Paradyne M/HDSL Standalone Termination Unit HOTWIRE... User manual

HOTWIREMODEL 7986
M/HDSL STANDALONE
TERMINATION UNIT
WITH G.703 INTERFACE
USER’S GUIDE
Document No. 7986-A2-GB20-00
September 1998

Printed on recycled paper
A 7986-A2-GB20-00
September 1998
Copyright E1998 Paradyne Corporation.
All rights reserved.
Printed in U.S.A.
Notice
This publication is protected by federal copyright law. No part of this publication may be copied or distributed,
transmitted, 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, and Service 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:
HVia the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
HVia Telephone: Call our automated call system to receive current information via fax or to speak with a
company representative.
— Within the U.S.A., call 1-800-870-2221
— Outside the U.S.A., call 1-727-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered
service marks of their respective owners.
Document Feedback
We welcome your comments and suggestions about this document. Please mail them to Technical Publications,
Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773, or send e-mail to [email protected]. Include
the number and title of this document in your correspondence. Please include your name and phone number if you
are willing to provide additional clarification.

Important Information
B
7986-A2-GB20-00 September 1998
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or included in the manual.
2. Input power to this product must be provided by one of the following: (1) a UL Listed/CSA Certified power source
with a Class 2 or Limited Power Source (LPS) output for use in North America; or (2) a 24 Vdc National Electric
Code (NEC) ANSI/NFPA 70/Canadian Electric Code (CEC) Class 2 circuit installed in accordance with articles
110-16, 110-17, and 110-18 of the NEC, and articles 2-308, 2-310, 2-312, 2-314, 2-200, and 2-202 of the CEC, or
(3) a Safety Extra Low Voltage (SELV) power source with a maximum available output of less than 240 VA,
certified for use in the country of installation.
3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to
protect it from overheating, these slots and openings must not be blocked or covered.
4. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the
power cord.
5. Do not attempt to install or service this product yourself, as opening or removing covers may expose you to
dangerous high voltage points or other risks. Refer all installation and servicing to qualified service personnel.
6. General purpose cables are provided with this product. Special cables, which may be required by the regulatory
inspection authority for the installation site, are the responsibility of the customer.
7. When installed in the final configuration, the product must comply with the applicable Safety Standards and
regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory
agencies and inspection authorities to ensure compliance.
8. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If
products installed in separate buildings are interconnected, the voltage potential may cause a hazardous
condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if
necessary, implement corrective action prior to interconnecting the products.
9. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:
—Never install telephone wiring during a lightning storm.
—Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
—Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface.
—Use caution when installing or modifying telephone lines.
—Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of
electric shock from lightning.
—Do not use the telephone to report a gas leak in the vicinity of the leak.

Important Information
C 7986-A2-GB20-00
September 1998
EMI Warnings
!WARNING:
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
The authority to operate this equipment is conditioned by the requirements that no modifications will be
made to the equipment unless the changes or modifications are expressly approved by Paradyne
Corporation.
!WARNING:
To Users of Digital Apparatus in Canada:
This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment
regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur le matérial
brouilleur du Canada.

