Paradyne 3165-A2, 3160-A3, 3164-A2, 3161-B3 User Manual

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ACCULINK® DSU/CSU

Models 3160-A3, 3161-B3,

3164-A2, and 3165-A2

Operator’s Guide

Document No. 3160-A2-GB21-90

February 2001

Notice

This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, tr ansc ribed, store d in a re trie v al syst em, or tr ans lated into a n y huma n or com puter l anguag e in an y form or by any means, electronic, mechanic al , ma gne tic, manual or otherwise, or dis cl os ed to third parties without th e 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.

Standalone

FCC Registration number: See label on unit Ringer Equivalence number (REN): See label o n unit Canadian Certification number: See label on unit Canadian DOC Load number: See label on unit

Carrier Card

FCC Registration number: See label on unit Ringer Equivalence number (REN): See label o n unit Canadian Certification number: See label on unit Canadian DOC Load number: See label on unit

Warranty, Sales, Service, and Training Information

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

Internet:



www.paradyne.com/warranty Telephone:



representative.

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

Visit the Paradyne World Wide Web s i te at

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

www.paradyne.com

. (Be sure to register your warranty at

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 number and title of this document in your correspondence. Please include your name and phone number if you are willing to provide additional clarification.

userdoc@paradyne.com

. Include the

Trademarks

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

February 2001 3160-A2-GB21-90

Importan t Safety Instructions

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

2. This product (when not powered by the optional direct feed cable) 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 , u se an o utl et tes ter or a voltmeter to check t he ac re cep tac le for the presence o f e arth 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 an ything to rest on th e pow er cord and d o not locat e the produc t where pe rsons will walk on the pow er cord.

5. Do not attempt to service this product yourself, as opening or remo vi ng covers may expose you to dan gero us hi gh 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 ca n create a v oltag e potent ial betwee n the earth groun ds of two or more b uil dings . If pro ducts installed in separate buildings are Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if necessary, implement corrective action prior to interconnecting the products.

9. This product contains a coin cell lithium battery that is only to be replaced at the factory. 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. remplacement incorrect de la batterie. Remplacer uniquement avec une batterie du même type. Mettre au rebut les batteries usagées conformément aux instructions du fabricant.

10. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:

— Never install telephone wiring during a lightning storm. — Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. — Neve r tou ch uninsulated telephone wires or terminals unless the telephon e l ine has been disconnected at t he

network interface.

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

electric shock from lightning.

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

interconnected

, the voltage potential may cause a hazardous condition.

There is a

Attention:

Caution:

Il y a danger d’explosion s’il y a

3160-A2-GB21-90 February 2001

Direct Feed Power Supply Warning

WARNING:

When energizing this product with the supplied direct feed power cable, connect only to a SELV (Safety Extra Low Voltage) power sourc e with a maximum available output of less than 240 VA. Power configurations which utilize the direct feed cable to energize the equipment must only be installed by a qualified electrician in restricted area access locations in accordance with articles 110-16, 110-17, and 110-18 of the National Electric Code (NEC), and articles 2-308, 2-310, 2-312, 2-314, 2-200, and 2-202 of the Canadian Electric Code (CEC).

A readily accessible disconnect device as part of the building installation shall be incorporated in fixed wiring. The disconnect devic e (a 24 or 48 Vdc, 15 or 20 A circuit breaker or s witc h) m ust be incl uded in the ungrounded supply conductor. Over current protection must be a 24 or 48 Vdc, 15 or 20 A fuse or circuit breaker.

EMI Notices

UNITED STATES – EMI NOTICE:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, ma y cause harmful interf erence to radio comm unications. Ope ration of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

The authority to operate this equipment is conditioned by the requirements that no modifications will be made to the equipment unless the changes or modifications are expressly approved by Paradyne Corporation.

CANADA – EMI NOTICE:

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

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

February 2001 3160-A2-GB21-90

Government Requirements and Equipment Return

Certain governments require that instructions pertaining to CSU and modem 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 equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. The label is located on the bottom of the stan dal on e 316 0, 3164, or 3165 DSU/CSU , and on the 3161 DSU/CSU’s circuit card. If requested, this information must be provided to the telephone company.

2. There are two types of telephone lines associated with the standalone equipment. 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’s configuration must correspond to the T1 line’s parameters. The standalone 3160, 3164, or 3165 DSU/CSU’s internal modem connects to the Public Switched Telephone Network using a USOC Type RJ11C jack. The Facility Interface Code 02LS2 along with the RJ11C jack should be specified to the telephone company when ordering a dial line for the modem. The 3161 DSU/CSU connects to the T1 network using the multi-line USOC-type RJ48H jack and does not have a PSTN interface.

316x DSU/CSU Facility Interface Codes

Code Description

04DU9-BN 1.544 Mbps superframe format (SF) without line power 04DU9-DN 1.54 4 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. The ringer equival ence nu mber (R EN) is used to determine the q uantity of de vi ces w hich may be connected to the telephone line. Excessive RENs on the telephone line may result in the devices not ringing in response to an incoming call. In most, but not all areas, the sum of the RENs should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total RENs, contact the telephone company to determine th e maximum RENs for the calling area.

4. If the 316x 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 n otify th e cust omer as soon a s poss ib le . Also, you will be advis ed of your ri ght to fil e a com plain t with the FCC if you believe it is necessary.

5. The telephone com pany may make ch anges in its facilitie s , equipment, operations, o r pro ce dure s th at c ou ld a f fect the operation of the e quipment. If this happe ns, the te lephone c ompan y will pro vide adv anc e notice in o rder f or you to make the necessary modifications in order to maintain uninterrupted service.

3160-A2-GB21-90 February 2001

6. If you experience trouble with this equipm ent, please contact your sales or service rep res enta t ive (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:

—

Internet:

—

Telephone:

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

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.

7. The equipment’s modem cannot be used on pub lic coin service pro vided by the telephone compan y. Connection to Party Line Service is su bje ct to st ate t ariffs. (Conta ct the st ate pu bl ic uti lity comm ission, pub l ic se rvice commis sion or corporation commission for information.)

8. FCC compliant telephone line cords with modular plugs are 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.

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

Call our automated response system to receive current information via fax or to speak with a

Canada NOTICE TO USERS OF THE CANADIAN TELEPHONE NETWORK

The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. 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. In some cases, the company’s inside wi ring ass oc ia t ed with a single line individual se rvice may be extende d by means of a certified connector assembly (telephone extension cord). 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 made by an authorized Canadian maintenance facility 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 to disconnect the equipment.

CAUTION:

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

If your equipment is in need of repair, return it using the procedures described on page A in the front of this document.

February 2001 3160-A2-GB21-90

About This Guide

1 Introduction

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

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

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

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

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

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

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

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

Front Panel Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Integral Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Async Terminal Interface Support . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

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

SNMP Management Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

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

Standalone DSU/CSU Front Panel . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Standalone DSU/CSU Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . 1-5

2 Installation

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

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

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

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Important Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

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Optional Power Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Installing the +24 Vdc Power Supply. . . . . . . . . . . . . . . . . . . . . . . 2-5

Installing the Single –48 Vdc Power Supply . . . . . . . . . . . . . . . . . 2-6

Installing the Redundant –48 Vdc Power Supply . . . . . . . . . . . . . 2-7

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Cabling Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

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Power-Up Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

3160-A2-GB21-90 February 2001

Contents

3 Operation



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



Using the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Test Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5



Displaying Unit Identity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9



Setting Customer Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

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Selecting the DTE Drop/Insert or Data Port for LED Display. . . . . . . . 3-12



Displaying LED Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13



Changing Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Displaying/Editing Configuration Options . . . . . . . . . . . . . . . . . . . 3-16

Saving Edit Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Selecting/Copying to a Specific Port . . . . . . . . . . . . . . . . . . . . . . . 3-18



Configuring the DSU/CSU for SNMP or Telnet Access . . . . . . . . . . . . 3-19

Selecting the Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Setting the IP Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Selecting the Link Layer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Specifying the Community Name(s) and Access Type(s) . . . . . . . 3-24



Configuring SNMP Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Enabling SNMP Trap Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Selecting the Number of Trap Managers. . . . . . . . . . . . . . . . . . . . 3-27

Configuring a Destination for SNMP Traps . . . . . . . . . . . . . . . . . . 3-28



Configuring DS0 Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Displaying DS0 Channel Assignments . . . . . . . . . . . . . . . . . . . . . 3-36

Allocating Data Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Block or ACAMI Assignment Method. . . . . . . . . . . . . . . . . . . . . . . 3-40

