Paradyne Hotwire 7995-A2-422, Hotwire 7995-A2-700, Hotwire 7996-A2-410, Hotwire 7996-A2-420, Hotwire 7996-A2-700 User Manual

Hotwire TDM SHDSL Endpoints

Models 7995-A2-411, 7995-A2-421,

7995-A2-422, 7995-A2-700,
7996-A2-410, 7996-A2-420,

and 7996-A2-700

User’s Guide

Document No. 7990-A2-GB20-20

September 2004

Copyright © 2004 Paradyne Corporation.

All rights reserved.
Printed in U.S.A.

Notice

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transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or
by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express
written permission of Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773.

Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation
reserves the right to revise this publication and to make changes from time to time in the contents hereof without
obligation of Paradyne Corporation to notify any person of such revision or changes.

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

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor directly for any help needed. For additional
information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or
Paradyne worldwide office locations, use one of the following methods:



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

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Tradem ark s

Acculink, Bitstorm, Comsphere, DSL the Easy Way, ETC, Etherloop, FrameSaver, GranDSLAM, GrandVIEW, Hotwire,
the Hotwire logo, Jetstream, MVL, NextEDGE, Net to Net Technologies, OpenLane, Paradyne, the Paradyne logo,
Paradyne Credit Corp., the Paradyne Credit Corp. logo, Performance Wizard, StormPort, TruePut are registered
trademarks of Paradyne Corporation.

ADSL/R, Connect to Success, Hotwire Connected, iMarc, JetFusion, JetVision, MicroBurst, PacketSurfer, Quick
Channel, ReachDSL, Reverse Gateway, Spectrum Manager, and StormTracker are trademarks of Paradyne
Corporation.

All other products or services mentioned herein are the trademarks, service marks, registered trademarks, or
registered service marks of their respective owners.

A September 2004 7990-A2-GB20-20

Contents

About This Guide

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

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

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

1 About the TDM SHDSL Endpoint

 TDM SHDSL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

 TDM SHDSL Endpoint Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

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

 Front Panel LED Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

 Rear Panel Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

 SNMP Management Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Management Information Base (MIB) Support . . . . . . . . . . . . . . . 1-6

SNMP Trap Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

2 Using the Asynchronous Terminal Interface

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

 Communication Port Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

3 Initial Startup and Configuration

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

 Connecting Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Connecting to an Optional External DC Power Source . . . . . . . . . 3-2

 Connecting to the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

7990-A2-GB20-20 September 2004 i

Contents

 Connecting to a DTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

 Connecting to a System Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

 Entering Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

 Choosing a Configuration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

 Configuring the Unit Using Configuration Menus . . . . . . . . . . . . . . . . . 3-7

 Accessing and Displaying Configuration Options . . . . . . . . . . . . . . . . 3-8

Current and Default Factory Configurations . . . . . . . . . . . . . . . . . 3-9

Configuration Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

 Saving Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

 Resetting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

 Adaptive Rate Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Setting the DSL Line Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

 Downloading Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

4 Configuring the Unit Using the Internal Switches

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

 Configuring the Unit Using Internal Switches . . . . . . . . . . . . . . . . . . . . 4-2

Switchpack Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Model 7995 Switchpack Definitions . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Model 7996 Switchpack Definitions . . . . . . . . . . . . . . . . . . . . . . . . 4-5

5 Security

 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

 ATI Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

 Creating a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

 Deleting a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

 Resetting the Unit’s COM Port or Factory Defaults . . . . . . . . . . . . . . . 5-5

 Controlling SNMP Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Assigning SNMP Community Names and Access Types . . . . . . . 5-6

Limiting SNMP Access through the IP Addresses of the Managers 5-6

6 Monitoring and Troubleshooting

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

 Viewing System and Test Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

 Entry Response Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

ii September 2004 7990-A2-GB20-20

Health and Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Self-Test Results Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Test Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

7Testing

Contents

 Viewing DSL Error Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

 Viewing DSL Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

 Viewing G.703 Performance Statistics (Model 7996). . . . . . . . . . . . . . 6-14

 Viewing Current DSL Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

 Using the Display LEDs Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

 Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

 Viewing Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

 Accessing the Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

 Running DSL Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

DSL Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

G.703 Repeater Loopback (Model 7996) . . . . . . . . . . . . . . . . . . . 7-4

G.703 DTE Loopback (Model 7996) . . . . . . . . . . . . . . . . . . . . . . . 7-5

Remote Send Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

 Send and Monitor 511 Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

 SYNC Data Port Tests (Model 7995) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Data Terminal Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Data Channel Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Repeater Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

Send Remote Data Channel Loopback . . . . . . . . . . . . . . . . . . . . . 7-12

 Device Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

 Ending an Active Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

A Configuration Options

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

 DSL Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

 DSL Port Threshold Trap Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

 Synchronous Data Port Options for Model 7995 . . . . . . . . . . . . . . . . . A-8

 G.703 Interface Options for Model 7996 . . . . . . . . . . . . . . . . . . . . . . . A-12

 System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14

 Communication Port Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17

 Management and Communication Options Menu . . . . . . . . . . . . . . . . A-21

7990-A2-GB20-20 September 2004

Telnet Session Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21

Communication Protocol Options . . . . . . . . . . . . . . . . . . . . . . . . . A-23

General SNMP Management Options . . . . . . . . . . . . . . . . . . . . . . A-26

iii

Contents

SNMP NMS Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-28

SNMP Traps Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-30

B Standards Compliance for SNMP Traps

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

ifIndex Variable Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

warmStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

authenticationFailure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

linkUp and linkDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

 Enterprise-Specific Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

C Connectors, Cables, and Pin Assignments

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

 Power Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

 COM Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

 COM Port-to-PC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

 COM Port-to-LAN Adapter Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

 G.703 Network Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

 EIA-530-A Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

 EIA-530-A-to-X.21 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

 EIA-530-A-to-RS-449 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

 EIA-530-A-to-V.35 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11

 DSL Network Interface Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

D Technical Specifications

Index

iv September 2004 7990-A2-GB20-20

About This Guide

Document Purpose and Intended Audience

This guide contains information needed to set up, configure, and operate the
Hotwire Time Division Multiplexer Symmetric High-bit-rate Digital Subscriber Line
(TDM SHDSL) endpoints, Models 7995-A2-411, 7995-A2-421, 7995-A2-422,
7995-A2-700, 7996-A2-410, 7996-A2-420, and 7996-A2-700, and is intended for
installers and operators.

Document Summary

Section Description

Chapter 1, About the TDM
SHDSL Endpoint

Chapter 2, Using the
Asynchronous Terminal Interface

Chapter 3, Initial Startup and
Configuration

Chapter 4, Configuring the Unit
Using the Internal Switches

Chapter 5, Security Presents procedures for creating a login, setting the

Chapter 6, Monitoring and

Troubleshooting

Chapter 7, Tes ti ng Provides information about available tests and test

Appendix A, Configuration

Options

Describes the unit’s features and capabilities.

Provides instructions for accessing the user interface
and navigating through the screens.

Provides procedures for setting up the user interface
and for configuring the unit using the asynchronous
terminal interface.

Provides procedures for configuring the unit using the
internal switches instead of the asynchronous
terminal interface.

effective access levels, and controlling SNMP
access.

Describes using the LEDs, status messages, and
network statistics to monitor the unit and detect and
correct problems.

setup.

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

Appendix B, Standards

Compliance for SNMP Traps

7990-A2-GB20-20 September 2004 v

Contains SNMP trap compliance information.

Contents

Section Description

Appendix C, Connectors, Cables,
and Pin Assignments

Appendix D, Tec hn ic al
Specifications

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

A master glossary of terms and acronyms used in Paradyne documents is
available online at www.paradyne.com. Select Support → Technical Manuals→

Technical Glossary.

Product-Related Documents

Complete documentation for this product is available online at
www.paradyne.com. Select Support → Technical Manuals.

Document Number Document Title

7990-A2-GN10 Hotwire TDM SHDSL Endpoints, Models 7995-A2-411,

Contains connector and interface information.

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

alphabetical order.

7995-A2-421, 7995-A2-422, 7995-A2-700, 7996-A2-410,
7996-A2-420, and 7996-A2-700, Installation Instructions

8799-A2-GB20 Hotwire 8799 TDM SHDSL Line Card with G.703 Interface

User’s Guide

To order a paper copy of a Paradyne document, or to speak with a sales
representative, please call 1-727-530-2000.

vi September 2004 7990-A2-GB20-20

About the TDM SHDSL Endpoint

TDM SHDSL Overview

Hotwire® Time Division Multiplexer Symmetric High-bit-rate Digital Subscriber Line
(TDM SHDSL) 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.

Hotwire products support autorate. Units first synchronize to the highest line rate
that the 2-wire loop supports, then automatically configures the unit to the highest
multiple of 64 kbps supported by that line rate. Thirty-one line rates are available.
At all rates, a 3 kbps Embedded Operations Channel (EOC) is available, which
enables functions such as firmware downloads to remote units. Units can also be
configured manually to full or fractional E1 rates.

1

Hotwire products transport data over a 2-wire, full-duplex circuit over varying
distances based on the conditions of the loop. Using 24 AWG cable, these
TDM SHDSL products have a loop reach greater than 15,000 feet (4.6 km) at

2.048 Mbps.

7990-A2-GB20-20 September 2004 1-1

1. About the TDM SHDSL Endpoint

TDM SHDSL Endpoint Features

Hotwire TDM SHDSL Models 7995-A2-411, 7995-A2-421, 7995-A2-422,
7995-A2-700, 7996-A2-410, 7996-A2-420, and 7996-A2-700 are endpoints for the
chassis-mounted Hotwire 8799 Line Card that is housed in the Hotwire 8600 or
8800 Series Digital Subscriber Line Access Multiplexer (DSLAM).

Two Hotwire TDM SHDSL endpoints can also be configured to operate in a central
office SHDSL Transceiver Unit, Central Site (STU-C)-to-customer premises
SHDSL Transceiver Unit, Remote Terminal Site (STU-R) environment.

Hotwire TDM SHDSL endpoints have these standard features:

 Embedded Operations Channel (EOC). Provides remote management and

download capabilities via an SNMP or Telnet session over the DSL network on
a 3 kbps channel.

 Asynchronous Terminal Interface (ATI). Provides a menu-driven

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

 Local Management (endpoint). Provides local management using a:

— Terminal or equivalent through the COM port of the unit

— Telnet through the COM port of the unit

 Remote Management (DSLAM card). Provides remote management using:

— VT100-compatible terminal or PC via the Management Serial port of the

DSLAM

— NMS through the MCC 10BaseT port of the DSLAM

— Telnet over the EOC

 Alarm Indication. Provides front panel status LEDs.

 Diagnostic Testing. Provides the capability to diagnose device and network

problems and perform digital loopbacks, pattern tests, and self-test.

 Device and Performance Monitoring. Provides the capability of tracking and

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

 SNMP (Simple Network Management Protocol) Management. Provides

network management via an industry-standard SNMP management system.

 Automatic Configuration Capability. Simply connecting the units to the line

automatically configures the customer for the maximum data rate supported
by the local loop. Units can also be configured at fixed line speeds to achieve
maximum distances.

1-2 September 2004 7990-A2-GB20-20

Network Configuration

Figure 1-1, Sample Configurations, shows a network application using a DSLAM

in a central office (CO). In this configuration, a frame relay switch and router are
connected through the endpoint to partner units supporting a host or router and
frame relay encapsulated or unframed data. The figure also shows a
standalone-to-standalone configuration. Supported standalone-to­standalone configurations are shown in Table 1-1, Supported Standalone

STU-R/STU-C Combinations.

