Paradyne Hotwire 7974 User manual

HOTWIRErM/SDSL
STANDALONE
TERMINATION UNITS
MODELS 7974-A2, 7975-A2,
AND 7976-A2
USER’S GUIDE
Document No. 7900-A2-GB21-00
August 2000

Printed on recycled paper
A 7900-A2-GB21-00
August 2000
Copyright E2000 Paradyne Corporation.
All rights reserved.
Printed in U.S.A.
Notice
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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:
HInternet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty
at www.paradyne.com/warranty.)
HTelephone: Call our automated system to receive current information by fax or to speak with a company
representative.
— Within the U.S.A., call 1-800-870-2221
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Trademarks
ACCULINK, COMSPHERE, FrameSaver, Hotwire, and NextEDGE are registered trademarks of Paradyne
Corporation. MVL, OpenLane, Performance Wizard, and TruePut are trademarks of Paradyne Corporation. All other
products and services mentioned herein are the trademarks, service marks, registered trademarks, or registered
service marks of their respective owners.

i
7900-A2-GB21-00 August 2000
Contents
About This Guide
HDocument Purpose and Intended Audience vii. . . . . . . . . . . . . . . . . . . . . . . . .
HDocument Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HProduct-Related Documents viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 About the Hotwire Standalone Termination Unit
HM/SDSL Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HHotwire Standalone Termination Unit Features 1-2. . . . . . . . . . . . . . . . . . . . . .
HNetwork Configuration 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HFront Panel LED Status Indicators 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HRear Panel Interface Connections 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSNMP Management Capabilities 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Management Information Base (MIB) Support 1-6. . . . . . . . . . . . . . . . . . .
SNMP Trap Support 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Using the Asynchronous Terminal Interface
HUser Interface Access 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCommunication Port Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HInitiating an ATI Session 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HMenu Tree 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HScreen Work Areas 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HNavigating the Screens 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard Keys 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen Function Keys 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switching Between Screen Work Areas 2-8. . . . . . . . . . . . . . . . . . . . . . . .
HEnding an ATI Session 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
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3 Initial Startup and Configuration
HOverview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConnecting Power 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting to an Optional External DC Power Source 3-2. . . . . . . . . . . .
HConnecting to the Network 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConnecting to a DTE 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConnecting to a System Terminal 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEntering Identity Information 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HChoosing a Configuration Method 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring the Unit Using the Configuration Menus 3-7. . . . . . . . . . . . . . . . .
HAccessing and Displaying Configuration Options 3-8. . . . . . . . . . . . . . . . . . . .
HConfiguration Edit/Display 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguration Loader 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSaving Configuration Options 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDownloading Code 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDisabling AutoRate 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HResetting AutoRate 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Configuring the Unit Using the Internal Switches
HOverview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring the Unit Using the Internal Switches 4-2. . . . . . . . . . . . . . . . . . . .
Switchpack Locations 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switchpack Definitions for Model 7974 4-4. . . . . . . . . . . . . . . . . . . . . . . . .
Switchpack Definitions for Model 7975 4-6. . . . . . . . . . . . . . . . . . . . . . . . .
Switchpack Definitions for Model 7976 4-9. . . . . . . . . . . . . . . . . . . . . . . . .
5 IP Addressing
HSelecting an IP Addressing Scheme 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configurations Not Running IP Conservative Software 5-1. . . . . . . . . . .
All Configurations 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIP Addressing Example 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
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7900-A2-GB21-00 August 2000
6 Security
HOverview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HATI Access Levels 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCreating a Login 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDeleting a Login 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HResetting the Unit’s COM Port or Factory Defaults 6-6. . . . . . . . . . . . . . . . . . .
HControlling SNMP Access 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assigning SNMP Community Names and Access Types 6-7. . . . . . . . . .
Limiting SNMP Access through the IP Addresses of the Managers 6-7.
7 Monitoring and Troubleshooting
HWhat to Monitor 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing System and Test Status 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Health and Status Messages 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-Test Results Messages 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Status Messages 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEntry Response Messages 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing Network Error Statistics 7-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing Network Performance Statistics 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing DSX-1 Performance Statistics
(Model 7974) 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing G.703 Performance Statistics
(Model 7976) 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HUsing the Display LEDs Screen 7-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HHotwire Standalone Termination Unit LEDs 7-18. . . . . . . . . . . . . . . . . . . . . . . . .
HTroubleshooting 7-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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8 Testing
HAccessing the Test Menu 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HRunning Network Tests 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Line Loopback 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Network Send Line Loopback 8-5. . . . . . . . . . . . . . . . . . . . . . . . .
HDSX-1 Tests (Model 7974) 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Repeater Loopback (DSX-1) 8-7. . . . . . . . . . . . . . . . . . . . . . . . . .
DSX-1 DTE Loopback 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSYNC Data Port Tests (Model 7975) 8-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Terminal Loopback 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Channel Loopback 8-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Send Remote Data Channel Loopback 8-12. . . . . . . . . . . . . . . . . . . . . . . . .
HG.703 Tests (Model 7976) 8-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Repeater Loopback (G.703) 8-14. . . . . . . . . . . . . . . . . . . . . . . . . .
G.703 DTE Loopback 8-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDevice Tests 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Test 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEnding an Active Test 8-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HTelco-Initiated Tests (Model 7974) 8-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Telco-Initiated Line Loopback 8-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Telco-Initiated Payload Loopback 8-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Telco-Initiated Remote Line Loopback 8-19. . . . . . . . . . . . . . . . . . . . . . . . . .
A Configuration Options
HOverview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HNetwork Interface Options Menu A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDSX-1 Interface Options for Model 7974 A-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
HSynchronous Data Port Options for Model 7975 A-8. . . . . . . . . . . . . . . . . . . . .
HG.703 Interface Options for Model 7976 A-11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSystem Options Menu A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCommunication Port A-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HManagement and Communication Options Menu A-19. . . . . . . . . . . . . . . . . . . .
Telnet Session Options A-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communication Protocol Options A-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General SNMP Management Options A-24. . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP NMS Security Options A-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Traps Options A-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
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7900-A2-GB21-00 August 2000
B Standards Compliance for SNMP Traps
HSNMP Traps B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HifIndex Variable Binding B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HwarmStart B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HauthenticationFailure B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HlinkUp and linkDown B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEnterprise-Specific Traps B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Cables and Pin Assignments
HOverview C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HPower Input Connector C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCOM Port Connector C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCOM Port-to-PC Cable C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCOM Port-to-LAN Adapter Cable C-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDSX-1/G.703 Network Interface C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEIA-530-A Port C-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEIA-530-A-to-X.21 Interface C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEIA-530-A-to-RS-449 Interface C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEIA-530-A-to-V.35 Interface C-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDSL Network Interface Cable C-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Technical Specifications
Glossary
Index