i
7986-A2-GB20-00 September 1998
Contents
About This Guide
HDocument Purpose and Intended Audience v. . . . . . . . . . . . . . . . . . . . . . . . .
HDocument Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HProduct-Related Documents vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 About the Model 7986 Standalone Termination Unit
HM/HDSL Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HHotwire 7986 Termination Unit Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
HNetwork Configuration 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HFront Panel LED Status Indicators 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HRear Panel Interface Connections 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HMIB Support 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Using the Asynchronous Terminal Interface
HUser Interface Access 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCommunication Port Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HInitiating an ATI Session 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
ii 7986-A2-GB20-00
September 1998
3 Initial Startup and Configuration
HOverview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConnecting Power to the Unit 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOptional Power Sources 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Unit to an Optional External DC Power Source 3-2. . . .
HConnecting to the Network 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConnecting to a System Terminal 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEntering Identity Information 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HChoosing a Configuration Mode 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring the Unit Using the Configuration Menus 3-5. . . . . . . . . . . . . . . . .
Configuration Options 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring the Unit Using the Internal Switches 3-6. . . . . . . . . . . . . . . . . . . .
Switchpack Locations 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switchpack Definitions 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAccessing and Displaying Configuration Options 3-10. . . . . . . . . . . . . . . . . . . .
HConfiguration Edit/Display 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring AutoRate 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguration Loader 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSaving Configuration Options 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDownload Code 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Monitoring the Unit
HWhat to Monitor 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing System and Test Status 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Health and Status 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-Test Results 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Status 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing Network Error Statistics 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing Network Performance Statistics 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing G.703 Performance Statistics 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HViewing Model 7986 Standalone Termination Unit LEDs 4-13. . . . . . . . . . . . . .
HModel 7986 Standalone Termination Unit LEDs 4-14. . . . . . . . . . . . . . . . . . . . .

Contents
iii
7986-A2-GB20-00 September 1998
5 Testing
HAccessing the Test Menu 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HRunning Network Tests 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Loopback 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repeater Loopback 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Loopback 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Send Remote Line Loopback 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Send and Monitor 511 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDevice Tests 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Test 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEnding an Active Test 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Messages and Troubleshooting
HOverview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HConfiguring SNMP Traps 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDevice Messages 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HTroubleshooting 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Security
HOverview 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HATI Access Levels 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCreating a Login 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDeleting a Login 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resetting the Termination Unit’s COM Port or Factory Defaults 7-4. . . .
8 IP Addressing
HSelecting an IP Addressing Scheme 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HIP Addressing Example 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
iv 7986-A2-GB20-00
September 1998
A Configuration Option Tables
HOverview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HNetwork Interface Options Menu A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HG.703 Interface Options Menu A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSystem Options Menu A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCommunication Port A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HManagement and Communication Options Menu A-11. . . . . . . . . . . . . . . . . . . .
HTelnet Session Options A-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCommunication Protocol Options A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP Traps Options A-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Standards Compliance for SNMP Traps
HSNMP Traps B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
warmStart B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
authenticationFailure B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
linkUp and linkDown B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEnterprise-Specific Traps B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Cables and Pin Assignments
HOverview C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HE1 Network Interface C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HDSL Network Interface Cable C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HCOM Port Interface Cable C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HPower Input Connector C-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOptional Power Cable C-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Technical Specifications
Glossary
Index

v
7986-A2-GB20-00 September 1998
About This Guide
Document Purpose and Intended Audience
This guide contains information needed to set up, configure, and operate the
Hotwire Model 7986 Multirate/High Bit-Rate Digital Subscriber Line (M/HDSL)
Standalone Termination Unit with G.703 interface and is intended for installers
and operators.
Document Summary
Section Description
Chapter 1 About the Model 7986 Standalone Termination Unit.
Describes the Model 7986 Termination 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 configuration steps.
Chapter 4
Monitoring the Unit. Describes using the LEDs, status, and
network statistics to monitor the unit.
Chapter 5
Testing. Provides information about available tests and test
setup.
Chapter 6
Messages and Troubleshooting. Provides information on
SNMP traps, device messages, and troubleshooting.
Chapter 7
Security. Presents procedures for creating a login, setting
the effective access levels, and controlling SNMP access.
Chapter 8
IP Addressing. Provides information and examples
regarding IP addresses.