Table 1-1. Supported Standalone STU-R/STU-C Combinations

1. About the TDM SHDSL Endpoint

STU-R (CP)

STU-C (CO):

Synchronous ✓ Not Supported Not Supported

G.703 Framed ✓✓ Not Supported

G.703 Unframed ✓ Not Supported ✓

✓=Supported

Frame

Relay

Switch

Router

Synchronous G.703 Framed G.703 Unframed

CO Site

G.703 or V.35

8799 Line Card

in DSLAM

Customer Premises (CP)

799x

DSL

DSL

DSL

799x

799x

E1 Host
(Frame Relay
Encapsulated

Data)

(Frame Relay
Encapsulated

Router

Router

Data)

Figure 1-1. Sample Configurations

7990-A2-GB20-20 September 2004

STU-C

CO Site

STU-C

DSL

799x 799x

STU-R

CP

STU-R

03-17372

1-3

1. About the TDM SHDSL Endpoint

Front Panel LED Status Indicators

Figure 1-2 and Figure 1-3 show the front panels of the Hotwire TDM SHDSL

Endpoints. For more information about the front panel LEDs, refer to Front Panel

LEDs in Chapter 6, Monitoring and Troubleshooting.

TM

®

7995 TDM SHDSL

Figure 1-2. Hotwire 7995 TDM SHDSL Endpoint with Synchronous Interface

Front Panel

POWER

ALARM

TEST

DSL

DTE

01-17053

TM

POWER

ALARM

TEST

DSL

G.703

7996 TDM SHDSL

01-17054

Figure 1-3. Hotwire 7996 TDM SHDSL Endpoint with G.703 Interface

Front Panel

1-4 September 2004 7990-A2-GB20-20

Rear Panel Interfaces

Figure 1-4 and Figure 1-5 show the physical interfaces of the endpoints. For more

information about the rear panel interfaces, refer to Appendix C, Connectors,

Cables, and Pin Assignments.

1. About the TDM SHDSL Endpoint

I

O

POWER

PORT

DSLCOM

00-15880-01

Figure 1-4. Hotwire 7995 TDM SHDSL Endpoint with Synchronous Interface

Rear Panel

I

O

POWER DSLCOM

G.703

TX RX

75Ω120Ω

00-16005-01

Figure 1-5. Hotwire 7996 TDM SHDSL Endpoint with G.703 Interface

Rear Panel

7990-A2-GB20-20 September 2004

1-5

1. About the TDM SHDSL Endpoint

SNMP Management Capabilities

Hotwire Model 7995/7996 endpoints support SNMP Version 1, and can be
managed by any industry-standard SNMP manager and accessed by external
SNMP managers using SNMP.

Management Information Base (MIB) Support

For a detailed description of the supported MIBs, visit Paradyne’s Web site at
www.paradyne.com. Select Technical Support → Online Support → MIBs.

The following MIBs are supported:

 MIB II (RFC 1213 and RFC 2863 (was 1573)) – Defines the general objects

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

 Entity MIB (RFC 2037) – Supports all DSLAM cards.

 DS1/E1/DS2/E2 MIB (RFC 2495 (was 1406)) – Reports the performance

status of the interface and supports the features found on the Performance
Statistics screen.

 RS-232-Like MIB (RFC 1659) – Defines objects for managing RS-232-type

interfaces (e.g., V.35, RS-422, RS-423, etc.) and supports the synchronous
data port on the DSU.

 Paradyne Enterprise MIB – Supports configuration, status, statistics, and

tests.

 SHDSL MIB (draft-ietf-adslmib-hdsl2.txt) – Supports SHDSL.

1-6 September 2004 7990-A2-GB20-20

SNMP Trap Support

1. About the TDM SHDSL Endpoint

The Hotwire Model 7995/7996 Endpoint supports traps as defined in RFC 1215.

Figure 1-6, DSL SNMP Configuration, illustrates a typical DSL SNMP

configuration. Figure 1-7, DSL Local SNMP Configuration, shows a DSL SNMP
configuration where the NMS is connected directly to the endpoint’s
Communications Port. Figure 1-8, Peer IP Address Assignment, shows an
example of an IP addressing scheme.

Operation, Maintenance
and Provisioning Center

DSL

AC
T5A

Router

799x

EOC

250V

RTN48V

AAB B

AC

INPUT

48VDC CLASS 2 OR
LIMITED PWR SOURCE

DSLAM

Figure 1-6. DSL SNMP Configuration

DSL

Router

799x

EOC

Figure 1-7. DSL Local SNMP Configuration

8799

Test

OK

Alrm

SYSTEM

OK

Alrm

Test12

SYSTEM

OK

Alrm

Test12

SYSTEM

DC FUSES
T4A, MIN. 48V

5
46
3
2
1

.

STACK

A

B

POSITION

1

2

3

4

DSL PORT

G.703 ALRM

LINK-UP

1

2

3

4

DSL PORT

G.703 ALRM

LINK-UP

1

2

3

4

DSL PORT

G.703 ALRM

LINK-UP

DC PWR

FAN

.
.

ALM

B

A

.

IN

OUT SERIAL

799x

4

123

4

3

4

3

3

MCC 1

2

Ethernet
Interface

Network

3

2

8715

SDSL

1

Ethernet

LAN

COM

SNMP NMS

Data

01-17057

Router

SNMP NMS

01-17058

Router

Figure 1-8. Peer IP Address Assignment

7990-A2-GB20-20 September 2004

799x

STU-R

Node Address

126.35.1.16

EOC

Peer IP Address

125.35.1.17

Router

799x

STU-C

PPP

LAN Adapter

SNMP NMS

02-17207

1-7

1. About the TDM SHDSL Endpoint

1-8 September 2004 7990-A2-GB20-20

Using the Asynchronous Terminal
Interface

User Interface Access

You can communicate with the Hotwire TDM SHDSL endpoint with an
asynchronous terminal interface (ATI) using one of the following methods:

 Direct connection through the COM port of the endpoint or through the serial

port of the DSLAM management card.

 Telnet session through the Embedded Operations Channel (EOC).

NOTE:

2

Only one terminal interface session can be active at a time, and another user’s
session cannot be forced to end.

Security can limit ATI access several ways. To limit user access or set up login IDs,
refer to Chapter 5, Security.

Communication 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

7990-A2-GB20-20 September 2004 2-1

2. Using the Asynchronous Terminal Interface

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, you will see:

 A connection refused or connection failed message (if you are

using a Telnet session), or

 The IP address of the other user (if you are using the Management Serial

port).

If security is enabled on the unit and you used Telnet to access it directly (you did
not log in through the DSLAM management card), the system prompts you for a
login ID and password.

Login
Model: 799x

LOGIN

Login ID:
Enter Password:

-------------------------------------------------------------------------------­Ctrl-a to access these functions E

xit

2-2 September 2004 7990-A2-GB20-20

Screen
Area

2. Using the Asynchronous Terminal Interface

After you enter a valid login ID and password, the Main Menu appears. If you enter
an invalid login ID and password after three attempts, the Telnet session closes or
the terminal connection returns to an idle state. Refer to Chapter 5, Security.

main Access Level: Administrator
Model 799x

MAIN MENU

Status
Test
Configuration
Control

Function Keys
and
Message Area

-------------------------------------------------------------------------------­Ctrl-a to access these functions E

xit

Entry to all of the TDM SHDSL endpoint’s tasks begins at the Main Menu screen.
The four branches of the Main Menu are as follows:

Select . . . To . . .

Status View system status, diagnostic test results, statistics, LEDs, and device

identity information.

Test Select and cancel tests for the endpoint’s interfaces.

Configuration Display and edit the configuration options.

Control Change the device identity, administer logins, download new firmware, or

initiate a power-on reset of the endpoint.

After selecting an option, what appears on the screens depends on the:

 Current configuration – How your unit is currently configured.

 Effective security access level – 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.

7990-A2-GB20-20 September 2004

2-3

2. Using the Asynchronous Terminal Interface

Menu Hierarchy

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

Main

Status Test

System and

Test Status

DSL

Error

Statistics

Performance

7995: DSL Tests
7996: DSL and G.703 Tests

Performance

Statistics

7995: (Not Applicable)
7996: G.703 Statistics

DSL

Statistics

7995: Sync Data Port Tests
7996: (Not Applicable)

DSL Port

DSL Port

Threshold

Display

LEDs

Performance

Traps

Identity

Current

DSL

7995: Sync Port
7996: G.703

Configuration Control

Change

Identity

Administer

Factory

Config

Configuration

Loader

Abort

All

Tests

Device

Tests

System
Options

Communication

Por t

Download

Code

Logins

Current Configuration

Edit/Display

Apply

Download

Management

and

Communication

Reset

Device

2-4 September 2004 7990-A2-GB20-20

Telenet

Session

Communication

Protocol

General SNMP

Management

SNMP NMS

Security

SNMP

Traps

02-17046

Screen Work Areas

There are two user work areas:

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

 Function key and message area – This is the area below the dotted line that

2. Using the Asynchronous Terminal Interface

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:

Main Menu → Configuration→ Current Configuration → DSL Port

lists function keys specific to the screen, field value choices, and system
messages.

Menu
Path

Input
Fields

Function
Keys

Field Value
Choices

main/config/dsl_interface
Model: 799x

DSL INTERFACE OPTIONS

Estimated Line Length: Long
Startup Margin: 0dB
Max DSL Rate: 2056 Kbps
Min DSL Rate: 2056
EIA-530 Payload Rate: 2048
Remotely Initiated Loopback Enable
Peer IP Address: 135.090.025.001 Clear

Circuit Identifier:

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

ave

S
Select: Symmetrical, Asymmetrical LOS at Net, Pt 1

Kbps
Kbps

Clear

ainMenu Exit

System
Messages

7990-A2-GB20-20 September 2004

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 work areas

Keyboard Keys

Use the following keyboard keys to navigate within the screen.

Press . . . To . . .

Backspace Move cursor to the previous field on the screen.

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

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

Ctrl-k Tab backwards (move cursor one field to the left).

Ctrl-l Redraw the screen display, clearing information typed in but not

yet entered.

Delete (Del) Delete character that the cursor is on.

Down Arrow or Ctrl-d Move cursor down one field within a column on the same screen.

Esc Return to the previous screen.

Left Arrow or Ctrl-b Move cursor one character to the left if in edit mode.

Return (Enter) Accept entry or display valid options on the last row of the screen

when pressed before entering data or after entering invalid data.

Right Arrow or Ctrl-f Move cursor one character to the right if in edit mode.

Spacebar Select the next valid value for the field.

Tab Move cursor to the next field on the screen.

Up Arrow or Ctrl-u Move cursor up one field within a column on the same screen.

2-6 September 2004 7990-A2-GB20-20

2. Using the Asynchronous Terminal Interface

Procedure

To make a menu or field selection:

1. Press the Tab key or the 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.

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 or entering the designated function key.

Function Keys

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

All 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 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 Main Menu screen.

M

ew N or n Enter new data.

N

PgDn D or d Display the next page or group of entries.

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

PgU

ave S or s Save information.

S

7990-A2-GB20-20 September 2004

2-7

2. Using the Asynchronous Terminal Interface

Switching Between Screen Work Areas

Select Ctrl-a to switch between the two screen work areas to perform all screen
functions.

Procedure

To access the screen function area below the dotted line:

1. Press Ctrl-a to switch from the screen area to the function key and message
area below the dotted line.

2. Select either the function’s designated (underlined) character or press the Tab
key until you reach the desired function key.

Example:

To save the current screen, type s or S (S

3. Press Enter.

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

ave).

main/config/dsl_interface
Model: 799x

DSL INTERFACE OPTIONS

Estimated Line Length: Long
Startup Margin: 0dB
Max DSL Rate: 2056 Kbps
Min DSL Rate: 2056
EIA-530 Payload Rate: 2048
Remotely Initiated Loopback: Enable
Peer IP Address: 135.090.025.001 Clear

Circuit Identifier:

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

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

ave

S

Ending an ATI Session

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

Procedure

Kbps
Kbps

Clear

ainMenu Exit

To end a session with the asynchronous terminal interface:

1. Press Ctrl-a to go to the function key and message area below the dotted line.

2. Save changes if required. A confirmation message appears if you have made
but not saved changes to your configuration.