Individual Channel Assignment Method . . . . . . . . . . . . . . . . . . . . 3-41

Allocating DS0 Channels from the DTE Drop/Insert Interface

to the Network Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Clearing DS0 Channel Allocation . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

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Providing Backup Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45



Selecting the Timing Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Configuring for Network Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

Configuring for External Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47



Establishing Access Security on a Port . . . . . . . . . . . . . . . . . . . . . . . . 3-48

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Setting a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49



Entering a Password to Gain Access. . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

February 2001 3160-A2-GB21-90



Acquiring/Releasing the User Interface . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Acquiring the Active User Interface . . . . . . . . . . . . . . . . . . . . . . . . 3-52

Releasing the Active User Interface . . . . . . . . . . . . . . . . . . . . . . . 3-53

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Enabling/Disabling the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54



Using the Integral Modem in Standalone DSU/CSUs . . . . . . . . . . . . . 3-55

Entering Numbers in the Phone Directories . . . . . . . . . . . . . . . . . 3-55

Initiating a Call for Front Panel Pass-Through Operation . . . . . . . 3-57

Initiating a Call for PC, ASCII Terminal/Printer, or

SNMP Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

Disconnecting the Modem Connection . . . . . . . . . . . . . . . . . . . . . 3-60

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Enabling the Communication Port for Carrier-Mounted DSU/CSUs . . 3-61

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Deactivating the Alarm Relay for Carrier-Mounted DSU/CSUs . . . . . . 3-64

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Resetting the DSU/CSU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65



Download Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65



User Interface Access Security for Standalone DSU/CSUs. . . . . . . . . 3-67

Changing User Interface Access Security . . . . . . . . . . . . . . . . . . . 3-68

Contents

4 Maintenance



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

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Self-Test Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

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Device Health and Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

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Performance Reports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

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Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

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SNMP Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

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Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

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Test Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

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Test Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

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Remote Loopback Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Sending a Line Loopback Up or Down . . . . . . . . . . . . . . . . . . . . . 4-20

Sending a V.54/ANSI FT1 Activation/Deactivation . . . . . . . . . . . . 4-21



Local Loopback Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Starting a Line Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Starting a Payload Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Starting a DTE Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Starting a Repeater Loopback. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Starting a Data Channel Loopback . . . . . . . . . . . . . . . . . . . . . . . . 4-27

Starting a Data Terminal Loopback . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Aborting Loopbacks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29

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Test Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Sending Test Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

3160-A2-GB21-90 February 2001

iii

Contents

Monitoring Test Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33

Aborting Test Patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34



Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Starting a Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Aborting a Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36



Displaying DSU/CSU Test Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

A Front Panel Menu B Technical Specifications



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

C Configuration Options



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



DTE Interface Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . C-2



Port Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3



Network Interface Configuration Options . . . . . . . . . . . . . . . . . . . . . . . C-8



Channel Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10



General Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16



User Interface Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . C-18



Alarm Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-28



Management Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . C-32



Configuration Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-42

D Pin Assignments



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



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



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



MODEM Port Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4



AUX Port Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5



COM Port Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6



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



EIA-530-A-to-RS-449 Cable Interface . . . . . . . . . . . . . . . . . . . . . . . . . D-9



EIA-530-A-to-V.35 Cable Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . D-11



EIA-530-A-to-X.21 Cable Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . D-13



Serial Crossover Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-14



Power Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-15



Optional DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-15



External Clock Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-16

February 2001 3160-A2-GB21-90

E SNMP MIB Objects



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



MIB II (RFC 1213) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

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

Interface Group, MIB II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

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

ICMP Group, MIB II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13

TCP Group, MIB II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13

UDP Group, MIB II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13

Transmission Group, MIB II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13

SNMP Group, MIB II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14



DS1/E1 MIB (RFC 1406) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14

Near End Group, DS1/E1 MIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14

Far End Group, DS1/E1 MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-18

DS1 Fractional Group, DS1/E1 MIB . . . . . . . . . . . . . . . . . . . . . . . E-19



RS-232-like MIB (RFC 1317) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19

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

Asynchronous Port Table, RS-232-like MIB . . . . . . . . . . . . . . . . . E-22

Synchronous Port Table, RS-232-like MIB . . . . . . . . . . . . . . . . . . E-23

Input Signal Table, RS-232-like MIB . . . . . . . . . . . . . . . . . . . . . . . E-23

Output Signal Table, RS-232-like MIB. . . . . . . . . . . . . . . . . . . . . . E-24



Generic-Interface MIB Extensions (RFC 1229) . . . . . . . . . . . . . . . . . . E-24

Generic Interface Test Table, Generic Interface MIB . . . . . . . . . . E-25



Enterprise MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-27



Correlation between Menu Commands and SNMP Objects . . . . . . . . E-28

Contents

F IP Network Addressing Scenarios



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



Scenario 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2



Scenario 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-3



Scenario 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-4



Scenario 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-5



Scenario 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-6

G Front Panel Emulation



Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1



Installing Front Panel Emulation Software . . . . . . . . . . . . . . . . . . . . . . G-1



Starting Front Panel Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-3

3160-A2-GB21-90 February 2001

Contents

H Asynchronous Terminal Operation



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



Before Using the Asynchronous Terminal . . . . . . . . . . . . . . . . . . . . . . H-1



Initiating an Asynchronous Terminal Session . . . . . . . . . . . . . . . . . . . H-2



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



Menu Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-4



Using Asynchronous Terminal Screens. . . . . . . . . . . . . . . . . . . . . . . . H-5



Setting Customer Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-7



Displaying LED Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-8



Changing Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-9

Displaying or Editing Configuration Options . . . . . . . . . . . . . . . . . H-9

Saving Edit Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-11



Establishing Access Security on a Port . . . . . . . . . . . . . . . . . . . . . . . . H-12



Setting a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-13



Entering a Password to Gain Access. . . . . . . . . . . . . . . . . . . . . . . . . . H-14



Configuration Worksheets for the Asynchronous Terminal Interface. . H-15

I Equipment List

Glossary

Index

February 2001 3160-A2-GB21-90

About This Guide

Document Purpose and Intended Audience

This operator’s guide contains installation, operation, and maintenance information for the ACCULINK 3160, 3161, 3164, or 3165 Data Service Unit (DSU)/Channel Service Unit (CSU).

It is designed for installers and users of DSU/CSUs familiar with the operation of digital data communication equipment.

Document Summary

Section Description

Chapter 1, Chapter 2,

Chapter 3,

Chapter 4,

Appendix A,

Appendix B,

Specifications

Appendix C,

Options

Appendix D, Appendix E,

Objects

Introduction Installation

Operation

Maintenance

Front Panel

Technical

Configuration

Pin Assignments SNMP MIB

Describes the 316x DSU/CSUs and their features. Describes how to install the standalone units and make

connections. (Instructions for the carrier-mounted 3161 DSU/CSU are cont ained in the

3161 DSU/CSU General Information Guide

No. 3100-A2-GK40.) Provides instructions for using the front panel, changing

configuration options, establishing security, and using the internal modem.

Contains procedures for monitoring, testing, and troubleshooting.

Contains a menu tree showing all the main front panel functions.

Contains technical spec ifi ca tions for the 316x DSU/CSUs .

Contains all the co nfiguration options and default settings.

Shows the pin assignments for connectors and cables. Describes the MIB objects supported by the DSU/CSUs.

ACCULINK 3151 CSU and

, Document

3160-A2-GB21-90 February 2001

vii

About This Guide

Section Description

Appendix F,

Addressing Scenarios

Appendix G,

Emulation

Appendix H,

Terminal Operation

Appendix I,

Glossary Index

IP Network

Front Panel

Asynchronous

Equipment List

Product-Related Documents

Document Number Document Title

3000-A2-GA31

3000-A2-GB41

Provides sample IP addressing schemes.

Explains how to use front panel em ula tion so ftwar e in l ieu of the front panel.

Explains how to use a VT100-compatible terminal to configure and control the unit.

Contains order numbers for cables and other related parts.

Defines abbreviations and terms used in this document. Lists key terms, concepts, and sections in alphabetical

order.

COMSPHERE 3000 Series Carrier Installation Manual

COMSPHERE –48 VDC Central Office Power Unit Installation Guide

3100-A2-GK40

ACCULINK 3151 CSU and 3161 DSU/CSU General Information Guide

3162-A2-GB20 3163-A2-GB20 3166-A2-GB20

ACCULINK 3162 DSU/CSU User’s Guide ACCULINK 3163 DSU/CSU User’s Guide ACCULINK 3166 DSU/CSU User’s Guide

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

Paradyne documents are also available on the World Wide Web at

www.paradyne.com

. Select

Library → Technical Manuals.

