HP 3162 User Manual

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ACCULINK

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3162 DSU/CSU

USER’S GUIDE

Document No. 3162-A2-GB20-40

August 2000

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, 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:

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

at www.paradyne.com/warranty.)

H Telephone: 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 — Outside the U.S.A., call 1-727-530-2340

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.

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 userdoc@paradyne.com. 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.

August 2000

3162-A2-GB20-40

Important Information

Important Safety Instructions

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

2. This product is intended to be used with a 3-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug by modifying the plug or using an adapter.

Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the presence of earth ground. If the receptacle is not properly grounded, the installation must not continue until a qualified electrician has corrected the problem.

If a 3-wire grounding type power source is not available, consult a qualified electrician to determine another method of grounding the equipment.

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 service this product yourself, as opening or removing covers may expose you to dangerous high voltage points or other risks. Refer all servicing to qualified service personnel.

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. Input power to the ac voltage configuration of this product must be provided by a UL-listed or CSA-certified power source with a Class 2 or Limited Power Source (LPS) output.

10. This product contains a coin cell lithium battery that is only to be replaced at the factory . Caution: There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same type. Dispose of used batteries according to the battery manufacturer’s instructions. Attention: Il y a danger d’explosion s’il y a remplacement incorrect de la batterie. Remplacer uniquement avec une batterie du même type. Mettre au rebut les batteries usagées conformément aux instructions du fabricant.

1 1.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.

3162-A2-GB20-40 August 2000

Important Information

UNITED STATES – EMI NOTICE:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, 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.

CANADA – EMI NOTICE:

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

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

August 2000

3162-A2-GB20-40

Important Information

Government Requirements and Equipment Return

Certain governments require that instructions pertaining to CSU connection to the telephone network be included in the installation and operation manual. Specific instructions are listed in the following sections.

United States NOTICE TO USERS OF THE UNITED STATES TELEPHONE NETWORK

1. This equipment complies with Part 68 of the FCC rules. On the bottom of the DSU/CSU is a label that contains, among other information, the FCC registration number. If requested, this information must be provided to the telephone company .

2. The T1 network connection should be made using a Universal Service Order Code (USOC) type RJ48C jack. The Service Order Code 6.0F should be specified to the telephone company when ordering the T1 line. In addition, the proper Facility Interface Code must be specified to the telephone company . The DSU/CSU can be configured to support any of the following framing format and line signaling techniques. The DSU/CSU configuration must correspond to the T1 line’s parameters.

DSU/CSU Facility Interface Codes

Code

04DU9-BN 1.544 Mbps superframe format (SF) without line power 04DU9-DN 1.544 Mbps SF and B8ZS without line power 04DU9-1KN 1.544 Mbps ANSI ESF without line power 04DU-1SN 1.544 Mbps ANSI ESF and B8ZS without line power

3. An FCC compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant. See the installation instructions for details.

4. If the DSU/CSU causes harm to the telephone network, the telephone company will notify you in advance that temporary discontinuance of service may be required. But if advance notice is not practical, the telephone company will notify the customer as soon as possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary.

5. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service.

6. If you experience trouble with this equipment, please contact your sales or service representative (as appropriate) for repair or warranty information. If the product needs to be returned to the company service center for repair, contact them directly for return instructions using one of the following methods:

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

Description

H Telephone: Call our automated call system to receive current information or to speak with a company

representative.

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

If the trouble is causing harm to the telephone network, the telephone company may request that you remove the equipment from the network until the problem is resolved.

3162-A2-GB20-40 August 2000

Important Information

7. If your DSU/CSU is in need of repair, refer to the W arranty, Sales and Service Information section on page A.

8. No repairs may be made by the customer.

Canada NOTICE TO USERS OF THE CANADIAN TELEPHONE NETWORK

The Industry Canada label identifies certified equipment. This certification means that the equipment meets telecommunications network protective, operational, and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document(s). The Department does not guarantee the equipment will operate to the user’s satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.

Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.

Users should ensure for their own protection that the electrical ground connections of the power utility , telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

CAUTION:

Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority , or electrician, as appropriate.

The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5.

If your equipment is in need of repair, refer to the procedure on page A of this document.

August 2000

3162-A2-GB20-40

About This Guide

H Document Purpose and Intended Audience vii. . . . . . . . . . . . . . . . . . . . . . . . .

H Document Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Product-Related Documents viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Reference Documents ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Introduction

H Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Physical Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Drop/Insert (DSX-1) Interface 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Asynchronous Terminal Interface Support 1-2. . . . . . . . . . . . . . . . . . . . . .

Alarm Message Capability 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Telnet Access 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SNMP Management Support 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Installation

H Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Application Examples 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H SNMP or Telnet Connection Examples 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Important Instructions 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Cabling Example 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Power-On Self-Test 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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August 2000

Contents

3 Operation

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

H Front Panel LEDs 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Initiating an Asynchronous Terminal Session 3-5. . . . . . . . . . . . . . . . . . . . . . . .

H Ending an Asynchronous Terminal Session 3-5. . . . . . . . . . . . . . . . . . . . . . . . .

H Recovering Asynchronous Terminal Operation 3-6. . . . . . . . . . . . . . . . . . . . . .

H Menu Organization 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Using Asynchronous Terminal Screens 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Entering a Password to Gain Access 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Displaying LED Conditions 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Changing Configuration Options 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Configuration

Displaying or Editing Configuration Options 3-13. . . . . . . . . . . . . . . . . . . . .

Saving Edit Changes 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Setting Customer Identification 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Configuring the 10BaseT Port 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Configuring the COM Port for SNMP or Telnet Access 4-4. . . . . . . . . . . . . . .

Configuring the COM Port for Management 4-5. . . . . . . . . . . . . . . . . . . . .

Setting the IP Address 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting the Link Layer Protocol 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Configuring DS0 Channels 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displaying DS0 Channel Assignments 4-12. . . . . . . . . . . . . . . . . . . . . . . . .

Allocating DS0 Channels from the DTE Drop/Insert Interface to the

Network Interface 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring DS0 Channels for Robbed Bit Signaling 4-15. . . . . . . . . . . . .

Allocating Data Ports Using the Block or ACAMI Assignment

Method 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Allocating Data Ports Using the Individual Channel Assignment

Method 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clearing DS0 Channel Allocation 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Establishing Access Security on the COM Port 4-18. . . . . . . . . . . . . . . . . . . . . .

H Setting a Password 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Selecting the Timing Source 4-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Providing Backup Capability 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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3162-A2-GB20-40

5 Monitoring and Testing

H Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Self-Test Results 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Device Health and Status 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Performance Reports 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Ethernet Statistics 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H IP Routing Table 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Alarms 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H SNMP Traps 5-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Troubleshooting 5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Test Jacks 5-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Test Commands 5-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Remote Loopback Tests 5-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sending a Line Loopback Up or Down 5-19. . . . . . . . . . . . . . . . . . . . . . . . .

Sending a V.54 or ANSI FT1 Activation/Deactivation Sequence 5-20. . . .

H Local Loopback Tests 5-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Line Loopback 5-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Payload Loopback 5-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a DTE Loopback 5-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Repeater Loopback 5-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Data Channel Loopback 5-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Data Terminal Loopback 5-25. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aborting Loopbacks 5-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Test Patterns 5-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sending Network QRSS or Network 1-in-8 Test Patterns 5-26. . . . . . . . . .

Sending Port QRSS or Port 511 Test Patterns 5-27. . . . . . . . . . . . . . . . . . .

Monitoring Network QRSS Test Patterns 5-27. . . . . . . . . . . . . . . . . . . . . . .

Monitoring Port QRSS or Port 511 Test Patterns 5-27. . . . . . . . . . . . . . . . .

Aborting Test Patterns 5-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Lamp Test 5-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting a Lamp Test 5-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aborting a Lamp Test 5-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Displaying DSU/CSU Test Status 5-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

A Asynchronous Terminal Menu

B Technical Specifications

H Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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iii

Contents

C Configuration Options

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

H Network Interface Configuration Options C-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

H DTE Interface Configuration Options C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Sync Data Port Configuration Options C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Cross Connect Configuration Options C-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE-to-Network Assignment Options C-1 1. . . . . . . . . . . . . . . . . . . . . . . . . .

Sync Data Port Assignment Options C-12. . . . . . . . . . . . . . . . . . . . . . . . . . .

H General Configuration Options C-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H User Interface Configuration Options C-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communication Port Configuration Options C-17. . . . . . . . . . . . . . . . . . . . .

External Device Configuration Options C-19. . . . . . . . . . . . . . . . . . . . . . . . .

Telnet Sessions Configuration Options C-22. . . . . . . . . . . . . . . . . . . . . . . . .

Ethernet (10BaseT) Port Configuration Options C-23. . . . . . . . . . . . . . . . . .

H Alarm and Trap Configuration Options C-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Management and Communication Configuration Options C-26. . . . . . . . . . . . .

Communication Protocol Configuration Options C-26. . . . . . . . . . . . . . . . .

General SNMP Management Configuration Options C-28. . . . . . . . . . . . . .

SNMP NMS Security Configuration Options C-29. . . . . . . . . . . . . . . . . . . . .

SNMP Traps Configuration Options C-30. . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Configuration Worksheets C-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D Pin Assignments

H Overview D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H T1 Network Interface D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H DTE Drop/Insert Interface D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H 10BaseT Connector D-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H COM Port Interface D-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Serial Crossover Cable D-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H EIA-530-A Port Interface Connector D-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H EIA-530-A-to-RS-449 Adapter D-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H EIA-530-A-to-V.35 Adapter D-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H EIA-530-A-to-X.21 Adapter D-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H External Clock Interface D-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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3162-A2-GB20-40

E SNMP MIB Objects

H Overview E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H MIB II (RFC 1213) E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Group, MIB II E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interface Group, MIB II E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IP Group, MIB II E-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ICMP Group, MIB II E-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCP Group, MIB II E-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

UDP Group, MIB II E-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transmission Group, MIB II E-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SNMP Group, MIB II E-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H DS1/E1 MIB (RFC 1406) E-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Near End Group, DS1/E1 MIB E-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Far End Group, DS1/E1 MIB E-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DS1 Fractional Group, DS1/E1 MIB E-16. . . . . . . . . . . . . . . . . . . . . . . . . . . .

H RS-232-like MIB (RFC 1317) E-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Port Table, RS-232-like MIB E-17. . . . . . . . . . . . . . . . . . . . . . . . . . .

Asynchronous Port Table, RS-232-like MIB E-19. . . . . . . . . . . . . . . . . . . . .

Synchronous Port Table, RS-232-like MIB E-20. . . . . . . . . . . . . . . . . . . . . .

Input Signal Table, RS-232-like MIB E-20. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Signal Table, RS-232-like MIB E-21. . . . . . . . . . . . . . . . . . . . . . . . . .

H Generic-Interface MIB Extensions (RFC 1229) E-21. . . . . . . . . . . . . . . . . . . . . .

Generic Interface Test T able, Generic Interface MIB E-22. . . . . . . . . . . . . .

H Enterprise MIB E-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

F IP Network Addressing Scenario

H Overview F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Standalone at the Central Site F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Local Carrier with Remote Standalone F-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H Local and Remote Carriers — Different Subnets F-4. . . . . . . . . . . . . . . . . . . .

H Local and Remote Carriers — Same Subnet F-5. . . . . . . . . . . . . . . . . . . . . . . .

H Multiple NMSs F-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G Equipment List

Glossary

Index

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3162-A2-GB20-40

About This Guide

Document Purpose and Intended Audience

This user’s guide contains installation, operation, and maintenance information for the ACCULINK 3162 Data Service Unit (DSU)/Channel Service Unit (CSU).

It is assumed that you are familiar with the operation of digital data communication equipment. You should also be familiar with Simple Network Management Protocol (SNMP) if you want your DSU/CSU to be managed by an SNMP manager.

Document Summary

Section Description

Chapter 1 Introduction. Describes the 3162 DSU/CSU and its

Chapter 2 Installation. Describes how to install the DSU/CSU and

Chapter 3 Operation. Provides information about the front panel

Chapter 4 Configuration. Contains procedures for configuring the

Chapter 5 Monitoring and Testing. Contains procedures for

Appendix A Asynchronous Terminal Menu. Contains a menu tree

Appendix B Technical Specifications. Contains technical

Appendix C Configuration Options. Contains all the configuration

features.

make connections.

LEDs, and instructions for using an asynchronous terminal to control and configure the DSU/CSU.

Ethernet port, the COM port, DS0 channels, and access security .

monitoring, testing, and troubleshooting.

showing all the main front panel functions.

specifications for the 3162 DSU/CSU.

options and default settings.

3162-A2-GB20-40

Appendix D Pin Assignments. Shows the pin assignments for

connectors and cables.

