu appears.

2. Press Ctrl-z.

The Hotwire Chassis Main Menu appears.

3. From the Hotwire Chassis Main Menu, select Logout.

The system exits from the current login session on the Hotwire DSLAM.

8784-A2-GB20-30 February 2001

2-9

2. Using the Asynchronous Terminal Interface

February 2001 8784-A2-GB20-30

2-10

Initial Startup and Configuration

Overview

This chapter provides instructions on how to access the unit for the first time,
configure it, download firmware, disable or reset the AutoRate feature, restore
access to the ATI, and reset the unit. These procedures include:



Entering Identity Information



Configuring the Unit

on page 3-3

on page 3-2

3

Current and Default Factory Configurations

—

Configuration Loader

—



Saving Configuration Changes



Downloading Firmware



AutoRate Feature

Disabling AutoRate

—

Resetting AutoRate

—



Restoring Access to the User Interface



Resetting the Unit

on page 3-10

on page 3-12

on page 3-5

on page 3-8

on page 3-10

on page 3-11

on page 3-4

on page 3-7

on page 3-11

8784-A2-GB20-30 February 2001

3-1

3. Initial Startup and Configuration

Entering Identity Information

After accessing the unit for the first time, use the Change Identity screen to
determine SNMP administrative system information that will be displayed on the
Identity screen.

To access the Identity screen, follow this menu selection sequence:

Main Menu→Control→Change Identity

main/control/change_identity Hotwire
Slot: 4 Model: 8784

IDENTITY

System Name: lllQJ98-001 Clear
System Location: Bldg. A412, 2nd Floor, Left cabinet Clear
System Contact: C. Parker 800-727-2396 pager 888-555-1212 Clear

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

The three System entry fields are alphanumeric and provide up to 128 characters
per field. The SNMP System entry fields are:



System Name:



System Location:



System Contact:

The general SNMP system name.

The physical location of the SNMP-managed device.

Identification information, such as contact name, phone

number, or mailing address.

Valid entry values are any printable ASCII character. ASCII printable characters
include:



Numeric 0–9



Upper- or lowercase A–Z



Space



All ASCII symbols except the caret (^)

Select Clear to reset a field to a null value.

February 2001 8784-A2-GB20-30

3-2

3. Initial Startup and Configu rati on

Procedure

To change Identity information:

1. Position the cursor in the System Name field. Enter a name unique in your

network to identify the SNMP managed node (or unit).

2. Position the cursor in the System Location field. Enter the physical location of

the unit.

3. Position the cursor in the System Contact field. Enter the name and contact

information for the person responsible for the unit.

4. Press Ctrl-a to switch to the function key and message key area below the

dotted line.

5. Select S

Configuring the Unit

Configuration option settings determine how the termination unit operates. Use the
Configuration menus to select, display, or change configuration option settings.

The unit is shipped with factory settings that match the options and settings in the
Default Factory Configuration area.

To display configuration options, follow this menu selection sequence:

Main Menu→Configuration (Load Configuration From)

main/configuration Hotwire
Slot: 4 Model: 8784

LOAD CONFIGURATION FROM:

Current Configuration
Configuration Loader
Default Factory Configuration

ave and press Enter.

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

8784-A2-GB20-30 February 2001

3-3

3. Initial Startup and Configuration

Make a selection by placing the cursor at your choice and pressing Enter.

If you select . . . Then . . .

Current
Configuration

Configuration
Loader

Default Factory
Configuration

The selected configuration option set is loaded and the
Configuration Edit/Display menu appears. This is the unit’s
currently active configuration.

The Configuration Loader screen is displayed allowing you to
upload or download configurations from a TFTP server.

The factory-set configuration options are loaded and the
Configuration Edit/Display menu appears. This is a read-only
configurat ion area.

Current and Default Factory Configurations

The Configuration Edit/Display screen appears when the current or default
configuration is loaded. To access the Configuration Edit/Display screen, follow
this menu selection sequence:

Main Menu→Configuration

– or –

Main Menu→Configuration

main/config/edit Hotwire
Slot: 4 Model: 8784

→

Current Configuration

→

Default Factory Configuration

CONFIGURATION EDIT/DISPLAY

Network
DSX-1
Copy Ports
System Options
Management and Communication

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

Load Default Factory Configuration to reset the unit’s configuration to its original
factory-set configuration to restore access to the ATI when the unit has been
misconfigured.

In the menu selection sequences contained in this manual, Current Configuration
is assumed and shown.

February 2001 8784-A2-GB20-30

3-4

3. Initial Startup and Configu rati on

See Appendix A,

Configuration Options

, for a list and explanation of the

configuration options available.

Select . . . To Access the . . . To Configure the . . .

Network Network Interface Options (Table A-1) DSL network interface

Ports 1–2.

DSX-1 DSX-1 Interface Options (Table A-2) DSX-1 interface

Ports 1–2.

Copy Ports Co py Ports Options (Table A-3) DSL network and DSX-1

interface ports by copying
options from port to port.

System Options System Options (Table A-4) General system options of

the unit.

Management
and
Communication

Telnet Session Options (Table A-5)



General SNMP Management Options



(Table A-6)
SNMP NMS Security Options



(Table A-7)
SNMP Trap Options (Table A-8)



Management support of
the unit through SNMP
and Telnet.

Configuration Loader

The Configuration Loader screen allows you to upload configurations to and
download configurations from a TFTP server. To access the Configuration Loader
screen, follow this menu selection sequence:

Main Menu→Configuration →Configuration Loader

main/config/config_loader Hotwire
Slot: 4 Model: 8784

CONFIGURATION LOADER

Image File Name:
TFTP Server IP Address: 000.000.000.000 Clear
TFTP Transfer Direction: Download from Server
Destination: DSL1

Start Transfer: Yes

Packets Sent: 0000000
Packets Received: 0000000
Bytes Sent: 0000000
Bytes Received: 0000000
Transfer Status: Transfer Pending

Activate new configuration? No

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

Clear

8784-A2-GB20-30 February 2001

3-5

3. Initial Startup and Configuration

Procedure

To upload or download a configuration:

1. Position the cursor in the Image File Name field. Type the name of the file to

be downloaded, or the name to be used for the file to be uploaded.
The file name may be a regular path name expression of directory names

separated by a forward slash (/) ending with the file name. The total path name
length can be up to 128 characters.

DOS machine:

—

If the TFTP server is hosted by a DOS machine, then
directory and filenames must consist of eight or less characters with an
optional suffix of up to three characters. The system will automatically
upload the configuration file and create directories and filenames as
needed.

UNIX machine:

—

If your server is hosted by a UNIX machine, the
configuration file you name must already exist. It will not be create d on the
UNIX system by the TFTP server. It is critical that you work with your
system administrator to plan the naming conventions for directories,
filenames, and permissions so that anyone using the system has read and
write permissions.

2. P osition the curso r in the TFTP Server IP Add ress field. Enter the TFTP se rver
IP address.

The first three digits of the IP address cannot be 000 or greater than 223.

3. Position the cursor in the TFTP Transfer Direction field. Use the spacebar to
select Download from Server or Upload to Server.

4. Position the cursor in the Destination field. Use the spacebar to select a
network destination for the TFTP server. Select DSL if the TFTP server
destination is the DSL link port or IMC (in-band management channel) if the
TFTP destination is the Management port of the MCC.

5. Position the cursor at the Start Transfer field. Use the spacebar to select Yes.
Press Enter.

When the data transfer is complete, the Transfer Status field changes to

Completed successfully

6. Position the cursor at the
select Yes to activate a new downloaded configuration. Press Enter.

February 2001 8784-A2-GB20-30

3-6

.

Activate new configuration?

prompt and

NOTE:

The following option settings are not changed:

— DSL Mode and Telnet Session configuration options
— Peer IP address

You must change these settings with the appropriate configuration menus
after the new configuration is activated. See Table A-1, Network Interface

Options, Table A-4, System Options, and Table A-5, Telnet Session
Options, in Appendix A,

Configuration Options

.

Saving Configuration Changes

When changes are made to the configuration options through the Configuration
Edit/Display menu, the changes must be saved to take effect. Use the S
function key to go to the Save Configuration screen.

main/config/saveprompt Hotwire
Slot: 4 Model: 8784

SAVE CONFIGURATION

Save Changes? No

WARNING:

An answer of “yes” will cause the system
to reset as if it had been powered off and on!

3. Initial Startup and Configu rati on

ave

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

Command Complete

Procedure

To save configuration options changes:

1. Press Ctrl-a to switch to the function keys area below the dotted line.

2. Select S

ave and press Enter.

If the Telnet Session configuration option is changed, a message displays on the
Save Configuration screen warning that an answer of Yes will cause the Telnet
session to disconnect. Do not answer Yes unless you are prepared to disconnect.

If the DSL Mode configuration option is changed, the Save Configuration screen
bears the warning that an answer of Yes will cause the system to reset. Do not
answer Yes unless you are prepared to reset the unit.

NOTE:

When Exit is selected before Save, or Save has been selected from any
Configuration/Edit menu, a Save Configuration screen appears that requires
a Yes or No response. If you select:

— Yes, the configuration is saved.
— No, the Main Menu reappears and changes are not saved.

8784-A2-GB20-30 February 2001

3-7

3. Initial Startup and Configuration

Downloading Firmware

The Download Code screen allows you to do wnload firmware from a TFTP server.
To access the Download Code screen, follow this menu selection sequence:

Main Menu→Control

main/control/download_code Hotwire
Slot: 4 Model: 8784

DOWNLOAD CODE

Image File Name: Clear
TFTP Server IP Address: 000.000.000.000 Clear
Destination: DSL1
Immediately Apply Download: No
Start Transfer: Yes

Packets Sent: 0000000
Packets Received: 0000000
Bytes Sent: 0000000
Bytes Received: 0000000
Transfer Status: Transfer Pending

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu M

→

Download Code

ainMenu Exit

Procedure

To download firmware:

1. Position the cursor in the Image File Name field. Type the name of the file to
be downloaded.

The file name may be a regular path name expression of directory names
separated by a forward slash (/) ending with the file name. The total path name
length can be up to 128 characters.

2. P osition the curso r in the TFTP Server IP Add ress field. Enter the TFTP se rver
IP address.

The first three digits of the IP address cannot be 000 or greater than 223.

3. Position the cursor in the Destination field. Use the spacebar to select a
network destination for the TFTP server.

4. Position the cursor in the Immediately Apply Download field. If you would like
the download to be effective immediately, select

Yes

.

February 2001 8784-A2-GB20-30

3-8

3. Initial Startup and Configu rati on

5. Position the cursor at the Start Transfer field. Use the spacebar to select Yes.
Press Enter.

When the data transfer is complete:

— If you selected Yes in Step 4, the unit is reset.
— If you selected No, the Transfer Status field changes to

successfully

.

Completed

If you specified No (the default) in the Immediately Apply Download field in
Step 4, you must now apply the download.

main/control/apply_download Hotwire
Slot: 4 Model: 8784

APPLY DOWNLOAD

Switch To Code Revision A01.00.02: No

WARNING:
An answer of “yes” will cause the system
to reset as if it had been powered off and on!

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

Select: Yes, No LOS at Net, Pt 1

Procedure

To apply the downloaded firmware:

1. Press the Escape key to return to the Control menu. Select Apply Download.

2. On the Apply Download screen, type

Yes

to reset the card and activate the

code.
Selecting Yes causes the termination unit to reset.