February 2001 3160-A2-GB21-90

viii

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:



Definitions of Managed Objects for the DS1 and E1 Interface Types

RFC 1406, January 1993

MIBII

. RFC 1213, March 1991

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

3160-A2-GB21-90 February 2001

About This Guide

February 2001 3160-A2-GB21-90

Introduction

Overview

The ACCULINK network and the customer premises equipment, converting signals received from the DTE (Data T erminal 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 3160 provides two synchronous data ports while the Model 3164 provides four synchronous data ports. The Model 3165 provides one synchronous data port, but does not provide the DTE Drop/Insert (DSX-1) interface.

316x DSU/CSU acts as an interface between the T1 digital

Features

The Model 3161 (carrier-mounted DSU/CSU) provides two ports in addition to the DTE Drop/Insert (DSX-1) interface and is designed to fit into the COMSPHERE 3000 Series Carrier.

For more information about the carrier-mounted DSU/CSU, refer to the

3151 CSU and 3161 DSU/CSU General Information Guide 3000 Series Carrier Installation Manual

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



Software configuration menu displayed via a liquid crystal display (LCD) to permit quick and easy operation, and elimination of complicated hardware strapping.



Local or remote configuration and operation flexibility.



Several loopback capabilities and test pattern generators.



DTE Drop/Insert (DSX-1) capability.



Alarm message disp lay/pr in t capab il ity.



Front panel emulation via Windows-based Front Panel Emulation software.

and the

ACCULINK

COMSPHERE



Integral modem for standalone DSU/CSUs.

3160-A2-GB21-90 February 2001

1-1

1. Introduction



Asynchronous (async) terminal interface support.



Telnet access for remote async terminal operations.



Network management provided through industry-standard Simple Network Management Protocol (SNMP).

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. This is available on 2-port and 4-port DSU/CSUs.

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.

Front Panel Emulation

The DSU/CSU offers functionality through Front Panel Emulation software that is similar to that provided by the DSU/CSU front panel. The functionality of the front panel is available by clicking on the function keys with the mouse rather than by pressing keys from the actual front panel.

Integral Modem

The standalone DSU/CSUs contain an integral low-speed (2400 bps), V .22bis dial modem that enables communication with remote devices such as another 316x DSU/CSU, an ASCII terminal or printer, or a PC running the 3100 Series Front Panel Emulation software.

Async Terminal Interface Support

The DSU/CSU can be configured and managed from an asynchronous (async) terminal. The async terminal’s full screen display uses a menu hierarchy similar to the DSU/CSU’s front panel. You can perform device management and configuration operations as if you are using the DSU/CSU’s front panel, but you do not have the limitation of the 2-line, 16-character LCD.

Telnet Access

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

February 2001 3160-A2-GB21-90

1-2

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. An external LAN Adapter can be connected to either the COM port or the auxiliary (AUX) port to provide Ethernet connectivity . Also , the DSU/CSU can be daisy chained together by connecting the COM port of one device to the AUX port of the other, providing SNMP connectivity.

The SNMP management system can communicate to the DSU/CSU remotely through the Facility Data Link (FDL) or (for 2-port and 4-port DSU/CSUs) the synchronous data port’s Embedded Data Link (EDL).

1. Introduction

Physical Description

The 316x Series consists of a Model 3160 DSU/CSU (2-port), a Model 3164 DSU/DSU (4-port), a Model 3165 DSU/CSU (1-port), and a Model 3161 (carrier-mounted) DSU/CSU.

For more information about the carrier-mounted DSU/CSU, refer to the

3151 CSU and 3161 DSU/CSU General Information Guide 3000 Series Carrier Installation Manual

Standalone DSU/CSU Front Panel

The standalone DSU/CSU front panel contains,



One 2-line, 16-alphanumeric-character-per-line liquid crystal display (LCD)



One 7-button keypad (three Function and four directional keys)



Twelve light-emitting diodes (LEDs)



Six test jacks for the Model 3160/3164 DSU/CSU, and two test jacks for the Model 3165 DSU/CSU

The front panels are shown in Figure 1-1, 3160 DSU/CSU Front P anel, Figure 1-2,

3164 DSU/CSU Front Panel, and Figure 1-3, 3165 DSU/CSU Front Panel.

ACCULINK

and the

COMSPHERE

3160-A2-GB21-90 February 2001

1-3

1. Introduction

ACCULINK

3160

MON EQPT

NET

OutInOutInOut

FAIL TEST SIG OOF ALRM

Figure 1-1. 3160 DSU/CSU Front Panel

LCD

F1 F2 F3

EER SIG ALRM PDVOOF BPV

NETWORK RXD

DTR TXD CTS RTS

496-14936

ACCULINK

3164

MON EQPT

NET

OutInOutInOut

FAIL TEST SIG OOF ALRM

Figure 1-2. 3164 DSU/CSU Front Panel

LCD

F1 F2 F3

EER SIG ALRM PDVOOF BPV

NETWORK RXD

DTR TXD CTS RTS

496-14937

February 2001 3160-A2-GB21-90

1-4

ACCULINK

3165

LCD

F1 F2 F3

NET

MON

Out

FAIL TEST SIG OOF ALRM

NETWORK

Figure 1-3. 3165 DSU/CSU Front Panel

EER

DTR TXD CTS RTS

RXD

PORT

1. Introduction

495-14567-01

Standalone DSU/CSU Rear Panel

The standalone DSU/CSU rear panel contains the connectors required for the operation of the DSU/CSU (Figure 1-4, 3160 DSU/CSU Rear Panel, Figure 1-5,

3164 DSU/CSU Rear Panel, and Figure 1-6, 3165 DSU/CSU Rear Panel). The

connectors and their functions are listed in Table 1-1, Standalone DSU/CSU Rear

Panel Connectors.

PORT 2

POWER

Figure 1-4. 3160 DSU/CSU Rear Panel

PORT 1

AUX

COM DSX-1MODEM

EXT CLK

NET

99-16234

3160-A2-GB21-90 February 2001

1-5

1. Introduction

POWER

NEC

CLASS 2

INPUT

AUX PORT

CAUTION:

AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK

Figure 1-5. 3164 DSU/CSU Rear Panel

POWER

NEC

CLASS 2

INPUT

PORT 1

CAUTION:

AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK

COM PORT MODEM

DTE

NETWORK

PORT 4PORT 3

PORT 2PORT 1CLOCK IN

494-14564

NETWORK

Figure 1-6. 3165 DSU/CSU Rear Panel

495-14565-01

February 2001 3160-A2-GB21-90

1-6

1. Introduction

Table 1-1. Standalone DSU/CSU Rea r Panel Conn ector s

Name Function

POWER Supplies power to the DSU/CSU by providing an

attachment for the ac power module or the optional dc

power cable (+24 or –48 Vdc). AUX PORT Supports SNMP LAN Adapter or daisy-chain connections. COM PORT Provides access to a locally connected PC, ASCII terminal

or printer, SNMP management link, or async terminal

interface. MODEM Provides a connection to the integral modem for access to

a remotely connected PC, ASCII terminal or printer, SNMP

management link, or async terminal interface. NETWORK Provides access to the T1 network. DTE (Model 3160/3164) Provides access to the DTE Drop/Insert (DSX-1) interface. CLOCK IN (Models

3160/3164) PORTs 1–4 Used to connect the customer's synchronous data DTE to

Used to attach an external clock to the DSU/CSU.

the DSU/CSU.

3160-A2-GB21-90 February 2001

1-7

1. Introduction

February 2001 3160-A2-GB21-90

1-8

Installation

Overview

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

NOTE:

Installation instructions for the carrier-mounted DSU/CSU are located in the

ACCULINK 3151 CSU and 3161 DSU/CSU General Information Guide

COMSPHERE 3000 Series Carrier Installation Manual

the

and

Application Examples

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

The DSU/CSU is connected to the customer’s equipment through one of the synchronous data ports (PORTs 1–4) or the DTE Drop/Insert (DSX-1) interface. It is connected to the T1 digital network through the network interface.

NOTE:

The DTE Drop/Insert (DSX-1) interface is only available on 2-port and 4-port DSU/CSUs.

Some common applications for the DSU/CSU are:



Point-to-P oint LAN interconnection (Figure 2-1, Point-to-Point Application

Example).



Shared access to network-based services (Figure 2-2, Shared Access

Application Example).



Fractional T1 network applications (Figure 2-3, Fractional T1 Application

Example).