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vii

About This Guide

Section Description

Appendix E SNMP MIB Objects. Describes the MIB objects

Appendix F IP Network Addressing Scenario. Provides sample IP

Appendix G Equipment List. Contains order numbers for cables and

Glossary Defines abbreviations and terms used in this

Index Lists key terms, concepts, and sections in alphabetical

Product-Related Documents

Document Number Document Title

supported by the DSU/CSU.

addressing scheme.

other related parts.

document.

order.

3160-A2-GB24 ACCULINK DSU/CSU, Models 3160-A4, 3161,

3164-A2, and 3165-A4, Operator’s Guide

3162-A2-GL11 ACCULINK 3162 DSU/CSU Quick Reference

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

viii

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3162-A2-GB20-40

Reference Documents

AT&T Technical Reference 54016 AT&T Technical Reference 62411 ANSI T1.403-1989 Industry Canada CS-03 CSA-22.2 No. 950 Industry Canada (ICES)-003 FCC Part 15 FCC Part 68 UL 1950

Management Information Base for Network Management of TCP/IP- Based Internets: MIBII. RFC 1213, March 1991

Definitions of Managed Objects for the DS1 and E1 Interface Types. RFC 1406,

January 1993

About This Guide

Definitions of Managed Objects for RS-232-like Hardware Devices. RFC 1317, April 1992

Extensions to the Generic-Interface MIB. RFC 1229, May 1991

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3162-A2-GB20-40

Introduction

Overview

The ACCULINKr DSU/CSU acts as an interface between the T1 digital network and the customer premises equipment, converting signals received from the DTE (Data Terminal Equipment) to bipolar signals that can be transmitted over T1 lines. Typical applications include shared access to network-based services, Local Area Network (LAN)/Wide Area Network (WAN) interconnection, and fractional T1 network applications.

In addition to the T1 network interface and the DTE Drop/Insert (DSX-1) interface, the Model 3162 provides two synchronous data ports.

Features

The DSU/CSU optimizes network performance with a wide range of features such as the following:

H Local or remote configuration and operation flexibility. H Several loopback capabilities and test pattern generators. H DTE Drop/Insert (DSX-1) capability. H Asynchronous terminal interface support. H Alarm message display/print capability. H Telnet access for remote asynchronous terminal operations. H Network management provided through industry-standard Simple Network

Management Protocol (SNMP).

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1-1

Introduction

DTE Drop/Insert (DSX-1) Interface

The DTE Drop/Insert interface allows DTEs/PBXs that support the DS1 signal format to share the T1 network with other high-speed equipment.

Asynchronous Terminal Interface Support

The DSU/CSU can be configured and managed from an asynchronous (async) terminal. The asynchronous terminal’s full screen display uses a menu hierarchy to perform device-control operations.

Chapter 3, Operation, provides operational examples to help you become familiar with the use of the asynchronous terminal for DSU/CSU control.

Alarm Message Capability

The DSU/CSU can be attached, either locally or remotely, to an ASCII terminal or printer to display or print alarm messages. Alarms can also be displayed on a PC that is using a terminal emulation package.

Chapter 5, Monitoring and Testing, provides a list of alarm messages.

Telnet Access

Remote async terminal operations can be performed using Telnet access. Telnet is a Transmission Control Protocol/Internet Protocol (TCP/IP) service that supports a virtual terminal interface.

SNMP Management Support

SNMP is a network management protocol that is used to monitor network performance and status, and to report alarms (i.e., traps). To function, SNMP requires a manager consisting of a software program housed within a workstation or PC; an agent consisting of a software program housed within a device (e.g., the DSU/CSU); and a Management Information Base (MIB) consisting of a database of managed objects. The DSU/CSU can be managed by any industry-standard SNMP manager.

Two link layer protocols, Point-to-Point Protocol (PPP) and Serial Line Internet Protocol (SLIP), are supported for connection to an external SNMP manager or network device (e.g., a router).

The SNMP manager or network device can be directly connected to the communications (COM) port or can be accessed via Ethernet using the 10BaseT port.

1-2

The SNMP management system can communicate to the DSU/CSU remotely through the Facility Data Link (FDL) or the synchronous data port’s Embedded Data Link (EDL).

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3162-A2-GB20-40

Physical Description

The DSU/CSU front panel (Figure 1-1) contains twelve light-emitting diodes (LEDs) and six test jacks.

The LEDs are described in Front Panel LEDs in Chapter 3, Operation. The test jacks are described in Test Jacks in Chapter 5, Monitoring and Testing. The DSU/CSU rear panel (Figure 1-2) contains the connectors required for the

operation of the DSU/CSU. The connectors and their functions are listed in

Table 1-1.

ACCULINK

Introduction

F1 F2 F3

MON EQPT

NET

3162

OutInOutInOut

Figure 1-1. 3162 DSU/CSU Front Panel

PORT 2

POWER

PORT 1

FAIL TEST SIG OOF ALRM

NETWORK RXD

10 BASE-T

COM DSX-1MODEM

EER SIG ALRM PDVOOF BPV

DTR TXD CTS RTS

496-15001

EXT CLK

NETWORK

00-16852

3162-A2-GB20-40

Figure 1-2. 3162 DSU/CSU Rear Panel

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1-3

Introduction

Table 1-1. DSU/CSU Rear Panel Connectors

Name

POWER Supplies power to the DSU/CSU by providing an attachment for the

10 BASE-T PORT COM PORT Provides access to a locally connected PC, ASCII terminal or

NETWORK Provides access to the T1 network. DTE Provides access to the DTE Drop/Insert (DSX-1) interface. CLOCK IN Used to attach an external clock to the DSU/CSU. PORTs 1–2 Used to connect the customer’s synchronous data DTE to the

Function

AC power module. Supports connection to an Ethernet LAN.

printer, SNMP management link, or asynchronous terminal interface.

DSU/CSU.

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Installation

Overview

This chapter contains information for installing your DSU/CSU. It includes application examples, cabling, and power-on information.

Application Examples

The DSU/CSU acts as an interface between the T1 digital network and the customer’s equipment.

LAN

ROUTER

The DSU/CSU is connected to the customer’s equipment through one of the synchronous data ports (PORTs 1– 2) or the DTE Drop/Insert (DSX-1) interface. It is connected to the T1 digital network through the network interface.

Some common applications for the DSU/CSU are:

H Point-to-Point LAN interconnection (Figure 2-1). H Shared access to network-based services (Figure 2-2). H Fractional T1 network applications (Figure 2-3).

NETWORK

DSU/CSU

Figure 2-1. Point-to-Point Application Example

DSU/CSU

LAN

ROUTER

496-15218

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2-1

Installation

PBX

NETWORK SERVICES

LAN

ROUTER

DSU/CSU

Figure 2-2. Shared Access Application Example

LAN

ROUTER

DSU/CSU

FRACTIONAL

NETWORK

LAN

ROUTER

DSU/CSU

Figure 2-3. Fractional T1 Application Example

496-15219

LAN

ROUTER

DSU/CSU

LAN

ROUTER

496-15220

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SNMP or Telnet Connection Examples

The DSU/CSU can be connected to an SNMP or Telnet system in a number of ways. Some examples include:

H Directly connecting the COM port to the SNMP or Telnet device (Figure 2-4). H Connecting the COM port to a network device (e.g., a router) (Figure 2-5). H Connecting to an Ethernet LAN through the 10BaseT port (Figure 2-6). H Remotely accessing the DSU/CSU through the Facility Data Link (FDL) or the

synchronous data port’s Embedded Data Link (EDL) (Figure 2-7).

Installation

ETHERNET

PPP/SLIP

Figure 2-4. Direct Connection

ETHERNET

LAN

ROUTER

LAN

ROUTER

DSU/CSU

NETWORK

496-15221

DSU/CSU

NETWORK

PPP/SLIP

496-15222

3162-A2-GB20-40

Figure 2-5. Connection through a Router

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2-3

Installation

LAN

ETHERNET

ROUTER

Figure 2-6. Connection through the 10BaseT Port

DSU/CSUDSU/CSU

NETWORK

FDL/EDL

PPP

DSU/CSU

NETWORK

99-15008-02

ETHERNET

LAN

ROUTER

LAN

ADAPTER

496-15225

Figure 2-7. Remote Access through FDL/EDL

Important Instructions

Read and follow all warning notices and instructions marked on the DSU/CSU or included in this guide.

For a complete listing of the safety instructions, see the Important Safety

Instructions at the beginning of this guide.

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Cabling Example

The DSU/CSU is supplied with an AC power module, a T1 network cable, and a COM port cable.

Optional cables are described in Appendix D, Pin Assignments. Figure 2-8 illustrates typical cabling.

Installation

POWER

10BaseT

PORT

PORT 2

PORT 1

SERIAL

10Base-T

COM DSX-1MODEM

COM

PORT

EXT CLK

NET

NETWORK

PORT

3162

DSU/CSU

PORT

SNMP

MANAGER

Figure 2-8. Cabling Example

T1 NETWORK

NETWORK

PORT

3162 DSU/CSU

00-16826

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2-5

Installation

Power-On Self-Test

After you connect the DSU/CSU to a power source, the unit performs the power-on self-test to ensure that it is in good working order. The DSU/CSU performs this test on itself upon power-on or after a device reset, unless it has been disabled by the Self-Test configuration option (see Appendix C,

Configuration Options).

The self-test includes a basic processor test, a limited memory test, a code checksum test, and basic verification tests of the internal components.

" Procedure

The power-on self-test consists of the following steps:

1. Once the DSU/CSU is plugged in, the Fail LED blinks ON and Off continuously.

2. All the LEDs then start to flash simultaneously in the pattern twice ON, then Off.

3. If the self-test is successful, the Fail LED turns Off and the OK LED lights.

If the self-test fails, the Fail LED lights. The DSU/CSU continues to try to operate. If you are in doubt about the results of the self-test, use the System and Test Status screen to display the results of this test (see Self-Test

Results in Chapter 5, Monitoring and Testing).

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Operation

Overview

This chapter contains information for operating your DSU/CSU. It includes a description of the front panel LEDs and sample procedures to help you become familiar with the use of the asynchronous terminal for DSU/CSU control.

Front Panel LEDs

There are twelve LEDs on the DSU/CSU front panel. The five LEDs on the right (Figure 3-1) are shared between the DTE Drop/Insert (DSX-1) interface and the data ports. Use the Control branch of the asynchronous terminal menu tree to choose which port’s status the LEDs display (see Menu Organization on page 3-7).

3162-A2-GB20-40

Figure 3-1. DSU/CSU LEDs

A green LED indicates normal operation. A yellow LED indicates a warning (for the DTE Drop/Insert interface) or activity (for the data ports). Conditions are sampled every tenth of a second.

The twelve front panel LEDs are grouped into four sections to indicate the status of the:

H System (Table 3-1) H Network Interface (Table 3-2) H DTE Drop/Insert (DSX-1) Interface (Table 3-3) H Data Ports (Table 3-4)

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3-1

Operation

Table 3-1. System LEDs

Name

OK Green Indicates the current operational state of the DSU/CSU.

FAIL Yellow Indicates a system failure or a self-test.

TEST Yellow A system test is in progress.

Color Meaning

ON: The DSU/CSU is operational and has power. OFF: The DSU/CSU is performing a power-on self-test

or a system failure has occurred.

BLINKING: A software download is in progress.

ON: A device error/fault is detected or a reset has just

occurred.

OFF: No system failures are detected. BLINKING: A self-test is in progress.

ON: A loopback or pattern test has been initiated

either locally, by the network, or externally.

OFF: No tests are active.

Table 3-2. Network Interface LEDs

Name

Color Meaning

SIG Green Monitors the signal being received from the network.

ON: A recoverable signal is being received from the

OFF: The signal cannot be recovered from the network

OOF Yellow Monitors Out Of Frame (OOF) conditions on the received network

signal.

ON: At least one OOF was detected on the signal during the

OFF: No OOFs were detected on the signal during the

ALRM Yellow Indicates whether an alarm condition exists on the received network

signal.

ON: An alarm condition (LOS, LOF, EER, Yellow, AIS)

OFF: No alarm condition exists on the network interface

EER Yellow Indicates the Excessive Error Rate (EER) has been exceeded on the

network interface.

NOTE: This LED is only valid when ESF framing is being used.

ON: The EER has been exceeded on the network

OFF: The EER has not been exceeded on the network

network.

(a Loss of Signal condition exists).

sampling period.

exists on the received network signal. Use the System and Test Status screen to determine the alarm type.

signal.

interface.

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3162-A2-GB20-40

Table 3-3. DTE Drop/Insert (DSX-1) Interface LEDs

Operation

Name

SIG Green Monitors the signal being received from the DTE Drop/Insert

OOF Yellow Monitors Out Of Frame (OOF) conditions on the received DTE

ALRM Yellow Indicates whether an alarm condition exists on the received DTE

PDV Yellow Monitors Pulse Density Violations (PDV) on the received DTE

Color Meaning

(DSX-1) interface.

ON: A recoverable signal is being received from the

DTE Drop/Insert (DSX-1) interface.

OFF: The signal cannot be recovered from the DTE

Drop/Insert (DSX-1) interface (a Loss of Signal condition exists).