About This Guide
vi 7986-A2-GB20-00
September 1998
Section Description
Appendix A Configuration Option Tables. Contains all configuration
options, default settings, and possible 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
8786-A2-GB20 Hotwire 8786 M/HDSL Termination Unit User’s
Guide
8786-A2-GZ40 Hotwire 8786 M/HDSL Termination Unit Installation
Instructions
Contact your sales or service representative to order additional product
documentation.
Paradyne documents are also available on the World Wide Web at:
http://www.paradyne.com
Select
Service & Support → Technical Manuals

1-1
7986-A2-GB20-00 September 1998
About the Model 7986 Standalone
Termination Unit 1
M/HDSL Overview
HotwireMultirate/High Bit-Rate Digital Subscriber Line (M/HDSL) 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 M/HDSL products can transport at full or fractional payload rates over a
4-wire, full-duplex circuit over varying distances based on the conditions of the
4-wire loop. Examples include support for router, multiplexer and PBX
connections at 128 kbps, with distances exceeding 21,000 feet (6.9 km) on
24 gauge (.5 mm) cable delivered at 2.048 Mbps.
Hotwire M/HDSL units are equipped with an automatic configuration capability
that reduces the M/HDSL installation process to a simple plug and play mode.
Simply connecting the units to the line automatically configures the customer for
the maximum data rate supported by the local loop. M/HDSL units can also be
configured at fixed line speeds.

About the Model 7986 Standalone Termination Unit
1-2 7986-A2-GB20-00
September 1998
Hotwire 7986 Termination Unit Features
The Hotwire Model 7986 M/HDSL Standalone Termination Unit is an endpoint for
the chassis-mounted Hotwire Model 8786 M/HDSL Termination Unit housed in
the Hotwire 8600 or 8800 Digital Subscriber Line Access Multiplexer (DSLAM).
Two Hotwire Model 7986 M/HDSL Standalone Termination Units can also be
configured to operate in a central office LTU to customer premises NTU
environment.
The Model 7986 Standalone Termination Unit offers these standard features:
HAutoRate Capability. Provides automatic configuration of line speed and
data rate upon connection.
HEmbedded Operations Channel (EOC). Provides remote SNMP Traps or
Telnet session capability over the M/HDSL link.
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. Provides local management using a:
— Terminal or equivalent through the COM port of the unit
HRemote Management. Provides remote management using:
— VT100 Terminal or PC via the Management Serial port of the DSLAM
— Network Management System (NMS) via the COM port or MCC port of
the DSLAM
— Telnet over the EOC
— External modem out-of-band
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.

About the Model 7986 Standalone Termination Unit
1-3
7986-A2-GB20-00 September 1998
Network Configuration
Figure 1-1 shows a network application using a 2-port Hotwire 8786 M/HDSL
Termination Unit for access concentration in a central office (CO). 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.
Frame
Relay
Switch
Router
E1 Host
(Frame Relay
Encapsulated
Data)
98-16151
Router
(Frame Relay
Encapsulated
Data)
G.703
Router 2.048 Mb
over
SDSL
8786 or 8784
Termination Unit
in 8600 DSLAM
CO Site 7986
7986
7985
Customer
Premises (CP)
7985
Customer
Premises
NTU
CO Site
LTU
7986 (G.703)
V.35
EIA-530A
V.35
G.703
7986
7986 (G.703)
G.703
Figure 1-1. Sample M/HDSL Configurations
NOTE:
A cross over cable (pins 1, 2 to 4, 5) is required for connecting two 7986
termination units back-to-back.

About the Model 7986 Standalone Termination Unit
1-4 7986-A2-GB20-00
September 1998
Front Panel LED Status Indicators
Figure 1-2 shows the front panel of the Model 7986 Standalone Termination Unit.
For more information on front panel LEDs, refer to Chapter 4,
Monitoring the Unit .
POWER ALARM TEST
DSL G.703
98-16087
7986 M/HDSL
TM
TM
Figure 1-2. Hotwire Model 7986 Standalone Termination Unit Front Panel
Rear Panel Interface Connections
Figure 1-3 shows the physical interfaces of the Model 7986 Standalone
Termination Unit.
POWER DSLCOM TX RX
G.703
75Ω120Ω
98-16005
O
I
Figure 1-3. Hotwire Model 7986 Standalone Termination Unit Rear Panel