3160-A2-GB21-90 February 2001

2-1

2. Installation

NETWORK

LAN

ROUTER

DSU/CSU

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

PBX

DSU/CSU

LAN

ROUTER

Figure 2-2. Shared Access Application Example

DSU/CSU

NETWORK SERVICES

LAN

ROUTER

496-15003-01

496-15004-01

LAN

ROUTER

DSU/CSU

FRACTIONAL

LAN

ROUTER

NETWORK

DSU/CSU

LAN

ROUTER

DSU/CSU

LAN

ROUTER

496-15005-01

Figure 2-3. Fractional T1 Application Example

February 2001 3160-A2-GB21-90

2-2

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:



Directly connecting the COM port to the SNMP or Telnet device (Figure 2-4,

Direct Connection).



Connecting the COM port to a network device (e.g., a router) (Figure 2-5,

Connection through a Router).



Connecting the COM port or the AUX port to an external LAN Adapter for Ethernet connectivity (Figure 2-6, Connection through a LAN Adapter).



Daisy chaining the COM port of one device to the AUX port of the other (Figure 2-7, LAN Adapter and Daisy Chaining).



Remotely accessing the DSU/CSU through the Facility Data Link (FDL) or the synchronous data port’s Embedded Data Link (EDL) (Figure 2-8, Remote

Access through FDL/EDL).

NOTE:

2. Installation

EDL is only available on 2-port and 4-port DSU/CSUs.

ETHERNET

PPP/SLIP

LAN

ROUTER

DSU/CSU

Figure 2-4. Direct Connection

ETHERNET

LAN

ROUTER

PPP/SLIP

DSU/CSU

ara

dyn

NETWORK

496-15006-01

NETWORK

496-15007-01

Figure 2-5. Connection through a Router

3160-A2-GB21-90 February 2001

2-3

2. Installation

ETHERNET

LAN

ROUTER

LAN

ADAPTER

DSU/CSU

PPP

Figure 2-6. Connection through a LAN Adapter

DSU/CSU

ETHERNET

LAN

ROUTER

PPP

DSU/CSU

NETWORK

496-15008-01

NETWORK

FDL/EDL

LAN

ADAPTER

PPP

Figure 2-7. LAN Adapter and Daisy Chaini n g

DSU/CSUDSU/CSU

LAN

ROUTER

NETWORK

PPP

LAN

ADAPTER

Figure 2-8. Remote Access through FDL/EDL

496-15009-01

ETHERNET

496-15010-01

February 2001 3160-A2-GB21-90

2-4

Important Instructions

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

2. Installation

For a complete listing of the safety instructions, see at the beginning of this guide.

HANDLING PRECAUTIONS FOR STATIC-SENSITIVE

DEVICES

This product is designed to pro tect sensitive components from damage due to electrostatic discharge (ESD) during normal operation. When performing installation procedures, however, take proper static control precautions to prevent damage to equipment. If you are not sure of the

496-15104

proper static control precautions, contact your nearest sales or service representative.

Optional Power Sources

The DSU/CSU is typically powered by the ac power module. Use the following procedures only if you want to use an optional SELV (Safety Extra Low Voltage) dc power source.

Using the optional dc power cable, the DSU/CSU is capable of operating on either a +24 Vdc power source, –48 Vdc single source battery, or –48 Vdc redundant source batteries (for power backup). To use dc power, choose one of the following power supply types.

Impor tant Sa fety Instruc tio ns

Installing the +24 Vdc Power Supply

To install the DSU/CSU using a +24 Vdc SELV power supply, refer to Figure 2-9,

+24 Vdc Power Supply Pinouts, and use the following procedure.

Procedure

To install the +24 Vdc power supply:

1. Connect the green wire to a suitable ground.

2. Connect the white wire to the +24 Vdc return.

3. Connect the orange wire to the +24 Vdc source.

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

5. Plug the power connector into the DSU/CSU.

3160-A2-GB21-90 February 2001

2-5

2. Installation

DSU/CSU POWER

PLUG

1 2 3 4 5 6

BLACK

RED

GREEN

WHITE

ORANGE

BLUE

Figure 2-9. +24 Vdc Power Supply Pinouts

Installing the Single –48 Vdc Power Supply

TO CUSTOMER-SUPPLIED BATTERY

X X

GROUND +24 VDC RETURN +24 VDC SOURCE

99-14298-02

To install the DSU/CSU using a single source –48 Vdc SEL V pow er supply , ref er to

Figure 2-10, –48 Vdc Single Source Power Supply Pinouts, and use the following

procedure.

Procedure

To install the –48 Vdc sing le sou r ce power sup pl y:

1. Connect the black and red wires to the –48 Vdc return source.

2. Connect the green wire to a suitable ground.

3. Connect the orange and blue wires to the –48 Vdc input source.

4. Cut the white wire off at the outer insulation.

5. Plug the power connector into the DSU/CSU.

DSU/CSU POWER

PLUG

1 2 3 4 5 6

BLACK

RED

GREEN

WHITE

ORANGE

BLUE

TO CUSTOMER-SUPPLIED BATTERY

–48 VDC RETURN

GROUND

–48 VDC INPUT

99-14299-02

Figure 2-10. –48 Vdc Single Source Power Supply Pinouts

February 2001 3160-A2-GB21-90

2-6

Installing the Redundant –48 Vdc Power Supply

To install the DSU/CSU using a redundant –48 Vdc SELV power supply, refer to

Figure 2-11, –48 Vdc Redundant Source Power Supply Pinouts, and use the

following procedure.

Procedure

To install the redundant –48 Vdc power supply:

1. Connect the black wire to the –48 Vdc return source B.

2. Connect the red wire to the –48 Vdc return source A.

3. Connect the green wire to a suitable ground.

4. Connect the orange wire to the –48 Vdc input source B.

5. Connect the blue wire to the –48 Vdc input source A.

6. Cut the white wire off at the outer insulation.

7. Plug the power connector into the DSU/CSU.

2. Installation

DSU/CSU POWER

PLUG

1 2 3 4 5 6

BLACK

RED

GREEN

WHITE

ORANGE

BLUE

TO CUSTOMER-SUPPLIED BATTERY

–48 VDC RETURN B –48 VDC RETURN A

GROUND

–48 VDC INPUT B –48 VDC INPUT A

Figure 2-11. –48 Vdc Redundant Source Power Supply Pinouts

99-14300-02

3160-A2-GB21-90 February 2001

2-7

2. Installation

Cabling Examples

The DSU/CSU is supplied with an ac power module and a VF cable for the integral modem.

TERMINAL

COM

PORT

PORT 2

POWER

PORT 1

MODEM

PORT

AUX

COM DSX-1MODEM

Optional cables are described in Appendix D,

Pin Assignments

Figure 2-12, Cabling Examples, illustrates some cabling examples.

OR OR

MANAGER

3164 DSU/CSU

EXT CLK

NETWORK

PORT

DSU/CSU

NET

3160

PSTN

MODEM

PORT

NETWORK

PORT

MODEM

SNMP

FRONT

PANEL

T1 NETWORK

NETWORK

PORT

COM PORT MODEM

AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR T1 NETWORK

NETWORK

DTE

PORT 4PORT 3

PORT 2PORT 1CLOCK IN

POWER

SERIAL

PORT

3164

DSU/CSU

COM PORT

POWER

NEC

CLASS 2

INPUT

AUX PORT

CAUTION:

POWER

ROUTER

T1 OR SERIAL CONNECTIONS DIAL CONNECTIONS

SNMP

MANAGER

TERMINAL

99-16250

Figure 2-12. Cabling Examples

February 2001 3160-A2-GB21-90

2-8

Power-Up Self-Test

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

The self-test includes a basic processor test, a limited memory test, a code checksum test, and basic verification tests of the internal components. The front panel LCD displays the progress and pass/fail status of these power-up tests.

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

1. Once the DSU/CSU is plugged in, the In Progress screen appears and the Fail

LED blinks ON and Off continuously.

Self-Test: In Progress

Configuration Options

2. Installation

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

Off. Then, the LCD begins to flash characters and numbers in the same pattern, alternating with the flashing LEDs.

3. If the self-test is successful, the Passed screen appears for one second, the

Fail LED turns Off and the OK LED lights.

Self-Test: Passed

F2 F3

3160-A2-GB21-90 February 2001

2-9

2. Installation

If the self-test fails, the Failed screen appears for five seconds. The Fail LED lights, and an eight-digit failure code (

xxxxxxxx

) is displayed for use by service personnel to determine the cause of the self-test failure. The DSU/CSU continues to try to operate. If you are in doubt about the results of the self-test, use the Self-Test Health command to display the status of this test (see

Self-Test Health

Self-Test: Failed

in Chapter 4,

xxxxxxxx

Maintenance

F2 F3

4. The top-level menu screen appears.

DSU ESF Stat Test Cnfig

February 2001 3160-A2-GB21-90

2-10

Operation

Overview

This chapter contains information for operating your DSU/CSU. It includes a description of the front panel and sample procedures for configuring the DSU/CSU.