3. Tab to E

2-8 September 2004 7990-A2-GB20-20

xit (or type e or E) and press Enter.

Initial Startup and Configuration

Overview

This chapter provides instructions on how to access and configure your Hotwire
TDM SHDSL endpoint for the first time, displaying configuration options, using the
Adaptive Rate feature, and downloading firmware. These procedures include:

 Connecting Power on page 3-2

 Connecting to the Network on page 3-3

 Connecting to a DTE on page 3-3

 Connecting to a System Terminal on page 3-4

3

 Entering Identity Information on page 3-5

 Choosing a Configuration Method on page 3-6

 Configuring the Unit Using Configuration Menus on page 3-7

 Accessing and Displaying Configuration Options on page 3-8

— Current and Default Factory Configurations

— Configuration Loader

 Saving Configuration Options on page 3-13

 Resetting the Device on page 3-14

 Adaptive Rate Feature on page 3-15

 Downloading Firmware on page 3-16

7990-A2-GB20-20 September 2004 3-1

3. Initial Startup and Configuration

Connecting Power

If your package includes a power pack: Plug the power pack into an AC outlet
having a nominal voltage rating between 100 – 240 VAC. Connect the output cable
of the power pack to the connector marked POWER on the rear panel.

If your package includes a direct-connection DC power cable: Connect the
unit to an external +24 or –48 VDC power source as described in Connecting to

an Optional External DC Power Source.

Connecting to an Optional External DC Power Source

Using the DC power cable, the TDM SHDSL unit is capable of operating on a +24
or –48 VDC power supply.

CAUTION:

Make sure that the power switch is set to off before connecting the power
cable.

Procedure

To use the DC power cable with +24 VDC:

1. Connect the green wire to a suitable ground.

2. Connect the orange wire to the +24 VDC source.

3. Connect the white wire to the return.

4. Cut the black, red, and blue wires off at the outer insulation.

5. Plug the power connector into the Power receptacle of the unit.

Procedure

To use the DC power cable with – 48 VDC:

1. Connect the green wire to a suitable ground.

2. Connect the orange wire to the –48 VDC source.

3. Connect the black wire to the return.

4. Cut the red, white, and blue wires off at the outer insulation.

5. Plug the power connector into the Power receptacle of the unit.

3-2 September 2004 7990-A2-GB20-20

Table 3-1. Power Input Connector

Pin Number Wire Color Signal

1 Black – 48 VDC Return

2 Red – 48 VDC Return

3. Initial Startup and Configuration

3 Green Ground

4 White +24 VDC Return

5 Orange – 48 VDC

6 Blue No Connection

Connecting to the Network

Procedure

To connect the unit to the network:

1. Plug one end of the network cable into the rear panel DSL jack.

2. Connect the other end to the DSL network interface.

NOTE:

Do not use a flat VF network cable as this may severely degrade the
performance of the unit. Only use a Cat 5 twisted-pair network cable.

+24 VDC

546

23

1

99-16291

Connecting to a DTE

The DTE interface varies from model to model.

Model DTE Connection

7995 The synchronous interface is a 25-pin EIA-530-A interface. Depending on the

7996 The G.703 interface is either two BNC connectors (Transmit and Receive) for a

See Appendix C, Connectors, Cables, and Pin Assignments, for more information.

cable used, the interface can be adapted to an X.21, RS-449, or V.35 interface.

75-ohm unbalanced interface or an RJ48C, 8-position, unkeyed modular
connector for a 120-ohm balanced interface.

7990-A2-GB20-20 September 2004

3-3

3. Initial Startup and Configuration

Connecting to a System Terminal

An optional system maintenance terminal may be attached to the standalone
endpoint through the modular jack on the rear panel. The terminal allows you to
view the status of the unit and change configuration options. It must be a
VT100-compatible terminal or a PC running terminal emulation software.

Procedure

To connect the unit to a system terminal:

1. Connect the 9-pin end of the terminal cable into a COM port on your PC.

2. Plug the other end into the modular jack on the rear panel.

— If your PC requires a 25-pin connector to the COM port, see Appendix C,

Connectors, Cables, and Pin Assignments, for the correct cable pinouts.

3. Set the communication parameters on your PC or terminal to:

— 9600 baud

— 8 bit characters

—No parity

— 1 stop bit

— No flow control

3-4 September 2004 7990-A2-GB20-20

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 of the Status branch. To access the Identity screen, follow this
menu selection sequence:

Main Menu→ Control→ Change Identity

main/control/change_identity
Model: 799x

IDENTITY

3. Initial Startup and Configuration

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

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

ave

S

Clear
Clear

ainMenu Exit

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

 System Name: The general SNMP system name.

 System Location: The physical location of the SNMP-managed device.

 System Contact: 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.

7990-A2-GB20-20 September 2004

3-5

3. Initial Startup and Configuration

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 of the person responsible for the unit.

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

5. Select S

See Viewing Identity Information in Chapter 6, Monitoring and Troubleshooting to
view this information once you have entered it.

ave and press Enter.

Choosing a Configuration Method

You can make configuration changes through a VT100-compatible terminal using
the unit’s Configuration menus or by manually changing switches on the board.

The unit is shipped with the switchpacks disabled to allow settings to be made
through the Configuration menus. To use the switches, see Chapter 4, Configuring

the Unit Using the Internal Switches.

3-6 September 2004 7990-A2-GB20-20

Configuring the Unit Using Configuration Menus

Configuration option settings determine how the standalone TDM SHDSL
endpoint operates. Use the Configuration menus to select, display, or change
configuration option settings.

NOTE:

The Hotwire 7995/7996 TDM SHDSL Endpoint is preconfigured as an STU-R.
If using the unit as an STU-R, you may not need to change any configuration
option settings.

The TDM SHDSL endpoint is shipped with factory settings in the Default Factory
Configuration area. You can find default information by:

 Referring to Appendix A, Configuration Options.

 Accessing the Configuration branch of the TDM SHDSL endpoint’s menu.

The TDM SHDSL endpoint has two sets of configuration option settings.

3. Initial Startup and Configuration

Configuration Option Area Configuration Option Set

Current Configuration The unit’s currently active set of configuration options.

Default Factory Configuration A read-only configuration area containing the factory

default configuration options.

The Current Configuration matches the Default Factory Configuration until
modified and saved by the user. If the factory default settings do not support your
network’s configuration, you can customize the configuration options for your
application.

7990-A2-GB20-20 September 2004

3-7

3. Initial Startup and Configuration

Accessing and Displaying Configuration Options

To display configuration options, you must first load a configuration into the edit
area.

To load a configuration option set into the configuration edit area, follow this menu
selection sequence:

Main Menu→ Configuration (Load Configuration From)

main/configuration
Model: 799x

LOAD CONFIGURATION FROM:

Current Configuration
Configuration Loader
Default Factory Configuration

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

ainMenu Exit

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 screen appears.

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

The factory-set configuration option set is loaded and the
Configuration Edit/Display menu screen appears.

3-8 September 2004 7990-A2-GB20-20

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 →Current Configuration

– or –

Main Menu→ Configuration →Default Factory Configuration

main/config/edit
Model: 799x

CONFIGURATION EDIT/DISPLAY

DSL Port
DSL Threshold Traps
SYNC Port | G.703
System Options
Communication Port
Management and Communication

3. Initial Startup and Configuration

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

ave

S

ainMenu Exit

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

7990-A2-GB20-20 September 2004

3-9

3. Initial Startup and Configuration

See Appendix A, Configuration Options, for a list and explanation of the
configuration options.

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

DSL Port DSL Interface Options (Tab l e A -1 ) Physical DSL interface on

the unit.

DSL Threshold
Traps

DSL Port Threshold Trap Options
(Table A-3)

Threshold traps for the
Physical DSL port (STU-C
only).

SYNC Port
or

G.703

Synchronous Data Port Options –
Model 7995 (Table A-4)

G.703 Interface Options – Model 7996
(Table A-5)

Synchronous DTE
interface (Model 7995).

G.703 interface
(Model 7996).

System Options System Options (Ta bl e A -6 ) General system options of

the unit.

Communication
Port

Management and
Communication

Communication Port Options
(Table A-7)



Telnet Session Options (Tab l e A - 8 )



Communication Protocol Options
(Table A-9)



General SNMP Management

COM port options of the
unit.

Management support of
the unit through SNMP
and Telnet (Telnet is for
STU-C only).

Options (Ta b le A -1 0 )



SNMP NMS Security Options
(Table A-11)



SNMP Traps Options (Tab le A -1 2)

3-10 September 2004 7990-A2-GB20-20

Configuration Loader

3. Initial Startup and Configuration

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/configuration/config_loader
Model: 799x

CONFIGURATION LOADER

Configuration File Name:
TFTP Server IP Address: 000
TFTP Transfer Direction: Download from Server
Destination: DSL

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 M

.000.000.000 Clear

Clear

ainMenu Exit

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

— DOS machine: If the TFTP server is hosted by a DOS machine, then

— UNIX machine: If your server is hosted by a UNIX machine, the

— MCP FFS: When uploading configuration files to the MCP FFS, the

7990-A2-GB20-20 September 2004

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.

configuration file you name must already exist. It will not be created 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.

directory and filename must be entered, otherwise the download will fail.

3-11

3. Initial Startup and Configuration

2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP server
IP address or the MCP IP address for the MCP FFS.

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

For an MCP FFS, you must include the directory names separated by a
forward slash. For example, type: /slot_1/020322.cfg.

3. 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 or COM if the TFTP destination is the COM port (if
COM port is set to NetLink, see Table A-7, Communication Port Options, in
Appendix A, Configuration Options).

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

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 Activate new configuration? prompt and
select Yes to activate a new downloaded configuration. Press Enter.

NOTE:

Configuration option DSL Mode is not changed when a new configuration is
loaded. You must change this setting after the new configuration is activated.
See Table A-6, System Options, in Appendix A, Configuration Options.

3-12 September 2004 7990-A2-GB20-20

Saving Configuration Options

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

Procedure

To save configuration options changes:

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

3. Initial Startup and Configuration

ave key

2. Select S

ave and press Enter.

NOTE:

When Exit is selected before Save, or Save has been selected from any menu
in the Configuration/Edit branch, a Save Configuration screen appears
requiring a Yes or No response.

main/config/saveprompt
Model: 799x

SAVE CONFIGURATION

Save Changes? No

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

Command Complete

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

If you select . . . Then . . .

Yes The configuration is saved.

No The Main Menu appears and changes are not saved.

7990-A2-GB20-20 September 2004

ainMenu Exit

3-13

3. Initial Startup and Configuration

Resetting the Device

If the user interface is functional, you can perform a power-on reset of the unit from
the Control menu.

Procedure

To reset the unit from the Control menu:

1. Follow this menu selection sequence:

2. The message Are you sure? appears.

3. Enter Yes.

Main Menu → Control→ Reset Device

3-14 September 2004 7990-A2-GB20-20

Adaptive Rate Feature

The Adaptive Rate 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 by
setting the minimum DSL rate equal to the maximum DSL rate. The configuration
options are available from the DSL Interface Options screen.

Setting the DSL Line Rate

Adaptive Rate is controlled from the DSL Interface Options screen by setting the
Max DSL Rate and Min DSL Rate configuration options. These options are only
available if the unit is configured as an STU-C.