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vii
7900-A2-GB21-00 August 2000
About This Guide
Document Purpose and Intended Audience
This guide contains information needed to set up, configure, and operate the
Hotwire Multirate Symmetric Digital Subscriber Line (M/SDSL) Standalone
Termination Unit, Models 7974-A2, 7975-A2 and 7976-A2, and is intended for
installers and operators.
Document Summary
Section Description
Chapter 1 About the Hotwire Standalone Termination Unit. Describes
the unit’s features and capabilities.
Chapter 2 Using the Asynchronous Terminal Interface. Provides
instructions for accessing the user interface and navigating
through the screens.
Chapter 3 Initial Startup and Configuration. Provides procedures for
setting up the user interface and for configuring the unit
using the asynchronous terminal interface.
Chapter 4 Configuring the Unit Using the Internal Switches. Provides
procedures for configuring the unit using the internal
switches instead of the asynchronous terminal interface.
Chapter 5 IP Addressing. Provides information and examples
regarding IP addresses.
Chapter 6 Security. Presents procedures for creating a login, setting
the effective access levels, and controlling SNMP access.
Chapter 7 Monitoring and Troubleshooting. Describes using the LEDs,
status messages, and network statistics to monitor the unit
and detect and correct problems.
Chapter 8 Testing. Provides information about available tests and test
setup.

About This Guide
viii 7900-A2-GB21-00
August 2000
Section Description
Appendix A Configuration Options. Contains all configuration options,
possible settings, and default settings.
Appendix B Standards Compliance for SNMP Traps. Contains SNMP
trap compliance information.
Appendix C Cables and Pin Assignments. Contains connector and
interface information.
Appendix D Technical Specifications. Contains physical and regulatory
specifications, network and port interfaces, power
consumption values, and accessory part numbers.
Glossary Defines acronyms and terms used in this document.
Index Lists key terms, acronyms, concepts, and sections in
alphabetical order.
Product-Related Documents
Document Number Document Title
7900-A2-GN11 Hotwire M/SDSL Standalone Termination Units,
Models 7974-A2, 7975-A2, and 7976-A2, Installation
Instructions
8700-A2-GB20 Hotwire M/SDSL and HDSL2 Termination Units,
Models 8747, 8777, and 8779, User’s Guide
8700-A2-GB25 Hotwire M/SDSL and M/HDSL Termination Units,
Models 8775 and 8785, User’s Guide
Contact your sales or service representative to order additional product
documentation.
Paradyne documents are also available on the World Wide Web at
www.paradyne.com. Select Library →Technical Manuals.