NOTE:

The termination unit has two flash memory banks to hold executable firmware.
You can switch between these two firmware versions by applying the firmware
listed on the Apply Download screen.

8784-A2-GB20-30 February 2001

3-9

3. Initial Startup and Configuration

AutoRate Fe ature

The AutoRate feature is designed to find the best rate possible for your DSL loop
conditions. After the DSL loop is up, configure the unit for a fixed rate. AutoRate
can be enabled or disabled from the Network Interface Options screen and reset
from the Control menu.

Disabling AutoRate

The AutoRate function is controlled from the Network Interface Options screen and
allows you to enable or disable AutoRate. The AutoRate option is only available if
the unit is configured as an LTU.

To access the Network Interface screen, follow this menu selection sequence:

Main Menu→Configuration→Current Configuration

main/config/network Hotwire
Slot: 4 Model: 8784
Port: 1

NETWORK INTERFACE OPTIONS

Margin Threshold: –3db
Excessive Error Rate Threshold: 1E–5
AutoRate Disable
DSL Line Rate 1552

Circuit Identifier: Clear

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

The AutoRate option defaults to Enable.

→

Network

Procedure

To disable AutoRate:

1. Position the cursor in the AutoRate field and press the spacebar.
The AutoRate field toggles to Disable and the DSL Line Rate field appears.

2. Enter a DSL Line Rate and press Enter.

February 2001 8784-A2-GB20-30

3-10

Resetting AutoRate

The Reset AutoRate function on the Control menu causes the unit to repeat the
AutoRate sequence. The unit attempts to establish the DSL link at the highest rate
(or the value of DSL Line Rate, which represents the AutoRate ceiling when
AutoRate is enabled). If the link fails, the next lower rate is tried until the link is
established.

To access the Reset AutoRate screen, follow this menu selection sequence:

Main Menu→Control→Reset AutoRate

Restoring Access to the User Interface

Improper configuration of the unit could render the user interface inaccessible. If
this occurs, access can be restored using the MCC.

Procedure

To reset the DSL Card:

3. Initial Startup and Configu rati on

1. Select

2. Enter

3. Enter

4. Enter Y if you want to clear NVRAM also, otherwise enter N.
Entering Y restores the Default Factory Configuration.

5. Enter Y at the prompt to confirm.

Configuration→DSL Cards →Reset Sl ot

DSL

nn

, where nn is the slot number for the DSL card you wish to reset.

Reset

.

.

NOTE:

When you enter Y, all data connectivity is interrupted.

You can also restore access to the user interface by reloading the Default Factory
Configuration options using the unit’s menus.

Procedure

To restore access to the ATI using the unit’s menus:

Main Menu→Configuration→Default Factory Configuration

8784-A2-GB20-30 February 2001

3-11

3. Initial Startup and Configuration

Resetting the Unit

If the user interface is functional and you would like to reset the unit without
removing it from the DSLAM, you can reset the unit from the Control menu.

Procedure

To reset the unit from the Control menu:

1. Follow this menu selection sequence:

Main Menu→Control→Reset Device

The message

2. Enter

Yes

Are you sure?

.

appears.

February 2001 8784-A2-GB20-30

3-12

Monitoring the Unit

What to Monitor

This chapter presents information on how to access and monitor unit status and
performance statistics on the network. The following sections describe how you
can monitor unit operations:



Viewing System and Test Status

Health and Status Messages

—

4

on page 4-2

on page 4-3

Self-Test Results Messages

—

Test Status Messages

—



Performance Statistics

Viewing Network Error Statistics

—

Viewing Network Performance Statistics

—

Viewing Current Network Performance

—

Viewing DSX-1 Performance Statistics

—



Viewing LED Status



Front Pane l LEDs

on page 4-5

on page 4-5

on page 4-6

on page 4-6

on page 4-8
on page 4-10
on page 4-11

on page 4-13

on page 4-14

8784-A2-GB20-30 February 2001

4-1

4. Monitoring the Unit

Viewing System and Test Status

To view System and Test Status information, follow this menu selection sequence:

Main Menu→Status→System and Test Status

main/status/system Hotwire
Slot: 4 Model: 8784

SYSTEM AND TEST STATUS Page 1 of 1

HEALTH AND STATUS SELF-TEST RESULTS TEST STATUS

------------------------------------------------------------------------------­LOS at Net, Pt n CPU Failed No Test Active
OOF at Net, Pt
EER at Net, Pt n Net DSL Failed, Pt n RLB Test Active, Pt
LOS at DSX-1 Pt n DSX-1 Pt Failed, Pt n Lamp Test Active
Net Margin Threshold, Pt n Memory Failed DLB Test Active, Pt
Device Failed
Download Failed

n

yyyyyyyy

Passed

Device Failed LLB Test Active, Pt

n
n

n

------------------------------------------------------------------------------­ ESC for previous menu MainMenu Exit

The System and Test Status screen has three sections:



Health and Status

– Displays messages in priority order (highest to lowest).

Refer to Table 4-1, Health and Status Messages.



Self-Test Results

– Results of the Diagnostic test run on the device itself.

Refer to Table 4-2, Self-Test Results Messages.



Test Status

– Currently active tests. Refer to Table 4-3, Test Status

Messages.

February 2001 8784-A2-GB20-30

4-2

Health and Status Messages

The following messages appear in the first column of the System and Test Status
screen. The highest priority Health and Status message also appears on all ATI
screens on the bottom right.

Table 4-1. Health and Status Messages (1 of 2)

Message What Message Indicates What To Do

4. Monitoring the Unit

AIS at DSX-1,
Pt

n

Device Failed

yyyyyyyy

Download Failed A firmware download was

EER at DSX-1,
Pt

n

EER at Net, Pt

n

An EER (Excessive Error

An Alarm Indication Signal
(AIS) is being receiv ed by the
DSX-1 interface.

An internal error has been
detected by the operating
software.
the 8-digit hexa dec im al
failure code.

interrupted.
An EER (Excessive Error

Rate) condition has been
detected on the DSX-1
interface.

Rate) condition has been
detected on the network
interface at Port
condition is cleare d when the
error rate falls below the
threshold value currently
configured.

yyyyyyyy

n

indicates

. The

1. Verify that the unit’s line
framing and line coding are
compatible.

2. Contact network provider.

1. Provide the 8-digit failure
code shown (
your service representative.

2. Reset the unit to clear the
condition and message.

Repeat the download.

1. Verify the attached
equipment coding is
compatible.

2. Contact network provider.

1. Check the Network
Perfor mance Statistics
screen for possible line
impairments.

2. Set the unit to run at a lower
DSL line rate.

yyyyyyyy

) to

LOF at DSX-1,
Pt

n

LOS at DSX-1,
Pt

n

LOS at Net, Pt

8784-A2-GB20-30 February 2001

An LOF (Loss Of Frame)
condition has been detected
on the DSX-1 interface.

An LOS (Loss Of Signal)
condition has been detected
on the DSX-1 interface. No
signal is being received on
Port

n

.

n

An LOS (Loss Of Signal)
condition has been detected
on the network interface. No
signal is being received on
Port

n

, possibly d ue to a l ocal

network problem.

1. Verify that the network cable
is securely attached at both
ends.

2. Contact network provider.

Verify that the interface cable is
securely attached at both ends.

1. Verify that the network cable
is securely attached at both
ends.

2. Contact network provider.

4-3

4. Monitoring the Unit

Table 4-1. Health and Status Messages (2 of 2)

Message What Message Indicates What To Do

Net Com Link Down The Network communication

link is down.
Communications between
the management s ystem a nd
the LTU/NTU is not possible.

Net Margin Threshold,
Pt

n

NTU/LTU Mis match,
Pt

n

OOF at Net, Pt

n

The signal-to-noise margi n
has excee ded the configured
threshold.

The NTU is not configured
compatibly with the LTU.

Three consecutive frame
synchronization bits were in
error.

1. Verify that the network cable
is securely attached at both
ends.

2. Verify the li nk protocol for the
COM port is configu red
correctly.

1. Check the Network
Perfor mance Statistics
screen for possible line
impairments.

2. Set the unit to run at a lower
DSL line rate.

3. Contact network provider.

Configure units to match.

1. Check the Transmit Clock
Source configurat ion options.
Do not set both the l oc al and
remote unit to Internal,
External, or Loop timing.

2. Set the unit to run at a lower
DSL line rate.

3. Contact network provider.

Prim Clk Failed Pt

System Operational There are no problems

Yellow at DSX-1, Pt

n

A failure has occurred in the
primary clock source
configured from the N etwo rk,
DSX, or from the card
internal clock.

detected.

n

A Yellow Alarm Indication
signal is being received by
the DSX-1 interface .

1. Verify that the network cable
is securely attached at both
ends.

2. Contact network provider.

No action is needed.

1. Verify that the unit’s line
framing and line coding are
compatible.

2. Contact network provider.

February 2001 8784-A2-GB20-30

4-4

Self-Test Results Messages

The results of the last power-on or reset self-test appear in the middle column of
the System and Test Status screen.

Table 4-2. Self-Test Results Messages

Message What Message Indicates What To Do

4. Monitoring the Unit

Test Status Messages

CPU Failed The CPU failed internal

testing.

Device Failed One or more of the unit’s

integrated circuit chips has
failed device-level testing.

DSX-1 Failed, Pt

xxxxxxxx

Failure

Memory Failed The unit failed memory

Net DSL Failed, Pt

Passed No errors were detected. No action is needed.

n

The unit failed to internally
loop data on the DSX-1

n

Port

.

An internal failure occurred.

(xxxxxxxx

8-digit hexadecimal failure
code for use by service
personnel.)

verification.

n

The unit faile d to loop data on
the network DSL circuit of
Port

represents an

n

.

1. Reset the unit and try again.

2. Call your service
representative for
assistance.

Record the failure code and
contact your service
representative.

1. Reset the unit and try again.

2. Call your service
representative for
assistance.

The Test Status messages in the following table appear in the right column of the
System and Test Status screen.

Table 4-3. Test Status Messages

Test Status Message Meaning

511 Test Active, Pt

DLB Test Active, Pt
Lamp Test Active The Lamp Test is active, causing the LEDs on the front panel

LLB Test Active, Pt
No Test Active No tests are currently running.
RLB Test Active, Pt

n

A 511 Test and Monitor is active on the DSL Port n network
interface.

n

A Data Terminal Loopback test is active on Port n.

to light.

n

A network Line Loopback test is active on Port n.

n

A network Repeater Loopback test is active on Port n.

For information on testing, refer to Chapter 5,

8784-A2-GB20-30 February 2001

Testing

.

4-5

4. Monitoring the Unit

Performance Statistics

Performance statistics can assist you in determining the duration of specific
conditions and provide a historical context for problem detection and analysis.
Statistics are maintained for up to 96 15-minute intervals (24 hours).

Select a port to view performance statistics for that port. Port 1 is the default.
Use the applicable virtual function keys to page through the intervals and clear

statistics.



Select PgUp or PgDn to view more statistics.



Select ClrNear or ClrFar to clear the near- and far-end statistics to zero.



Select ClrStats to clear all statistics to zero.

Viewing Network Error Statistics

The terminal unit maintains error statistics on the network DSL interface for
each port.