NOTE:

Additional information for the carrier-mounted DSU/CSU is located in the

ACCULINK 3151 CSU and 3161 DSU/CSU General Information Guide

COMSPHERE 3000 Series Carrier Installation Manual

the

and

Using the Front Panel

The standalone DSU/CSU front panel (Figure 3-1, Standalone DSU/CSU Front

Panel) consists of an LCD, a keypad, test jacks, and 12 LEDs. The

carrier-mounted DSU/CSU faceplate contains test jacks and 12 LEDs, however, the LCD and keypad are located on the Shared Diagnostic Control Panel (SDCP) of the 3000 Series Carrier. For more information about the SDCP, refer to the

COMSPHERE 3000 Series Carrier Installation Manual

NOTE:

You can display a graphical representation of the DSU/CSU front panel on an attached PC (see Appendix G,

Front Panel Emulation

3160-A2-GB21-90 February 2001

3-1

3. Operation

ACCULINK

3160

LCD

F1 F2 F3

MON EQPT

NET

OutInOutInOut

FAIL TEST SIG OOF ALRM

Figure 3-1. Standalone DSU/CSU Front Panel

EER SIG ALRM PDVOOF BPV

NETWORK RXD

DTR TXD CTS RTS

496-14936

LCD

The LCD (Figure 3-2, LCD) displays two types of data:



Messages such as alarms, command/test completion, and action in progress



Front panel menu tree information (see Appendix A,

Front Panel Menu

)

F2 F3

Figure 3-2. LCD

The LCD displays status messages as requested via the Device Health and Status branch of the front panel menu (see

Maintenance

). In addition, the highest level status message appears on the front

Device Health and Status

in Chapter 4,

panel automatically if no front panel action has occurred at the DSU/CSU for the past five minutes.

The LCD also lists commands, configuration options, and test results. In most cases, the top line shows the command or option name and default value, while the second line displays options and responses. When a response is required, select from the options displayed directly above the Function keys (F1, F2, F3); make your choice by pressing the corresponding Function key.

February 2001 3160-A2-GB21-90

3-2

Keypad

3. Operation

The 7-button keypad (Figure 3- 3, Keypad) enables you to navigate through the menu tree and select choices presented on the second line of the LCD.

F2 F3

Figure 3-3. Keypad

Use the key to mov e up the menu.

Use the key to exit any part of the menu in which you may be operating. You immediately return to the top-level menu screen shown on the front panel menu (see Appendix A,

Front Panel Menu

Use the Function (F1, F2, F3) keys to make selections from the choices presented on the second line of the LCD. When this line presents choices, it is generally divided into three sections, each displayed directly above one of the Function keys. When your choice appears above one of the Function keys, press that key to select that choice.

3160-A2-GB21-90 February 2001

F2 F3

3-3

3. Operation

The scroll keys ( and ) serve one of two functions, depending on whether a menu screen or a data entry screen appears on the front panel.

For data entry screens, the key scrolls one character to the left while the

key scrolls one character to the right.

For menu screens, the key scrolls to the previous menu choice while the

key scrolls to the next menu choice.

Test Jacks

F2 F3

If a choice is available to the left of the screen, the character ← appears on the top line. If a choice is available to the right of the screen, the → character appears on the top line. If choices are available to both the right and the left of the screen, two arrows appear (⇔). The arrows indicate that you must use the scroll keys to bring the additional options onto the screen.

Test jacks are located on the DSU/CSU front panel (Figure 3-4, Test Jacks

(Standalone DSU/CSU)). These are described in

Maintenance

. (The 3165 provides only the Network Monitor In and Network

Test Jacks

in Chapter 4,

Monitor Out test jacks.)

NET MON EQPT

OutInOutInOut

496-14808

Figure 3-4. Test Jacks (Standalone DSU/CSU)

February 2001 3160-A2-GB21-90

3-4

LEDs

3. Operation

There are twelve LEDs on the DSU/CSU front panel. The five LEDs on the right (Figure 3-5, DSU/CSU LEDs) are shared between the DTE Drop/Insert (DSX-1) interface and the data ports. Refer to

for LED Display

on page 3-12 to choose which port’s status the LEDs display.

Selecting the DTE Drop/Insert or Data Port

NOTE:

The DTE Drop/Insert (DSX-1) interface is only available on 2-port and 4-port DSU/CSUs.

FAIL

TEST SIG OOF ALRM

EER SIG ALRM PDVOOF BPV

NETWORK TXD

DTR RXD CTS RTS

493-14301

Figure 3-5. 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:



System LEDs (Table 3-1)



Network Interface LEDs (Table 3-2)



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



Data Port LEDs (Table 3-4)

3160-A2-GB21-90 February 2001

3-5

3. Operation

Table 3-1. System LEDs

Name Color Meaning

FAIL

TEST

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

ON:

The DSU/CSU is operational and has power.

OFF:

The DSU/CSU is performing a power-up self-test or a

system failure has occurred.

BLINKING : F AST BLINK:

selected by the SDCP.

Yellow Indicates a system failure or a self-test.

ON: OFF: BLINKING

Yellow A system test is in progress.

ON:

the network, or externally.

OFF:

A software downlo ad is in prog ress.

The carrier-mounted DSU/CSU is currently

A device error/fault is detected or a reset has just occurred.

No system failures are detected.

: A self-test is in progress.

A loopback or pat tern test has be en ini tiated eithe r lo cally, by

No tests are active.

Table 3-2. Network Interface LEDs

Name Color Meaning

SIG

OOF

ALRM

EER

Green Monitors the signal being received from the network.

ON:

A recoverable signal is being received from the network.

OFF:

The signal can not be reco v er ed from th e netw ork (a L oss o f

Signal condition exists).

Yellow Monitors Out Of Frame (OOF) conditio ns on the received

network 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.

Yellow Indicates whether an alarm condition exists on the received

network signal.

ON:

An alarm condition (LOS, LOF, EER, Yellow, AIS) exists on the received network signal. Use the Device Health and Status command to determine the alarm type.

OFF:

No alarm condition exists on the network interface signal.

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

the network interface.

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

NOTE:

ON:

The EER has been exceeded on the network interface.

OFF:

The EER has not been exceeded on the network interface.

February 2001 3160-A2-GB21-90

3-6

3. Operation

NOTE:

The DTE Drop/Insert (DSX-1) interface is only available on 2-port and 4-port DSU/CSUs.

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

Name Color Meaning

SIG

OOF

ALRM

PDV

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

(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) .

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

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.

Yellow Indicates whether an alarm condition exists on the received DTE

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.

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

Drop/Insert (DSX-1) signal.

: 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.

BPV

3160-A2-GB21-90 February 2001

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.

3-7

3. Operation

Table 3-4. Data Port LEDs

Name Color Meaning

DTR

TXD

RXD

CTS

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

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.

Yellow Monitors activity on interchange circuit BA (CCITT 103)

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:

synchronous data DTE.

Yellow Monitors activity on interchange circuit BB (CCITT 104)

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

ON: OFF: CYCLING:

synchronous data DTE.

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

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

ON: OFF:

Both ones and zeros are being received from the

Ones are being sent to the synchronous data DTE.

Zeros are being sent to the synchronous data DTE.

Both ones and zeros are being sent to the

CTS is being asserted by the DSU/CSU.

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 DTE.

OFF:

RTS is not being asserted.

–

February 2001 3160-A2-GB21-90

3-8

NOTE:

3. Operation

The following procedures are examples only.

depending on the model of the DSU/CSU.

Displaying Unit Identity

The identity of the DSU/CSU (serial number, model number, software revision level, hardware revision level, and customer identification) is available through the Status branch of the front panel menu (see Appendix A,

The customer identification is the only identity number you can change.

Procedure

To display the DSU/CSU’s identity (ID):

1. From the top-level menu screen, select Stat.

DSU ESF Stat Test Cnfig

F2 F3

Screen displays may vary

Front Panel Menu

2. From the Status screen, press the key until the ID selection appears on the screen.

3. Select ID.

Status: TStat LED ID

F2 F3

4. The following screens appear in the order listed each time you press the

key .