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

Main Menu→Configuration→ Current Configuration →DSL Port

main/config/dsl_interface
Model: 799x

3. Initial Startup and Configuration

DSL INTERFACE OPTIONS

Estimated Line Length: Long
Startup Margin: 0dB
Max DSL Rate: 2056 Kbps
Min DSL Rate: 2056
EIA-530 Payload Rate: 2048
Remotely Initiated Loopback: Enable
Peer IP Address: 135.090.025.001 Clear

Circuit Identifier:

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

ave

S

Kbps
Kbps

Clear

ainMenu Exit

To enable Adaptive Rate, set the Min DSL Rate to a value lower than the Max DSL
Rate setting. For Fixed Rate, set the Min DSL Rate equal to the Max DSL Rate. If
the TDM SHDSL endpoint cannot train at minimum DSL rate set, an alarm will be
generated. See DSL Interface Options in Appendix A, Configuration Options, for
more information.

7990-A2-GB20-20 September 2004

3-15

3. Initial Startup and Configuration

Downloading Firmware

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

Main Menu→ Control →Download Code

main/control/download_code
Model: 799x

DOWNLOAD CODE

Image File Name:
TFTP Server IP Address: 000
TFTP Server Destination: DSL
Immediately Apply Download: Yes
Start Transfer: No

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

.000.000.000 Clear

ainMenu Exit

Clear

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 (required when
accessing the MCP FFS). The total path name length can be up to
128 characters.

2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP server
IP address or the MCP IP address for the MCP FFS.

3. Position the cursor in the TFTP Server 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 or COM if the TFTP destination is the COM
port (if COM port is set to NetLink, see Table A-7, Communication Port

Options, in Appendix A, Configuration Options).

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

3-16 September 2004 7990-A2-GB20-20

3. Initial Startup and Configuration

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 in Step 4, the Transfer Status field changes to

Completed successfully.

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

main/control/apply_download
Model: 799x

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 M

Select: Yes, No LOS at Net, Pt 1

ainMenu Exit

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 TDM SHDSL endpoint to reset.

NOTE:

The 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.

7990-A2-GB20-20 September 2004

3-17

3. Initial Startup and Configuration

3-18 September 2004 7990-A2-GB20-20

Configuring the Unit Using the Internal
Switches

Overview

You can make configuration changes through a VT100-compatible terminal and
the unit’s Configuration menus or by manually changing switches on the board.

The unit is shipped with the switchpack disabled to allow settings to be made
through the Configuration menus. To use the Configuration menus, refer to

Configuring the Unit Using Configuration Menus in Chapter 3, Initial Startup and

Configuration.

4

7990-A2-GB20-20 September 2004 4-1

4. Configuring the Unit Using the Internal Switches

Configuring the Unit Using Internal Switches

Use internal Switchpack S3 to manually configure the unit.

HANDLING PRECAUTIONS FOR

!

STATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from damage
due to electrostatic discharge (ESD) during normal operation. When
performing installation procedures, however, take proper static control
precautions to prevent damage to equipment. If you are not sure of the
proper static control precautions, contact your nearest sales or service
representative.

Procedure

To configure the unit using internal Switchpack S3:

1. Power off the unit.

2. Remove the enclosure cover:

— Use a Phillips screwdriver to remove the two screws from the top of

the unit.

— Push a flat-blade screwdriver through the slots on both sides of the

housing to free the four inner latches.

3. Locate Switchpack S3 on the circuit board using Figure 4-1, Hotwire TDM

SHDSL Endpoint Switchpack Location.

4. Set Switch 6 on Switchpack S3 to ON to enable the switchpack.

5. Set the switches to the desired configuration.

— For Model 7995, refer to Ta b le 4 -1 .

— For Model 7996, refer to Ta b le 4 -2 .

6. Replace the cover and fasten it with the two screws.

7. Power on the board to reset the unit and enable the new configuration.

4-2 September 2004 7990-A2-GB20-20

Switchpack Location

4. Configuring the Unit Using the Internal Switches

To locate Switchpack S3, refer to Figure 4-1, Hotwire TDM SHDSL Endpoint

Switchpack Location.

Rear

Switchpack

S3

678

12345

ON

678

S3

12345

ON

Front

Figure 4-1. Hotwire TDM SHDSL Endpoint Switchpack Location

03-17364

7990-A2-GB20-20 September 2004

4-3

4. Configuring the Unit Using the Internal Switches

Model 7995 Switchpack Definitions

Table 4-1, Switchpack S3 Definitions – Model 7995 shows the switches used for

configuring the Model 7995 endpoint.

Table 4-1. Switchpack S3 Definitions – Model 7995

Switch # . . .

1 Control whether the unit is an STC-C or an STU-R

2 Control enabling of either Fixed Rate or Auto Rate mode.

3, 4, 5 Select one of eight preset DSL line rates. If Auto Rate is enabled, DSL

Allows you to . . .

OFF = STU-R

ON = STU-C

OFF = Fixed Rate Mode

ON = Auto Rate Mode

Line Rate represents the Auto Rate ceiling. Valid only for a unit configured
as an STU-C.

All OFF = 2056 kbps

Switch Position

DSL Line Rate Default in Bold543

OFF OFF OFF 2056 kbps

OFF OFF ON 200 kbps

OFF ON OFF 264 kbps

OFF ON ON 392 kbps

ON OFF OFF 520 kbps

ON OFF ON 776 kbps

ON ON OFF 1032 kbps

ON ON ON 1544 kbps

Default in Bold

6 Enable or disable Switchpack S3.

OFF = Switchpack Disabled

ON = Switchpack Enabled

7, 8 Control Sync Port Data Rate – Specifies the maximum payload rate

when the DSL line rate is 200 kbps. Valid only for a unit configured as an
STU-C in Fixed Rate Mode.

Both OFF = 192 kbps

Switch Position

Sync Data Port Rate Default in Bold78

OFF OFF 192 kbps

OFF ON 128 kbps

ON ON 64 kbps

4-4 September 2004 7990-A2-GB20-20

Model 7996 Switchpack Definitions

Table 4-2, Switchpack S3 Definitions – Model 7996 shows the switches used for

configuring the Model 7996 endpoint.

Table 4-2. Switchpack S3 Definitions – Model 7996

4. Configuring the Unit Using the Internal Switches

Switch # . . .

1 Control whether the unit is an STU-C or an STU-R.

2 Control enabling of either Fixed Rate or Auto Rate mode. Valid only for a

3, 4, 5 Select one of eight preset DSL line rates. If Auto Rate is enabled, DSL

Allows you to . . .

OFF = STU-R

ON = STU-C

unit configured as an STU-C.

OFF = Fixed Rate mode

ON = Auto Rate mode

Line Rate represents the AutoRate ceiling. Valid only for a unit configured
as an STU-C.

All OFF = 2056 kbps

Switch Position

DSL Line Rate Default in Bold543

OFF OFF OFF 2056 kbps

OFF OFF ON 200 kbps

OFF ON OFF 264 kbps

OFF ON ON 392 kbps

ON OFF OFF 520 kbps

ON OFF ON 776 kbps

ON ON OFF 1032 kbps

ON ON ON 1544 kbps

Default in Bold

6 Enable or disable Switchpack S3.

7 Determines whether G.704 Framing is used. Applies only to an STU-C.

8 Determines whether Channel 16 contains signaling information (voice

.

7990-A2-GB20-20 September 2004

OFF = Switchpack Disabled

ON = Switchpack Enabled

OFF = Framed

ON = Unframed (Applies only when DSL line rate is 2056 kbps.)

mode) or data. Applies only to an STU-C configured for G.704 framing.

OFF = Channel 16 used for signaling

ON = Channel 16 used for data

4-5

4. Configuring the Unit Using the Internal Switches

4-6 September 2004 7990-A2-GB20-20

Security

Overview

5

Security on the Hotwire TDM SHDSL endpoint is implemented by limiting user
access to the ATI through option settings. You can:

 Enable the Telnet Login Required option.

 Enable the COM port Login Required option.

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

Telnet session.

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

COM port.

 Disable Telnet access with the Telnet Session option.

See Table A-7, Communication Port Options, and Table A-8, Telnet Session

Options, in Appendix A, Configuration Options.

7990-A2-GB20-20 September 2004 5-1

5. Security

ATI Access Levels

The unit has two access levels: Administrator and Operator. The access level
determines what functions are accessible, as shown in Table 5-1, Access Levels.

Table 5-1. 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 levels can be applied to Login IDs, the COM port, and Telnet sessions. The
effective access level is always the most restrictive:

 When access is through the COM port and a login is required on the COM

port, the effective access level is the more restrictive of the COM port access
level or the login access level. (See Table A-7, Communication Port Options, in
Appendix A, Configuration Options.)

 When access is through Telnet and a login is required for a Telnet session, the

effective access level is the more restrictive of the Telnet session access level
or the login access level. (See Table A-8, Telnet Session Options, in
Appendix A, Configuration Options.)

When an access level of Operator is applied to the COM port and Telnet
sessions, a Login ID with Administrator authority is effectively reduced to
Operator. It is no longer possible to change configuration options, and full access

can only be restored by reloading factory defaults. (See Resetting the Unit’s COM

Port or Factory Defaults on page 5-5.)

5-2 September 2004 7990-A2-GB20-20

Creating a Login

Logins apply to the terminal directory connected to the communication port or
Telnet access directly to the ATI of the unit.

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

Procedure

5. Security

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

Main Menu → Control→ Administer Logins

main/control/admin_logins
Model: 799x

ADMINISTER LOGINS Page 1 of x

Login ID: newuser
Password: ********
Access Level: Administrator

-------------------------------------------------------------------------------­ ESC for previous menu M

ave New Delete

S

2. Select N

main/control/admin_logins/entry
Model: 799x

LOGIN ENTRY

Login ID: newuser2
Password: es342
Re-enter Password: es342
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 M

ave

S

ew and press Enter. The Login Entry screen appears.

ainMenu Exit

ainMenu Exit

7990-A2-GB20-20 September 2004

5-3

5. 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 characters that can consist of 0–9,

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

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

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

Access Level 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 screen function key 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 2 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 PgU
until you find the one to be deleted.

3. Once the correct record is displayed, select Del

p or PgDn and press Enter to page through login pages / records

ete and press Enter.

4. To complete the delete action, select S

When the deletion is complete, Command Complete appears at the bottom of
the screen. The number of login pages /records reflects one less record, and
the record following the deleted record appears.

5-4 September 2004 7990-A2-GB20-20

ave and press Enter.

Resetting the Unit’s COM Port or Factory Defaults

The user interface can be rendered inaccessible with a faulty configuration. Two
methods can be used to restore it:

 Reset COM Port – Allows you to reset the configuration options related to

COM port usage. It also causes a device reset, where the TDM SHDSL
endpoint performs a Device Self-Test. No security-related configuration
options are changed.

 Reload Factory Defaults – Allows you to reload the Default Factory

Configuration, resetting all of the configuration and control settings which
causes the current configuration to be destroyed and a device reset. This
method is also useful when the user’s password(s) have been forgotten.

Procedure

To reset COM port settings:

1. At a terminal directly connected to the unit’s COM port, configure the terminal
to operate at 9.6 kbps, using a character length of 8 bits, with one stop bit, and
no parity.

5. Security

2. Reset the unit, then immediately and repeatedly press Enter at a rate of at
least once per second until the System Paused screen appears.

3. Tab to the desired method, and enter yes (or y) for the selected prompt.

If entering yes to prompt . . . Then . . .

Reset COM Port usage

Reload Factory Defaults Yes (or y) will restore all factory-loaded



Port type is set to Terminal.



Data Rate (kbps) is set to 9.6.



Character Length is set to 8.



Stop Bits is set to 1.



Parity is set to None.

configuration, and control settings contained in the
Default Factory Configuration area are loaded.

If no (or n) is entered, or if no selection is made within 30 seconds, the unit
returns to the condition or operation it was in when the system reset was
initiated, with the COM port rate returning to its configured rate.

The endpoint resets itself, going through a self-test. Connectivity is restored
and the Main Menu screen appears.