To view Network Error Statistics, follow this menu selection sequence:

Main Menu→Status→Performance Statistics→Network Error Statistics

main/status/performance/net_error Hotwire
Slot: 4: Model: 8784
Port: 2 NETWORK ERROR STATISTICS

Current Interval Timer: 2 Error Events Counter: 34

--------------------------------------------------------------------------------

---ES--- ---SES--- --FEBE-- -Complete­ Near Far Near Far Near Far Near Far
Current Int: 000 000 000 000 000 000 Yes No
Interval 01 000 000 000 000 000 000 Yes Yes
Interval 02 000 000 000 000 000 000 Yes Yes
Interval 03 000 000 000 000 000 000 Yes Yes
Interval 04 000 000 000 000 000 000 Yes Yes
Interval 05 000 000 000 000 000 000 Yes Yes
Interval 06 000 000 000 000 000 000 Yes Yes
Interval 07

Worst Interval: 24 09 14 08 18 18
Near Tot(valid): 00010 00000 00000
Far Tot(valid): 00010 00000 00000

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrNear ClrFar

000 000 000 000 000 000 Yes Yes

February 2001 8784-A2-GB20-30

4-6

4. Monitoring the Unit

The following Network Error Statistics are collected for the selected port:



ES (Errored Seconds):

Seconds during which one or more ESF error events

occurred.



SES (Severely Errored Seconds):

Seconds during which more than
320 cyclic redundancy check (CRC) error events or at least one Out of Frame
(OOF) event occurred.



FEBE (Far-End Block Errors):



Complete:

Whether the interval register contains data for all 900 seconds of

Errors reported by the remote equipment.

the interval.

Fields on this screen include:

Field . . . Contains . . .

Current Interval Timer The number of seconds which have elapsed in the current

15-minute interval. Maximum value is 900 seconds
(15 minutes). This counter is reset every 15 minutes.
When zero, the port is disabled.

Error Events Counter A running total of CRC errors. Range 0–65535. This counter

resets when the nea r-end data i s cleared. When z ero , the port is
disabled.

Current Int Performance data for the current 15-minute interval.

When blank, the port is disabled.

Interval

Worst Interval T he number of the interval with the worst (hi ghe st ) performance

Near and Far Tot A running total of the near- and far-end performance statistics.

xx

Historical performance data for up to 96 15-minute intervals
(24 hours). When blank, t he port is disabled.

data for both the near- and far-end statistics. If two or more
intervals are equal, the oldest interval is displayed.
When blank, the port is disabled.

8784-A2-GB20-30 February 2001

4-7

4. Monitoring the Unit

Viewing Network Performance Statistics

Network performance statistics allow you to monitor the current status of the
network DSL operations.

To view Network Performance Statistics for a port, follow this menu selection
sequence:

Main Menu→Status→Performance Statistics

→

Network Performance Statistics

main/status/performance/net_perf Hotwire
Slot: 4: Model: 8784
Port: 2 NETWORK PERFORMANCE STATISTICS
Payload Rate: 1536 kbps
Current Interval Timer: 002 DSL Line Rate: 1552 kbps

--------------------------------------------------------------------------------

--Mrgn-- --XmtPw- --RxGn-- -Complete­ Near Far Near Far Near Far Near Far
Current Int: +02 +01 +03 +03 +02 +02 Yes Yes
Interval 01 +02 +02 +03 +03 +02 +02 Yes No
Interval 02 +02 +01 +03 +03 +02 +02 Yes Yes
Interval 03 +02 +01 +03 +03 +02 +02 Yes Yes
Interval 04 +02 +01 +03 +03 +02 +02 Yes Yes
Interval 05 +02 +01 +03 +03 +02 +02 Yes Yes
Interval 06 +02 +01 +03 +03 +02 +02 Yes Yes
Interval 07 +02 +01 +03 +03 +02 +02 Yes Yes

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrNear ClrFar

The following Network Performance Statistics are collected for the selected port:



Mrgn:

Receive signal has exceeded the value needed to maintain a Bit Error Ratio
(BER) of 10



XmtPw:



RxGn:



Complete:

Signal to Noise Ratio (SNR) Margin, the amount (in dB) that the

–7

or better.

The transmit power level.

The receiver gain level.

Whether the interval register contains data for all 900 seconds of

the interval.

February 2001 8784-A2-GB20-30

4-8

4. Monitoring the Unit

Fields on this screen include

This Field . . . Contains . . .

Current Interval Timer The number of seconds which have elapsed in the current

15-minute interval. Maximum value is 900 seconds

(15 minutes). This counter resets every 15 minutes.
DSL Line Rate The rate of the DSL line (400 to 1552 kbps).
Pay lo ad Rate The rate of data transfer.
Current Int Performance data for the current 15-minute interval.
Interval

xx

Historical performance data for up to 96 15-minute intervals

(24 hours).

8784-A2-GB20-30 February 2001

4-9

4. Monitoring the Unit

Viewing Current Network Performance

The Current Network Performance Statistics screen allows you to monitor selected
current network status and error information for both the near- and far-end units
from a single screen.

To view Current Network Performance for a port, follow this menu selection
sequence:

Main Menu→Status→Performance Statistics→Current Network Performance

main/status/performance/current Hotwire
Slot: 4: Model: 8784
Port: 2 CURRENT NETWORK PERFORMANCE STATISTICS
Payload Rate: 1536 kbps
Current Interval Timer: 002 DSL Line Rate: 1552 kbps

-------------------------------------------------------------------------------

Near End Far End
Margin +02 +01
XmtPw +03 +03
RxGn +02 +02

ES 002 000
SES 002 000
FEBE 000 000

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
ClrNear ClrFar
Select: 1, 2, 3, 4 LOS at Net, Pt 1

The following Network Performance Statistics are collected for the selected port:



Mrgn:

Receive signal has exceeded the value needed to maintain a Bit Error Rate
(BER) of 10



XmtPw:



RxGn:

Signal to Noise Ratio (SNR) Margin, the amount (in dB) that the

–7

or better.

The transmit power level.

The receiver gain level.

The following Network Error Statistics are collected for the selected port:



ES (Errored Seconds):

Seconds during which one or more ESF error events

occurred.



SES (Severely Errored Seconds):

Seconds during which more than
320 cyclic redundancy check (CRC) error events or at least one Out of Frame
(OOF) event occurred.



FEBE (Far-End Block Errors):

Errors reported by the remote equipment.

February 2001 8784-A2-GB20-30

4-10

Fields on this screen include:

Field . . . Contains . . .

4. Monitoring the Unit

Current Interval
Timer

Payload Rate The rate of data transfer.
DSL Line Rate The rate of the DSL line.

Viewing DSX-1 Performance Statistics

DSX-1 performance statistics allow you to monitor the current status of the DSX-1
interface when ESF framing is selected.

To view DSX-1 Performance Statistics, follow this menu selection sequence:

Main Menu→Status→Performance Statistics→DSX-1 Statistics

main/status/performance/DSX-1 Hotwire
Slot: 4 Model: 8784
Port: 2 DSX-1 PERFORMANCE STATISTICS

Current Interval Timer: 2 Error Events Counter: 0000

--------------------------------------------------------------------------------

--ES-- --UAS-- --SES-- --BES-- --LOFC-- --STATUS--

Current Int: 000 000 000 000 000 Y
Interval 01 000 000 000 000 000 none
Interval 02 000 000 000 000 000 none
Interval 03 000 000 000 000 000 none
Interval 04 000 000 000 000 000 none
Interval 05 000 000 000 000 000 none
Interval 06 000 000 000 000 000 none
Interval 07 000 000 000 000 000 none

The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter is reset every 15 minutes.
When zero, the port is disabled.

Worst Interval: 24 14 14 09 18
Tot(valid 96): 00010 00000 00000 00000 002

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn ClrStats

The following DSX-1 Performance Statistics are collected:



ES (Errored Seconds):

occurred.



UAS (U navailable Seconds):

UAS is received at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES.



SES (Severely Errored Seconds):

redundancy check (CRC) error events or at least one Out of Frame (OOF)
event occurred.

8784-A2-GB20-30 February 2001

Seconds during which one or more error events

Seconds during which service is unavailable.

Seconds during which 320 or more cyclic

4-11

4. Monitoring the Unit



BES (Bursty Errored Se conds):

Contains the number of bursty errored
seconds for the current interval. A bursty errored second is any second with
more than one but less than 320 CRC errors.



LOFC (Loss of Frame Count):

Contains the number of times that an LOF is

declared.



Status:

Contains the contents of the status events register. The status events
register maintains a history of specific events that have occurred during an
interval. Values include:

— Y: Remote alarm indication signal (yellow alarm) received at the DSX-1

interface

— L: Loss of signal detected at the DSX-1 interface
— E: Excessive error rate threshold exceeded
— F: Frame synchronization bit error detected
— V: Line code violation detected
— None: No significant events have occurred

Fields on this screen include:

This Field . . . Contains . . .

Current Interval
Timer

Error Events
Counter

Current Int Performance data for the current 15-minute interval.
Interval

Worst Interval Identifies the interval during which the most error events were

xx

The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds (15 minutes).
This counter resets every 15 minutes.

A running total of CRC and OOF events. Total range = 0–65535.
Counter resets when the statistics are cleared.

Historical performance data for up to 96 15-minute intervals
(24 hours) where the value of

detected.

xx

is from 01 to 96.

February 2001 8784-A2-GB20-30

4-12

Viewing LED Status

The status of the front panel LEDs can be viewed locally and remotely on the
Display LEDs status screen.

The LEDs are organized into three groups:



General



DSX-1



DSL Loop

To view the Display LEDs status screen, follow this menu selection sequence:

Main Menu→Status→Display LEDs

main/status/leds Hotwire
Model: 8784

DISPLAY LEDs

4. Monitoring the Unit

LEDs display the status of the unit

LEDs provide the status of the DSX-1 interface

LEDs display the activity on the DSL network

GENERAL DSX-1 DSL LOOP

-------------------------------------------------------------------------------­ ALRM:Off P1:Lnk Up P1:Lnk Up
TEST:On P2:Lnk Up P2:Lnk Up

-------------------------------------------------------------------------------­ ESC for previous menu MainMenu Exit

The LED status display screen is updated every 5 seconds. For information about
the meaning of the LEDs, see

Front Panel LEDs

on page 4-14.

8784-A2-GB20-30 February 2001

4-13

4. Monitoring the Unit

Front Panel LEDs

The following table describes the meaning and states of the LEDs on the
faceplate.

SYSTEM

Type LED LED is . . .* Indicating . . .

SYSTEM OK

DSX-1

O

K

A

lrm

T

e

st

1
2

(Green)

On

Off
Slow Cycling

Pulsing

Device failure; system processing has
stopped.

No power is being delivered to the card.
Unit is in minimum mode and a download

is required.
Normal operation.

DSL PORT

1
2

TDM

SDSL

8784

00-16144a-01

Alrm
(Amber)

Test
(Amber)

DSX-1 1, 2

(Green)

On

Off
On

Slow cycling
Off

On

Slow cycling
Fast cycling

Device failure, or the Power-On Self-Test
(POST) has failed.

No alarms exist.
Loopback test or 511 test pattern is

in progress.
POST is in progress.
No tests are active.

Recoverable signal is present on the
DSX-1 interface.

Yellow Alarm Indication (RAI) is present.
An OOF, LOF, EER, or AIS condition

exists.

DSL PORT 1, 2

(Green)

Off
On

Slow cycling
Fast cycling
Off

No signal is detected on the interface.
DSL link is up.

DSL training is in progress.
OOF condition exists.
DSL link is down.

* Slow Cycling: LED turns off and on in equal duration once per second.