Drop/Insert (DSX-1) signal.

ON: At least one OOF was detected on the signal

during the sampling period.

OFF: No OOFs were detected on the signal during the

sampling period.

Drop/Insert (DSX-1) signal.

ON: An alarm condition (LOS, LOF, EER, Yellow, AIS)

exists on the received DTE Drop/Insert (DSX-1) signal. Use the Device Health and Status command to determine the alarm type.

OFF: No alarm condition exists on the DTE Drop/Insert

(DSX-1) interface signal.

Drop/Insert (DSX-1) signal.

ON: At least one PDV was detected (and corrected)

on the received DTE Drop/Insert (DSX-1) signal during the sampling period.

OFF: No PDVs were detected on the received DTE

Drop/Insert (DSX-1) signal during the sampling period.

3162-A2-GB20-40

BPV Yellow Monitors Bipolar Violations (BPV) on the received DTE

Drop/Insert (DSX-1) signal.

ON: At least one BPV was detected (and corrected)

on the received DTE Drop/Insert (DSX-1) signal during the sampling period.

OFF: No BPVs were detected on the received DTE

Drop/Insert (DSX-1) signal during the sampling period.

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3-3

Operation

Table 3-4. Data Port LEDs

Name

DTR Green Monitors the state of interchange circuit CD (CCITT 108/1, /2) –

TXD Yellow Monitors activity on interchange circuit BA (CCITT 103) –

RXD Yellow Monitors activity on interchange circuit BB (CCITT 104) –

Color Meaning

Data Terminal Ready received from the synchronous data DTE.

ON: DTR is being asserted by the synchronous data

DTE.

OFF: DTR is not being asserted.

Transmitted Data. This is the data sent from the synchronous data DTE to the data port on the DSU/CSU.

ON: Ones are being received from the synchronous

data DTE.

OFF: Zeros are being received from the synchronous

data DTE.

CYCLING: Both ones and zeros are being received from the

synchronous data DTE.

Received Data. This is data sent to the synchronous data DTE from the data port on the DSU/CSU.

ON: Ones are being sent to the synchronous data

DTE.

OFF: Zeros are being sent to the synchronous data

DTE.

CYCLING: Both ones and zeros are being sent to the

synchronous data DTE.

CTS Yellow Monitors the state of interchange circuit CB (CCITT 106) –

Clear-to-Send sent to the synchronous data DTE.

ON: CTS is being asserted by the DSU/CSU. OFF: CTS is not being asserted.

RTS Yellow Monitors the state of interchange circuit CA (CCITT 105) –

Request-to-Send received from the synchronous data DTE.

ON: RTS is being asserted by the synchronous data

OFF: RTS is not being asserted.

DTE.

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3162-A2-GB20-40

Initiating an Asynchronous Terminal Session

You can configure and manage the DSU/CSU from an asynchronous terminal that is configured for 9.6 kbps, 8 characters, no parity, and 1 stop bit.

You can connect the asynchronous terminal directly to the COM port of the DSU/CSU, or you can establish a remote connection using dial-in or Telnet access.

Once the appropriate access is established, the Main Menu screen (Figure 3-2) appears (unless a password is required).

If a password is required, the Login screen displays the prompt for password input. (Refer to Entering a Password to Gain Access on page 3-10.)

To move between the Screen area and the Screen Function Keys area (Figure 3-2), press Ctrl-a (Control key and a).

From the Screen area, you may select the Status, Test, Configuration, or Control branches.

Operation

Ending an Asynchronous Terminal Session

To end the asynchronous terminal session from any screen, press Ctrl-a to move from the Screen area to the Screen Function Keys area (Figure 3-2), and then select E

Screen Area

Screen Function Keys Area

xit.

main Customer ID: Node A Model: 3162 Slot: xx

MAIN MENU

Status Test Configuration Control

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

xit

3162-A2-GB20-40

Figure 3-2. Main Menu Screen

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3-5

Operation

Recovering Asynchronous Terminal Operation

If the DSU/CSU is misconfigured, leaving it in a state that does not support asynchronous terminal operation, use the following recovery procedure.

" Procedure

1. Power cycle the DSU/CSU, waiting for the completion of the power-on self-test.

2. Press the asynchronous terminal’s Return key five times in succession. (Begin pressing the Return key within two seconds after the completion of power-on self-test, and do not wait longer than one second between each successive key press.)

3. The System Paused screen appears. Use it to reset the COM port configuration options or to reload all factory default configuration options.

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3162-A2-GB20-40

Menu Organization

Figure 3-3 shows the organization of the asynchronous terminal menu tree.

Operation

Main

System and

Test Status

DTE Channel

Network Channel

Display

Cross Connect

Status

Display

Port

Assignment

Display

Network

Network DTE

Status

Performance

Statistics

Sync Data

Port

Display

LEDs

Network &

Clear

Statistics

Sync Data

Identity

DTE T ests

Sync Data

Port T ests

Ports

Test

Device

Copy Ports

Tests

Configuration Control

Abort Tests

Configuration

Edit/Display

Cross

Connect

Call

Directories

Call

Setup

General Options

Administer

Password

Customer

User

Interface

Start

Download

Alarms & T raps

Select

Monitor Jack

Select

LEDs

Management

and

Communication

Reset

Device

3162-A2-GB20-40

DTE to

Network

Assignments

Sync Data

Assignments

Figure 3-3. Menu Organization

August 2000

Port

Communication

Assignments

Port

Protocol

Clear

External

Device

General SNMP

Management

Telnet

Sessions

Ethernet

Port

SNMP NMS

Security

SNMP

Traps

00-16827

3-7

Operation

Using Asynchronous Terminal Screens

There are three types of asynchronous terminal screens.

H Menu screens list selections available through the menu system. H Input screens allow you to edit or change information on a screen using

screen function keys (Table 3-5) or keyboard keys (Table 3-6).

H Display screens show the results from a data collection operation or they

display device-specific information.

The asynchronous terminal supports character matching for entering values in fields. For example, if the values for a field can be DTE, NET, or PORT and you enter a D and press Return (Enter), then the field automatically populates with the value DTE.

Once an operation is initiated, status messages appear in the last row of the screen. These include Please Wait (when a command takes longer than five seconds) and Command Complete.

Table 3-5. Screen Function Keys

Screen Function Key

M (MainMenu) Returns to the Main Menu screen. E (Exit) Terminates the asynchronous terminal session. R (Refresh) Updates the screen with the current information. U (PgUp) Pages up to the previously displayed page of information. D (PgDn) Pages down to the previously displayed page of

S (Save) Stores changes in nonvolatile memory .

Usage

information.

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3162-A2-GB20-40

Table 3-6. Keyboard Keys

Operation

Keyboard Key

Ctrl-a Moves the cursor between the Screen area and the

Esc Returns to the previous screen. Tab Moves the cursor to the next field. Back (Shift) Tab or Ctrl-k Moves the cursor to the previous field. Backspace Moves the cursor one position to the left or to the last

Spacebar Selects the next valid value for the field. Delete Deletes the character that the cursor is on. Up Arrow key or Ctrl-u Moves the cursor up one field within a column on the

Down Arrow key or Ctrl-d Moves the cursor down one field within a column on the

Right Arrow key or Ctrl-f Moves the cursor back one character to the right. Left Arrow key or Ctrl-b Moves the cursor back one character to the left. Ctrl-l Redraws the screen display.

Usage

Screen Function Keys area.

character of the previous field.

same screen.

Return (Enter) Accepts entry.

NOTE:

Some Telnet applications may require the use of Ctrl-u, Ctrl-d, Ctrl-f, and Ctrl-b as an alternative to the use of the Up, Down, Right, and Left Arrow keys.

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3-9

Operation

Entering a Password to Gain Access

When access security is required, the Login screen (Figure 3-4) appears before you can access the Main Menu screen. The password must be entered.

H If the password is valid, the DSU/CSU’s top-level menu appears. H If the password is invalid, an invalid password message appears and the

screen reappears and waits for password entry.

H If an invalid password is entered three consecutive times, the message User

Interface Idle appears, Telnet sessions are closed, dial-in connections

are disconnected, and an SNMP trap is generated.

Enter Password

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Ctrl-a to access these functions E

xit

Figure 3-4. Entering a Password

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Displaying LED Conditions

The same conditions monitored by the front panel LEDs can also be monitored by the Display LEDs screen. This screen is most useful when the DSU/CSU is being accessed remotely.

" Procedure

To display LED conditions:

1. From the Main Menu screen, select Status.

2. From the Status screen, select Display LEDs. The Display LEDs screen appears (Figure 3-5).

The screen shows a snapshot of the LEDs every 5 seconds. LEDs that are illuminated are displayed by inverse video.

Operation

Select R

main/status/leds Customer ID: Node A Model: 3162 Slot: xx

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

efresh to update the screen.

DISPLAY LEDs

GENERAL NETWORK DTE PORT 1 PORT 2

OK Sig Sig DTR DTR Fail OOF OOF TXD TXD Test Alm Alm RXD RXD

EER PDV CTS CTS

BPV RTS RTS

ainMenu Exit

efresh

Figure 3-5. Example of Display LEDs Screen

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3-11

Operation

Changing Configuration Options

The DSU/CSU is an intelligent device that displays only valid options for the current configuration. Therefore, you are only presented with menu choices that are consistent with the current configuration and operational state of the DSU/CSU; invalid combinations of configuration options do not appear. For example, if the DTE Drop/Insert (DSX-1) interface selection is disabled, many of the menu choices do not appear.

The DSU/CSU offers configuration options located in the following memory areas:

H Current. This is the configuration option set currently active for the DSU/CSU

is stored here. Before a configuration option set becomes active for the DSU/CSU, you must save the set to the Current area. When the DSU/CSU is shipped from the factory, the Current configuration option set is identical to the Default Factory set. This area can be written to and controls the current operation of the device.

H Customer 1. This is the first of two sets of customer-defined configuration

options. This area can be written to.

H Customer 2. This is the second of two sets of customer-defined configuration

options. This area can be written to.

H Default Factory 1. This is a set of configuration options preset at the factory.

This set is determined by what is considered to be the most common configuration used in the DSU/CSU market. Default Factory 1 options are read-only.

H Default Factory 2. This is a set of configuration options preset at the factory.

This set is determined by what is considered to be the second most common configuration used in the DSU/CSU market. Default Factory 2 options are read-only.

The configuration options are divided into functional groups. Appendix C,

Configuration Options, contains a list of the configuration options and defaults.

The DSU/CSU arrives with two preset factory default configuration settings. These settings are based on the following:

H Default Factory 1 – ESF framing format with B8ZS line coding format for

both the network and the DTE Drop/Insert (DSX-1) interfaces. Data ports are unassigned.

H Default Factory 2 – D4 framing format with AMI line coding format for both

the network and the DTE Drop/Insert (DSX-1) interfaces. Data ports are unassigned.

If neither of the factory default settings support your network’s configuration, you can customize the configuration options to better suit your application.

3-12

Use the Configuration branch of the menu tree to display or change DSU/CSU configuration options (see Appendix C, Configuration Options).

August 2000

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Displaying or Editing Configuration Options

Procedure

To display or edit configuration options:

1. From the Main Menu screen, select Configuration. The Load Configuration From screen appears (Figure 3-6).

2. From the Load Configuration From screen, select a configuration option set to load (Current, Customer 1, Customer 2, Default Factory 1, or Default Factory 2). You cannot edit the Default Factory configuration options, but you can display them.

After selecting the set of configuration options to load, the Configuration Edit/Display screen appears (Figure 3-7).

3. Select a functional group to display or edit.

NOTE:

Screen displays may vary depending on the configuration of the DSU/CSU.

Operation

main/config Customer ID: Node A Model: 3162 Slot: xx

LOAD CONFIGURATION FROM:

Current Configuration Customer Configuration 1 Customer Configuration 2 Default Factory Configuration 1 Default Factory Configuration 2

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

ainMenu Exit

Figure 3-6. Configuration Load Screen

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3-13

Operation

main/config/edit Customer ID: Node A Model: 3162 Slot: xx

CONFIGURATION EDIT/DISPLAY

Network DTE Sync Data Ports Copy Ports Cross Connect General Options User Interface Alarms & Traps Management and Communication

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

ave

ainMenu Exit

Figure 3-7. Configuration Edit/Display Screen

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August 2000

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Saving Edit Changes

Operation

Procedure

To save edit changes:

1. From the last edit screen, select S

ave.

The Save Configuration To screen appears (Figure 3-8).

2. From the Save Configuration To screen, select a configuration option set (Current, Customer 1, or Customer 2).

Save edit changes to the Current area when you want those changes to take effect immediately. Save edit changes to the Customer area when you want to overwrite the existing Customer configuration options and store these changes for future use.