Identity:

xxxxxxx

Ser=

Identity: Mod=

F2 F3

xxxx-xx-xxx

3160-A2-GB21-90 February 2001

F2 F3

3-9

3. Operation

Identity: Cust ID=

xxxxxxxx

Identity: SRev=

Identity: CCA1=

Identity: CCA2=

xx.xx.xx

xxxx-xxx

F2 F3

xxxx-xxx

F2 F3

February 2001 3160-A2-GB21-90

3-10

Setting Customer Identification

The customer identification is the only identity number you can change. It is used to uniquely identify the DSU/CSU.

Procedure

To change the customer identification (CID):

1. From the top-level menu, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, press the key until the CID selection appears on the screen.

4. Select CID.

Control: Reset CID Passwd

3. Operation

F2 F3

5. Use the and keys to position the cursor under the desired character. You must enter a character before the moves the cursor to the next space to the right.

CustID:

xxxxxxxx

Up Down Save

6. Enter the desired ID. Press F1 (Up) and F2 (Down) to scroll up and down through the valid characters/numbers for the customer ID. Valid characters are

through 9, #, -, ., /, A to Z, and blank space. Press F3 (Save) to save the ID.

3160-A2-GB21-90 February 2001

3-11

3. Operation

Selecting the DTE Drop/Insert or Data Port for LED Display

Use the LED command on the Control branch to select which port’s (DTE Drop/Insert or data port) status appears on the five shared LEDs on the front panel.

Procedure

To select a port for LED display:

1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, select LED.

Control: Call Rel LED

The currently selected port name appears on the top line of the LCD. DTE indicates the DTE Drop/Insert (DSX-1) port.

LED Dsply: DTE DTE Prt1 Prt2

4. From the LED Dsply screen, press the Function key that corresponds to the DTE Drop/Insert (DSX-1) or data port for which you want the LEDs to display. Use the scroll keys, if necessary.

Select DTE to monitor the DTE Drop/Insert (DSX-1) port’s SIG, OOF, ALRM, PDV, and BPV status signals on the shared LEDs.

Select a particular data port to monitor the data port’s DTR, TXD, RXD, CTS, and RTS control signals on the shared LEDs.

February 2001 3160-A2-GB21-90

3-12

Displaying LED Conditions

The same conditions monitored by the front panel LEDs can also be monitored by the LED command. This command is most useful when the DSU/CSU is being accessed remotely (see Appendix G, Panel Emulation, no LEDs are shown on the PC’s screen; you must use the Stat command procedure described below to get LED information.

NOTE:

Front Panel Emulation

3. Operation

). When using Front

The following procedure is an example only.

Screen displays may vary

depending on the model of the DSU/CSU.

Procedure

To display LED conditions on the front panel screen:

1. From the top-level menu screen, select Stat.

2. From the Status screen, press the key until the LED selection appears on the screen.

3. From the Status screen, select LED .

Status: Perf TStat LED

4. From the Select LEDs screen, press the Function key that corresponds to T1 interface or the data port for which you want to display LEDs. Use the scroll keys, if necessary.

F2 F3

Select LEDs: T1 Prt1 Prt2

If you chose T1, the LED Display screen lists the LED signals, two at a time, on the second line. A vertical bar at the left of the LED name indicates the condition is ON, while an underscore indicates the condition is Off.

LED Display: _Test _NetSig

3160-A2-GB21-90 February 2001

F2 F3

3-13

3. Operation

If you chose a port, the Port n LEDs screen lists the LED signals, two at a time, on the second line. A vertical bar at the left of the LED name indicates the condition is ON, while an underscore indicates the condition is Off.

Port n LEDs: _DTR _TXD

5. Use the and keys to scroll LED names onto the screen.

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, menus displayed for the Model 3160 (2 ports) and the Model 3164 (4 ports) differ due to the number of ports available. Also, if the DTE Drop/Insert (DSX-1) interface selection is disabled, many of the menu choices do not appear. Be aware that although all options are shown in this guide, what you see on your DSU/CSU varies with your configuration.

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



Active (Activ)

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

– This is the configuration option set currently active for the



Customer 1 (Cust1)

– This is the first of two sets of customer-defined

configuration options. This area can be written to.



Customer 2 (Cust2)

– This is the second of two sets of customer-defined

configuration options. This area can be written to.



Factory 1 (Fact1)

– 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. Factory 1 options are read-only.



Factory 2 (Fact2)

– 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. Factory 2 options are read-only.

February 2001 3160-A2-GB21-90

3-14

3. Operation

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

Configuration Options

, contains a list of the configuration options and defaults.

These groups are:



DTE Interface Configuration Options



Port Configuration Options



Network Interface Configuration Options



Channel Configuration Options



General Configuration Options



User Interface Configuration Options



Alarm Configuratio n Option s



Management Configuration Options

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



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.



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.

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

Configuration Options

3160-A2-GB21-90 February 2001

3-15

3. Operation

Displaying/Editing Configuration Options

Procedure

To display/edit configuration options:

1. From the top-level menu screen, select Cnfig.

DSU ESF Stat Test Cnfig

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

Load from: Activ Cust1

F2 F3

3. Select Edit.

Choose Funct: Edit Save

F2 F3

4. From the Edit screen, select the functional group you want to edit by pressing the appropriate Function key. Use the scroll keys, if necessary. (The NET selection is shown as an example only.)

Edit: DTE Port NET

The configuration options for the selected functional group appear on the front panel one option at a time. The option name appears on Line 1 with the current value next to it. To reach other options, use the Next and Previous selections to scroll forward and backward through the group of options.

February 2001 3160-A2-GB21-90

3-16

NET Framing: ESF Next D4 ESF

3. Operation

Saving Edit Changes

5. Press the appropriate Function key to choose another value. Use the scroll keys, if necessary.

6. Use the Save procedure to save your changes to the Active or Customer area.

Save edit changes to the Active 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.

NOTE:

If you attempt to exit the Edit function after making changes without performing a Save, the DSU/CSU prompts you with

Procedure

To save edit changes:

Save Options?

Choose

Yes

or No.

1. From the Choose Funct screen (one level above the Edit screen, two levels below the top-level menu screen), select Save.

Choose Funct: Edit Save

2. Choose whether you want to save to the Active, Customer 1, or Customer 2 area. Use the scroll keys, if necessary .

Save Edit to: Activ Cust1

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3-17

3. Operation

Selecting/Copying to a Specific Port

For the DSU/CSU, you hav e the capability of selecting a specific port to configure, and then (for 2-port and 4-port DSU/CSUs) copying the configuration options from that port to another port (or to all ports).

NOTE:

The following procedure is an example only.

Screen displays may vary

depending on the model and configuration of the DSU/CSU .

Procedure

To select a specific port to configure:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, select Port.

Edit: DTE Port NET

5. From the Port Select screen, press the Function key that corresponds to the port you want to configure. Use the key to scroll addition ports onto the screen, if necessary. Configure the port (see Appendix C,

Options

F2 F3

Configuration

Port Select: Copy Prt1 Prt2

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3-18

F2 F3

3. Operation

Procedure

To copy the configuration options to one or all ports:

1. From the Port Select screen, select Copy.

Port Select: Copy Prt1 Prt2

2. Select the port

from

which you want to copy the configuration options using

the corresponding Function key.

Copy From: Prt1 Prt2 Prt3

3. Select the port

F2 F3

which you want to copy the configuration options using the

corresponding Function key. Or, press F1 (All) to choose to copy to all ports.

Copy To: All Prt1 Prt2

Configuring the DSU/CSU for SNMP or Telnet Access

To configure the DSU/CSU for SNMP or Telnet access:



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

Appendix C,



Select and configure the port that provides the link to the SNMP or Telnet

Configuration Options

system.



Set the Internet Protocol (IP) address and subnet mask needed to access the DSU/CSU (see Appendix F,



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

IP Network Addressing Scenarios

the SNMP or Telnet system.



For SNMP links, specify the two community names (and their access levels) that are allowed to access the device’s Management Information Base (MIB).



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



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

Appendix C,

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Configuration Options

3-19

3. Operation

Selecting the Port

The SNMP manager, Telnet device, or network device (e.g., a router) can be directly connected to the communications (COM) port. An external LAN Adapter can be connected to either the COM port or the auxiliary (AUX) port to provide Ethernet or Token Ring connectivity. Also, the DSU/CSU can be daisy chained together by connecting the COM port of one device to the AUX port of the other, providing SNMP or Telnet connectivity. Use the MODEM port when accessing the DSU/CSU through a dial-up connection.