Fast Cycling: LED turns off and on in equal duration 5 times per second.
Pulsing: LED turns off momentarily once per second.

February 2001 8784-A2-GB20-30

4-14

Testing

Accessing the Test Menu

From the Test menu, you can run network tests, data port tests, a lamp test for the
front panel LEDs, or abort all tests.

To access the Test menu, follo w this menu selection sequence:

Main Menu→Test

main/test Hotwire
Slot: 4 Model: 8784

5

TEST

Network & DSX-1 Tests
Device Tests

Abort All Tests

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

Select . . . To . . .

Network & DSX-1 Tests Start and stop tests on the network or DSX-1 interface.
Device Tests Start and st op lamp test.
Abort All Tests To abort current tests excluding Network-initiated loopback

tests. An aborted test may continue to run for a few seconds
as the abort command is sent to the remote end and
processed.

8784-A2-GB20-30 February 2001

5-1

5. Testing

Running Network Tests

Network tests require the participation of your network service provider.
To access the Network & DSX-1 Tests screen, follow this menu selection

sequence:

Main Menu→Test→Network & DSX-1 Tests

main/test/network_DSX1 Hotwire
Slot: 4 Model: 8784
Port: 2

NETWORK & DSX-1 TESTS

Test Command Status Results

-------------------------------------------------------------------------------­Local Loopbacks
Line Loopback: Start Inactive 00:00:00
DSX-1 Repeater Loopback: Start Inactive 00:00:00
DSX-1 DTE Loopback: Start Inactive 00:00:00

Remote Loopbacks
Send Line Loopback: Down Send Inactive 00:00:00

Pattern Tests
Send and Monitor 511 Stop Active hh:mm:ss - Errors 99999+

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
ResetMon

Use the

Command

column to start or stop a test. When the

Status

column shows
that a test is Inactive, Start is displayed; when a test is Active, Stop is displayed.
Position the cursor at the desired Start or Stop command and press Enter. The

Results

When the Send and Monitor 511 test is active, R

column displays the test duration.

esetMon is available to reset the

error counter to zero.
Selecting Abort All Tests from the Test menu will not disrupt a Send and

Monitor 511 test.

February 2001 8784-A2-GB20-30

5-2

Line Loopback

5. Testing

A Line Loopback (LLB) loops the received signal on the network interface back to
the network without change.

CAP

DSL
Port

CAP T1

FramerFramerTransceiver

LIU

AIS

DSX-1
Port

98-16112

Procedure

To run a Line Loopback:

1. Position the cursor at the Start command next to Line Loopback on the
Network & DSX-1 Tests screen.

2. Press Enter.
The Start command is changed to Stop.

3. To manually stop the test, verify that the cursor is positioned at the Stop
command.

4. Press Enter.

The Line Loopback cannot be started when another loopback or pattern test is
in progress.

8784-A2-GB20-30 February 2001

5-3

5. Testing

Repeater Loopback

A Repeater Loopback (RLB) loops the signal being sent from the DSX-1 port back
to the DSX-1 port.

CAP

DSL
Port

AIS

CAP T1

FramerFramerTransceiver

LIU

DSX-1
Port

99-16417

T1-to-T1 Repeater Loopback

CAP

DSL
Port

CAP T1

FramerFramerTransceiver

LIU

DSX-1
Port

99-16418

T1-to-V.35 Repeater Loopback

Procedure

To run a Repeater Loopback:

1. Position the cursor at the Start command next to Repeater Loopback on the
Network & DSX-1 Tests screen.

2. Press Enter.
The Start command is changed to Stop.

3. To manually stop the test, verify that the cursor is positioned at the Stop
command.

4. Press Enter.

The Repeater Loopback cannot be started when any other loopback test is
in progress.

NOTE:

Activating the Repeater Loopback test causes the Embedded Operations
Channel (EOC), used for management, to be lost to the remote unit.

February 2001 8784-A2-GB20-30

5-4

DTE Loopback

5. Testing

A DTE Loopback loops the DSX-1 signal back to itself before the signal is sent to
the Framer.

CAP

DSL

All Ones

Port

CAP T1

FramerFramerTransceiver

LIU

DSX-1
Port

98-16110

Procedure

To run a DTE Loopback:

1. Position the cursor at the Start command next to DTE Loopback on the
Network & DSX-1 Tests screen.

2. Press Enter.
The Start command is changed to Stop.

3. To manually stop the test, verify that the cursor is positioned at the Stop
command.

4. Press Enter.

The DTE Loopback cannot be started when any other loopback test is in progress.

8784-A2-GB20-30 February 2001

5-5

5. Testing

Remote Send Line Loopback

The local unit initiates this test by sending a line loopback Up or Down command
to the remote unit for 10 seconds. When the remote unit detects the loopback Up
command, it puts itself in line loopback and lights the front panel Test LED. The
remote unit remains in loopback until it receives a loopback Down command or the
remote unit's test timeout value is exceeded.

The Send Line Loopback tests both units. External equipment can be used to
verify the link.

Local Remote

CAPCAPT1

LIU

Framer Framer Transceiver

CAP

CAP T1

FramerFramerTransceiver

LIU

AIS

DSX-1
Port

98-16109

Procedure

To run a Remote Send Line loopback:

1. P osition the cursor at the Up or Down selection next to Send Line Loopback on
the Network & DSX-1 Tests screen.

2. Press the spacebar to select either Up or Down.

3. Position the cursor at the Send command next to Up or Down selection.

4. Press Enter.
The local unit stops sending the loopback command automatically after

10 seconds. You cannot stop the Remote Send Line Loopback test manually.

The Remote Send Line Loopback cannot be started when any other loopback or a
Send and Monitor 511 test is active on the network interface.

February 2001 8784-A2-GB20-30

5-6

Send and Monitor 511

5. Testing

The Send and Monitor 511 test causes the local and remote units to send a 511
test pattern to each other. The front panel Test LEDs of both units are on during
the test. The duration and results of the test are displayed on the Network & DSX-1
Tests screen of the initiating unit.

NOTE:

The Send and Monitor 511 test is not a loopback test. Each unit independently
sends and monitors a 511 pattern.

CAPT1

LIU

AIS

Framer Framer

CAP

511

Gen

511

Mon

Transceiver

511

Pattern

511

Pattern

CAP

511

Mon

511

Gen

Transceiver

CAP T1

FramerFramer

LIU

AIS

DSX-1
Port

98-16108

Procedure

To run a Send and Monitor 511 test:

1. P osition the cursor at the Start command next to Send and Monitor 511 on the
Network & DSX-1 Tests screen.

2. Press Enter.
The Start command is changed to Stop.

3. To manually stop the test, verify that the cursor is positioned at the Stop
command.

4. Press Enter.

When a Send and Monitor 511 test is active, a count of bit errors is displayed next
to the test duration, and the R
Type r or R or select the R

8784-A2-GB20-30 February 2001

esetMon virtual function key is available for use.

esetMon virtual function key to reset the error count.

5-7

5. Testing

Device Tests

The Device Tests men u l ists a single , ca rd-l e v el test, t he La mp Test. To ac cess th e
Device Tests screen, follow this menu selection sequence:

Main Menu→Test→Device Tests

main/test/card Hotwire
Slot: 4 Model: 8784

DEVICE TESTS

Test Command Status

-------------------------------------------------------------------------------­ Lamp Test: Start Inactive

Lamp Test

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu M

ainMenu Exit

The Lamp Test determines whether all LEDs are lighting and functioning properly.

Procedure

To test the LEDs:

1. Position the cursor at the Start command next to Lamp Test on the Device
Tests screen .

2. Press Enter.
The Start command is changed to Stop. During the Lamp Test, all LEDs blink

simultaneously every second. When you stop the Lamp Test, the LEDs are
restored to their normal condition.

3. To stop the Lamp Test, position the cursor at the Stop command.

4. Press Enter.

February 2001 8784-A2-GB20-30

5-8

Ending an Active Test

Except for the Remote Send Line Loopback, a test initiated by the user can be
ended by the user.

A test initiated by the user can be ended using:



Tes t Timeout opt ion

automatically terminate tests, and set the T est Duration (min) option to specify
the amount of time that tests can run before the unit terminates the test. The
default is 10 minutes. Refer to Table A-4, System Options, in Appendix A,

Configuration Options



Command column

position the cursor at Stop next to the active test and press Enter to stop a
specific test.



Abort All Tests menu selection

to stop all tests running on all interfaces.
when all tests on all interfaces have been terminated. Network-initiated
loopbacks cannot be stopped from the Test menu.

5. Testing

– Enable the Test Timeout system option so the unit can

.

– Under the Command column on any test screen,

– Select Abort All Tests from the Test menu

Command Complete

appears

An aborted test may continue to run for a few seconds as the Stop command is
sent to the remote end and processed.

8784-A2-GB20-30 February 2001

5-9

5. Testing

Telco-Initiated Tests

The Hotwire 8784 TDM SDSL Termination Unit supports Telco-initiated tests as
shown in the following table.

Activation and
Deactivation

In-Band Signal Supported Not Applicable Not Supported
Bit-Oriented Supported Supported Supported
Message-Oriented Not Applicable Not Supported Not Applicable

Telco-Initiated Line Loopback

The Hotwire 8784 Termination Unit supports line loopback as specified in
AT&T TR 54016, AT&T TR 62411, and ANSI T1.403. A Telco-initiated line
loopback loops the received signal on the DSX-1 interface back to the DSX-1
interface without modification. Framing, CRC, and FDL bits are returned unaltered,
and no BPVs or other line coding errors are removed.

DSL

All Ones

Port

Line
Loopback

CAP

Payload
Loopback

CAP T1

FramerFramerTransceiver

LIU

Remote Line
Loopback

DSX-1
Port

Telco

Telco-Initiated Payload Loopback

The Hotwire 8784 Termination Unit supports payload loopback as specified in
AT&T TR 54016 and ANSI T1.403. A Telco-initiated line loopback loops the
received signal on the DSX-1 interface back to the DSX-1 interface. Framing,
CRC, and FDL bits are regenerated at the point of the loopback, and BPVs are
removed.

DSL

All Ones

Port

CAP

CAP T1

FramerFramerTransceiver

LIU

99-16252

DSX-1
Port

99-16253

Telco

February 2001 8784-A2-GB20-30

5-10

Telco-Initiated Remote Line Loopback

If Remote Telco Loopback is enabled, a Telco-initiated line loopback loops
received data at the remote unit and passes it back to the Telco through the local
unit.

The following figure shows the data flow for a remote Telco-initiated payload
loopback.

5. Testing

LocalRemote

DSX-1
Port

AIS

LIU

Framer Framer Transceiver

CAPCAPT1

DSL

CAP

CAP T1

FramerFramerTransceiver

LIU

98-16109

DSX-1
Port

Telco

8784-A2-GB20-30 February 2001

5-11

5. Testing

February 2001 8784-A2-GB20-30

5-12

Messages and Troubleshooting

Overview

There are many messages available to assess the status of the device and
contribute to problem resolutions. Refer to the following sections:



Configuring SNMP Traps



Device Messages



Troubleshooting

on page 6-3

on page 6-5

on page 6-2

6

8784-A2-GB20-30 February 2001

6-1

6. Messages and Troubleshooting

Configuring SNMP Traps

An SNMP trap can be automatically sent out through the EOC or the Management
port to the SNMP manager when the termination unit detects conditions set by the
user. These traps enable the SNMP manager to gauge the state of the network.
Refer to Appendix B,
traps supported by the unit.