To protect you from accidentally exiting an edit session before saving your changes, the system displays the Save Changes? prompt if you select either

ainMenu or Exit from an edit screen. If you respond No, the system exits

without saving the changes. If you respond Yes, you are prompted to specify where the changes should be saved.

main/config/save Customer ID: Node A Model: 3162 Slot: xx

SAVE CONFIGURATION TO:

Current Configuration Customer Configuration 1 Customer Configuration 2

3162-A2-GB20-40

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

ainMenu Exit

Figure 3-8. Configuration Save Screen

August 2000

3-15

Operation

This page intentionally left blank.

3-16

August 2000

3162-A2-GB20-40

Configuration

Overview

Configuring the DSU/CSU may include:

H Setting Customer Identification H Configuring the 10BaseT Port H Configuring the COM Port for SNMP or Telnet Access H Configuring DS0 Channels H Establishing Access Security on the COM Port

H Setting a Password H Entering a Password to Gain Access H Selecting the Timing Source H Providing Backup Capability

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4-1

Configuration

Setting Customer Identification

The customer identification is used to uniquely identify the DSU/CSU.

" Procedure

To change the customer identification (Customer ID):

1. From the Main Menu screen, select Control.

2. From the Control screen, select Customer ID. The Customer ID screen appears (Figure 4-1).

3. Use the Customer ID field to set the customer identification. The customer identification may be up to 8 characters long. Select Clear to remove all the characters in the associated field.

Customer Identification Field

4. Select S

ave to store the information in nonvolatile memory.

In addition to the customer identification, you may also enter a system name, system location, and system contact. Although only 40 characters are displayed for these fields, you may enter up to 255 characters. The fields scroll as the additional characters are added.

main/control/customer id Customer ID: Node A Model: 3162 Slot: xx

CUSTOMER ID

Customer ID: System Name: System Location: System Contact:

–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

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

ave

Clear Clear Clear Clear

ainMenu Exit

4-2

Figure 4-1. Customer Identification Screen

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3162-A2-GB20-40

Configuring the 10BaseT Port

To configure the 10BaseT port for SNMP access:

H Set the Port Use configuration option to your network protocol. H Set the 10BaseT port’s IP address and subnet mask. H Set the default gateway address.

" Procedure

To configure the 10BaseT port:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select User Interface.

4. From the User Interface screen, select Ethernet Port. The Ethernet Port Options screen appears.

Configuration

5. In the Port Use field, select 802.3 or Version 2.

6. Enter the IP Address, Subnet Mask, and Default Gateway Address.

7. When you are through making configuration option changes, select S

ave to store these changes in nonvolatile memory. If you want to return to the User Interface screen, press your Esc key and then save your changes from that screen.

main/config/user/ethernet Customer ID: Node A Model: 3162

ETHERNET PORT OPTIONS

Port Use: Version 2

IP Address: 000.000.000.000 Clear Subnet Mask: 000

Default Gateway Address: 000

.000.000.000 Clear

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

ave

ainMenu Exit

Figure 4-2. Ethernet Port Options Screen

August 2000

4-3

Configuration

Configuring the COM Port for SNMP or Telnet Access

To configure the DSU/CSU for SNMP or T elnet access,

H Enable the SNMP agent or Telnet server within the DSU/CSU (see

Appendix C, Configuration Options).

H Configure the COM port. H Set the Internet Protocol (IP) address and subnet mask needed to access

the DSU/CSU (see Appendix F, IP Network Addressing Scenario).

H Select the link layer protocol (PPP or SLIP) for the port that provides the link

to the SNMP or Telnet system.

H For SNMP links, specify the two community names (and their access levels)

that are allowed to access the device’s Management Information Base (MIB) (see Appendix C, Configuration Options).

H For SNMP links, configure the device to send traps to the SNMP manager, if

desired (see Appendix C, Configuration Options, and SNMP Traps in Chapter 5, Monitoring and Testing).

H Specify the Telnet password or SNMP validation options, if desired (see

Appendix C, Configuration Options).

4-4

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Configuring the COM Port for Management

The SNMP manager, Telnet device, or network device (e.g., a router) can be directly connected to the COM port. The COM port can support either synchronous or asynchronous PPP, or asynchronous SLIP at data rates of up to 38,400 bps.

" Procedure

To configure the COM port as an SNMP or T elnet link:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select User Interface.

4. From the User Interface screen, select Communication Port.

5. In the Port Use field, enter Mgmt (Figure 4-3).

Configuration

6. When you are through making configuration option changes, select S store these changes in nonvolatile memory. If you want to return to the User Interface screen, press your Esc key and then save your changes from that screen.

main/config/user/com Customer ID: Node A Model: 3162 Slot: xx

COMMUNICATION PORT OPTIONS

Port Use: Mgmt Port Type: Synchronous Clock: Internal Data Rate (Kbps): 9.6

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

ave

ainMenu Exit

ave to

Port Use Field

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Figure 4-3. Communication Port Options Screen

August 2000

4-5

Configuration

Setting the IP Address

" Procedure

The IP address is the address used by the SNMP or Telnet system to access the DSU/CSU (see Appendix F, IP Network Addressing Scenario). For DSU/CSUs using PPP, the IP address can be negotiated if the network device (e.g., router or SNMP manager) supports such negotiation. The IP address is composed of four fields with three digits per field (xxx.xxx.xxx.xxx).

The example below assumes that an IP address of 010.155.111.222 is being set for the COM port. You can use the same principles to assign any value (between 000 and 255 for each digit field).

To assign an IP address to the COM port:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select Management and Communication.

4. From the Management and Communication screen, select Communication Protocol.

5. In the Communication Port’s IP Address field, enter the IP address for the COM port. Enter the subnet mask under this.

ave to

4-6

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Selecting the Link Layer Protocol

Two link layer protocols, Point-to-Point Protocol (PPP) and Serial Line Internet Protocol (SLIP), are supported for connection to an external SNMP manager, Telnet device, or network device (e.g., a router). PPP can be used for synchronous or asynchronous operation. SLIP can be used for asynchronous operation only.

The DSU/CSU implementation of PPP supports the following:

H Full negotiation of PPP’s Link Control Protocol (LCP). H Active negotiation of LCP when the connection is established. H Maximum Request Unit (MRU) sizes up to 1500 bytes, but the DSU/CSU will

attempt to negotiate down to 500 bytes.

H The DSU/CSU provides a unique LCP magic number derived from the unit

serial number and the elapsed time.

H Full negotiation of escape characters.

The DSU/CSU implementation of PPP does not support Link Quality Reports (LQR), compression, encryption, Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP).

Configuration

The DSU/CSU implementation of SLIP supports a fixed MRU size of 1006 bytes.

" Procedure

To select the link layer protocol:

1. Select the Communication Protocol Options screen using the procedure described in the previous section, Setting the IP Address.

2. In the Communication Port’s Com Link Protocol field, enter PPP or SLIP.

3. When you are through making configuration option changes, select S store these changes in nonvolatile memory. If you want to return to the User Interface screen, press your Esc key and then save your changes from that screen.

ave to

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4-7

Configuration

Configuring DS0 Channels

The DSU/CSU provides Cross Connect configuration options that allow you to do the following:

H Display the DS0 assignments for the network, DTE Drop/Insert (DSX-1), and

data port interfaces.

H Allocate DS0 channels on the DTE Drop/Insert (DSX-1) interface to the

network interface.

H Allocate DS0 channels on the network or DTE Drop/Insert (DSX-1) interface

to particular data ports.

H Map data from one port to another. H Clear (deallocate) all DS0 channels from the network, DTE Drop/Insert

(DSX-1), or data port interface.

To allocate DS0 channels, begin by defining the logical channel configuration for the network interface, and then the DTE Drop/Insert (DSX-1) interface, and then any ports, if desired. See Figure 4-4 for an example of a conceptual diagram of a channel configuration.

Blank configuration worksheets are provided at the back of Appendix C,

Configuration Options. These worksheets will help you prepare to perform the

procedures in this section. Figure 4-5 and Figure 4-6 are provided as an example only. See Appendix C for other useful worksheets.

NOTE:

The procedures in this section are examples only. Screen displays may vary depending on the configuration of the DSU/CSU. For example, the DTE Drop/Insert (DSX-1) interface is not displayed if this interface is disabled.

4-8

August 2000

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NETWORK INTERFACE

N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N16 N17 N18 N19 N20 N21 N22 N23 N24

Configuration

DTE DROP/INSERT

(DSX-1) INTERFACE

D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24

PORTS

PRT 1 PRT 2

496-15016

3162-A2-GB20-40

Figure 4-4. Example of Channel Allocation

August 2000

4-9

Configuration

Network Interface

Network Channel

N1 D1 N2 D2 N3 D3 N4 D4 N5 D5 N6 N7 N8 N9 D9 N10 D10 N11 D11 N12 D12 N13 D15 N14 Prt1

Allocation

N15 Prt1 N16 Prt1 N17 N18 Prt2 N19 Prt2 N20 Prt2 N21 Prt2 N22 Prt2 N23 Prt2 N24 Allocations D1 – D24 indicates allocation to DTE Drop/Insert (DSX-1) channels.

Prt1 – Prt2 indicates allocation to synchronous data ports.

Figure 4-5. Example of Network Interface Worksheet

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August 2000

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DTE Drop/Insert (DSX-1) Interface

Configuration

DTE (DSX-1) Channel

D1 N1 D2 N2 D3 N3 D4 N4 D5 N5 D6 D7 D8 D9 N9 D10 N10 D11 N11 D12 N12 D13 D14

Allocation

D15 N13 D16 D17 D18 D19 D20 D21 D22 D23 D24 Allocations N1 – N24 indicates allocation to network channels.

Figure 4-6. Example of DTE Drop/Insert Interface W orksheet

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August 2000

4-11

Configuration

Displaying DS0 Channel Assignments

Use the DTE to Network Assignments screen (in the Cross Connect branch) to view how the DS0 channels are currently allocated. DS0 designations used on this screen are shown in Table 4-1.

Table 4-1. DTE to Network DS0 Designations

Designation

Available The DS0 channel is not allocated. Assigned The DS0 channel is allocated to one of the data ports. Nnn The DS0 channel is allocated to the network interface DS0

DTEnn The DS0 channel is allocated to the DTE Drop/Insert

Meaning

channel nn, where nn can be any number from 01 through

24.

(DSX-1) interface DS0 channel nn, where nn can be any number from 01 through 24.

4-12

August 2000

3162-A2-GB20-40

" Procedure

To display the DS0 channel allocation:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select Cross Connect.

4. From the Cross Connect screen, select DTE To Network Assignments. The DTE to Network Assignments screen appears (Figure 4-7).

5. To view specific port assignments on the Network Channel Display screen, select N

main/config/cross_connect/dte Customer ID: Node A Model: 3162 Slot: xx

etChan at the bottom of the DTE to Network Assignments screen.

DTE (DSX-1) TO NETWORK ASSIGNMENTS

Configuration

NetChan Selection

N01 N02 N03 N04 N05 N06 N07 N08

DTE02 DTE03 DTE04 DTE05 Available Available Available

DTE01

N09 N10 N11 N12 N13 N14 N15 N16

DTE10 DTE11 DTE12 DTE15 Assigned Assigned Assigned

DTE09

N17 N18 N19 N20 N21 N22 N23 N24 Available

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

ave NetChan DTEChan PtAssign

Assigned Assigned Assigned Assigned Assigned Assigned Available

ainMenu Exit

Figure 4-7. Example of DTE Drop/Insert Interface Worksheet

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August 2000

4-13

Configuration

Allocating DS0 Channels from the DTE Drop/Insert Interface to the Network Interface

Procedure

To allocate DS0 channels from the DTE Drop/Insert (DSX-1) interface to the network interface:

1. From the Main Menu screen, select Configuration. The Load Configuration From screen appears.

2. From the Load Configuration From screen, select Current. The Configuration Edit/Display screen appears.

3. From the Configuration Edit/Display screen, select Cross Connect. The Cross Connect screen appears.

4. From the Cross Connect screen, select DTE To Network Assignments. The DTE to Network Assignments screen appears (Figure 4-8).

5. Assign the DS0 channels from the DTE Drop/Insert (DSX-1) interface to the network interface. In the example shown in Figure 4-7, the DTE Drop/Insert (DSX-1) DS0 channel 01 is assigned to the network DS0 channel 01.

DTE to Network Assignment

6. Select S

main/config/cross_connect/dte Customer ID: Node A Model: 3162 Slot: xx

N01 N02 N03 N04 N05 N06 N07 N08 DTE01

N09 N10 N11 N12 N13 N14 N15 N16 Available

N17 N18 N19 N20 N21 N22 N23 N24 Available

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

ave NetChan DTEChan PtAssign

ave to store these settings in nonvolatile memory.

DTE (DSX-1) TO NETWORK ASSIGNMENTS

Available Available Available Available Available Available Available

Available Available Available Available Assigned Assigned Assigned

Assigned Assigned Assigned Assigned Assigned Assigned Available

ainMenu Exit

Figure 4-8. Making DTE to Network Assignments

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August 2000

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Configuring DS0 Channels for Robbed Bit Signaling

By using the DTE configuration options, you can specify which DS0 channels carry Robbed Bit Signaling (RBS) information for voice channels.