7990-A2-GB20-20 September 2004

5-5

5. Security

Controlling SNMP Access

There are three methods for limiting SNMP access:

 Disable the SNMP management option. Refer to Table A-10, General SNMP

Management Options, in Appendix A, Configuration Options.

 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:

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

Refer to Table A-10, General SNMP Management Options, in Appendix A,
Configuration Options, to:

 Enable SNMP Management.

 Assign the SNMP community names of the SNMP Managers that are allowed

to access the unit’s Management Information Base (MIB).

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

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-11, SNMP NMS Security Options, in Appendix A, Configuration
Options. The SNMP access can be limited by:

 Enabling NMS IP address checking.

 Add each IP address and access level (limit of 10).

NOTES:

— Do not change or delete the IP address or access level of the NMS

— The SNMP NMS Security Options screen is not available if the unit is

5-6 September 2004 7990-A2-GB20-20

performing the sets, or enable IP address checking prior to adding the
NMS to the table.

connected to a DSLAM card running in IP Conservative mode.

Monitoring and Troubleshooting

What to Monitor

This chapter presents information on how to access and monitor Hotwire TDM
SHDSL endpoints. You can monitor a unit’s operations by referencing the following
sections:

 Viewing System and Test Status on page 6-2

— Health and Status Messages

— Self-Test Results Messages

— Test Status Messages

6

 Entry Response Messages on page 6-8

 Viewing DSL Error Statistics on page 6-10

 Viewing DSL Performance Statistics on page 6-12

 Viewing G.703 Performance Statistics (Model 7996) on page 6-14

 Viewing Current DSL Performance on page 6-16

 Using the Display LEDs Screen on page 6-18

 Front Panel LEDs on page 6-19

 Viewing Identity Information on page 6-20

Table 6-6, Troubleshooting, includes suggested actions for correction and

recovery.

7990-A2-GB20-20 September 2004 6-1

6. Monitoring and Troubleshooting

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
Model: 799x

SYSTEM AND TEST STATUS Page 1 of 1

HEALTH AND STATUS SELF-TEST RESULTS TEST STATUS

System Operational Passed No Test Active

-------------------------------------------------------------------------------­ ESC for previous menu M

p PgDn

PgU

ainMenu Exit

The System and Test Status screen has three sections:

 Health and Status – Displays messages in priority order (highest to lowest).

Refer to Table 6-1, Health and Status Messages.

 Self-Test Results – Results of the Diagnostic test run on the device itself.

Refer to Table 6-2, Self-Test Results Messages.

 Test Status – Currently active tests. Refer to Table 6-3, Test Status

Messages.

6-2 September 2004 7990-A2-GB20-20

Health and Status Messages

The messages in Table 6-1, Health and Status Messages, can 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 6-1. Health and Status Messages (1 of 3)

Message What Message Indicates What To Do

6. Monitoring and Troubleshooting

AIS at G.703 An Alarm Indication Signal

(AIS) is being received by the
G.703 interface.

DeviceFailed yyyyyyyy An internal error has been

detected by the operating
software. yyyyyyyy indicates
the 8-digit hexadecimal
failure code.

Download Failed A firmware download was

interrupted.

DSL Attenuation
Threshold

DSL CRC Threshold The number of counted

DSL ES Threshold The number of errored

The attenuation value for the
DSL interface has fallen
below the configured
threshold.

CRCs for the DSL interface
has exceeded the configured
threshold.

seconds for the DSL interface
has exceeded the configured
threshold.

A fault exists in the network
connected to the G.703 port.
Contact network provider.

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

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

Repeat the download.

1. Reconfigure the unit to a
lower DSL Attenuation
Threshold.

2. Contact network provider.

1. Reconfigure the unit to a
higher DSL CRC Threshold.

2. Contact network provider.

1. Reconfigure the unit to a
higher DSL ES Threshold.

2. Contact network provider.

DSL LOSW Threshold A Loss of Sync Word defect

DSL Margin Threshold The signal-to-noise margin

DSL SES Threshold The number of severely

DSL UAS Threshold The number of unavailable

7990-A2-GB20-20 September 2004

is present for at least 2.5
seconds.

has dropped below the
configured threshold.

errored seconds for the DSL
interface has exceeded the
configured threshold.

seconds for the DSL interface
has exceeded the configured
threshold.

Contact network provider.

1. Reconfigure the unit to a
lower DSL Margin Threshold.

2. Contact network provider.

1. Reconfigure the unit to a
higher DSL SES Threshold.

2. Contact network provider.

1. Reconfigure the unit to a
higher DSL UAS Threshold.

2. Contact network provider.

6-3

6. Monitoring and Troubleshooting

Table 6-1. Health and Status Messages (2 of 3)

Message What Message Indicates What To Do

EER at G.703 An EER (Excessive Error

Rate) condition has been
detected on the G.703
interface.

LOF at G.703 An LOF (Loss Of Frame)

condition has been detected
on the G.703 interface.

LOS at G.703 A LOS (Loss Of Signal)

condition has been detected
on the G.703 interface.

LOS at DSL An LOS (Loss Of Signal)

condition has been detected
on the DSL port when the
DSL transceiver is not in
Data mode.

1. Verify the attached
equipment coding is
compatible.

2. Verify your clock
configuration.

3. Contact network provider.

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

2. Verify the unit’s line framing
and line coding are
compatible with the attached
equipment.

3. Contact network provider.

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

2. Contact network provider.

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

2. Verify proper STU-C and
STU-R configuration.

3. Contact network provider.

Net Com Link Down The Network communication

link is down.
Communications between
the management system and
the unit is not possible.

Primary Clock Failed A failure has occurred in the

primary clock source for the
G.703 port. Timing is being
supplied by the internal clock.

RAI (Remote Alarm
Indication) at G.703

A Remote Alarm Indication
signal is being received by
the G.703 interface.

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

2. Verify the link protocol for the
COM port is configured
correctly.

3. Verify that no tests are
active.

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

2. Verify the clock configuration
of the unit and the attached
equipment.

3. Contact network provider.

1. Verify that the units line
framing and line coding are
compatible with the attached
equipment.

2. Contact network provider.

6-4 September 2004 7990-A2-GB20-20

6. Monitoring and Troubleshooting

Table 6-1. Health and Status Messages (3 of 3)

Message What Message Indicates What To Do

Remote Unit Power Off The remote unit has lost

power (last gasp).

STU-R TS16 Not
Supported

System Operational There are no problems

The STU-C is configured for
TS16 signaling (Voice mode)
and the STU-R is not
configured to support TS16
signaling.

detected.

Contact network provider.

1. Verify endpoint is a G.703
product. EIA-530-A products
do not support signaling.

2. Replace endpoint or
reconfigure TS16 to data.

No action is needed.

7990-A2-GB20-20 September 2004

6-5

6. Monitoring and Troubleshooting

Self-Test Results Messages

Table 6-2, Self-Test Results Messages, lists the results of the last power-up or

reset self-test that appear in the middle column of the System and Test Status
screen.

Table 6-2. Self-Test Results Messages

Message What Message Indicates What To Do

CPU Failed The CPU failed internal

testing.

DataPath Failed The unit failed to loop data

between the G.703 Port and
the DSL loop.

Device Failed One or more of the unit’s

integrated circuit chips failed
device-level testing.

Failure xxxxxxxx An internal failure occurred.

(xxxxxxxx represents an
8-digit hexadecimal failure
code for use by service
personnel.)

G.703 Failed The unit failed to loop data on

the G.703 circuit.

Memory Failed The unit failed memory

verification.

1. Reset the unit and try again.

2. Call your service
representative for
assistance.

1. Reset the unit and try again.

2. Call your service
representative for
assistance.

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.

1. Reset the unit and try again.

2. Call your service
representative for
assistance.

Passed No errors were detected. No action is needed.

6-6 September 2004 7990-A2-GB20-20

Test Status Messages

6. Monitoring and Troubleshooting

The Test Status messages in Table 6-3, Test Status Messages, appear in the right
column of the System and Test Status screen.

Tabl e 6- 3 . Tes t S ta t us Me s sa ge s

Test Status Message Meaning

511 Test Active A Send and Monitor 511 test is active on the DSL interface.

DCLB Test Active A Data Channel Loopback test is active.

DLB Test Active A DTE Loopback test is active.

DTLB Test Active A Data Terminal Loopback test is active.

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

to light.

LLB Test Active A network Line Loopback test is active.

No Test Active No tests are currently running.

Remote DCLB Dn Active A Remote Data Channel Loopback Down command is being

sent.

Remote DCLB Up Active A Remote Data Channel Loopback Up command is being sent.

Remote LLB Dn Active A Remote Line Loopback Down command is being sent.

Remote LLB Up Active A Remote Line Loopback Up command is being sent.

RLB Test Active A Repeater Loopback test is active.

For further information on testing, refer to Chapter 7, Testing .

7990-A2-GB20-20 September 2004

6-7

6. Monitoring and Troubleshooting

Entry Response Messages

The messages in Table 6-4, Entry Response Messages, can appear in response
to commands or during data entry. They appear in the messages area at the
bottom of the ATI screen and are listed in alphabetical order.

Table 6-4. Entry Response Messages (1 of 2)

Device Message What Message Indicates What To Do

0.0.0.0 is an invalid
IP address

Access level is
Operator.
Configuration is
read-only.

Cannot Save – no
Login IDs with Access
Administrator

Command Complete Action requested has

Invalid Character A nonprintable ASCII

Invalid – Data Terminal
Initiated Loopback
Active

Invalid entry at cursor Invalid IP address for this

An IP address of all zeros
was entered.

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

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

successfully completed.

character has been entered.

Network-initiated loopback
was in progress when the
selection was made.

function.

Enter a valid, non-zero
IP address.

If configuration options are to be
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.

Reenter the information using
valid characters.

No action is needed.

Enter a valid IP address. See the
appropriate table in Appendix A,

Configuration Options, to

determine the permitted address
range for this field.

Invalid Password Login is required and an

Invalid – [Test] Already
Active

Invalid Test
Combination

6-8 September 2004 7990-A2-GB20-20

incorrect password or Login
ID was entered; access is
denied.

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

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



Enter the correct Login ID
and password combination.



Contact your system
administrator to verify your
Login ID and password.



Allow the test to continue.



Select another test.



Stop the test.



Wait until the other test ends.



Abort all tests from the Test
menu screen.



Stop the test from the same
screen from which the test
was started.

6. Monitoring and Troubleshooting

Table 6-4. Entry Response 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 selected from the
Administer Login screen, and
no security records had been
defined.

Password Matching
Error – Re-enter
Password

Password entered in the
Reenter Password field of the
Administer Logins screen
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. Reenter the new login ID.



No action is needed.



Enter a security record.

Try again.

Wait until the message clears.



Contact the service provider
if test initiated by the network.



Wait until the other test ends
and the message clears.



Cancel all tests from the Test
screen.



Stop the test from the same
screen from which the test
was started.

7990-A2-GB20-20 September 2004

6-9

6. Monitoring and Troubleshooting

Viewing DSL Error Statistics

The unit maintains error statistics on the DSL interface.

Statistics are maintained for up to 96 15-minute intervals (24 hours).

To view the DSL Error Statistics, follow this menu selection sequence:

Main Menu→ Status→ Performance Statistics→ DSL Error Statistics

main/status/performance/dsl_error
Model: 799x
DSL ERROR STATISTICS

Current Interval Timer: 002

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

---ES--- ---SES--- --UAS--- --LOSW---
Near Far Near Far Near Far Near Far
Current Int: 000 000 000 000 000 000 000 000
Interval 01
Interval 02 000 000 000 000 000 000 000 000
Interval 03 000 000 000 000 000 000 000 000
Interval 04
Interval 05 000 000 000 000 000 000 000 000
Interval 06 000 000 000 000 000 000 000 000
Interval 07

000 000 000 000 000 000 000 000

000 000 000 000 000 000 000 000

000 000 000 000 000 000 000 000

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

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

p PgDn ClrNear ClrFar

PgU

Select PgU

Select ClrN

p or PgDn to view more statistics.