To configure the unit for SNMP traps, use the SNMP Traps Options screen to:



Enable SNMP traps.



Set the number of SNMP managers that receive SNMP traps from the unit.



Enter an IP address and network destination for each SNMP manager
specified.



Select the type of SNMP traps to be sent from the unit.

To configure SNMP Traps, follow this menu selection sequence:

Standards Compliance for SNMP Traps,

for details of SNMP

Main Menu→Configuration→Current Configuration

→

Management and Communication→SNMP Traps

main/config/management/trap Hotwire
Slot: 4 Model: 8784

SNMP TRAPS OPTIONS

SNMP Traps: Enable Number of Trap Managers: 5

NMS 1 IP Address: 135.014.040.001 Clear Destination: IMC
NMS 2 IP Address: 135.014.003.027 Clear Destination: IMC
NMS 3 IP Address: 135.014.001.008 Clear Destination: IMC
NMS 4 IP Address: 135.014.002.024 Clear Destination: IMC
NMS 5 IP Address: 204.128.146.035 Clear Destination: IMC

General Traps: Both
Enterprise Specific Traps: Enable
Link Traps: Both
Link Traps Interfaces: Network

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

Refer to Table A-8, SNMP Trap Options, in Appendix A,
configure SNMP traps.

February 2001 8784-A2-GB20-30

6-2

Configuration Options

, to

Device Messages

6. Messages and Troubleshooting

The Devi ce Me ss ag es i n Table 6-1, Device Messages, listed in alphabetical order,
may appear in the messages area at the bottom of the ATI screens.

Tab l e 6-1. Device Messages (1 of 2)

Device Message What Message Indicates What To Do

Access level is
Operator.
Configuration is
read-only.

Cannot Save – no
Login IDs with Access
Administrator

Command Complete Action requested has

Invalid Character (

Invalid Password Login is required and an

Invalid – Send Pattern
Already Active

The operator requested that
configuration opt ions be
loaded, but does not have
authority to edit them.

All of the login IDs being
saved have an access level
below Admini strator.

successfully completed.

x

) A nonprintable ASCII

character (x) has been
entered.

incorrect pass w o rd w a s
entered; access is denied.

A pattern test was already in
progress when the Start field
was selected .

If configuration o ptions are to b e
edited, use a Login ID that has
Administrator authority.

Change the access level of at
least one Login ID to
Administrator so that
configuration changes can be
made. (Operator-level users
cannot make configuration
changes.) Save the Login IDs.

No action is needed.

Re-enter information using valid
characters.

Try again.



Contact your system



administrator to v erify your
password.

Allow test to continue.



Select another test.



Stop the test.



Invalid –
Active

Invalid Test
Combination

IP address not in
MCC subnet

nnn.nnn.nnn.nnn

8784-A2-GB20-30 February 2001

[Test]

Already

The described test was
already in progress when
another selection was made.

A loopback or pattern test
was in progress when Start
was selected to start another
test, or was active on the
same or another interface
when Start was selected.

The Peer IP address
specified is not in the same
subnet as the MCC.

Allow test to continue.



Select another test.



Stop the test.



Wait until ot her test ends and



message clears.
Abort all tests from the Test



menu screen.
Stop the test from the same



screen the test was star ted
from.

Enter an IP address that is in
the same subnet as the MCC.

6-3

6. Messages and Troubleshooting

Tab l e 6-1. Device Messages (2 of 2)

Device Message What Message Indicates What To Do

Limit of six Login IDs
reached

An attempt to enter a new
login ID was made, and the
limit of six login/password
combinations has been
reached.

No Security Records to
Delete

Delete was selec ted from the
Administer Lo gin screen, a nd
no security records had been
defined.

Password Matching
Error – Re-enter
Password

Password entered in the
Re-enter Password field of
the Administer Log ins scre en
does not match what was
entered in the Password
field.

Please Wait Command takes longer than

5 seconds.

Test Active A test is running and no

higher priority health and
status messages exist.

1. Delete another
login/password combination.

2. Re-enter the new login ID.

No action is needed.



Enter a security record.



Try again.



Contact your system



administrator to v erify your
password.

Wait until message clears.

Contact service provider if



test initiated by the network.
Wait until the other test ends



and message clears.
Cancel all tests from the Test



screen.
Stop the test from the same



screen the test was star ted
from.

0.0.0.0 is an invalid
IP address

An IP address of all zeros
was entered.

Enter a valid, non-zero IP
address.

February 2001 8784-A2-GB20-30

6-4

Troubleshooting

6. Messages and Troubleshooting

The unit is designed to provide many years of trouble-free service. However, if a
problem occurs, refer to Table 6-2, Troubleshooting, for possible solutions.

Table 6-2. Troubleshooting

Symptom Possible Cause Solutions

Alarm LED is on. A system failure has

occurred.

Cannot access the unit
via the ATI.

Device Fail

appears on the System
and Test Status screen
under Self-Test results.

No power , or the LEDs
are not lit.

An LED is not lit. LED is out. Run the Lamp Test. If the LED

The terminal is not set up for
the correct rate or data
format, or the unit is
configured so it prevents
access.

The unit detects an internal
hardware failure.

The unit is not properly
seated in the DSLAM.

There is no power to the
DSLAM.

Refer to Table 4-1, Health and

Status Messages, in Chapter 4,

Monitoring the Unit

recommended action.

Check the cable and



connections.
Ensure that the unit is



configured properly in the
DSLAM. Verify its IP
address.

Reset the unit.



Reset the unit.



Contact your service



representative.

Verify that the unit is properly
inserted.

Verify that the DSLAM has
power.

in question does not flash with
the other LEDs, then contact
your service representative.

, for the

Not receiving data. The network or DSX-1 port

Power-On Self-T es t
fails. Only Alarm LED
is on after power-on.

8784-A2-GB20-30 February 2001

Check network and DSX-1



cables are not connected
(check front panel LEDs for
more information).

A test is being executed on
the unit (check the TEST LED
on the front panel).

The far-end device is offline. Make sure the far-end device

The unit has detected an
internal hardware failure.

port cables.
Check Health and Status



menu.
Run Loopback tests. Ref er to



Chapter 5,

Stop the test or wait for the test
to end.

is on.

Reset the unit and try again.



Contact your service



representative.

Testing

.

6-5

6. Messages and Troubleshooting

February 2001 8784-A2-GB20-30

6-6

Security

Overview

7

The termination unit provides several methods of security by limiting user access
to the ATI through option settings. You can:



Enable the Telnet Login Required option.



Limit the access by setting a Session Access Level option of Operator for the
Telnet Session.



Disable the access with the Telnet Session option.

See Table A-5, Telnet Session Options, in Appendix A,

ATI Access Levels

The unit has two access levels: Administrator and Operator. The access level
determines what functions are accessible, as shown in Table 7-1, Access Levels.

Table 7-1. Access Levels

ATI Access to Menu Functions Administrator Operator

Status Read-Only Read-Only
Test Full Access No Access
Configuration Full Access Read-Only
Control Full Access No Access

Access level is also used to control access via Telnet. If the Telnet Session Access
Level is set to Administrator, a Login ID with an Operator access level is not
permitted access (see Table A-5, Telnet Session Options, in Appendix A,

Configuration Options

The effective access level is the more restrictive of the session access level or the
login access level.

Configuration Options

).

.

8784-A2-GB20-30 February 2001

7-1

7. Security

Creating a Login

Logins apply to Telnet access directly to the Hotwire 8784 Termination Unit. The
Administer Logins menu option is not presented when you access the unit through
the MCC.

Six login ID/password combinations are available. Each Login ID and Password
must be unique and include an access level.

Procedure

1. To create a login record, follow this menu selection sequence:

Main Menu→Control→Administer Logins

main/control/admin_logins Hotwire
Slot: 4 Model: 8784

ADMINISTER LOGINS Page 1 of 1

Login ID: newuser
Access Level: Administrator

Are You Sure? Yes

-------------------------------------------------------------------------------­ ESC for previous menu MainMenu Exit
Save PgUp PgDn New Delete

2. Select New and press Enter. The Login Entry screen is displayed.

main/control/admin_logins Hotwire
Slot: 4 Model: 8784

LOGIN ENTRY

Login ID: newuser
Password: e34t136
Re-enter Password: e34t136
Access Level: Administrator

WARNING
New logins will not become permanent until saved
through the “ADMINISTER LOGINS” screen!

-------------------------------------------------------------------------------­Ctrl-a to access these functions ESC for previous menu MainMenu Exit
Save PgUp PgDn New Delete

February 2001 8784-A2-GB20-30

7-2

7. Security

3. Create the login by entering the following fields. Login IDs and passwords are
case-sensitive.

On the Login Entry
screen, for the . . . Enter . . .

Login ID 1 to 10 ASCII printable characters (hex21 through 7E).

Blanks are not allowed.

Password 1 to 10 ASCII printable ch aracters that can consist of 0–9,

a– z, A–Z, # (pound), . (period), – (dash), and / (slash).

Re-enter Password 1 to 10 ASCII pr intable characters that can consist of 0–9,

a– z, A–Z, # (pound), . (period), – (dash), and / (slash).

Access Lev el Administrator, Operator

NOTE:

Assign at least one Administrator-level Login ID. Full access is necessary
to make configuration option changes and administer logins.

Deleting a Login

4. Press Ctrl-a to switch to the function keys area below the dotted line. Select
S

ave and press Enter.

5. When Save is complete,

Command Complete

appears at the bottom of the

screen.

6. If additional logins are required, repeat Steps 3 through 5.

7. When all logins are entered, press Esc to return to the Administer Logins
screen.

8. Select S

ave and press Enter.

Procedure

1. To delete a login record, follow this menu selection sequence:

Main Menu→Control→Administer Logins

2. Select PgUp or PgDn and press Enter to page through login pages/records
until you find the one to be deleted.

3. Once the correct record is displayed, select Del

ete and press Enter.

4. To complete the delete action, select S
When the deletion is complete,

of the screen. The number of login pages/records reflects one less record,
and the record following the deleted record appears.

8784-A2-GB20-30 February 2001

ave and press Enter.

Command Complete

appears at the bottom

7-3

7. Security

Controlling SNMP Access

There are three methods for limiting SNMP access.



Disable the SNMP management option. Refer to Table A-6, General SNMP

Management Options, in Appendix A,



Assign SNMP community names and access types.



Limit SNMP access through validation of the IP address of each allowed
SNMP manager.

Assigning SNMP Community Names and Access Types

The unit can be managed by an SNMP manager supporting SNMP. The
community name must be supplied by an external SNMP manager accessing an
object in the MIB.

To define SNMP community names, follow this menu selection sequence:

Configuration Options

.

Main Menu→Configuration→Current Configuration
Management and Communication→General SNMP Management

Refer to Table A-6, General SNMP Management Options, in Appendix A,

Configuration Options



Enable SNMP Management.



Assign the SNMP community names of the SNMP Managers that are allowed
to access the units Management Information Base (MIB).



Specify Read or Read/Write access for each SNMP community name.

, to:

Limiting SNMP Access through the IP Addresses of the Managers

The unit provides an additional level of security through validation of the IP
addresses.

The SNMP Management option must be enabled. To control SNMP access with IP
addresses, follow this menu selection sequence:

Main Menu→Configuration→Current Configuration
Management and Communication→SNMP NMS Security

Refer to Table A-7, SNMP NMS Security Options, in Appendix A,

Options

. The SNMP access can be limited by:

→

→

Configuration



Enabling NMS IP address checking.