1-1
7900-A2-GB21-00 August 2000
About the Hotwire Standalone
Termination Unit 1
M/SDSL Overview
HotwirerMultirate Symmetric Digital Subscriber Line (M/SDSL) products
maximize customer service areas by varying the DSL line rate. This ensures
symmetric DSL connectivity over a wide range of telephone line distances and
transmission line qualities.
Hotwire products support autorate. Units first synchronize to the highest line rate
that the 2-wire loop supports, and then automatically configure to the highest
multiple of 64 kbps supported by that line rate. Eight line rates are available. At all
rates, a 16 kbps management channel is available, which enables functions such
as firmware downloads to remote units. Units can also be configured manually to
full or fractional T1 or E1 rates.
Hotwire products transport data over a 2-wire (M/SDSL) full-duplex circuit over
varying distances based on the conditions of the loop. Using 24 AWG cable,
M/SDSL products have a loop reach greater than 14,000 feet (4.6 km) at
2.048 Mbps.

About the Hotwire Standalone Termination Unit
1-2 7900-A2-GB21-00
August 2000
Hotwire Standalone Termination Unit Features
The Hotwire Standalone Termination Unit is an endpoint for the chassis-mounted
Hotwire 877x Termination Unit housed in the Hotwire 8600 Series or 8800 Series
Digital Subscriber Line Access Multiplexer (DSLAM).
Two Hotwire Standalone Termination Units can also be configured to operate in a
central office line termination unit (LTU) to customer premises network
termination unit (NTU) environment.
The termination unit offers these standard features:
HEmbedded Operations Channel (EOC). Provides remote SNMP Traps,
Telnet session capability over the M/SDSL link, and download capabilities.
HAsynchronous Terminal Interface (ATI). Provides a menu-driven
VT100-compatible terminal interface for configuring and managing the
termination unit locally or remotely by Telnet session.
HLocal Management (standalone unit). Provides local management using a:
—Terminal or equivalent through the COM port of the unit
—Telnet through the COM port of the unit
HRemote Management (DSLAM card). Provides remote management using:
—VT100-compatible terminal or PC via the Management Serial port of the
DSLAM
—NMS through the MCC port of the DSLAM
—Telnet over the EOC
HAlarm Indication. Provides front panel status LEDs.
HDiagnostic Testing. Provides the capability to diagnose device and network
problems and perform digital loopbacks, pattern tests, and self-test.
HDevice and Performance Monitoring. Provides the capability of tracking
and evaluating the unit’s operation, including health and status, and error-rate
monitoring.
HSNMP (Simple Network Management Protocol) Management. Provides
network management via an industry-standard SNMP management system.
HAutomatic 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.

About the Hotwire Standalone Termination Unit
1-3
7900-A2-GB21-00 August 2000
Network Configuration
Figure 1-1 shows a network application using a termination unit in a central office
(CO). In this configuration, a frame relay switch and a router are connected
through the termination unit 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-to-standalone
configurations are shown in Table 1-1.
Table 1-1. Supported Standalone NTU/LTU Combinations
NTU (CP)
LTU (CO): DSX-1 Synchronous G.703
Framed G.703 Unframed
DSX-1 n n Not Supported Not Supported
Synchronous Not Supported nNot Supported n
G.703 Framed Not Supported n n Not Supported
G.703 Unframed Not Supported nNot Supported n
n= Supported
Frame
Relay
Switch
Router
T1 Host
(Frame Relay
Encapsulated
Data)
00-16486-01
Router
(Frame Relay
Encapsulated
Data)
Router
877x Termination Unit
in DSLAM
CO Site
797x
797x
797x
797x 797x
CP
NTU
CO Site
LTU
DSL
Customer Premises (CP)
DSL
DSL
G.703, DSX-1 or V.35
DSL
Figure 1-1. Sample Configurations

About the Hotwire Standalone Termination Unit
1-4 7900-A2-GB21-00
August 2000
Front Panel LED Status Indicators
Figures 1-2 through 1-4 show the front panel of the Hotwire Standalone
Termination Units. For more information on front panel LEDs, refer to Chapter 7,
Monitoring and Troubleshooting.
POWER ALARM TEST DSL DSX-1
98-16116
7974 M/SDSL
TM
TM
Figure 1-2. Hotwire DSX-1 Interface Termination Unit Front Panel
POWER ALARM TEST DSL DTE
98-15856
7975 M/SDSL
TM
TM
Figure 1-3. Hotwire Synchronous Interface Termination Unit Front Panel
POWER ALARM TEST DSL G.703
98-16003
7976 M/SDSL
TM
TM
Figure 1-4. Hotwire G.703 Interface Termination Unit Front Panel