" Procedure

To specify DTE Drop/Insert (DSX-1) channels used to carry voice information:

1. From the Main Menu screen, select Configuration. The Load Configuration From screen appears.

2. From the Load Configuration From screen, select Current. The Configuration Edit/Display screen appears.

3. From the Configuration Edit/Display screen, select DTE. The DTE Interface Options screen appears (Figure 4-9).

4. Enter RBS for each DS0 channel that you want to configure for voice applications.

The designation None indicates the absence of RBS information. These channels (known as Clear Channels) are used for data applications.

Configuration

Configured for RBS

5. Select S

main/config/dte Customer ID: Node A Model: 3162 Slot: xx DTE INTERFACE OPTIONS

Signaling: D01 D02 D03 D04 D05 D06 D07 D08

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

ave

ave to store these settings in nonvolatile memory.

Interface Status: Enable Line Framing Format: ESF Line Coding Format: B8ZS Line Equalization: 0-133 DTE LB on External Contact: Disable

DTE

Send all Ones on DTE Failure: Enable

None None None None None None None

None

D09 D10 D11 D12 D13 D14 D15 D16

None None None None None None None

RBS

D17 D18 D19 D20 D21 D22 D23 D24

None None None None None None None

None

ainMenu Exit

Figure 4-9. DTE to Interface Options Screen

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4-15

Configuration

Allocating Data Ports Using the Block or ACAMI Assignment Method

By using the block or ACAMI (Alternate Channel Alternate Block Inversion) assignment method, you can assign a data port to a block of contiguous DS0 channels on either the network interface or the DTE Drop/Insert (DSX-1) interface.

The block assignment method allows a block of contiguous channels to be assigned by specifying a data port rate and an initial DS0 channel (the first DS0 channel in a block of DS0 channels). The number of channels assigned is determined by the port rate. These channels are automatically assigned to the destination T1 interface (Network or DTE Drop/Insert) when the initial DS0 channel is selected.

The ACAMI assignment method also allows a block of contiguous channels to be assigned, however, with ACAMI, the number of channels assigned is twice the number needed for the port rate. This is because with ACAMI, every alternate DS0 channel (starting with the n+1 DS0 channel), does not carry data from the port, but instead always transmits and receives all ones.

" Procedure

To assign data ports by the block or ACAMI method:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select Cross Connect.

4. From the Cross Connect screen, select Sync Data Port Assignments.

5. Use the Assign To field to specify the destination T1 interface (Network or DTE).

6. Use the Assign By field to specify the assignment method (Block or ACAMI).

7. After filling in the Port Rate field, specify a port assignment for the initial DS0 channel in a block of contiguous, available DS0 channels.

8. Select S Esc key and then save your changes from that screen.

ave or, if you want to return to the Cross Connect screen, press your

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August 2000

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Allocating Data Ports Using the Individual Channel Assignment Method

By using the individual channel assignment method, you can assign a data port to individual DS0 channels on either the network interface or the DTE Drop/Insert (DSX-1) interface.

This method individually selects the DS0 channels to allocate to the data port. The data port rate is automatically determined based on the number of channels selected.

" Procedure

To assign data ports by the individual channel method:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select Cross Connect.

4. From the Cross Connect screen, select Sync Data Port Assignments.

5. Use the Assign To field to specify the destination T1 interface (Network or DTE).

Configuration

6. Use the Assign By field to specify the assignment method (Channel).

7. Specify the port assignments for the individual DS0 channels. The DS0 channels do not need to be contiguous.

The port rate increases as the port is assigned to additional DS0 channel. For two DS0 channels (at 64 kbps each), a port rate of 128 kbps is required.

8. Select S Esc key and then save your changes from that screen.

ave or, if you want to return to the Cross Connect screen, press your

Clearing DS0 Channel Allocation

You can clear (deallocate) all the DS0 channels currently allocated to either the network interface, the DTE Drop/Insert (DSX-1) interface, or the synchronous data ports.

" Procedure

To clear DS0 channel allocation:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select Cross Connect.

3162-A2-GB20-40

4. From the Cross Connect screen, select Clear Assignments.

5. To clear all DS0 channel allocations, select Clear All. Otherwise, select the appropriate DS0 channel group to clear (DTE, Network, or Sync Data Ports).

A message will appear, Are You Sure?.

6. Enter Yes to clear the specified DS0 channels.

August 2000

4-17

Configuration

Establishing Access Security on the COM Port

Although the password feature is available, it is not required. If used, it ensures access security before control is passed to a device connected to a port. The following procedure is an example only. It shows how to enable the password for the communication port. Passwords can also be enabled for Telnet sessions.

" Procedure

To establish access security on the communication port:

1. From the Main Menu screen, select Configuration.

2. From the Load Configuration From screen, select Current.

3. From the Configuration Edit/Display screen, select User Interface.

4. From the User Interface Options screen, select Communication Port.

5. In the Password Required field, enter Enable.

6. Select S

7. From the Save Configuration To screen, select Current.

The password itself is set separately. Refer to the following section, Setting a

Password.

ave to store this setting in nonvolatile memory.

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August 2000

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Setting a Password

In addition to establishing access security on a port (refer to the previous section,

Establishing Access Security on the COM Port), the password itself is set.

Unless you specify otherwise, the password is null.

" Procedure

To set a password:

1. From the Main Menu screen, select Control.

2. From the Control screen, select Administer Password.

3. Enter a new password in the Password field.

4. Use the Re-Enter Password field to verify the new password.

Configuration

The Password Entry screen (Figure 4-10) is used to add a new password or modify an existing password.

The password may be 1 to 8 characters long and may contain the characters 0 through 9, a through z, and/or A through Z.

Save Password

5. Select S

ave.

Once a password is saved, the Login Records Saved message appears in the last row of the screen.

main/control/admin_password Customer ID: Node A Model: 3162 Slot: xx

PASSWORD ENTRY

Password: Re-Enter Password:

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

ave

ainMenu Exit

Enter New Password

Re-Enter Password

3162-A2-GB20-40

Figure 4-10. Setting a Password

August 2000

4-19

Configuration

Selecting the Timing Source

The DSU/CSU provides the ability to select a master clock (timing) source that is used to synchronize all of the T1 and data port interfaces on the DSU/CSU. The clock for each interface is at the appropriate rate for that interface (e.g.,

1.544 Mbps for the T1 interfaces, the configured port rate for the data ports), and it is independent of the master clock rate. This means that the master clock rate and the DSU/CSU interface rates may be different.

The clock source configuration options enable you to select either the network interface, a synchronous data port, the internal clock, the DTE Drop/Insert (DSX-1) interface, or an external clock. If external clocking is selected, you must use the clock rate configuration option to specify the clock rate. Figure 4-11 shows some common clocking configurations. For more information on configuration options, refer to Appendix C.

NETWORK

CLOCK: NETWORK CLOCK: NETWORK

CLOCK: EXTERNAL CLOCK: NETWORK

PBX

CLOCK: DTE DROP/INSERT (DSX-1) CONNECTOR

TERMINAL

EQUIPMENT

CLOCK: PORT 1

CLOCK: NETWORKCLOCK: INTERNAL

CLOCK: NETWORK

496-15012-01

4-20

Figure 4-11. Common Clocking Configurations

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Providing Backup Capability

If the T1 network fails, the DSU/CSU provides the ability to reconfigure the unit and restore (at least partially) priority data circuits through an external backup device.

You can store backup configuration options in the Customer 2 set of customer-defined configuration options. The Enterprise MIB variable devConfigAreaCopy allows the entire contents of one configuration area to be copied into another configuration area via SNMP.

By cross-connecting two synchronous data ports to each other, one port can provide a backup path for the other. As soon as the ports are configured to be mapped to each other, Data Set Ready (DSR) for the ports is turned on. The external backup device can be configured to initiate dialing when it detects the off-to-on transition of DSR.

Configuration

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Configuration

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Monitoring and Testing

Overview

The DSU/CSU can detect and report faults, and perform diagnostic tests. These features ensure that your DSU/CSU is giving you optimum performance in your network.

Self-Test Results

Use the System and Test Status screen to display the results of the power-on self-test. Possible messages are listed in Table 5-1.

See Chapter 2, Installation, for more information about power-on self-test.

" Procedure

To display power-on self-test results:

1. From the Main Menu screen, select Status.

2. From the Status screen, select System and Test Status.

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5-1

Monitoring and Testing

Table 5-1. Self-Test Results

Message

Alarm Fail The unit failed to transmit AIS or to detect an Yellow alarm. B8ZS/LOS Fail The unit failed to encode data properly or to detect Loss Of

CPU Fail The central processing unit failed internal testing. Device Fail One or more of the unit’s integrated circuit chips failed to pass

DSU Fail The unit failed to internally loop data on the DSU. DSU Port n Fail Port’s integrated circuitry failed to pass device internal testing. DTE T1 Fail The unit failed to internally loop data on the DTE T1 (DSX-1)

Failure xxxxxxxx An 8-digit hexadecimal failure code is provided for service

Memory Fail The unit failed program checksum verification. Modem fail Unit failed to internally loop data through the modem circuit. Network T1 Fail The unit failed to internally loop data on the network T1 circuit. Passed No problems were found during power-on.

Description

Signal.

internal device level testing.

circuit.

personnel.

Unknown Exp Dev The unit is not able to recognize the expansion device connected

to the main circuit card.

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Device Health and Status

Use the System and Test Status screen to display the current health and status messages for the DSU/CSU. Table 5-2 lists these messages in priority order.

" Procedure

To display health and status messages:

1. From the Main Menu screen, select Status.

2. From the Status screen, select System and Test Status.

Table 5-2. Health and Status Messages (1 of 2)

Monitoring and Testing

Message

AIS at DTE An Alarm Indication Signal is being received by the DTE

AIS at Network An Alarm Indication Signal (unframed all ones signal) is being

Device Fail

xxxxxxxx

Download Failed A download attempt was interrupted and failed to complete. The

EER at Network An Excessive Error Rate condition has been detected on the

EER at Port n The error rate of the received signal has exceeded the configured

Ethernet Down There is no electrical activity on the 10BaseT port. LOS at DTE A Loss Of Signal condition (175 consecutive zeros) has been

Description

Drop/Insert (DSX-1) interface.

received by the network interface. An internal error has been detected by the operating software. An

8-digit code appears for use by service personnel. The condition is cleared by resetting the device.

condition is cleared by resetting the device.

network interface. The condition is cleared when the error rate falls below the threshold value.

threshold for data port Port n (where n is the port number). This condition only occurs if the synchronous data port’s Embedded Data Link (EDL) is enabled. The condition is cleared when the error rate falls below the synchronous data port’s configured threshold value.

detected on the DTE Drop/Insert (DSX-1) interface. The condition is cleared when the density of ones to zeros received is 12.5%.

3162-A2-GB20-40

LOS at Network A Loss Of Signal condition (175 consecutive zeros) has been

detected on the network interface. The condition is cleared when the density of ones to zeros received is 12.5%.

Modem Connected The integral modem is currently connected. This message is only

displayed for standalone DSU/CSUs.

Network Com Link Down

The network communication link is in a down state. This condition only occurs if the COM port is configured for Mgmt, and communication between the management system and the DSU/CSU is not currently possible for this port.

August 2000

5-3

Monitoring and Testing

Table 5-2. Health and Status Messages (2 of 2)

Message Description

OOF at DTE An Out Of Frame condition has been detected on the DTE

Drop/Insert (DSX-1) interface. The condition is cleared when a reframe occurs.

OOF at Network An Out Of Frame condition (2 out of 4 frame synchronization bits

in error) has been detected on the network interface. The condition is cleared when a reframe occurs.

OOF at Port n An Out Of Frame condition has been detected on data port Port n

(where n is the port number). This condition only occurs if the synchronous data port’s Embedded Data Link (EDL) is enabled.

Primary Clock Failed

System Operational This message only appears if there are no valid alarm or status

Yellow at DTE A Yellow Alarm signal is being received by the DTE Drop/Insert

Yellow at Network A Yellow Alarm signal is being received by the network interface.

The primary clock has failed. Timing for the DSU/CSU is provided by the internal clock.

messages.

(DSX-1) interface.

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Performance Reports

Use the Performance Statistics screen to access performance reports for the DSU/CSU.

When the network interface is configured for ESF operation, network performance is continuously monitored and maintained in two sets of aggregate registers: Carrier Network Interface Registers (Telco) and User Network Interface Registers (User). The User registers contain an extra status register (Status). Registers are listed in Table 5-3. These registers are status registers that collect performance data for the previous 24-hour period. Performance data is updated in 15-minute intervals. After 15 minutes, the current interval is rolled over into a set of accumulator registers that represent the previous 96 15-minute intervals for the register. An interval total of how many of the 96 registers contain valid data is also kept, as well as a 24-hour total for each accumulator register.