Add each IP address and access level.

NOTE:

Do not change or delete the IP address or access level of the NMS performing
the sets or enable IP address checking prior to adding the NMS to the table.

February 2001 8784-A2-GB20-30

7-4

IP Addressing

Selecting an IP Addressing Scheme

Your IP addressing scheme depends in part whether the MCC controlling the
chassis is running IP Conservative software.

Configurations Not Running IP Conservative Software

In a configuration not running IP Conservative software, the NTU’s network
interface IP address is assigned through the peer IP address of the LTU’s Network
Interface menu.

8

All Configurations

The termination unit is assigned an IP address and subnet through the DSLAM

Configuration→DSL Cards→Set IP Address

assigned, you can use the ATI to assign:



Peer IP addresses to the two TDM SDSL ports. These addresses are used as
the IP addresses of the remote units. See Table A-1, Network Interface

Options, in Appendix A,



An IP address for each NMS to act as a trap manager. See Table A-8, SNMP

Trap Options, in Appendix A,

The NTU obtains its IP address when the PPP link is established over the EOC.
Use the ATI to assign:



An IP address for each NMS. Se e Tab le A-7, SNMP NMS Security Options, in
Appendix A,



An IP address for the TFTP server you wish to use to upload and download
configurations. See

Configuration

Configuration Options

, and the documentation for your TFTP server.

Configuration Options

Configuration Options

Configuration Loader

menu. Once the address is

.

.

.

in Chapter 3,

Initial Star tup and

8784-A2-GB20-30 February 2001

8-1

8. IP Addressing

Review the following information in preparation for selecting an IP addressing
scheme.



Any legal host address is allowed for a given subnet. The address choice
within the subnet is arbitrary.



A single route to a subnet is all that is needed to reach every device on a
subnet. The unit’s routing table supports a maximum of 20 routes.

IP Addressing Example

See Figure 8-1, Peer IP Address Assignments, for an example of an IP addressing
scheme. In the example, the Peer IP Address:



Refers to the IP address of the unit configured as an NTU.



Is assigned by the LTU.

DSLAM

MCC

MCC Backplane
Address = 126.35.1.1

MCC Backplane
Mask = 255.255.255.0

LTU Backplane
Address = 126.35.1.16

LTU

87xx

DSLAM

Figure 8-1. Peer IP Address Assignments

Peer IP Address = 126.35.1.5

Port 1

Port 2

Peer IP Address = 126.35.1.1

Port 3

Peer IP Address = 126.35.1.2

Port 4

Peer IP Address = 126.35.1.3

MCC

NTU

MCC Base
Address = 126.35.50.1

MCC Base Subnet
Mask = 255.255.255.0

79xx

NTU Backplane
Address = 126.35.50.1

79xx

79xx

99-16040-02

February 2001 8784-A2-GB20-30

8-2

Configuration Options

Overview

The tables in this appendix summarize the configuration options accessed when
you select Configuration on the Main Menu. The configuration options are
arranged into groups based upon functionality.

Select . . . To Access the . . . To Configure the . . .

Network Network Interface Options (Table A-1) DSL network interface

DSX-1 DSX-1 Interface Options (Table A-2) DSX-1 interface port.

A

Ports 1 and 2.

Copy Ports Copy Ports Options (Table A-3) DSL network and DSX-1

interface ports by copying
options from port to port.

System System Options (Table A-4) General system options of

the unit.

Management
and
Communication

NOTE:

All changes to configuration options must be saved. Refer to

Configuration Changes

Telnet Session Options (Table A-5)



General SNMP Management



Options (Table A-6)
SNMP NMS Security Options



(Table A-7)
SNMP Trap Options (Table A-8)



in Chapter 3,

Initial Star tup and Configuration

Management support of the
unit through SNMP and
Telnet.

Saving

.

8784-A2-GB20-30 February 2001

A-1

A. Configuration Options

Network Interface Options

For Network Interface Options, refer to Table A-1, Network Interface Options.
To access the Network Interface Options screen, follow this menu selection
sequence:

Main Menu→Configuration→Current Configuration→Network

main/config/network Hotwire
Slot 4 Model: 8784
Port 2

NETWORK INTERFACE OPTIONS

Margin Threshold: –3db
Excessive Error Rate Threshold: 1E–6
AutoRate: Disable
DSL Line Rate: 1552 Kbps

Peer IP Address: 111.255.255.000 Clear

Circuit Identifier: Clear

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

Table A-1. Network Interface Options (1 of 2)

Margin Threshold

Possible Settings:

6db, 7db, 8db, 9db, 10db

Default Setting:
Determines the lev el, e xpres sed in decibe ls, at w hich a signal -to-noise m argin condi tion is

recognized.

to

–5db

10db

Excessive Error Rate Threshold

Possible Settings:
Default Setting:

Determines the error rate at whic h an excessive error rate (EER) condition is recognized.
The rate is the ratio of the number of CRC errors to the number of bits received in a
certain period.

to

1E–4

1E–9

–5db, –4db, –3db, –2db, –1db, 0db, 1db, 2db, 3db, 4db, 5db,

0db

– Sets the margin threshold to this value.

1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9

1E–6

– Sets the error rate threshold to this value.

February 2001 8784-A2-GB20-30

A-2

Table A-1. Network Interface Options (2 of 2)

AutoRate

A. Configuration Options

Possible Settings:
Default Setting:

Enable, Disable

Disable

Determines whether the unit automati cally adjust s to the best li ne r ate f or con dition s, or is
fixed at the r ate in the DSL Line Rate field. The auto mat ic al ly se t r ate cannot exceed DSL
Line Rate.

AutoRate is only available when the unit is configured as an LTU.



Enable
Disable

– The LTU adjusts to the best line rate.

– The LTU’s line rate is the selected DSL Line Rate.

DSL Line Rate

Possible Settings:
Default Setting:

400, 528, 784, 1040, 1552

1552

Determines the fixed line rate of the LTU when AutoRate is disabled, and the maximum
rate to which the unit can be set when AutoRate is enabled.

DSL Line Rate is only available when the unit is configured as an LTU.



400

to

– The fixed DSL Line Rate, in kbps.

1552

Peer IP Address

Possible Settings:
Default Setting:

001.000.000.000 – 223.255.255.255, Clear

000.000.000.000

Specifies the peer IP address providing the remote management link on the DSL loop.

Peer IP Address is only a vailable when the unit is co nfigure d as an LTU and the unit



is in not running in IP Conservative mode.

Address Field

–

(001.000.000.000 – 223.255.255.255)

– Enter an address for the peer
unit. The range f or the first b yte is 001 to 223 , with the e x ceptio n of 127. The ra nge f or the
remaining three bytes is 000 to 255. The IP address must be in the same subnet as the
MCC backplane address.

– Clears the IP address and sets to all zeros.

Clear
Circuit Identifier

Possible Settings:
Default Setting: [blank]

Uniquely identifies the circuit number of the transmission vendor’s DSL line for
troubleshooting purposes.

ASCII text field

except the ^ (caret) are allowed.

– Clears the field.

Clear

8784-A2-GB20-30 February 2001

ASCII text field

– Enter a maximum of 128 characters. All printable ASCII characters

A-3

A. Configuration Options

DSX-1 Interface Options

For DSX-1 Interface Options, refer to Table A-2, DSX-1 Interface Options. To
access the DSX-1 Interface Options screen, follow this menu selection sequence:

Main Menu→Configuration→Current Configuration

main/config/DSX-1 Hotwire
Slot 4 Model: 8784
Port 2
DSX-1 INTERFACE OPTIONS

Port Status: Enable
Line Framing: ESF
Line Coding: B8ZS
Line Equalization: 0-133
Excessive Error Rate Threshold: 1E-4
Send (AIS) on Network Failure: Enable
Send All Ones on DSX-1 Failure: Enable

Primary Clock Source: DSX-1

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

→

DSX-1

February 2001 8784-A2-GB20-30

A-4

Table A-2. DSX-1 Interface Options (1 of 2)

Port Status

A. Configuration Options

Possible Settings:
Default Setting:

Determines whether the port can be configured and used.

Enable
Disable

inaccessible, no alarms or traps associated with the port are generated, and the LED
associated with the port is OFF.

Line Framing

Possible Settings:
Default Setting:

Specifies the framing format to be used by the DSX-1 interface.

ESF

Interface.

D4

Interface.

Line Coding

Possible Settings:
Default Setting:

– The port can be configured and used.

– The port cannot be configured or used. Configuration fields for the por t are

Line Framing is only available when the unit is configured as an LTU. The NTU is



automatically configured to match the framing format used by the LTU.

– ESF framing for matting is used for transmitted and received data over the DSX-1

– D4 framing format is used for transmitted and received data over the DSX-1

Enable, Disable

Enable

ESF, D4

ESF

AMI, B8ZS

B8ZS

Specifies the line coding format to be used by the DSX-1 in terface.

– Indicates the line co ding format used by the DSX-1 interface is Alternate Mark

AMI

Inversion (AMI).

– Indicates the line coding format used by the DSX-1 interface is B8ZS.

B8ZS
Line Equalization

Possible Settings:
Default Setting:

Compensates for signal distortion for a DSX-1 signal over a given distance.

0–133 feet
133–266 feet
266–399 feet
399–533 feet
533–655 feet

Excessive Error Rate Threshold

Possible Settings:
Default Setting:

Determines the error rate at whic h an excessive error rate (EER) condition is recognized.
The rate is the ratio of the num ber of CRC5 errors to the number of bits received in a
certain period.

–

1E–4

1E-9

0–133, 133–266, 266 –399, 399 –533, 533–655

0–133

– Provides equalization for a cable length up to 133 feet.

– Provides equalization for a cable length up to 266 feet.
– Provides equalization for a cable length up to 399 feet.
– Provides equalization for a cable length up to 533 feet.
– Provides equalization for a cable length up to 655 feet.

1E–4, 1E–5, 1E–6, 1E–7, 1E–8, 1E–9

1E–4

– The rate at which EER is recognized.

8784-A2-GB20-30 February 2001

A-5

A. Configuration Options

Table A-2. DSX-1 Interface Options (2 of 2)

Send (AIS) on Network Failure

Possible Settings:
Default Setting:

Specifies the action taken on the signal transmitted to the DSX-1 when a valid signal
cannot be recovered from the network interface (LOS or OOF).

Enable

LOS or OOF condition on the network interface.

Disable

unchanged.

Send All Ones on DSX-1 Failure

Possible Settings:
Default Setting:

Specifies the action taken on the signal transmitted to the network when a valid si gnal
cannot be recovered from the network interface (LOS or OOF).

Enable

condition on the DSX-1 interface.

Disable

unchanged.

Primary Clock Source

Possible Settings:
Default Setting:

– An Alarm Indication Signal (AIS) is sent to the DSX-1 port in the event of an

– The failed signal on the interface is pass ed through to the DSX-1 network

– A pattern of all ones is sent to the DSX-1 port in the event of an LOS or LOF

– The failed signal on the interface is pass ed through to the DSX-1 network

Enable, Disable

Enable

Enable, Disable

Enable

DSX-1, Internal

Internal

Determines the primary clock source for the unit in Bypass mode.

Primary Clock Source is available only when the unit is configured as an LTU. If



DSL Line Rate is set lower than 1552 kbps, Primary Clock Source is forced to
DSX-1 and cannot be changed.

Internal
DSX-1

– The clock source is derived from the internal oscillator.