About the Hotwire Standalone Termination Unit
1-5
7900-A2-GB21-00 August 2000
Rear Panel Interface Connections
Figures 1-5 through 1-7 show the physical interfaces of the termination units.
POWER DSLCOM DSX-1
98-16117
O
I
Figure 1-5. Hotwire DSX-1 Interface Termination Unit Rear Panel
POWER DSLCOM
98-15880
PORT
O
I
Figure 1-6. Hotwire Synchronous Interface Termination Unit Rear Panel
POWER DSLCOM TX RX
G.703
75Ω120Ω
98-16005
O
I
Figure 1-7. Hotwire G.703 Interface Termination Unit Rear Panel

About the Hotwire Standalone Termination Unit
1-6 7900-A2-GB21-00
August 2000
SNMP Management Capabilities
The Hotwire 797x Standalone Termination Units support SNMP Version 1, and
can be managed by any industry-standard SNMP manager and accessed using
SNMP by external SNMP managers.
Management Information Base (MIB) Support
For a detailed description of the supported MIBs, visit Paradyne’s Web site at
www.paradyne.com. Select Technical Support →MIBs.
The following MIBs are supported:
HMIB II (RFC 1213 and RFC 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.
HDS1/E1 MIB (RFC 1406) –Models 7974 and 7976. Reports the performance
status of the DSX-1 or G.703 interface and supports the features found on
the DSX-1 or G.703 Performance Statistics screen.
HRS-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.
HParadyne Enterprise MIB –Supports configuration, status, statistics, and
tests.

About the Hotwire Standalone Termination Unit
1-7
7900-A2-GB21-00 August 2000
SNMP Trap Support
Hotwire 797x Standalone Termination Units support traps as defined in
RFC 1215.
Figure 1-8 illustrates a typical DSL SNMP configuration. Figure 1-9 illustrates an
DSL SNMP configuration connected directly to the Communications Port. Refer
to Chapter 5, IP Addressing and Appendix B, Standards Compliance for SNMP
Traps.
00-16487-01
DSLAM
Network
797x
AC
INPUT
AC
48VDCCLASS 2 OR
LIMITEDPWR SOURCE
RTN48V
AAB B
T5A
2
46
AB
.
.
.
3
.
1
2
POSITION
STACKALM A
IN
B
DCFUSES
T4A,MIN. 48V 5DCPWR
FAN
OUT SERIAL MCC 1 3
1
2
3
SYSTEM
OKAlrm Test
250V
SYSTEM
OKAlrm
Test
1234
G.703ALRM
DSLPORT
LINK-UP
1234
SYSTEM
OKAlrm Test 1234
G.703ALRM
DSLPORT
LINK-UP
SDSL
8715
1234
Router
SNMP NMS
Ethernet
Interface
DSL
EOC Data
Operation, Maintenance
and Provisioning Center
Ethernet
LAN
1234
G.703ALRM
DSLPORT
LINK-UP
1234
877x
Figure 1-8. DSL SNMP Configuration
00-16488-01
797x
SNMP NMS
DSL
EOC
Router Router
797x COM
Figure 1-9. DSL Local SNMP Configuration

About the Hotwire Standalone Termination Unit
1-8 7900-A2-GB21-00
August 2000
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2-1
7900-A2-GB21-00 August 2000
Using the Asynchronous Terminal
Interface 2
User Interface Access
You can communicate with the Hotwire Standalone Termination Unit with an
asynchronous terminal interface (ATI) using one of the following methods:
HDirect connection through the COM port of the standalone unit or through the
serial port of the DSLAM management card.
HTelnet session through the Embedded Operations Channel (EOC).
NOTE:
Only one terminal interface session can be active at a time, and another
user’s session cannot be forced to end. To automatically log out a user due to
inactivity, enable the Inactivity Timeout option (see Table A-9, Telnet Session
Options, in Appendix A, Configuration Options).
Security can limit ATI access several ways. To limit user access or set up login
IDs, refer to Chapter 6, Security.
Communication Port Settings
Ensure that the device you connect communicates using these settings:
HData rate set to 9.6 kbps.
HCharacter length set to 8.
HParity set to None.
HStop Bits set to 1.

Using the Asynchronous Terminal Interface
2-2 7900-A2-GB21-00
August 2000
Initiating an ATI Session
The Main Menu screen is displayed on the screen 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:
HA connection refused or connection failed message (if you are
using a Telnet session), or
HThe 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.
Î
ÎÎ
Login Hotwire
Model: 797x
LOGIN
Login ID:
Enter Password:
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