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

ainMenu Exit

6-10 September 2004 7990-A2-GB20-20

6. Monitoring and Troubleshooting

DSL Error Statistics are collected for:

 ES (Errored Seconds): Seconds during which one or more Cyclic

Redundancy Check (CRC) errors or Loss of Sync Word (LOSW) defects has
occurred. Maximum value is 900.

 SES (Severely Errored Seconds): Seconds during which 50 or more CRC

anomalies or one or more LOSW defects has occurred. Maximum value
is 900.

 UAS (Unavailable Seconds): Seconds during which the SHDSL line is

unavailable. The SHDSL line becomes unavailable after 10 contiguous
Severely Errored Seconds. Maximum value is 900.

 LOSW (Loss of Sync Word Seconds): Seconds during which the SHDSL

line had a Loss of Sync Word defect. Maximum value is 900.

Use the virtual function keys to page through the intervals and clear statistics.

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 is reset every 15 minutes.

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

Interval xx Historical performance data for up to 96 15-minute intervals

(24 hours).

Worst Interval The number of the interval with the worst (highest) performance

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

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

7990-A2-GB20-20 September 2004

6-11

6. Monitoring and Troubleshooting

Viewing DSL Performance Statistics

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

To view the DSL Performance Statistics, follow this menu selection sequence:

Main Menu→ Status→ Performance Statistics→ DSL Performance Statistics

main/status/performance/dsl_perf
Model: 799x
DSL PERFORMANCE STATISTICS
Payload Rate: 1536 Kbps
Current Interval Timer: 2 DSL Line Rate: 1552 Kbps

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

--MrGn-- --XmtPw- --Atten--
Near Far Near Far Near Far
Current Int: +02 +01 +13 +03 +03
Interval 01
Interval 02
Interval 03
Interval 04
Interval 05
Interval 06
Interval 07

+02 +00 +13 +03 +03
+02 +01 +13 +03 +03
+02 +01 +13 +03 +03
+02 +01 +13 +03 +03
+02 +01 +13 +03 +03
+02 +01 +13 +03 +03
+02 +01 +13 +03 +03

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

p PgDn

PgU

Select PgU

p or PgDn to view more statistics.

ainMenu Exit

6-12 September 2004 7990-A2-GB20-20

6. Monitoring and Troubleshooting

DSL Performance Statistics are collected for:

 MrGn: The margin level calculated from the Signal to Noise Ratio (SNR)

measured minus the SNR reference. The SNR reference is the value needed
to maintain a bit error rate of 10

 XmtPw: The transmit power level in dBm.

 Atten: Attenuation. This is the number of dB that the signal is below a

-7

.

reference point.

Use the virtual function keys to page through the intervals and clear statistics.

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.

Payload Rate The Payload Rate across the DSL interface.

DSL Line Rate The rate of the DSL line. The line rate can be 200–2304 kbps in

64 kbps increments.

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

Interval xx Historical performance data for up to 96 15-minute intervals

(24 hours) where the value of xx is from 01 to 96.

7990-A2-GB20-20 September 2004

6-13

6. Monitoring and Troubleshooting

Viewing G.703 Performance Statistics (Model 7996)

G.703 performance statistics allow you to monitor the current status of the G.703
interface operations. 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).

To view the Network Performance Statistics, follow this menu selection sequence:

Main Menu→ Status→ Performance Statistics→ G.703 Performance Statistics

main/status/performance/G.703
Model: 7996
G.703 PERFORMANCE STATISTICS

Current Interval Timer: 004 Error Events Counter: 012

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

--ES-- --UAS-- --SES-- --BES-- --CSS-- --LOF-- -Status-

Current Int: 000 000 000 000 000 000 Y
Interval 01
Interval 02
Interval 03
Interval 04
Interval 05
Interval 06
Interval 07

Worst Interval: 24 14 14 09 18 12
Tot (valid 96): 00010 00000 00000 00000 0020 0000

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

p PgDn ClrStats

PgU

Select PgU

Select ClrS

000 000 000 000 000 000 none
000 000 000 000 000 000 none
000 000 000 000 000 000 none
000 000 000 000 000 000 none
000 000 000 000 000 000 none
000 000 000 000 000 000 none
000 000 000 000 000 000 none

ainMenu Exit

p or PgDn to view the next or previous seven intervals.

tats to clear all statistics to zero.

G.703 Performance Statistics are collected for:

 ES (Errored Seconds): Seconds during which one or more CRC errors has

occurred (as defined in G.826, section 4.1.1). Maximum value is 900.

 UAS (Unavailable Seconds): Seconds during which service is unavailable.

UAS is received at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES. Maximum value is 900.

 SES (Severely Errored Seconds): Seconds during which 805 or more CRC

errors, more than 16 Frame Alignment Signal (FAS) errors, or at least one
Loss of Signal (LOS) or Alarm Indication Signal (AIS) has occurred. Maximum
value is 900.

 BES (Bursty Errored Seconds): 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 805 CRC errors (CRC Mode) or more than one
but less than 16 FAS errors (non-CRC mode). Maximum value is 900.

6-14 September 2004 7990-A2-GB20-20

6. Monitoring and Troubleshooting

 CSS (Controlled Slip Seconds): Seconds during which one or more

controlled slips (as defined in TR 54016) occurred.

 LOF (Loss of Frame Seconds): Contains the number of seconds that contain

one or more LOF events. Maximum value is 900.

 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 received at the G.703 interface

— L: Loss of signal detected at the G.703 interface

— E: Excessive error rate threshold exceeded

— F: Frame synchronization bit error detected

— V: Line code violation detected

— None: No significant events have occurred

Use the virtual function keys to page through the intervals and clear statistics.

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.

Error Events Counter A running total of CRC and OOF events. Total range = 0–65535.

Counter resets when the statistics are cleared.

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

Interval xx Historical performance data for up to 96 15-minute intervals

(24 hours) where the value of xx is from 01 to 96.

Worst Interval The number of the interval with the worst (highest) performance

data. If two or more intervals are equal, the oldest interval is
displayed.

Tot A 24-hour running total.

7990-A2-GB20-20 September 2004

6-15

6. Monitoring and Troubleshooting

Viewing Current DSL Performance

Current DSL Performance Statistics provides a snapshot of the performance of the
DSL port. These are the same values displayed for the current interval the DSL
Error Statistics screen (see Viewing DSL Error Statistics on page 6-10) and the
DSL Performance Statistics screen (see Viewing DSL Performance Statistics on
page 6-12).

To view the Current DSL Performance, follow this menu selection sequence:

Main Menu→ Status→ Performance Statistics→ Current DSL Performance

main/status/performance/current
Model: 799x
CURRENT DSL PERFORMANCE STATISTICS
Payload Rate: 1536 Kbps
Current Interval Timer: 2 DSL Line Rate: 1552 Kbps

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

Near End Far End
Margin 02 03
Attenuation 00 00
Tx Power 13

ES 000 000
SES 000 000
UAS 000 000
LOSWS 000 000

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

p PgDn

PgU

Select PgU

p or PgDn to view more statistics.

ainMenu Exit

Current DSL Performance Statistics are collected for:

 Margin: The margin level calculated from the Signal to Noise Ratio (SNR)

measured minus the SNR reference. The SNR reference is the value needed
to maintain a bit error rate of 10

-7

.

 Attenuation: The number of dB that the signal has fallen below a reference

point.

 Tx Power: The transmit power level.

The following Current DSL Performance Statistics are collected for the selected
port:

 ES (Errored Seconds): Seconds during which one or more CRC errors has

occurred (as defined in G.826, section 4.1.1). Maximum value is 900.

 SES (Severely Errored Seconds): Seconds during which 805 or more CRC

errors, more than 16 Frame Alignment Signal (FAS) errors, or at least one
Loss of Signal (LOS) or Alarm Indication Signal (AIS) has occurred. Maximum
value is 900.

6-16 September 2004 7990-A2-GB20-20

6. Monitoring and Troubleshooting

 UAS (Unavailable Seconds): Seconds during which service is unavailable.

UAS begins at the start of 10 consecutive SES and cleared at the start of
10 seconds with no SES. Maximum value is 900.

 LOSWS (Loss Of Sync Word Seconds): Seconds during which the SHDSL

line had a Loss of Sync Word defect. Maximum value is 900.

Fields on this screen include:

Field . . . Contains . . .

Current Interval
Timer

Payload Rate The rate of data transfer.

DSL Line Rate The rate of the DSL line.

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.

7990-A2-GB20-20 September 2004

6-17

6. Monitoring and Troubleshooting

Using the Display LEDs Screen

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

There are three classes of LEDs:

 The SYSTEM LEDs display the status of the unit

 The SYNC Port (Model 7995)/G.703 (Model 7996) LED provides the status of

the DTE interface

 The DSL Loop LED displays the activity on the DSL interface

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

Main Menu→ Status→ Display LEDs

main/status/leds
Model: 799x

DISPLAY LEDs

SYSTEM [DTE Interface] DSL LOOP

-------------------------------------------------------------------------------­ ALARM Off On-Link Up On-Link Up
TEST Off

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

ainMenu 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 6-19.

6-18 September 2004 7990-A2-GB20-20

Front Panel LEDs

Table 6-5, Front Panel LEDs, describes the meaning and states of the LEDs on the

front panels. The following illustration shows the Hotwire 7995 TDM SHDSL front
panel.

Table 6-5. Front Panel LEDs

TM

®

7995 TDM SHDSL

POWER

ALARM

6. Monitoring and Troubleshooting

TEST

DSL

DTE

01-17053

Label Color LED is . . .*

POWER Green On

Off

Slow Cycling

ALARM Red On

Off

TEST Yellow On

Off

Slow Cycling

DSL Green On

Off

Slow Cycling

DTE (7995)
G.703 (7996)

Green On

Off

Slow Cycling

Fast Cycling

Indicating . . .

Normal operation.

No power to the unit.

Unit is in minimum mode and a download is
required.

Device failure, or self-test has failed.

Self-test passed.

Loopback test in progress.

No tests in progress.

Self-test in progress.

DSL link is up.

The DSL link is down.

DSL training in progress.

DTE port is operational.

DTE: No signal on port or configured DTR or
RTS are not active.

G.703: No signal on port.

G.703: Remote Alarm Indication received.

G.703: OOF, LOF, EER, or AIS condition

received.

* 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.

7990-A2-GB20-20 September 2004

6-19

6. Monitoring and Troubleshooting

Viewing Identity Information

To view device identity information, follow this menu selection sequence:

Main Menu→ Status→ Identity

main/status/identity
Model: 7996

IDENTITY

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

Model Number: 7996-B1-088
Serial Number: 1234567
Software Revision: 05.00.02
Hardware Revision: 5264-80A
DSL Software Revision: R1.7
DSL Hardware Revision: 01.00
DSL Line Code: SHDSL

-------------------------------------------------------------------------------­ ESC for previous menu M

ainMenu Exit

Use the Right and Left Arrow keys to scroll if more than 40 characters per field
have been entered.

The following information displayed on the Identity screen has been entered on the
Change Identity screen (see Entering Identity Information in Chapter 3, Initial
Startup and Configuration):

 System Name: The general SNMP system name.

 System Location: The physical location of the SNMP-managed device.

 System Contact: Identification information, such as contact name, phone

number, or mailing address.

The following information displayed in the Identity screen is stored in the device:

 Model Number: The 9-character model number of the device representing the

product family, model, and feature.

 Serial Number: The 7-digit serial number of the device.

 Software Revision: The 6-digit software revsion level of the firmware installed

in the device.

 Hardware Revision: System Name: The 7-digit digit hardware revision level

of the main circuit card assembly in the device.