– The clock source is derived from the DSX-1 interface.

February 2001 8784-A2-GB20-30

A-6

Copy Ports Options

You can copy the configuration options of one DSX-1 interface and DSL loop to
another using the Copy Ports screen. For Copy Ports options, refer to Table A-3,

Copy P orts Options. To access the Copy Ports screen, follow this menu selection

sequence:

Main Menu→Configuration→Current Configuration→Copy Ports

main/config/copy Hotwire
Slot 4 Model: 8784

COPY PORTS

From: Port 1:
To: Port 2:

Perform Copy

Perform Copy Then Increment

A. Configuration Options

-------------------------------------------------------------------------------­ ESC for previous menu MainMenu Exit
Save

Table A-3. Copy Ports Options

From: Port

Possible Settings: 1,
Default Setting:

Controls the source of the configuration options.

to 2 – The configuration of the selected port is copied.

1
To: Port

Possible Settings: 1, 2,
Default Setting:

Controls the target of the configuration options.

to 2 – The configuration of the selected port is replaced. If Perform Copy Then

1

Increment is selected, the port number is incremented by 1 after the copy.

– The configurations of all ports are replaced by the configuration of the selected

All

From: Port.

NOTE: Peer IP Address and Circuit Identifier are

n

2

1

y

All

2

not

copied.

8784-A2-GB20-30 February 2001

A-7

A. Configuration Options

System Options

For System Options, refer to Table A-4, System Op tion s. To access the System
Options screen, follow this menu selection sequence:

Main Menu→Configuration→Current Configuration→System

main/config/system Hotwire
Slot 4 Model: 8784

SYSTEM OPTIONS

DSL Mode: LTU
Test Timeout: Enable
Test Duration (min): 10
Telco Initiated Loopbacks: Enable
Remote Telco Line Loopback: Disabled

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

February 2001 8784-A2-GB20-30

A-8

Table A-4. System Options

DSL Mode

A. Configuration Options

Possible Settings:
Default Setting:

Controls whether the unit is configured as a control unit or tributary unit.

– The unit is configured as a control unit (Line Termination Unit).

LTU

– The unit is configured as a tributary unit (Network Termination Unit). This unit will

NTU

request its IP address from the LTU during establishment of the PPP link.

NOTE: Changing this option will rese t the card.

Test Time out

Possible Settings:
Default Setting:

Allows tests to end au tomat ically. The feat ure should be enab led when t he unit is remote ly
managed, so that control can be regained after a test is acci dentally executed.

Enable
Disable

(network initiated tests). Refer to

Test Duration (min)

Possible Settings:
Default Setting:

Number of minutes for a test to be active before automatically ending.

1 – 120

– Loopback and pattern tests end when test duration is reached.
– Tests run until manually terminated from the Network Tests screen or remotely

Test Duration (min) option appears when Test Timeout is enabled.



– Amount of time in minutes for a test to run before terminating.

LTU, NTU

LTU

Enable, Disable

Enable

1 – 120

10

Running Network Tests

in Chapter 5,

Testing

.

Telco Initiated Loopback

Possible Settings:
Default Setting:

Determines if the unit will respond to Telco loopback commands on the DSX-1 interface.
See

Telco-Initiated Tests

Enable
Disable

Remote Telco Line Loopback

Possible Settings:
Default Setting:

Determines if the unit will perform a Telco initiated loopback on just the local unit or if the
loopback wil l be perf ormed on the remote D SL unit. See

Testing

Enable
Disable

– The unit will respond to Telco loopback commands.
– The unit will not respond to Telco loopback commands.

.

– The loopback will be in the remote unit.
– The loopback will be local.

Enable, Disable

Enable

in Chapter 5,

Enable, Disable

Disable

Testing

.

T el co-Initiat ed Tests

in Chapter 5,

8784-A2-GB20-30 February 2001

A-9

A. Configuration Options

Management and Communication Menu

The Management and Communication Menu includes the following:



Telnet Session Options (Table A-5)



General SNMP Management Options (Table A-6)



SNMP NMS Security Options (Table A-7)



SNMP Trap Options (Table A-8)

Telnet Session Options

To access the Telnet Sessions Options screen, follow this menu selection
sequence:

Main Menu→Configuration→Current Configuration

→

Management and Communication→Telnet Session

main/config/management/telnet Hotwire
Slot 4 Model: 8784

TELNET SESSION OPTIONS

Telnet Session: Enable
Telnet Login Required: Enable
Session Access Level: Administrator
Inactivity Timeout: Enable
Disconnect Time (Minutes) 5

-------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

February 2001 8784-A2-GB20-30

A-10

Table A-5. Telnet Session Options (1 of 2)

Telnet Session

A. Configuration Options

Possible Settings:
Default Setting:

Specifies if the unit will respond to a Telnet session request from a Telnet client on an
interconnected IP network.

– Allows Telnet sessions between the unit and a Telnet client.

Enable
Disable

Telnet Login Required

Possible Settings:
Default Setting:

Used to secure access to the ATI through a Telnet session. Login IDs are created with a
password and access level. Refer to

Enable

for a Login ID and password.

Disable
Session Access Level

Possible Settings:
Default Setting:

The Telnet session access level is interrelated with the access level of the Login ID. Refer
to

Administrator

level is determined by the Login ID. If Telnet Login Required is disabled, the session
access level is Administrator.

Operator

configuration screens.

– No Telnet sessions allowed.

– Security is enabled. When access is attempted via Telnet, the user is prompted

– No Login required for a Telnet session.

ATI Access Levels

– This is the lower access level, permitting read-only access to status and

Enable, Disable

Enable

Enable, Disable

Disable

Creating a Login

Administrator, Operator

Administrator

in Chapter 7,

– This is the higher ac cess level, permitting full control of the unit. Access

Security

, for more information.

in Chapter 7,

Security

.

Inactivity Timeout

Possible Settings:
Default Setting:

Provides automatic logoff of a Telnet session.

Inactivity Timeout is not available if the unit is in a DSLAM running in



IP Conservative mode; this option is forced to Enable.

Enable
Disable

8784-A2-GB20-30 February 2001

– The Telnet session terminates automatically after the Disconnect Time.

– A Telnet session will not be closed due to inactivity.

Enable, Disable

Disable

A-11

A. Configuration Options

Table A-5. Telnet Session Options (2 of 2)

Disconnect Time (Minutes)

Possible Settings:
Default Setting:

5

Number of minutes of inactivity before a Telnet session terminates automatically. Timeout
is based on no keyboard activity.

Disconnect Time (minutes) appears when Inactivity Timeout is enabled. It does not



appear when the unit is connected to a DSLAM card running in IP Conservative
mode.

– The Telnet session is closed after the selected number of minutes.

1 – 60

General SNMP Management Options

To access the General SNMP Management Options screen, follow this menu
selection sequence:

Main Menu→Configuration→Current Configuration
Management and Communication→General SNMP Management

main/config/management/SNMP Hotwire
Slot: 4 Model: 8784

GENERAL SNMP MANAGEMENT OPTIONS

SNMP Management: Enable

1 – 60

→

Community Name 1: Public
Name 1 Access: Read/Write
Community Name 2: Public
Name 2 Access: Read/Write

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

February 2001 8784-A2-GB20-30

A-12

Table A-6. General SNMP Management Options

SNMP Management

A. Configuration Options

Possible Settings:
Default Setting:

Enable or disables the SNMP management features.

– Enables SNMP management capabilities.

Enable
Disable

Community Name 1

Possible Settings:
Default Text:

Identifies the name of the community allowed to access the unit’s MIB. The community
name must be supplied by an external SNMP manager when that manager attempts to
access an object in the MIB.

– Disables SNMP management capabilities.

ASCII text field

– Clears the community name field.

Clear
Name 1 Access

Possible Settings:
Default Setting:

Determines the access level for Community Name 1.

– Allows read-only access (get) for Community Name 1.

Read
Read/Write

Enable, Disable

Disable

ASCII text field

Public

– Enter or edit a community name.

Read, Read/Write

Read

– Allows read/write access (get) for Community Name 1.

Community Name 2

Possible Settings:
Default Text: [null string]

Identifies the name of the second community allowed to access the unit’s MIB. The
community name must be supplied by an external SNMP manager when that manager
attempts to access an object in the MIB.

ASCII text field

– Clears the community name field.

Clear
Name 2 Access

Possible Settings:
Default Setting:

Determines the access level for Community Name 2.

– Allows read-only access (get) for Community Name 2.

Read
Read/Write

ASCII text field

– Enter or edit a community name.

Read, Read/Write

Read

– Allows read/write access (get/set) for Community Name 2.

8784-A2-GB20-30 February 2001

A-13

A. Configuration Options

SNMP NMS Security Options

To access the SNMP NMS Security Options screen, follow this menu selection
sequence:

Main Menu→Configuration→Current Configuration

→

Management and Communication →SNMP NMS Security

main/config/management/security Hotwire
Slot: 4 Model: 8784

SNMP NMS SECURITY OPTIONS

NMS IP Validation: Enable
Number of Managers: 2

NMS 1 IP Address: 135.014.040.001 Clear Access Type: Read/Write
NMS 2 IP Address: 135.014.003.027 Clear Access Type: Read/Write
NMS 3 IP Address: 135.014.001.008 Clear Access Type: Read
NMS 4 IP Address: 135.014.002.024 Clear Access Type: Read
NMS 5 IP Address: 204.128.146.035 Clear Access Type: Read

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

February 2001 8784-A2-GB20-30

A-14

Table A-7. SNMP NMS Security Options

NMS IP Validation

A. Configuration Options

Possible Settings:
Default Setting:

Specifies whether security checking is performed on the IP address of SNMP
management systems attempting to access the node.

– Security checking is performed on the IP address of SNMP management

Enable

systems attempting to access the node.

Disable
Number of Managers

Possible Settings:
Default Setting:

Specifies the num ber of SNMP management systems that can send SNMP messages.

1 – 5
NMS n IP Address

Possible Settings:
Default Setting:

Specifies the Internet Protocol address used to identify each SNMP manager.

001.000.000.000 – 223.255.255.255

range for the first byte is 001 to 223, with the exception of 127. The range for the
remaining three bytes is 000 to 255.

Clear

– No security checking is performed.

– Number of trap managers. An NMS IP address is required for each manager.

– Clears the IP address and sets to all zeros.

Enable, Disable

Disable

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

1

001.000.000.000 – 223.255.255.255, Clear

000.000.000.000

– Enter an address for each SNMP manager. The

Access Level

Possible Settings:
Default Setting:

Determines the access le v e l allo w ed for an authorized NMS when IP address v a lidati on is
being performed.

– Allows read-only access (get) to the accessible objects in the MIB for this device.

Read
Read/Write

this device.

Read, Read/Write

Read

– Allows read/write access (get/set) to the accessible objects in the MIB for

8784-A2-GB20-30 February 2001

A-15

A. Configuration Options

SNMP Trap Options

To access the SNMP Traps Options screen, follow this menu selection sequence:

Main Menu→Configuration→Current Configuration

→

Management and Communication→SNMP Traps

main/config/management/trap Hotwire
Slot: 4 Model: 8784

SNMP TRAPS OPTIONS

SNMP Traps: Enable Number of Trap Managers: 5

NMS 1 IP Address: 135.014.040.001 Clear
NMS 2 IP Address: 135.014.003.027 Clear
NMS 3 IP Address: 135.014.001.008 Clear
NMS 4 IP Address: 135.014.002.024 Clear
NMS 5 IP Address: 204.128.146.035 Clear

General Traps: Both
Enterprise Specific Traps: Disable
Link Traps: Both
Link Traps Interfaces: All

------------------------------------------------------------------------------­Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

February 2001 8784-A2-GB20-30

A-16

Table A-8. SNMP Trap Options (1 of 2)

SNMP T raps

A. Configuration Options

Possible Settings:
Default Setting:

Enable, Disable

Disable

Controls the generation of SNMP trap messages.