About the Model 7986 Standalone Termination Unit
1-5
7986-A2-GB20-00 September 1998
MIB Support
The Model 7986 Standalone Termination Unit supports traps as defined in
RFC 1215. They may include variable-bindings specified in the following MIBs:
HMIB II (RFC 1573) – Defines the general objects for use with a network
management protocol in TCP/IP internets and provides general information
about the Model 7986 Standalone Termination Unit.
HEnterprise MIB – Supports configuration, status, statistics, and tests.
Figure 1-4 illustrates a typical M/HDSL SNMP configuration. Refer to Chapter 8,
IP Addressing and Appendix B, Standards Compliance for SNMP Traps .
98-16088
G.703
8600
DSLAM
Network
7986
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 TXRXCol 1234
ETHERNET
DSLPORT
RADSL
8546
250V
SYSTEM
OKAlrm Test 1234
G.703ALRM
DSLPORT
LINK-UP
SDSL
8715
1234
SYSTEM
OKAlrm Test 1234
G.703ALRM
DSLPORT
LINK-UP
SDSL
8715
1234
Router
SNMP NMS
8786
Ethernet
Interface
4-Wire
DSL
EOC
Data
Voice
Operation, Maintenance
and Provisioning Center
Ethernet
LAN
Figure 1-4. M/HDSL SNMP Configuration
Figure 1-5 illustrates an M/HDSL SNMP configuration connected directly to the
Communications Port. Refer to Chapter 8,
IP Addressing and Appendix B,
Standards Compliance for SNMP Traps .
98-16090
G.703
7986
SNMP NMS
DSL
EOC
Router Router
7986
G.703
COM
Figure 1-5. M/HDSL Local SNMP Configuration

About the Model 7986 Standalone Termination Unit
1-6 7986-A2-GB20-00
September 1998
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2-1
7986-A2-GB20-00 September 1998
Using the Asynchronous Terminal
Interface 2
User Interface Access
You can communicate with the Hotwire Model 7986 Standalone Termination Unit
with an asynchronous terminal interface (ATI) using one of the following methods:
HDirect connection through the COM port.
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-5, Telnet Sessions
Options, in Appendix A,
Configuration Option Tables ).
Security can limit ATI access several ways. To limit user access or set up login
IDs, refer to Chapter 7,
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 7986-A2-GB20-00
September 1998
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 security is enabled on the Model 7986 Standalone Termination Unit and you
used Telnet to access it directly (you did not log in through the MCC), the system
prompts you for a login ID and password.
Î
Î
ÎÎ
ÎÎ
Login Hotwire
Model: 7986
LOGIN
Login ID:
Enter Password:
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions Exit
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 7,
Security .
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 you will
see the IP address of the other user (if you are using the Management Serial
port).

Using the Asynchronous Terminal Interface
2-3
7986-A2-GB20-00 September 1998
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
main Access Level: Administrator Hotwire
Model 7986
MAIN MENU
Status
Test
Configuration
Control
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Ctrl-a to access these functions Exit
Screen
Area
Screen
Function
Keys
Area
Entry to all of the termination unit’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 termination unit’s interfaces.
Configuration Display and edit the configuration options.
Control Change the device identity, administer logins, download new firmware, or
initiate a power-up reset of the termination unit.
After selecting an option, what appears on the screens depends on the:
HCurrent configuration – How your termination unit is currently configured.
HEffective security access level – An access level that is typically set by the
system administrator for each interface and each user.
HData selection criteria – What you entered in previous screens.

Using the Asynchronous Terminal Interface
2-4 7986-A2-GB20-00
September 1998
The following illustration shows the menu paths to the different ATI screens.
Main
Status Test
S
ystem and
Test Status Performance Statistics Display LEDs Identity
Configuration Control
Factory
Config Configuration Loader Current Configuration Edit/Display
System
Options
Communication
Protocol Option
Communication
Port Management and
Communication
Telnet
Session SNMP Traps
Change
Identity
Administer
Logins
Download
Code Apply
Download
Reset
AutoRate
Network
and
G.703Test
Device
Tests Abort All
Tests
98-16071
Rese
t
Devic
e
Network G.703
Network
Error
Statistics
Network
Performance
Statistics
G.703
Statistics