 DSL Software Revision: The 3-digit software revsion level of the DSL

transceiver installed in the device.

6-20 September 2004 7990-A2-GB20-20

Troubleshooting

6. Monitoring and Troubleshooting

 DSL Hardware Revision: The 3-digit hardware revsion level of the DSL

transceiver installed in the device.

 DSL Line Code: Displays SHDSL as the type of line code the device is using.

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

Table 6-6. Troubleshooting (1 of 2)

Symptom Possible Cause Solutions

ALARM LED is on. One of several alarm

conditions exists. Health and
Status displays the alarm
condition.

An LED is not lit that
should be lit.

Cannot access the
via the ATI.

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

LED is burned out.

unit

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.

Refer to Table 6-1, Health and

Status Messages, for a

recommended action.



Use Table 6-5, Front Panel

LEDs, to determine the

correct behavior of the LEDs.



Run the Lamp test. If the
LED in question does not
flash with the other LEDs,
then contact your service
representative.



Check the cable and
connections.



Ensure the unit is configured
properly. Verify IP address
and communication port
usage.



Reset the unit.



Reset the unit.



Contact your service
representative.

7990-A2-GB20-20 September 2004

6-21

6. Monitoring and Troubleshooting

Table 6-6. Troubleshooting (2 of 2)

Symptom Possible Cause Solutions

No power, or the LEDs
are not lit.

The power cord is not
securely plugged into the wall
receptacle or into the rear
panel connection.

The wall receptacle has no
power.

Power supply has failed. Replace power supply.

Not receiving data. The network or data port

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).

Check that the power cord is
securely attached at both ends.



Check the wall receptacle
power by plugging in some
equipment that is known to
be working.



Check the power switch on
the unit’s rear panel.



Check the circuit breaker.



Verify that your site is not on
an energy management
program.



Check network and data port
cables.



Run loopback tests. Refer to

Chapter 7, Tes ti ng .

Stop the test or wait for the test
to end.

Power-On Self-Test
fails. Only POWER and
ALARM LEDs are on
after power-on.

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

on.

The far-end unit is running

Stop the far-end test.

atest.

An alarm condition exists in
the far-end unit.

The unit has detected an
internal hardware failure.

Check the far-end Health and
Status messages.



Reset the unit and try again.



Contact your service
representative.

6-22 September 2004 7990-A2-GB20-20

Testing

Accessing the Test Menu

From the Test menu, you can run the following tests:

 DSL tests to start and stop tests on the DSL interface (Model 7995 only)

 DSL & G.703 tests to start and stop tests on the DSL and G.703 interface

(Model 7996 only)

 Sync data port tests to start and stop tests on the Sync port interface

(Model 7995 only)

 Send and monitor 511 pattern tests

7

 Device tests to start and stop the lamp test

You can also use the Test menu to abort all tests.

To access the Test menu, follow this menu selection sequence:

Main Menu→ Te st

main/test
Model: 799x

TEST

DSL Tests (Model 7995)
DSL & G.703 Tests (Model 7996)
SYNC Data Port Tests (Model 7995)
Device Tests

Abort All Tests

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

ainMenu Exit

7990-A2-GB20-20 September 2004 7-1

7. Testing

Running DSL Tests

DSL tests require the participation of your network service provider. To access the
DSL Tests screen, follow this menu selection sequence:

main/test/dsl

Model: 7995

DSL TESTS

Test Command Status Results

-------------------------------------------------------------------------------­Local Loopbacks
DSL Line Loopback: Start Inactive 00:00:00

Model 7995:

Main Menu→ Te st → DSL Tests

Model 7996:

Main Menu→ Te st → DSL & G.703 Tests

Remote Loopbacks
Send Line Loopback: Down

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

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

esetMon

R

main/test/dsl_G.703
Model: 7996

DSL & G.703 TESTS

Test Command Status Results

-------------------------------------------------------------------------------­Local Loopbacks
DSL Loopback: Start Inactive 00:00:00
G.703 Repeater Loopback: Start Inactive 00:00:00
G.703 DTE Loopback: Start Inactive 00:00:00

Remote Loopbacks
Send Line Loopback: Down

Send Inactive 00:00:00

ainMenu Exit

Send Inactive 00:00:00

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

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

esetMon

R

7-2 September 2004 7990-A2-GB20-20

ainMenu Exit

DSL Line Loopback

7. Testing

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 column displays the test duration.

NOTE:

Send and Monitor 511 is not available in all software releases. When the test
is not available, Test Not Currently Supported is displayed when an attempt is
made to start the test.

A DSL Line Loopback loops the received signal on the DSL port back to the DSL
port without change.

E1

DSL
Por t

FramerFramerTransceiver

LIU

AIS

G.703
Por t

03-17374

Procedure

To run a DSL Line Loopback:

1. Position the cursor at the Start command next to DSL Line Loopback on the
DSL Tests or DSL & G.703 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 and press Enter.

The DSL Line Loopback cannot be started when:

 The DSL line is down.

 A Repeater Loopback, DTE Loopback, or network-initiated Line Loopback test

is in progress.

7990-A2-GB20-20 September 2004

7-3

7. Testing

G.703 Repeater Loopback (Model 7996)

A G.703 Repeater Loopback (RLB) loops the signal being sent from the data port
back to the data port. AIS is sent to the DSL port.

E1

DSL
Por t

AIS

FramerFramerTransceiver

LIU

G.703
Por t

02-17131

Procedure

To run a G.703 Repeater Loopback:

1. Position the cursor at the Start command next to G.703 Repeater Loopback on
the DSL & G.703 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 and press Enter.

The G.703 Repeater Loopback cannot be started when any other loopback test is
in progress.

7-4 September 2004 7990-A2-GB20-20

G.703 DTE Loopback (Model 7996)

A G.703 DTE Loopback loops the G.703 signal back to itself, retaining bipolar
violation (BPV) transparency. Alarm Indication Signal (AIS) is sent to the DSL port
while the DTE Loopback is active.

7. Testing

E1

DSL

All Ones

Por t

FramerFramerTransceiver

LIU

G.703
Por t

02-17128

Procedure

To run a G.703 DTE Loopback:

1. Position the cursor at the Start command next to G.703 DTE Loopback on the
DSL & G.703 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 and press Enter.

The G.703 DTE loopback cannot be started when any other loopback test is
in progress.

7990-A2-GB20-20 September 2004

7-5

7. 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 into 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

E1

LIU

Framer Framer Transceiver

E1

AIS

LIU

FramerFramerTransceiver

G.703
Por t

02-17118

Procedure

To run a Remote Send Line Loopback:

1. Position the cursor at the Up or Down selection next to Send Line Loopback on
the DSL Tests or DSL & G.703 Tests screen.

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

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

4. Press Enter.

The local unit stops sending the loopback command automatically after
10 seconds. You cannot stop the Send Line Loopback test manually.

The Remote Network Send Line Loopback cannot be started when any other
loopback test is active on the DSL interface.

For the loopback to activate, the remote unit must be configured to enable
Remotely Initiated Loopback.

7-6 September 2004 7990-A2-GB20-20

Send and Monitor 511 Pattern

The Send command is used to send a test pattern over the DSL interface. This test
commands the remote unit to start sending and monitoring a 511 pattern, and then
sends and monitors a 511 pattern. Ones are sent in the time slots that are mapped
to the DSL port that is in test.

Pressing Enter after selecting the Send and Monitor 511 Pattern Start command
from the DSL & G.703 Tests menu initiates the test. The result field initially
displays hh:mm:ss - Out of Sync, where hh:mm:ss is the time that the test
has been running. The error count displays Out of Sync until the unit has detected
the 511 pattern.

Once the pattern is detected, the error count field is updated once every 10
seconds. It is displayed as a five-digit number with the maximum count being

99999.

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

Activating the Send and Monitor 511 Pattern test causes the EOC (used for
management) to be lost to the remote unit.

7. Testing

511

T1/E1

LIU

AIS

Framer Framer Transceiver

511

Gen

511

Mon

Pattern

511

Pattern

511

Mon

511

Gen

T1/E1

FramerFramerTransceiver

LIU

AIS

G.703
Por t

03-17363

Procedure

To run a Send and Monitor 511 test:

1. Allow the modem to fully train up with its partner modem for at least a minute.

2. Position the cursor at the Start command next to Send and Monitor 511 on the
DSL & G.703 Tests screen.

3. Press Enter. If the test begins successfully, the Start command is changed to
Stop. Else:

— If the DSL interface is down when Start is selected, no action is taken.

— If the unit is already sending a test pattern on the DSL interface, then

Invalid - Send Pattern Already Active appears on line 24.

— If any loopback test is active, an Invalid Test Combination error message

appears on line 24.

4. To manually stop the test, verify that the cursor is positioned at the Stop
command, and press Enter.

The result field remains until another Send test is started. The DSL interface
retrains after the test is stopped.

7990-A2-GB20-20 September 2004

7-7

7. Testing

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

esetMon virtual function key to reset the error count.

SYNC Data Port Tests (Model 7995)

To access the SYNC Data Port Tests screen, follow this menu selection sequence:

Main Menu→ Te st → SYNC Data Port Tests

main/test/data
Model: 7995

SYNC DATA PORT TESTS

Test Command Status Results

-------------------------------------------------------------------------------­Local Loopbacks
Data Terminal Loopback: Start Inactive 00:00:00
Data Channel Loopback: Start Inactive 00:00:00
Repeater Loopback: Start Inactive 00:00:00

esetMon virtual function key is available for use.

Remote Loopbacks
Send Remote DCLB: Down

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

Send Inactive 00:00:00

ainMenu Exit

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 column displays the test duration.

7-8 September 2004 7990-A2-GB20-20

Data Terminal Loopback

A Data Terminal Loopback (DTLB) loops user data back to the DTE. This loopback
is located as closely as possible to the user data port (DTE) interface.

7. Testing

DSL

All Ones

Por t

CAP

Framer

Por t

Interface

EIA-530

Por t

02-15933-02

Procedure

To run a Data Terminal Loopback:

1. Position the cursor at the Start command next to Data Terminal Loopback on
the SYNC Data Port 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 and press Enter.

The Data Terminal Loopback cannot be started when a Repeater Loopback, Line
Loopback, DCLB, or Remote DCLB is in progress on the data port.

7990-A2-GB20-20 September 2004

7-9

7. Testing

Data Channel Loopback

A Data Channel Loopback (DCLB) loops the data from the network interface back
to the network. This loopback is located as close as possible to the user data port
(DTE) interface.

DSL

Por t

CAP

Framer

Por t

Interface

All Ones

EIA-530

Por t

02-15934-02

Procedure

To run a Data Channel Loopback:

1. Position the cursor at the Start command next to Data Channel Loopback on
the SYNC Data Port 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 and press Enter.

The Data Channel Loopback cannot be started when a Line Loopback or
Repeater Loopback is active on the network interface, or a Data Terminal
Loopback is active on the data port.

7-10 September 2004 7990-A2-GB20-20

Repeater Loopback

7. Testing

A Repeater Loopback loops the signal being sent from the data port back to the
data port. AIS is sent to the DSL port.

DSL

All Ones

Por t

CAP

Framer

Por t

Interface

EIA-530

Por t

02-15933-02

Procedure

To run an EIA-530 Repeater Loopback:

1. Position the cursor at the Start command next to Repeater Loopback on the
SYNC Data Port 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 and press Enter.

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

7990-A2-GB20-20 September 2004

7-11

7. Testing

Send Remote Data Channel Loopback

The local termination unit can send an Up or Down sequence to request the start
or stop of a Data Channel Loopback (DCLB) on a remote unit.