Port performance is continuously monitored and maintained in memory registers when the port is configured to use EDL. The DSU/CSU maintains two sets of port registers for each synchronous data port: far-end port registers and near-end port registers. These registers are status registers that collect performance data for the previous 8-hour period. Port data is updated in 15-minute intervals. After 15 minutes, the current interval is rolled over into a set of accumulator registers that represent the previous 32 15-minute intervals for the register. An interval total of how many of the 32 registers contain valid data is also kept, as well as a 8-hour total for each accumulator register.

Monitoring and Testing

You can reset the performance registers via the Clear Statistics selection on the Performance Statistics screen.

" Procedure

To display performance reports:

1. From the Main Menu screen, select Status.

2. From the Status screen, select Performance Statistics.

3. From the Performance Statistics screen, select either Network or Sync Data Ports depending on the type of statistics that you want to view.

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5-5

Monitoring and Testing

Table 5-3. Performance Registers (1 of 2)

Current Interval Timer

ESF Error Events

Valid Interval Total

ES The number of errored seconds

Interval Description Totals Description

This register records the number of seconds in the current 15-minute interval. The maximum is 900 seconds. This register is valid for the current interval only .

An error event is an ESF frame with either a Cyclic Redundancy Check (CRC) error or an Out Of Frame (OOF) event. The maximum count is 65,535. This register is only reset as a result of a reset command from the network. This register is valid for the current interval only .

N/A Records the number of valid

for the current interval. An errored second is any second with one or more ESF error events. The maximum is 900 seconds.

N/A

15-minute intervals in the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance. This register is not valid for the current interval.

The total number of errored seconds for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

UAS The number of unavailable

seconds for the current interval. An unavailable second is any one second interval when service is unavailable. (Detection occurs with 10 consecutive unavailable seconds.) The maximum is 900 seconds.

SES The number of severely errored

seconds for the current interval. A severely errored second is any second with 320 or more CRC errors, or any second with one or more OOF events. The maximum is 900 seconds.

BES The number of bursty errored

seconds for the current interval. A bursty errored second is any second with more than one, but less than 320, CRC errors. The maximum is 900 seconds.

The total number of unavailable seconds for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

The total number of severely errored seconds for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

The total number of bursty errored seconds for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

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Table 5-3. Performance Registers (2 of 2)

Monitoring and Testing

CSS (Not valid for

The number of controlled slip seconds for the current interval.

Port registers.)

LOFC The loss of frame count for the

current interval. This is a count of the number of times that an LOF is declared. The maximum count is 255.

Status (Only valid for User registers.)

The status events register records whether one or more of the following events have occurred at least once during the interval. The event is identified by a letter as follows:

H Y – A Yellow Alarm signal has

been received on the network interface.

H L – Loss Of Signal has

occurred on the DTE Drop/Insert (DSX-1) interface.

H E – The Excessive Error Rate

threshold has been exceeded.

H F – A Frame Synchronization

Bit Error has been detected.

H V – A Bipolar Violation has

been detected.

H If none of these events

occurred during the interval, none will be displayed.

The total number of controlled slip seconds for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

The total loss of frame count for the previous x hours, where x is 24 hours for aggregate performance and 8 hours for port performance.

N/A

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Complete (Only valid for far-end port registers.)

Bad line conditions or loopback tests may prevent far-end port statistics from reaching the DSU/CSU. This field indicates whether the 15-minute interval contains 900 seconds of statistics. If one or more seconds of far-end statistics are missing, this field will display no, otherwise it will display yes. This field is only displayed when Far is selected from the Prtn screen.

August 2000

N/A

5-7

Monitoring and Testing

Ethernet Statistics

You can obtain information about the 10BaseT port with the Ethernet Port Status screen of the Status branch.

" Procedure

To display Ethernet statistics:

1. From the Main Menu screen, select Status.

2. From the Status screen, select Ethernet Port Status.

main/status/ethernet Customer ID: Node A Model: 3162

The Ethernet Port Status screen appears, displaying 10BaseT port settings and statistics.

ETHERNET PORT STATUS

Port Use: Version 2 IP Address: 135.18.40.2 Subnet Mask: 255.255.255.000 Default Gateway Address: 135.18.2.0 Ethernet MAC Address: 00:60:94:EF:56:5D

Frames Transmitted: 0000000000 Frames Received: 0000000000 Errored Frames: 0000000000 Excessive Collisions: 0000000000 Carrier Sense Errors: 0000000000

ESC for previous menu M

efresh Clrstats

ainMenu Exit

Select Refresh to update the statistics. Select Clrstats to set all the statistics to zero.

5-8

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Table 5-4. Ethernet Port Status

Monitoring and Testing

Field

Port Use Shows whether the port is enabled. The field contains one of:

IP Address Displays the IP address of the port. Subnet Mask Displays the subnet mask for the IP address. Default Gateway

Address Ethernet MAC

Address Frames

Transmitted Frames Received Displays the number of frames successfully received since the unit

Errored Frames Displays the number of frames that were in error since the unit was

Excessive Collisions

Description

H Disabled – The port is disabled. H 802.3 – The port uses IEEE 802.3 protocol. H Version 2 – The port uses Ethernet Version 2 protocol.

Displays the IP address used for IP datagrams not on this subnet.

Displays the Media Access Control address of the port.

Displays the number of frames successfully transmitted since the unit was last powered up, or this field was reset.

was last powered up, or this field was reset.

last powered up, or this field was reset. Displays the number of frames for which transmission failed due to

excessive collisions since the unit was last powered up, or this field was reset.

Carrier Sense Errors

Displays the number of times the carrier sense condition was lost or never asserted since the unit was last powered up, or this field was reset.

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Monitoring and Testing

IP Routing Table

You can obtain information about IP addresses set in the DSU/CSU by using the IP Routing Table screen of the Status branch.

" Procedure

To display the IP routing table:

1. From the Main Menu screen, select Status.

2. From the Status screen, select IP Routing Table. The IP Routing Table screen appears.

main/status/ip_route Customer ID: Node A Model: 3162

IP ROUTING TABLE

Destination Mask Gateway Tbl Hop Proto Intf TTL

000.000.000.000 000.000.000.000 135.026.021.254 D 1 Local Ether 999

135.026.021.000 255.255.255.000 000.000.000.000 R 0 Other Ether 999

135.026.021.105 255.255.255.255 135.026.021.105 L 0 Local NA 999

ESC for previous menu M

efresh

ainMenu Exit

Select Refresh to update the fields.

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Table 5-5. IP Routing Table

Monitoring and Testing

Field

Description

Destination Displays the destination IP address for the route. Mask Displays the subnet mask for the Destination IP address. Gateway Displays the gateway IP address for the route. Tbl Displays a code for the routing table the route resides in. Tbl is one

of:

H D – Default Table. The route is added based on the Default

Gateway Address set in the Ethernet Port Options screen, or the Default Network Destination set in the Communication Protocol Options screen.

H L – Local Table. The Local Table has an entry for each interface

that can have an IP address.

H R – Remote Table. This is the primary routing table, which holds

routes to other devices.

Hop Displays the number of hops in the route to the destination. Proto Displays the protocol used to add the route to the routing table.

Proto is one of:

H RIP – The route was discovered using Routing Information

Protocol.

H Local – The route was added based the DSU/CSU’s local

configuration.

H NMS – The route was added by a Network Management System

using SNMP.

H ICMP – The route was added because an Internet Control

Management Protocol redirect message was received from a router, indicating a better route to the destination.

H Other – None of the above methods was used. This would be

shown for a temporary route added to respond to an IP packet.

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Intf Displays the interface used to reach the destination. Intf is one of:

H COM – The communications port. H Ether – The 10BaseT port. H FDL – The Facility Data Link. H EDL1 – The Embedded Data Link (EDL) for Port 1. H EDL2 – The EDL for Port 2. H NA – Not Applicable

TTL Displays the Time To Live set for the route. 1–998 denotes a

number of seconds; 999 denotes infinity (the route never expires).

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5-11

Monitoring and Testing

Alarms

To display or print alarm messages, you can attach the DSU/CSU, either locally or remotely, to an ASCII terminal or printer. Alarms can also be displayed on a PC that is using a terminal emulation package.

You can route these alarms to the COM port or dial them out using an external device.

Each alarm message contains a customer identification to indicate which remote DSU/CSU is reporting an alarm. For information about customer identification, refer to Setting Customer Identification in Chapter 4, Configuration.

Possible alarm messages are as follows:

H Continuous Loss Of Signal detected at the x Interface

(where x is either Network or DTE).

H Alarm Cleared. Loss Of Signal condition at the x

Interface (where x is either Network or DTE).

H Continuous Out Of Frame condition detected at the x

Interface (where x is either Network or DTE).

H Alarm Cleared. Out Of Frame condition at the x Interface

(where x is either Network or DTE).

H Alarm Indication Signal received at the x Interface (where

x is either Network or DTE).

H Alarm Cleared. Alarm Indication Signal at the x Interface

(where x is either Network or DTE).

H An Excessive Error Rate has been detected at the Network

Interface.

H Alarm Cleared. An Excessive Error Rate at the Network

Interface.

H Yellow Alarm signal received at the x Interface (where x is

either Network or DTE).

H Alarm Cleared. Yellow Alarm signal at the x Interface

(where x is either Network or DTE).

H Continuous Out Of Frame condition detected at synchronous

data port n (where n is the port number).

H Alarm Cleared. Out Of Frame condition at synchronous data

port n (where n is the port number).

H An Excessive Error Rate has been detected at synchronous

data port n (where n is the port number).

5-12

H Alarm Cleared. An Excessive Error Rate at synchronous

data port n (where n is the port number).

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SNMP Traps

Monitoring and Testing

If two alarm conditions are detected at once, the higher priority alarm is reported. However, if an even higher priority alarm is detected before the first alarm is cleared, the later alarm is not reported. (The alarms listed above are in priority order with the highest priority listed first.)

Alarms remain active until the alarm condition is cleared. Also, an alarm clear message is only sent when there are no other alarms active.

For information about alarm configuration options, refer to Alarm and Trap

Configuration Options in Appendix C, Configuration Options.

For troubleshooting information, refer to Troubleshooting on page 5-15.

SNMP traps are unsolicited messages that are sent from the DSU/CSU to an SNMP manager when the DSU/CSU detects certain pre-specified conditions. These traps enable the SNMP manager to monitor the state of the network.

The SNMP Trap configuration option must be enabled for trap messages to be sent over the communications link. You must specify the number of SNMP managers that are to receive traps from this DSU/CSU, an IP address for each SNMP manager specified, and the type of traps to be sent from this DSU/CSU. For more information, refer to Appendix C, Configuration Options.

Trap types consist of the following:

H General traps – Include warmStart and authenticationFailure. The DSU/CSU

sends a warmStart trap after it has been reset to indicate that it has just reinitialized itself. The DSU/CSU sends an authenticationFailure trap when it has received an SNMP protocol message that has not been properly authenticated. These traps are enabled by the General Traps configuration option.

H Enterprise Specific traps – Signify that the DSU/CSU has recognized an

enterprise-specific event. See Table 5-6 for enterprise-specific traps. These traps are enabled by the Enterprise Specific Traps configuration option.

H Link Traps – Identify the condition of the communications interface, either

linkDown (one of the communications interfaces has failed) or linkUp (one of the communications interfaces has just come up). These traps are enabled by the Link Traps configuration option. The communications interfaces for which these traps can be generated are specified by the Link Trap Interfaces configuration option. Table 5-7 defines traps for each interface.

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5-13

Monitoring and Testing

Table 5-6. Enterprise-Specific Trap Definitions

Trap Value

enterpriseClockFail(1) The currently configured primary clock source has failed. enterpriseSelfTestFail(2) A DSU/CSU hardware failure is detected at self-test. This

enterpriseDeviceFail(3) An internal DSU/CSU failure is detected by the operating

enterpriseTestStart(5) A test is initiated. enterpriseConfigChange(6) A configuration option is changed. enterpriseTestClear(105) A test is concluded.

Event

trap is generated after DSU/CSU initialization.

software.

Table 5-7. SNMP Trap per Interface

Interface

T1 Network Up = No alarm or test conditions.

DTE Drop/Insert (DSX-1) Up = No alarm or test conditions, and the interface is

T rap Meaning

Down = Alarm or test conditions.

enabled. Down = Alarm or test conditions, or the interface is

disabled.

Synchronous Data Ports Up = No test conditions, the port is assigned to a network

interface, and both CTS and DSR are ON. Down = Test conditions, the port is unassigned, or either

CTS or DSR is off.

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3162-A2-GB20-40

Troubleshooting

Monitoring and Testing

The DSU/CSU is designed to provide you with trouble-free service. However, Table 5-8 gives you some direction if a problem occurs.

For problems other than those listed in the table, please contact your service representative.

Table 5-8. Troubleshooting (1 of 2)

Symptom

No power 1. The power module is not

Power-On Self-Test fails The DSU/CSU has

Message LOS at Network appears

Message LOS at DTE appears

Possible Cause Solutions

securely attached.

2. The wall receptacle has no power.

detected an internal hardware failure.