The COM port can support either synchronous or asynchronous PPP, or asynchronous SLIP at data rates of up to 38,400 bps. The AUX port can support data rates up to 38,400 bps. The MODEM port can support either synchronous or asynchronous PPP, or asynchronous SLIP at data rates of up to 2400 bps.

The example shown below assumes that the COM port is being used as the link to the SNMP or Telnet system.

Procedure

To select the COM port as the SNMP or Telnet link:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the User selection appears on the screen.

5. Select User.

Edit: Chan Gen User

F2 F3

6. Press F1 (Next) until the Com Use configuration option appears.

7. Select Mgmt to configure the COM port as the SNMP or Telnet link.

Com Use: Next Mgmt ASCII

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F2 F3

Setting the IP Address

3. Operation

The IP address is the address used by the SNMP or Telnet system to access the DSU/CSU (see Appendix F,

IP Network Addressing Scenarios

). 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 IP address is set for the MODEM port, the COM port, or the AUX port (with LAN Adapter or daisy chain), depending on which one has been chosen as the SNMP or Telnet communication link. 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 other ports.

Procedure

To assign an IP address to the COM port:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Mgmt selection appears on the screen.

5. Select Mgmt.

Edit: User Alarm Mgmt

6. From the Mgmt Config screen, select Gen.

Mgmt Config: Gen Trap

7. Press F1 (Next) until the Com IP Adr configuration option appears.

NOTE:

Steps 8 and 9 describe the process for entering an IP address. This process applies to any IP address.

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3-21

3. Operation

8. Press F2 (Edit) to edit the IP address. You have the option of using F3 (Clear) to reset the IP address to the factory default

Com IP Adr: Next Edit Clear

000.000.000.000

9. Use the and keys to position the cursor under the digit you want to change. Press F1 (Up) to increment the digit or F2 (Down) to decrement the digit. In this example, you would press once to place the cursor under the middle digit in the first digit field, then press F1 (Up) once to change the 0 to a 1. Continue in this manner to change the other digits.

000.000.000.000 Up Down Save

10. When you are through changing the IP address, you

F2 F3

must

press F3 (Save) to

save the value. Otherwise, the original value will be retained.

010.155.111.222 Up Down Save

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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.

NOTE:

The carrier-mounted DSU/CSU does not support synchronous operation on the COM port.

The standalone DSU/CSU implementation of PPP supports the following:



Full negotiation of PPP’s Link Control Protocol (LCP).



Active negotiation of LCP when the connection is established.



Maximum Request Unit (MRU) sizes up to 1500 bytes, but the DSU/CSU will attempt to negotiate down to 500 bytes.



The DSU/CSU provides a unique LCP magic number derived from the unit serial number and the elapsed time.

3. Operation



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).

The DSU/CSU implementation of SLIP supports a fixed MRU size of 1006 bytes. Before selecting the protocol, you must first select the port to be used as the

communications link. Refer to

Selecting the Port

on page 3-20. This example

assumes that the COM port is being used as the communications link.

Procedure

To select the link layer protocol:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Mgmt selection appears on the screen.

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3-23

3. Operation

5. Select Mgmt.

Edit: User Alarm Mgmt

F2 F3

6. From the Mgmt Config screen, select Gen.

Mgmt Config: Gen Trap

7. Press F1 (Next) until the Com Link configuration option appears.

8. Press F2 (PPP) or F3 (SLIP).

Com Link: Next PPP SLIP

F2 F3

Specifying the Community Name(s) and Access Type(s)

You have the capability of specifying up to two community names (community name 1 and community name 2) to be used by external SNMP managers when trying to access objects in the DSU/CSU’s MIB. Once you specify the community name(s), you must then specify the type of access to the MIB that SNMP managers in the community are permitted to have.

Procedure

To specify the community name 1 and its access type:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Mgmt selection appears on the screen.

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3-24

5. Select Mgmt.

Edit: User Alarm Mgmt

3. Operation

F2 F3

6. From the Mgmt Config screen, select Gen.

Mgmt Config: Gen Trap

7. Press F1 (Next) until the CommunityName1 configuration option appears.

8. Press F2 (Edit) to edit the community name.

CommunityName1: Next Edit Clear

F2 F3

NOTE:

Steps 9 and 10 describe the process for entering text strings for Mgmt configuration options. This process applies to entering any text strings into Mgmt configuration options.

9. Use the and keys to position the cursor under the character you want to change. Press F1 (Up) or F2 (Down) to scroll through the valid numbers/characters for the text string.

public Up Down Save

The F1 (Up) key scrolls through the ASCII character set in the following order: numbers (0–9), lowercase letters (a–z), uppercase letters (A–Z), space character, ASCII symbols (ascending order, based on ASCII code), and the End of Line symbol (← ) The ← erases all characters to the right of the cursor.

10. When you are through changing the community name, you

must

press F3

(Save) to save the value. Otherwise, the original value will be retained.

11. Press F1 (Next) until the Access 1 configuration option appears.

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3-25

3. Operation

12. Press F2 (Read) or F3 (R/W).

Access 1: Next Read R/W

The Read selection allows read-only access (SNMP “Get”) to the accessible objects in the MIB when community name 1 is used. The R/W selection allows Read/Write access (SNMP “Get” and “Set”) to the objects in the MIB. Write access is allowed for all objects specified as read/write in the MIB. Read access is allowed for all objects specified as read-only or read/write.

Configuring SNMP Traps

A trap is an unsolicited message that is 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, Chapter 4,

Enabling SNMP Trap Messages

Maintenance

F2 F3

Configuration Options,

SNMP Traps

and

Procedure

To enable SNMP trap messages from this DSU/CSU:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Alarm selection appears on the screen.

5. Select Alarm.

Edit: User Alarm Mgmt

6. Press F1 (Next) until the SNMP Trap configuration option appears.

F2 F3

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3-26

3. Operation

7. Press F2 (Enab) to enable trap messages over the SNMP management link.

SNMP Trap: Next Enab Disab

Selecting the Number of Trap Managers

If you intend to issue traps to an SNMP manager(s) from this device, you must specify the number of SNMP managers that are to receive the traps.

Procedure

To specify the number of SNMP managers to receive traps from this device:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Mgmt selection appears on the screen.

5. Select Mgmt.

F2 F3

Edit: User Alarm Mgmt

6. From the Mgmt Config screen, select Trap.

Mgmt Config: Gen Trap

7. Select the number of SNMP managers to receive traps (from 1 through 6) by using the appropriate Function key. Use the scroll keys, if necessary.

Num Trap Mgrs:1 Next 1 2

F2 F3

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3. Operation

Configuring a Destination for SNMP Traps

A destination must be configured for each SNMP trap manager specified. This configuration option is displayed for the number of trap managers specified by the Number of Trap Managers configuration option.

Procedure

To configure an IP address for the SNMP trap manager:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Mgmt selection appears on the screen.

5. Select Mgmt.

Edit: User Alarm Mgmt

F2 F3

6. From the Mgmt Config screen, select Trap.

Mgmt Config: Gen Trap

7. Press F1 (Next) until the Trap

F2 F3

IP Address configuration option appears.

8. Press F2 (Edit) to edit the IP address. You have the option of using F3 (Clear) to reset the IP address to the factory default

the IP Address

9. Press F1 (Next) until the Trap

on page 3-21 for more information on setting an IP address.

Destination configuration appears, and select

000.000.000.000

. Refe r to

Setting

the destination for the SNMP trap by using the appropriate Function key. Use the scroll keys, if necessary.

Trapn Dst: Next None Com

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3-28

F2 F3

Configuring DS0 Channels

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



Display the DS0 assignments for the network, DTE Drop/Insert (DSX-1), and data port interfaces.



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



Allocate DS0 channels on the network or DTE Drop/Insert (DSX-1) interface to particular data ports.



Clear (deallocate) all DS0 channels from the network, DTE Drop/Insert (DSX-1), or data port interface.



Map data from one port to another.

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 3-6, Example of Channel Allocation, for an example of a conceptual diagram of a channel configuration.

3. Operation

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

Configuration Options

allocation:

1. Complete the Network Interface and the DTE Drop/Insert (DSX-1) Interface tables (unless the DTE Drop/Insert interface is disabled) as shown in the examples in Figure 3-7, Example of Interface Worksheet for Network Interface, and Figure 3-8, Example of Interface Worksheet for DTE Drop/Insert Interface.

2. Complete the Robbed Bit Signaling (RBS) information worksheet as shown in the examples in Figure 3-9, Example of RBS Information Worksheet.