Local Remote

DSL

Por t

Interface

Framer

CAP

CAP

Framer

Por t

Interface

All Ones

EIA-530

Por t

02-15935-02

Procedure

To send a Remote DCLB:

1. Position the cursor at the Up or Down selection next to Send Remote DCLB on
the SYNC Data Port Tests screen.

2. Press the spacebar to select the desired code (Up or Down).

3. Position the cursor at the Start command next to Send Remote DCLB on the
SYNC Data Port Tests screen.

4. Press Enter.

The Status field is changed to Sending. The Up or Down sequence
transmission stops automatically after 10 seconds. You cannot stop the
sequence manually.

For the loopback to activate, the remote unit must be configured to enable Network
Initiated Data Channel Loopback.

7-12 September 2004 7990-A2-GB20-20

Device Tests

7. Testing

The Device Tests branch is used to access the only endpoint-level test, the Lamp
Test. To access the Device Tests screen, follow this menu selection sequence:

Main Menu→ Tes t →Device Tests

main/test/card
Model: 799x

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 the Lamp Test is stopped, the LEDs are
restored to their normal condition.

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

7990-A2-GB20-20 September 2004

7-13

7. Testing

Ending an Active Test

A test initiated by the user can be ended using:

 Test Timeout option – Enable the Test Timeout system option so the unit can

automatically terminate tests, and set the Test 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-6, System Options, in Appendix A,
Configuration Options.

 Command column – Under the Command column on any test screen,

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

 Abort All Tests menu selection – Select Abort All Tests from the Test menu

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

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

7-14 September 2004 7990-A2-GB20-20

7. Testing

7990-A2-GB20-20 September 2004

7-15

7. Testing

7-16 September 2004 7990-A2-GB20-20

Configuration Options

Overview

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

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

DSL Port DSL Interface Options (Table A-1) DSL port interface on

A

the unit.

DSL Port
Threshold
Traps

SYNC Port
or

G.703

System Options System Options (Ta b l e A - 6) General system options of

Communication
Port

Management
and
Communication

DSL Port Threshold Trap Options
(Tab le A -3 )

Synchronous Data Port Options –
Model 7995 (Ta bl e A -4 )

G.703 Interface Options – Model 7996
(Tab le A -5 )

Communication Port Options
(Tab le A -7 )



Telnet Session Options (Table A-8)



Communication Protocol Options
(Tab le A -9 )



General SNMP Management
Options (Table A-10)



SNMP NMS Security Options
(Tab le A -11 )



SNMP Traps Options (Ta bl e A - 12 )

Threshold traps for the DSL
port on the unit.

Synchronous DTE interface
(Model 7995)

G.703 interface
(Model 7996)

the unit.

Unit’s COM port options.

Management support of the
unit through SNMP and
Tel ne t.

NOTE:

All changes to configuration options must be saved. Refer to Saving

Configuration Options in Chapter 3, Initial Startup and Configuration.

7990-A2-GB20-20 September 2004 A-1

A. Configuration Options

DSL Interface Options

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

Main Menu→ Configuration→ Current Configuration→ DSL Port

main/config/dsl_interface
Model: 799x

DSL INTERFACE OPTIONS

Estimated Line Length: Long
Startup Margin: 4dB
Max DSL Rate: 2056 Kbps
Min DSL Rate: 2056
EIA-530 Payload Rate: 2048
Remotely Initiated Loopback: Enable
Peer IP Address: 135.090.025.001 Clear

Kbps
Kbps

Circuit Identifier:

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

ave

S

Clear

ainMenu Exit

Table A-1. DSL Interface Options (1 of 3)

Estimated Line Length

This value is usually specified by the carrier.

Possible Settings: Short, Medium, Long
Default Setting: Short

The estimated line length is the estimated distance from the local exchange to determine
the speeds that can be supported.



Estimated Line Length appears only when DSL Mode is set to STU-C and
Spectrum Management is enabled (see Table A-6, System Options).

Short – Can support speeds up to 2056 kbps (in 64 kbps increments).

Medium – Can support speeds up to 1480 kbps (in 64 kbps increments).

Long – Can support speeds up to 840 kbps (in 64 kbps increments).

Start Up Margin

Possible Settings: 0dB – 15dB
Default Setting: 4dB

Specifies the Signal to Noise Ratio (SNR) margin a port must exceed to successfully train
up with the remote unit.

0dB – 15dB – The Start Up Margin, in 1 dB increments.

A-2 September 2004 7990-A2-GB20-20

A. Configuration Options

Table A-1. DSL Interface Options (2 of 3)

Max DSL Rate

Possible settings depend on whether Spectrum Management is enabled.

Determines the maximum speed for the DSL line when in Adaptive Rate mode (Max DSL
Rate does not equal Min DSL Rate). See Table A-2, G.703 EIA-530 Payload Rates, for
information about maximum payload rates for different DSL line rates.



Max DSL Rate appears only when DSL Mode is set to STU-C and Spectrum
Management is enabled (see Table A-6, System Options).

Min DSL Rate

Possible settings depend on whether Spectrum Management is enabled.

Determines the minimum speed of the DSL line when in Adaptive Rate mode (Max DSL
Rate does not equal Min DSL Rate). See Table A-2, G.703 EIA-530 Payload Rates, for
information about maximum payload rates for different DSL line rates.



Min DSL Rate appears only when DSL Mode is set to STU-C and Spectrum
Management is enabled (see Table A-6, System Options).

EIA-530 Payload Rate

Possible Settings: 64, 128 kbps
Default Setting: [Highest multiple of 64 kbps supported by the DSL Line Rate]

When the remote STU-R has an EIA-530-A interface, the Payload Rate set on the STU-C
determines the port speed of the synchronous port of the STU-R. Only 64 and 128 kbps
are selectable, otherwise this field is read-only. See Table A-2, G.703 EIA-530 Payload

Rates, for information about maximum payload rates for different DSL line rates.

Remotely Initiated Loopback

Possible Settings: Enable, Disable
Default Setting: Enable

Specifies whether the unit will respond to a loopback command from the STU-R.



Remotely Initiated Loopback appears only when DSL Mode is set to STU-C.

Enable – The unit will respond to a loopback command issued from the STU-R.

Disable – The unit will not respond to a loopback command issued from the STU-R.

Peer IP Address

Possible Settings: 001.000.000.000 – 223.255.255.255, Clear
Default Setting: 000.000.000.000

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



Peer IP Address appears only when DSL Mode is set to STU-C (see Ta bl e A -6 ,

System Options) and the system is IP Complex.

Address Field – (001.000.000.000 – 223.255.255.255) – Enter an address for the peer
unit. 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.

Clear – Clears the IP address field and sets to all zeros.

7990-A2-GB20-20 September 2004

A-3

A. Configuration Options

Table A-1. DSL Interface Options (3 of 3)

Circuit Identifier

Possible Settings: ASCII text field, Clear
Default Setting: [blank]

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

ASCII text field – Enter a maximum of 128 characters. All printable ASCII characters
except the ^ (caret) are allowed.

Clear – Clears the field.

A-4 September 2004 7990-A2-GB20-20

A. Configuration Options

Table A-2. G.703 EIA-530 Payload Rates

DSL Line Rate (kbps) Payload Rate N

200 64 1

200 128 2

264 192 3

328 256 4

392 320 5

456 384 6

520 448 7

584 512 8

648 576 9

712 640 10

776 704 11

840 768 12

904 832 13

968 896 14

1032 960 15

1096 1024 16

1160 1088 17

1224 1152 18

1288 1216 19

1352 1280 20

1416 1344 21

1480 1408 22

1544 1472 23

1608 1536 24

1672 1600 25

1736 1664 26

1800 1728 27

1864 1792 28

1928 1856 29

1992 1920 30

2056 2048

* At 2056 kbps, 31 timeslots supported for G.704 framing, 32 timeslots for unframed.

7990-A2-GB20-20 September 2004

* 32*

A-5

A. Configuration Options

DSL Port Threshold Trap Options

For DSL Port Threshold Trap Options, refer to Table A-3, DSL Port Threshold Trap

Options. To access the DSL Threshold Trap Options screen, follow this menu

selection sequence:

Main Menu→ Configuration→ Current Configuration→ DSL Port Threshold Traps

NOTE:

DSL Port Threshold Traps appears only when DSL Mode is set to STU-C (see

Table A-6, System Options).

main/config/dsl_trap
Model: 799x

DSL THRESHOLD TRAP OPTIONS

ES Trap Threshold: 120
SES Trap Threshold: 15
UAS Trap Threshold: 15
LOSW Trap Threshold: 0
CRC Trap Threshold: 0

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

Attenuation Trap Theshold: 15
Margin Trap Threshold: 4

A-6 September 2004 7990-A2-GB20-20

A. Configuration Options

Table A-3. DSL Port Threshold Trap Options

ES Trap Threshold

Possible Settings: 1–900, or 0 to Disable
Default Setting: 120

Specifies the threshold for Error Seconds events in a 15-minute interval after which a
trap will be sent.

SES Trap Threshold

Possible Settings: 1–900, or 0 to Disable
Default Setting: 15

Specifies the threshold for Severely Error Seconds events in a 15-minute interval after
which a trap will be sent.

UAS Trap Threshold

Possible Settings: 1–900, or 0 to Disable
Default Setting: 0

Specifies the threshold for Unavailable Seconds events in a 15-minute interval after
which a trap will be sent.

LOSW Trap Threshold

Possible Settings: 1–900, or 0 to Disable
Default Setting: 0

Specifies the threshold for Loss of Sync Word Seconds events in a 15-minute interval
after which a trap will be sent.

CRC Trap Threshold

Possible Settings: 1–900, or 0 to Disable
Default Setting: 0

Specifies the threshold for CRC events in a 15-minute interval after which a trap will be
sent.

Attenuation Trap Threshold

Possible Settings: 1–127 dB, or 0 to Disable
Default Setting: 0

Specifies the threshold for loop attenuation in a 15-minute interval after which a trap
will be sent.

Margin Trap Threshold

Possible Settings: 1–15 dB, or 0 to Disable
Default Setting: 4

Specifies the threshold for the Signal-to-Noise ratio margin in a 15-minute interval
after which a trap will be sent.

7990-A2-GB20-20 September 2004

A-7

A. Configuration Options

Synchronous Data Port Options for Model 7995

For Synchronous Data Port Options, refer to Table A-4, Synchronous Data Port

Options – Model 7995. To access the Synchronous Data Port Options screen,

follow this menu selection sequence:

Main Menu→ Configuration→ Current Configuration→ SYNC Ports

main/config/sync_data
Model: 7995

SYNCHRONOUS DATA PORT OPTIONS

Port Type: E530A
Payload Rate: 1040 Kbps
Transmit Clock Source: Internal
Invert Transmit Clock Disable
Send All Ones on Data Port Not Ready: Both
Action on Network LOS Alarm: Halt
Network Initiated Data Channel Loopback: Disable
Port (DTE) Initiated Loopbacks: Disable
Elastic Store: Enable

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

Table A-4. Synchronous Data Port Options – Model 7995 (1 of 4)

Port Type

Possible Settings: E530A, V.35, RS449, X.21
Default Setting: E530A

Determines the port type for the data port.

E530A – The port is configured as an EIA-530-A compatible DCE. An EIA-530-A
compatible DTE can be connected directly to the DB25 Port connector on the rear panel
of the unit.

V.3 5 – The port is configured as a V.35 compatible DCE. A V.35 compatible DTE can be
connected using an MS34-to-DB25 adapter cable to connect to the DB25 Port connector
on the rear panel of the unit.

RS449 – The port is configured as an RS-449 compatible DCE. An RS-449 compatible
DTE can be connected using a DB37-to-DB25 adapter cable to connect to the DB25 Port
connector on the rear panel of the unit.

X.21 – The port is configured as an X.21 compatible DCE. An X.21 compatible DTE can
be connected using a DB15-to-DB25 adapter cable to connect to the DB25 Port connector
on the rear panel of the unit.

A-8 September 2004 7990-A2-GB20-20