1. Network cable problem.

2. No signal is being transmitted at the far end.

3. Facility problem.

1. 1.DTE Drop/Insert (DSX-1) cable problem.

2. No signal being transmitted from the DTE.

1. Check the power module attachment.

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

Contact your service representative.

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

2. Check the far-end status.

3. Contact your facility provider.

1. Check that the DTE Drop/Insert (DSX-1) cable is securely attached at both ends.

2. Check the DTE status.

3162-A2-GB20-40

Message OOF at Network appears

1. Incompatible framing format between the network and the DSU/CSU.

2. Network cabling problem.

3. Facility problem.

August 2000

1. Check that the framing format for the network interface is correct.

2. Check that the network cable is securely attached at both ends.

3. Contact your facility provider.

5-15

Monitoring and Testing

Table 5-8. Troubleshooting (2 of 2)

Symptom SolutionsPossible Cause

Message OOF at DTE appears

Message

Yellow at Network

appears

Message Yellow at DTE appears

Message

AIS at Network

appears

1. Incompatible framing format between the Drop/Insert port on the customer premises equipment and the DSU/CSU.

2. DTE Drop/Insert (DSX-1) cabling problem.

1. Network cable problem.

2. Far-end device has lost framing sync on the line.

3. Facility problem.

DTE has detected an LOS or LOF condition.

1. Upstream device is transmitting an AIS.

2. The network is transmitting an AIS.

1. Check that the framing format for the DTE Drop/Insert (DSX-1) interface is correct.

2. Check that the DTE Drop/Insert (DSX-1) cable is securely attached at both ends.

1. Check that your network cable is securely attached at both ends.

2. Check the status of the far-end device.

3. Contact your facility provider.

1. Check the status of the DTE.

2. Check that the DTE Drop/Insert (DSX-1) cable is securely attached at both ends.

1. Check the status of the upstream device(s).

2. Contact your facility provider.

5-16

Message

AIS at DTE

appears Message EER at

Network appears BPV LED is ON 1. Incompatible line coding

A failure message appears followed by an 8-digit code (x x x x x x x x )

DTE is sending an AIS. Check the DTE.

Facility problem. Contact your facility

format between the DTE and the DSU/CSU.

2. DTE Drop/Insert (DSX-1) cable problem.

Internal DSU/CSU problem. Record the 8-digit code,

August 2000

provider.

1. Check that the line coding format for the DTE Drop/Insert (DSX-1) interface is correct.

2. Check that the DTE cable is securely attached at both ends.

then contact your service representative.

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Test Jacks

Monitoring and Testing

Six test jacks (Figure 5-1) are located on the front panel. The DSU/CSU test jack functions are shown in Figure 5-2 and described in Table 5-9. The Selectable Test Jack branch of the asynchronous terminal menu tree (see Appendix A) allows you to select either Equipment (EQPT) or Network (NET) functionality for the Monitor test jack.

" Procedure

To select either Equipment or Network for the Monitor test jack:

1. From the Main Menu screen, select Control.

2. From the Control screen, select Select Monitor Jack.

3. Select either EQPT (Equipment) or NET (Network) depending on the type of Monitor test jack that you want to implement.

TERMINAL

EQUIPMENT

(DTE)

NET MON EQPT

OutInOutInOut

496-14808

Figure 5-1. Test Jacks

NET

EQPT

Out

Mon Jack: EQPT Mon Jack: NET

RECEIVER

Mon Jack: EQPT Mon Jack: NET

NET

EQPT

Out

LINE

MON

(Selectable)

INTERNAL

CIRCUITRY

(Selectable)

MON

Out

LINE

RECEIVER

NETWORK

496-14875

3162-A2-GB20-40

Figure 5-2. Test Jack Block Diagram

August 2000

5-17

Monitoring and Testing

Table 5-9. Test Jack Functions

Test Jack Name

NET In

(Network In)

NET Out

(Network Out)

EQPT In

(Equipment In)

EQPT Out

(Equipment Out)

MON In

(Monitor In)

MON Out

(Monitor Out)

Function

A break-in test jack that allows a signal to be inserted toward the network by external test equipment.

A break-in test jack that interrupts the signal coming from the network and allows it to be terminated by the external test equipment.

A break-in test jack that allows a signal to be inserted toward the terminal equipment (DTE) by external test equipment.

A break-in test jack that interrupts the signal coming from the terminal equipment (DTE) and allows it to be terminated by the external test equipment.

A monitor jack that is controlled by the Selectable Test Jack branch of the menu tree. If it is set to Equipment (the default), this jack monitors the signal going into the terminal equipment (DTE). If it is set to Network, this jack monitors the signal going into the network.

A monitor jack that is controlled by the Selectable Test Jack branch of the menu tree. If it is set to Equipment (the default), this jack monitors the signal coming from the terminal equipment (DTE). If it is set to Network, this jack monitors the signal coming from the network.

Test Commands

The test commands enable you to run loopbacks and test patterns on the DSU/CSU, and to test the front panel LEDs. These tests can help you isolate areas of trouble if you are having problems with your DSU/CSU.

Use the Test branch of the asynchronous terminal menu tree (see Appendix A) to access all test commands.

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Remote Loopback Tests

The Remote Loopback tests enable you to troubleshoot your circuit by sending the following to a far-end device:

For Networks

H Line loopback up activation sequence for 10 seconds (Line Loopback Up) H Line loopback down activation sequence for 10 seconds (Line Loopback

Down)

For Channels

H V.54 activation sequence to initiate a V.54 Loop 2 (V.54 Loopback Up) H V.54 deactivation sequence to terminate a V.54 Loop 2 (V.54 Loopback

Down)

H ANSI T1.403 (Annex B) activation sequence to initiate a DCLB on the remote

device (FT1 Loopback Up)

H ANSI T1.403 (Annex B) deactivation sequence to terminate a DCLB on the

remote device (FT1 Loopback Down)

Monitoring and Testing

You cannot perform remote loopbacks if any of the local loopbacks are active. If you attempt to do so, the error message Invalid Test Combination appears.

Sending a Line Loopback Up or Down

Procedure

To send a Line Loopback Up or Down sequence on the network to a far-end DSU/CSU:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. In the Send Line Loopback field (under Remote Loopbacks), enter either Up or Down depending on the type of sequence that you want to send.

4. For the Send Line Loopback command, select Send.

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Monitoring and Testing

Sending a V.54 or ANSI FT1 Activation/Deactivation Sequence

Procedure

To send a V.54 or ANSI FT1 activation or deactivation loopback sequence to the far-end DSU/CSU:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Sync Data Port Tests.

3. In the Port field (near the top of the screen), enter either 1 or 2 depending on the synchronous data port that you want to test.

4. In the Send V.54 Loopback field or the Send FT1 Loopback field (under Remote Loopbacks), enter either Up or Down depending on the type of sequence that you want to send.

5. For the appropriate command (Send V.54 Loopback or Send FT1 Loopback), select Send.

Local Loopback Tests

The Local Loopback tests enable you to conduct circuit testing and fault isolation for the digital line. The supported local loopback tests are:

H Line Loopback (LLB) H Payload Loopback (PLB) H DTE Loopback (DLB) H Repeater Loopback (RLB) H Data Channel Loopback (DCLB) H Data Terminal Loopback (DTLB)

NOTE:

DLB is not available when the DTE Drop/Insert (DSX-1) interface is disabled.

The Line Loopback test can be activated and deactivated in response to commands received over the network interface. The Network Initiated LLB configuration option controls whether the DSU/CSU responds to the commands transmitted on the network interface to initiate LLBs (see Appendix C,

Configuration Options).

The Network Initiated DCLB configuration option controls whether the DSU/CSU responds to inband V.54 commands to initiate DCLB for that port (see Appendix C, Configuration Options).

5-20

Local loopback tests can be aborted (Abort Command) at any time. No more than two local loopbacks can be active at any one time. An additional

restriction prohibits certain loopbacks from running at the same time. Valid loopback combinations are identified by YES in Table 5-10.

August 2000

3162-A2-GB20-40

Table 5-10. Valid Loopback Combinations

LLB PLB DLB RLB DCLB DTLB

Monitoring and Testing

LLB PLB DLB RLB DCLB

DTLB

Starting a Line Loopback

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

N/A NO YES YES NO YES NO N/A YES NO NO YES YES YES N/A NO YES YES YES NO NO N/A NO YES NO NO YES NO YES

(on separate ports)

YES YES YES YES YES

(on separate ports)

YES (on separate ports)

CSUDSU

DTE

(DSX-1)

ALL 1s

PORT 1PORT 2

LLB

NETWORK

INTERFACE

496-14319-02

" Procedure

To perform a Line loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. For the Line Loopback command (under Local Loopbacks), select Start.

3162-A2-GB20-40

August 2000

5-21

Monitoring and Testing

Starting a Payload Loopback

The Payload Loopback command (PLB) loops the received signal on the network interface back to the network. The signal is looped back as close to the DTE Drop/Insert (DSX-1) port as possible (after it has passed through the framing circuitry of the DSU/CSU). Framing CRCs and BPVs are corrected.

CSUDSU

DTE

(DSX-1)

" Procedure

To perform a Payload loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. For the Payload Loopback command (under Local Loopbacks), select Start.

Starting a DTE Loopback

The DTE Loopback command (DLB) loops the received signal on the DTE Drop/Insert (DSX-1) port back to the DTE without change.

ALL 1s

PORT 1PORT 2

PLB

NETWORK

INTERFACE

496-14316-02

5-22

CSUDSU

DTE

(DSX-1)

DLB

ALL 1s

PORT 1PORT 2

NETWORK

INTERFACE

496-14317-02

" Procedure

To perform a DTE loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select DTE Tests.

3. For the DTE Loopback command (under Local Loopbacks), select Start.

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3162-A2-GB20-40

Starting a Repeater Loopback

The Repeater Loopback command (RLB) loops the signal being sent to the network back to the DTE Drop/Insert (DSX-1) and data ports. The signal is looped back as close to the network interface as possible (after it has passed through the framing circuitry of the DSU/CSU). Framing CRCs and BPVs are corrected.

Monitoring and Testing

CSUDSU

DTE

(DSX-1)

RLB

PORT 1 PORT 2

NETWORK

INTERFACE

ALL 1s

496-14318-02

" Procedure

To perform a Repeater loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. For the Repeater Loopback command (under Local Loopbacks), select Start.

3162-A2-GB20-40

August 2000

5-23

Monitoring and Testing

Starting a Data Channel Loopback

The Data Channel Loopback command (DCLB) loops the data received from the network interface, for all DS0 channels allocated to the selected port, back to the network. The loopback occurs after the data passes through the port circuitry but before it is sent out the data port.

CSUDSU

DTE

(DSX-1)

DCLBDCLB

ALL 1sALL 1s

PORT 1PORT 2

NETWORK

INTERFACE

496-14315-02

" Procedure

To perform a Data Channel loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Sync Data Port Tests.

3. In the Port field (near the top of the screen), enter either 1 or 2 depending on the synchronous data port that you want to test.

4. For the Data Channel Loopback command (under Local Loopbacks), select Start.

5-24

August 2000

3162-A2-GB20-40

Starting a Data Terminal Loopback

The Data Terminal Loopback command (DTLB) loops the data received from the selected port, for all DS0 channels allocated to the port, back out of the port. This loopback occurs after the data passes through the port circuitry but before it reaches the T1 framer.

Monitoring and Testing

CSUDSU

" Procedure

Aborting Loopbacks

DTE

(DSX-1)

ALL 1s

DTLBDTLB

PORT 1PORT 2

NETWORK

INTERFACE

496-14314-02

To perform a Data Terminal loopback:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Sync Data Port Tests.

3. In the Port field (near the top of the screen), enter either 1 or 2 depending on the synchronous data port that you want to test.

4. For the Data Terminal Loopback command (under Local Loopbacks), select Start.

3162-A2-GB20-40

Use the Abort Tests command to stop all loopback tests or any selected loopback test currently active on the DSU/CSU.

" Procedure

To abort one or more loopback tests:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Abort Tests.

NOTE:

To verify the abort procedure, use the System and T est Status screen in the Status branch.

August 2000

5-25

Monitoring and Testing

Test Patterns

Use test pattern commands to send, monitor, and abort test patterns. Available test patterns are:

H QRSS – A quasi-random signal source approximating live data that can be

monitored for logic errors (on the network and the data ports).

H 1-in-8 – A test pattern consisting of a one (1) followed by seven zeros (on the

network only).

H 511 – A pseudo-random bit sequence (PRBS) that is 511 bits long (on the

data ports only). This is a PRBS 2

Use a monitor command to monitor a QRSS test pattern over all the channels on the network interface, or to monitor QRSS or 511 test patterns on the channels allocated to an individual port. A monitor command provides the number of errors detected in the test pattern (5 digits, maximum 99999).

Only one test pattern can be active at a time on one port. Valid combinations are identified by YES in Table 5-11.