– SNMP trap messages are sent out to SNMP managers.

Enable
Disable

– No SNMP trap messages are sent out.

Number of Trap Managers

Possible Settings:
Default Setting:

1, 2, 3, 4, 5

1

Sets the number of SNMP management systems that will receive SNMP traps.

This field is not available when the unit is running in IP Conservative mode.



– Number of trap managers. An NMS IP address is required for each manager.

1 to 5
NMS n IP Address

Possible Settings:
Default Setting:

001.000.000.000 – 223.255.255.255, Clear

000.000.000.000

Specifies the Internet Protocol address used to identify each SNMP trap manager.

This field is not available when the unit is running in IP Conservative mode.



001.000.000.000 – 223.255.255.255

– Enter an address for each SNMP trap manager.
The range for the first byte is 001 to 223, with the exception of 127. The range for the
remaining three bytes is 000 to 255.

– Clears the IP address and sets to all zeros.

Clear
NMS n Destination

Possible Settings:
Default Setting:

IMC, DSL1, DSL2

IMC

Provides the network destination path of each trap manager.

NMS n Destination is only available when the unit is configured as an NTU and not



running in IP Conservative mode. Disabled ports cannot be specified.

– The Internal Management Channel (IMC) is the de f ault net wo rk destination. This is

IMC

the management interface to the MCC card in the DSLAM.

DSL1 to DSL2

– The specified port is the network destination.

General Traps

Possible Settings:
Default Setting:

Disable, Warm, AuthFail, Both

Both

Determines which SNMP traps are sent to each trap manager.

Disable
Warm
AuthFail
Both

– No general trap messages are sent.

– Sends trap message for

warmStart

– Sends trap message for

– Sends both trap messages.

NOTE: Refer to

SNMP Traps

in Appendix B,

events.

authenticationFailure

Standards Compliance for SNMP Traps

events.

.

8784-A2-GB20-30 February 2001

A-17

A. Configuration Options

Table A-8. SNMP Trap Options (2 of 2)

Enterprise Specific Traps

Possible Settings:
Default Setting:

Determines if SNMP traps are generated for enterprise-specific events.

– SNMP traps are generated for

Enable

NOTE: Refer to

Enable, Disable

Disable

Enterprise-Specific Traps

enterpriseSpecific

in Appendi x B,

events.

Standards Compliance for

SNMP Traps.

Disable
Link Traps

Possible Settings:
Default Setting:

Determines if SNMP traps are generated for link up and link down for one of the
communication interfaces.

Disable
Up

interfaces is oper atio na l.

Down

communication interfaces.

Both

– No enterprise-specific event traps are sent.

Disable, Up, Down, Both

Both

– No

linkUp

or

linkDown

linkUp

– A

– A

– Sends trap messages for detection of both

NOTE: Ref er t o

Traps

trap is generated when the unit recognizes that one of the communication

linkDown

trap is generated when the unit recognizes a failure in one of the

linkUp and linkDo wn

.

SNMP traps are generated.

in Appendix B,

linkUp

and

linkDown

.

Standards Compliance for SNMP

Link Traps Interfaces

Possible Settings:
Default Setting:

Determines if the SNMP
traps are generated for the network DSL interface and/or DSX-1 interface (DTE).

Network
DSX-1
All

DSX-1 interface.

– SNMP trap messages are generated for the DSL network interface.

– SNMP trap messages are generated for the DSX-1 interface.

– SNMP trap messages are generated for the DSL network interface, COM port, and

Network, DSX-1, All

All

linkUp

, SNMP

linkDown

, and interface-re lated

enterpriseSpecific

February 2001 8784-A2-GB20-30

A-18

Standards Compliance for SNMP Traps

SNMP Traps

This section describes the unit's compliance with SNMP standards and any
special operational features for the SNMP traps supported. The unit supports the
following traps:



warmStart



authenticationFailure



linkUp and linkDown

B

warmStart

authenticationFailure

SNMP Trap Description Possible Cause

warmStart The uni t has rein iti ali z e d

itself.
The trap is sent after the unit

resets and stabilizes.
There are no

variable-bindings.

SNMP Trap Description Possible Cause

authenticationF ail ure Failed attempts to access the

unit.
There are no

variable-bindings.

Reset command.



Power disruption.



Three unsuccessful attempts
were made to enter a correct
login/password combination.

8784-A2-GB20-30 February 2001

B-1

B. Standards Compliance for SNMP Traps

linkUp and linkDown

The link SNMP traps are:



linkUp

operational.



linkDown

not operational.

The network and synchronous port interfaces (physical sublayer) are represented
by an entry in the MIB-II interfaces table and supported by the DS1 MIB.

The following list describes the conditions that define linkUp and linkDown:

linkUp/Down Variable- Bindings

ifIndex (RFC 1573)



This object provides the index into the ifTable and potentially into tables in other MIBs.
The values of ifIndex are the same for all models, alt hough not all indexes are
supported for each model.

The ifIndex included with the trap consists of the slot number times 1000, plus:

– 2DSL Network Interface, Port 1
– 3DSL Network Interface, Port 2
– 10DSX-1 Port, Port 1
– 11DSX-1 Port, Port 2

ifAdminStatus (RFC 1573)



This object specifies the operational state of the interface:

– up(1)

– down(2)

– testing(3)

ifOperStatus (RFC 1573)



This object contains the same value as ifAdminStatus.

fType (RFC 1573)



i

This object is the type of interface:

– propPointToPointSerial(22)

– DS1(18)

– HDSL(96)

– The unit recognizes that one of the communication interfaces is

DSL Network: DSL link is established.
Synchronous Data Port: Port is enabled and both CTS and DSR are ON.

DSL Network: DSL link is not established.
Synchronous Data Port: Port is disabled or CTS or DSR is OFF.

A test is active on the interface.

Used for the synchronous data ports and EOC.

Used for DSX-1 T1 interface

Used for the HDSL network interface.

– The unit recognizes that one of the communication interfaces is

February 2001 8784-A2-GB20-30

B-2

Enterprise-Specific Traps

The enterpriseSpecific trap indicates that an enterprise-specific event has
occurred. The Specific-trap field identifies the particular trap that occurred. The
following table lists the enterprise-specific traps supported by the unit:

SNMP Trap Description Possible Cause

B. Standards Compliance for SNMP Traps

enterpriseSelfTestFail(2) A hardware failure of the

unit is detected duri ng the
unit's self-test. The trap is
generated after the unit
completes initialization.

enterpriseDeviceFail(3) An internal device failure. Operating software has

enterpriseTestStart(5) A test is running. At least one test has been

enterpriseConfigChange(6) The configuration changed

via the user interface. The
trap is sent after
60 seconds have elapsed
without another change.
This suppresses the
sending of numerous traps
when multiple cha ng es are
made in a short period of
time, as is typical ly the case
when changing
configuration opt ions.

enterpriseTestStop(105) All tests have been halted. All tests have been halted on

Failure of one or more of the
unit's hardware components.

detected an internal device
failure.

started on an interface.
Configuration has been

changed via the ATI.

an interface.

There are no variable-bindings for enterpriseDeviceFail and
enterpriseConfigChange. The variable-binding for enterpriseSelfTestFail is
devSelfTestResults.

8784-A2-GB20-30 February 2001

B-3

B. Standards Compliance for SNMP Traps

The tests that affect the enterpriseTestStart, enterpriseTestStop, and the
variable-bindings are different for each particular interface. Diagnostic tests are
only supported on the physical T1 network and user data port interfaces. The
specific tests and variable-bindings are described in the following table:

Interface

enterpriseTestStart/Stop
Variable-Bindings Possible Cause

DSL Network

DSX-1

ifIndex (RFC 1573)



ifAdminStatus (RFC 1573)



ifOperStatus (RFC 1573)



ifType (RFC 1573)



ifTestType (RFC 1573)



The follo wing object s control tests
in SNMP-managed devices:

– noTest – Stops the test in

progress.

– testLoopLLB – Init iates a Local

Loopback.

– testLoopRLB – Initiates a

Remote Loopback.

– testSendMon511 – Initiates a

Send and Monitor 511 test.

– testSendLLBUp – Initiates an

LLB Up message to the
remote unit.

– testSendLLBDown – Initiates

an LLB Down message to the
remote unit.

ifIndex (RFC 1573)



ifAdminStatus (RFC 1573)



ifOperStatus (RFC 1573)



ifTestType (RFC 1573)



The follo wing object s control tests
in SNMP-managed devices:

– noTest – Stops the test in

progress.

– testLoopExternalDTE

enterpriseTest Start – Any



one of the foll owin g tests is
active on the interface:

– Line Loopback
– Repeater Loopback
– Remote Line Loopback
– Send and Monitor 511

enterpriseTest Stop – No



tests currently running on
the interface.

enterpriseTest Start – Any



one of the foll owin g tests is
active on the interface:

– Data Terminal

Loopback

– Repeater Loopback
– testLoop RLB – initiates

a Repeater Loopback

– testLoop DTLB –

initiates a DSX-1 DTE
Loopback

enterpriseTest Stop – No



tests currently running on
the interface.

February 2001 8784-A2-GB20-30

B-4

Connector Pin Assignments

Overview

This section lists the pin assignments for the front panel 50-pin DTE connector. For
information about the DSLAM connectors, see the appropriate DSLAM installation
document.

Front Panel 50-pin DTE Connector Pinouts

DTE connectors on the Hotwire 8784 Termination Unit provide the 4-wire DSX-1

50

interface from each DSL port to the DTE. The following table lists the pin
assignments for each of these interfaces.

C

26

50-Pin

25

DSX-1 Port

1

97-15323

Port 2

Port 1

Connector
Pinout Function

30 Data Out (Ring)
5Data Out (Tip)
29 Data In (Tip)
4 Dat a In (Ring)
27 Data Out (Ring)
2Data Out (Tip)
26 Data In (Tip)
1 Dat a In (Ring)

8784-A2-GB20-30 February 2001

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C. Connector Pin Assignments

February 2001 8784-A2-GB20-30

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Technical Specifications

Specifications Criteria*

D

Size

Weight
Approvals

Safety Certifications Refer to the equipment's label for approvals on product.

Power

Physical En vironment

Operating temperature
Storage temperature
Relative humidity
Shock and vibration

* Technical specifications are subject to change without notice.

Length: 10 inches (25.4 cm)
Height: 12.3 inches (31.1 cm)
Width: 0.8 inch (2.0 cm)

Approximately 1.3 lbs. (0.6 kg)

The Hotwire 8784 TDM SDSL Termination Unit conta ins a
DC-to-DC converter that requires –48V power input. The
–48V power is distributed through the Hotwire DSLAM
backplane.

Maximum Power Dissipation: 19 watts
Result: 64.83 Btu/hr

32° to 122° F (0° to 50° C)
–4° F (–20° C) to 158° F (70° C)
5% to 85% (noncondensing)
Withstands normal shipping and handling.

8784-A2-GB20-30 February 2001

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D. Technical Specifications

February 2001 8784-A2-GB20-30

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