Table 5-11. Valid Send Test Pattern Combinations

QRSS (Network)

QRSS (Port)

1-in-8 (Network)

511 (Port)

N/A NO NO NO

NO YES (on

NO NO N/A NO

NO N/A N/A YES (on

–1 test.

QRSS (Port)

separate ports)

1-in-8 (Network)

N/A YES (on

511 (Port)

separate ports)

Sending Network QRSS or Network 1-in-8 Test Patterns

Procedure

To send a Network QRSS or Network 1-in-8 test pattern:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. In the Send field (under Pattern Tests), enter either QRSS or 1in8 depending on the type of test pattern that you want to send.

4. For the Send command (under Pattern Tests), select Start.

5-26

August 2000

3162-A2-GB20-40

Sending Port QRSS or Port 511 Test Patterns

Procedure

To send a Port QRSS or Port 511 test pattern:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Sync Data Port Tests.

3. In the Port field (near the top of the screen), enter either 1 or 2 depending on the synchronous data port that you want to test.

4. In the Send field (under Pattern Tests), enter either QRSS or 511 depending on the type of test pattern that you want to send.

5. For the Send command (under Pattern Tests), select Start.

Monitoring Network QRSS Test Patterns

Procedure

Monitoring and Testing

To monitor a Network QRSS test pattern:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Network & DTE Tests.

3. For the Monitor QRSS command (under Pattern Tests), select Start.

Monitoring Port QRSS or Port 511 Test Patterns

Procedure

To monitor a Port QRSS or Port 511 test pattern:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Sync Data Port Tests.

3. In the Port field (near the top of the screen), enter either 1 or 2 depending on the synchronous data port that you want to test.

4. In the Monitor field (under Pattern Tests), enter either QRSS or 511 depending on the type of test pattern that you want to monitor.

5. For the Monitor command (under Pattern Tests), select Start.

3162-A2-GB20-40

August 2000

5-27

Monitoring and Testing

Aborting Test Patterns

Use the Abort Tests command to stop all test patterns or any selected test pattern active on the DSU/CSU.

" Procedure

To abort test patterns:

Lamp Test

Use the Lamp Test command to start or stop a test of the DSU/CSU front panel LEDs.

Starting a Lamp Test

1. From the Main Menu screen, select Test.

2. From the Test screen, select Abort Tests.

Aborting a Lamp Test

Procedure

To start a Lamp test:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Device Tests.

3. For the Lamp Test command, select Start.

Procedure

To abort the Lamp test:

1. From the Main Menu screen, select Test.

2. From the Test screen, select Device Tests.

3. For the Lamp Test command, select Stop.

5-28

August 2000

3162-A2-GB20-40

Displaying DSU/CSU Test Status

Use the System and Test Status screen to display the active tests for the DSU/CSU. Table 5-12 lists these messages.

" Procedure

To display test status:

1. From the Main Menu screen, select Status.

2. From the Status screen, select System and Test Status.

Table 5-12. Test Status Messages

Monitoring and Testing

Message

No Test Active No tests are currently active. LLB Test Active The network interface is in Line loopback. PLB Test Active The network interface is in Payload loopback. DLB Test Active The DTE Drop/Insert (DSX-1) port is in DTE loopback. RLB Test Active The DTE Drop/Insert (DSX-1) port is in Repeater

DCLB Test Active, Port n Port n is in a Data Channel loopback. DTLB Test Active, Port n Port n is in a Data Terminal loopback. QRSS Test Active, Network A QRSS test pattern is being sent on the network

1–8 Test Active, Network A 1-in-8 test pattern is being sent on the network

Mon QRSS Test Active, Network

QRSS Test Active, Port n A QRSS test pattern is being sent to the network on the

511 Test Active, Port n A 511 test pattern is being sent to the network on the

Description

loopback.

interface.

interface. A QRSS test pattern is being monitored on the network

interface.

channels allocated to port n.

3162-A2-GB20-40

Mon QRSS Test Active, Port n

Mon 511 Test Active, Port n A 511 test pattern is being monitored on the channels

DLB Test, External Contact The DTE Drop/Insert (DSX-1) port is being held in DTE

Lamp Test Active The Lamp test is currently active.

A QRSS test pattern is being monitored on the channels allocated to port n.

allocated to port n.

loopback by the external contact.

August 2000

5-29

Monitoring and Testing

This page intentionally left blank.

5-30

August 2000

3162-A2-GB20-40

Asynchronous Terminal Menu

The menu tree on the next page shows the structure and relationship of the user interface screens.

3162-A2-GB20-40

August 2000

A-1

Asynchronous Terminal Menu

Main

System and

Test Status

DTE Channel

Network Channel

Display

Cross Connect

Status

Display

Port

Assignment

Display

Network

Network DTE

Status

Performance

Statistics

Sync Data

Port

Display

LEDs

Network &

Clear

Statistics

Sync Data

Identity

DTE T ests

Sync Data

Port T ests

Ports

Test

Device

Copy Ports

Tests

Configuration Control

Abort Tests

Configuration

Edit/Display

Cross

Connect

Call

Directories

Call

Setup

General Options

Administer

Password

Customer

User

Interface

Start

Download

Alarms & T raps

Select

Monitor Jack

Select

LEDs

Management

and

Communication

Reset

Device

DTE to

Network

Assignments

Sync Data

Port

Assignments

Communication

Port

Communication

Protocol

Clear

Assignments

External

Device

General SNMP

Management

Telnet

Sessions

Ethernet

Port

SNMP NMS

Security

SNMP

Traps

00-16827

A-2

3162-A2-GB20-40August 2000

Technical Specifications

Overview

The technical specifications for the standalone DSU/CSUs are listed in Table B-1.

Table B-1. Model 3162 DSU/CSU Technical Specifications (1 of 2)

Specifications

POWER REQUIREMENTS

AC Power Module

POWER CONSUMPTION AND DISSIPATION

DTE DROP/INSERT (DSX-1) INTERFACE

Physical Interface Framing Format Coding Format DTE Line Equalization

Send AIS

NETWORK T1 INTERFACE

Physical Interface (USA) Physical Interface (Canada) Framing Format Coding Format Line Build-Out (LBO) ANSI PRM Bit Stuffing Yellow Alarm Generation

Criteria

Refer to the labeling on the AC power module for input requirements

16.0 watts, 55.0 Btu per hour at 1 15 volts (AC power)

DB15 socket D4, ESF AMI, B8ZS 5 selectable ranges from 0 to 655 feet (0 to 196.5 meters) Selectable

RJ48C CA81A using adapter cable D4, ESF AMI, B8ZS

0.0 dB, –7.5 dB, –15 dB, –22.5 dB Selectable A T&T TR 62411 Selectable

3162-A2-GB20-40

LOOPBACKS

Standard Additional

A T&T TR 54016, AT&T TR 62411, ANSI T1.403.1989 RLB (Repeater Loopback), DLB (DTE Loopback), V.54 Loop 2 and Loop 3, ANSI T1.403 Annex B Fractional T1 Loopback

August 2000

B-1

Technical Specifications

Table B-1. Model 3162 DSU/CSU Technical Specifications (2 of 2)

Specifications Criteria

PORT INTERFACE

Standards Rates

APPROVALS Refer to the product labeling CLOCKING SOURCES T1 network interface, Port 1, internal clock, DTE

PHYSICAL DIMENSIONS

Height Width Depth

WEIGHT 2.4 pounds (1.1 kg) ENVIRONMENT

Operating Temperature Storage Temperature Relative Humidity Shock and Vibration

EIA 530-A, V.35, RS-449, X.21 Nx64 – 64K-1.536 Mb Nx56 – 56K-1.344 Mb

Drop/Insert (DSX-1) interface or external clock

2.13 inches (5.4 cm)

7.63 inches (19.4 cm)

12.13 inches (30.8 cm)

32°F to 122°F (0°C to 50°C) –4°F to 158°F (–20°C to 70°C) 5%—95% (noncondensing) Withstands normal shipping and handling

B-2

3162-A2-GB20-40August 2000

Configuration Options

Overview

The DSU/CSU configuration option tables contain a list of all configuration options and their available selections. In the tables, the top line of each

configuration option entry indicates the factory default setting.

The configuration options are arranged into functional groups:

H Network Interface Configuration Options (Table C-1) H DTE Interface Configuration Options (Table C-2)

H Sync Data Port Configuration Options (Table C-3) H Cross Connect Configuration Options

— DTE-to-Network Assignment Options (Table C-4) — Sync Data Port Assignment Options (Table C-5)

H General Configuration Options (Table C-6) H User Interface Configuration Options

— Communication Port Configuration Options (Table C-7) — External Device Configuration Options (Table C-8) — Telnet Sessions Configuration Options (Table C-9) — Ethernet Port Configuration Options (Table C-10)

H Alarm and Trap Configuration Options (Table C-1 1) H Management and Communication Configuration Options

— Communication Protocol Configuration Options (Table C-12) — General SNMP Management Configuration Options (Table C-13) — SNMP NMS Security Configuration Options (Table C-14)

3162-A2-GB20-40

— SNMP Traps Configuration Options (Table C-15)

August 2000

C-1

Configuration Options

Network Interface Configuration Options

Table C-1. Network Interface Configuration Options (1 of 2)

Line Framing Format: ESF (Factory 1) D4 (Factory 2) D4 ESF

The framing format to be used on the network interface.

D4 – Configures for the D4 framing format. ESF – Configures for the Extended Superframe format. Line Coding Format: B8ZS (Factory 1) AMI (Factory 2)

AMI B8ZS

The line coding format to be used on the network interface.

AMI – Configures for the Alternate Mark Inversion coding format. B8ZS – Configures for the Bipolar 8 Zero Suppression coding format. Bit Stuffing: 62411

62411 Disable

Determines when bit stuffing is performed to meet the ones density requirements for data transmission on the network.

62411 – Specifies that a one be inserted in the data stream after 15 consecutive zeros or when the density of ones falls below 12.5% (complies with A T&T TR 62411).

Disable – Disables bit stuffing so that ones density is not enforced.

NOTES: – To comply with Canadian DOC CS-03 regulations, equipment installed

Line Build Out (LBO): 0.0

0.0 –7.5 –15 –22.5

The line build out (LBO), in decibels, for the signal transmitted to the network.

in Canada must be configured to select 6241 1.

– This configuration option is only available if the network interface line

coding format is set to AMI.

C-2

Management Link: Disable Enable Disable

Specifies whether Facility Data Link (FDL) is enabled. Selecting Enable allows SNMP or Telnet traffic to flow over the 4 kbps data link provided by FDL. Running SNMP or Telnet over FDL requires an end-to-end FDL connection and cannot be terminated within the network.

Enable – Enables the FDL management link for SNMP or Telnet. Disable – Disables the FDL management link.

NOTES: – This configuration option is only available if the framing format is set to

ESF.

– This configuration option is not available if EDL is enabled. – If the local DSU/CSU’s FDL is enabled, the remote DSU/CSU’s FDL

must also be enabled.

3162-A2-GB20-40August 2000

HP 3162 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

About This Guide

Document Purpose and Intended Audience

Document Summary

Product-Related Documents

Reference Documents

Introduction

Overview

Features

DTE Drop/Insert (DSX-1) Interface

Asynchronous Terminal Interface Support

Alarm Message Capability

Telnet Access

SNMP Management Support

Physical Description

Installation

Overview

Application Examples

SNMP or Telnet Connection Examples

Important Instructions

Cabling Example

Power-On Self-Test

Operation

Overview

Front Panel LEDs

Initiating an Asynchronous Terminal Session

Ending an Asynchronous Terminal Session

Recovering Asynchronous Terminal Operation

Menu Organization

Using Asynchronous Terminal Screens

Entering a Password to Gain Access

Displaying LED Conditions

Changing Configuration Options

Displaying or Editing Configuration Options

Saving Edit Changes

Configuration

Overview

Setting Customer Identification

Configuring the 10BaseT Port

Configuring the COM Port for SNMP or Telnet Access

Configuring the COM Port for Management

Setting the IP Address

Selecting the Link Layer Protocol

Configuring DS0 Channels

Displaying DS0 Channel Assignments

Allocating DS0 Channels from the DTE Drop/Insert Interface to the Network Interface

Configuring DS0 Channels for Robbed Bit Signaling

Allocating Data Ports Using the Block or ACAMI Assignment Method

Allocating Data Ports Using the Individual Channel Assignment Method

Clearing DS0 Channel Allocation

Establishing Access Security on the COM Port

Setting a Password

Selecting the Timing Source

Providing Backup Capability

Monitoring and Testing

Overview

Self-Test Results

Device Health and Status

Performance Reports

Ethernet Statistics

IP Routing Table

Alarms

SNMP Traps

Troubleshooting

Test Jacks

Test Commands

Remote Loopback Tests

Sending a Line Loopback Up or Down

Sending a V.54 or ANSI FT1 Activation/Deactivation Sequence

Local Loopback Tests

Starting a Line Loopback

Starting a Payload Loopback

Starting a DTE Loopback

Starting a Repeater Loopback

Starting a Data Channel Loopback

Starting a Data Terminal Loopback