3. Using the worksheets shown in Figure 3-10, Port Channel Configuration

Worksheet (Ports 1 and 2), and Figure 3-11, Port Channel Configuration Worksheet (Ports 3 and 4), circle the configuration options needed to

implement the logical channel configuration.

Once you have completed the worksheets, enter this information using the procedures in

Allocating Data Ports

. To complete the configuration worksheets for DS0 channel

on page 3-38.

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3-29

3. Operation

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

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 PRT 3 PRT 4

496-14907-01

Figure 3-6. Example of Channel Allocation

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3-30

Network Interface Network Channel Allocation

3. Operation

N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N16

D1 D2 D3 D4 D5

D9 D10 D11 D12 D15 Prt1 Prt1 Prt1

N17 N18 N19 N20 N21 N22 N23 N24 Allocations:

D24 indicates allocation to DTE Drop/Insert (DSX-1) channels.

–

Prt1

Prt4 indicates allocation to synchronous data ports.

–

Prt3 Prt2 Prt2 Prt2 Prt2 Prt2 Prt2 Prt3

Figure 3-7. Example of Interface Worksheet for Network Interface

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3-31

3. Operation

DTE Drop/Insert (DSX-1) Interface DTE (DSX-1) Channel Allocation

D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16

N1 N2 N3 N4 N5

N9 N10 N11 N12

N13

D17 D18 D19 D20 D21 D22 D23 D24 Allocations:

N24 indicates allocation to network channels.

–

Figure 3-8. Example of Interface Worksheet for DTE Drop/Insert Interface

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3-32

3. Operation

DTE Chan Config Assign: (N1

D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

N1 RBS N2 RBS N3 RBS N4 RBS N5 Data

N9 RBS N10 RBS N11 Data N12 Data

N13 Data

24) Voice (RBS or Data)

–

D16 D17 D18 D19 D20 D21 D22 D23 D24

Figure 3-9. Example of RBS Information Worksheet

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3-33

3. Operation

Port Cha n Conf Options Value

Assign To NET, DTE, Prt2, Prt3, Prt4 Assign By Block, ACAMI, Chan

Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704,

768, 832, 896, 9 60, 10 24 , 1088, 1152, 1216, 1280, 13 44, 1408, 1472, 1536

Nx56: 56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, 952, 1008, 1064, 1120, 1176, 1232, 1288, 1344

15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select One)

Nx56: 56, 112, 168, 2 24, 280 , 336, 3 92, 448 , 504, 560, 61 6, 672

15, 16, 17, 18, 19, 20, 21, 22, 23 (Select One)

Port 1

If Assign By Block

If Assign By ACAMI

Start At Time Slot (N

Port Rate Nx64: 64, 1 28, 192 , 256, 320, 38 4, 448, 512, 5 76, 640 , 704, 7 68

Start At Time Slot (Nx or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

Port 2

Time Slot (Nx or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

If Assign By Chan

Assign To NET, DTE, Prt1, Prt3, Prt4 Assign By Block, ACAMI, Chan

Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704,

If Assign By Block

Start At Time Slot (N

Port Rate Nx64: 64, 1 28, 192 , 256, 320, 38 4, 448, 512, 5 76, 640 , 704, 7 68

If Assign By ACAMI

If Assign By Chan

Start At Time Slot (N

15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select Multiple)

768, 832, 896, 9 60, 10 24 , 1088, 1152, 1216, 1280, 13 44, 1408, 1472, 1536

Nx56: 56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, 952, 1008, 1064, 1120, 1176, 1232, 1288, 1344

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select One)

Nx56: 56, 112, 168, 2 24, 280 , 336, 3 92, 448 , 504, 560, 61 6, 672

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 (Select One)

Time Slot (N 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select Multiple)

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

Figure 3-10. Port Channel Configuration Worksheet (Ports 1 and 2)

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3-34

Port Cha n Conf Options Value

Assign To NET, DTE, Prt1, Prt2, Prt4 Assign By Block, ACAMI, Chan

Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704,

768, 832, 896, 9 60, 10 24 , 1088, 1152, 1216, 1280, 13 44, 1408, 1472, 1536

Nx56: 56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, 952, 1008, 1064, 1120, 1176, 1232, 1288, 1344

15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select One)

Nx56: 56, 112, 168, 2 24, 280 , 336, 3 92, 448 , 504, 560, 61 6, 672

15, 16, 17, 18, 19, 20, 21, 22, 23 (Select One)

Port 3

If Assign By Block

If Assign By ACAMI

Start At Time Slot (N

Port Rate Nx64: 64, 1 28, 192 , 256, 320, 38 4, 448, 512, 5 76, 640 , 704, 7 68

Start At Time Slot (Nx or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

3. Operation

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

Port 4

Time Slot (Nx or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

If Assign By Chan

Assign To NET, DTE, Prt1, Prt2, Prt3 Assign By Block, ACAMI, Chan

Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704,

If Assign By Block

Start At Time Slot (N

Port Rate Nx64: 64, 1 28, 192 , 256, 320, 38 4, 448, 512, 5 76, 640 , 704, 7 68

If Assign By ACAMI

If Assign By Chan

Start At Time Slot (N

15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select Multiple)

768, 832, 896, 9 60, 10 24 , 1088, 1152, 1216, 1280, 13 44, 1408, 1472, 1536

Nx56: 56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, 952, 1008, 1064, 1120, 1176, 1232, 1288, 1344

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select One)

Nx56: 56, 112, 168, 2 24, 280 , 336, 3 92, 448 , 504, 560, 61 6, 672

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 (Select One)

Time Slot (N 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 (Select Multiple)

or Dx): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

Figure 3-11. Port Channel Configuration Worksheet (Ports 3 and 4)

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3-35

3. Operation

NOTE:

The following procedures are examples only.

depending on the model and configuration of the DSU/CSU .

Displaying DS0 Channel Assignments

Use the Display command (in the Channel Configuration branch) to view how the DS0 channels are currently allocated.

Line 1 of the display shows the 24 channels of the selected interface. Pressing the

or key scrolls the channels onto the screen in groups of three. Line 2 displays what is allocated to the DS0 channel listed in Line 1. Symbols used in the display are shown in Table 3-5, Display Channel Symbols.

Table 3-5. Display Channel Symbols

Symbol Meaning

– The DS0 channel is not allocated. Prt

The DS0 channel is allocated to Port n, where n is 1, 2, 3, or 4. The DS0 channel is allocated to the network interface DS0 channel n,

where n can be any number from 1 through 24. The DS0 channel is allocated to the DTE Drop/Insert (DSX-1) interface

DS0 channel n, where n can be any number from 1 through 24.

Screen displays may vary

Procedure

To display the DS0 channel allocation:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Chan selection appears on the screen.

5. Select Chan.

Edit: Port NET Chan

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6. From the Channel Config screen, select Dsply.

Channel Config: Dsply Clear DTE

3. Operation

F2 F3

7. From the Display Chan screen, select NET to display the channels allocated to the network interface. Or, select DTE to display the channels allocated to the DTE Drop/Insert (DSX-1) interface.

Display Chan: NET DTE Ports

8. If you selected NET the channels allocated to the network interface are displayed. Line 1 displays the 24 channels for the network interface, while Line 2 displays what is allocated to the DS0 channel shown in Line 1. Pressing the

or key scrolls the channels onto the screen in groups of three.

N1 N2 N3 D2 D3 Prt1

If you selected DTE, the channels allocated to the DTE Drop/Insert (DSX-1) interface are displayed. Line 1 displays the 24 channels for the DTE Drop/Insert (DSX-1) interface, while Line 2 displays what is allocated to the DS0 channel shown in Line 1.

D1 D2 D3 – N1 N2

F2 F3

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3. Operation

Allocating Data Ports

By using the configuration options, assign a specific port to DS0 channels on either the network interface or the DTE Drop/Insert (DSX-1) interface. The following methods are available to assign DS0 channels to the port:



Block

– 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. Only those initial DS0 channel numbers that provide enough bandwidth (based on the port’s data rate) are displayed on the screen. These channels are automatically assigned to the destination T1 interface (Network or DTE Drop/Insert) when the initial DS0 channel is selected.



ACAMI (Alternate Channel Alternate Block Inversion)

– 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). 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

+1 DS0 channel), does not carry data from the

port, but instead always transmits and receives all ones.



Chan (Channel)

– 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.

Once a port is selected, you have access to the configuration options to complete the port allocation procedure. These configuration options enable you to,



Assign the selected port to the desired interface.



Select the desired method for channel allocation.



Select the port rate and starting channel (if the allocation method is block or ACAMI).



Select the specific channels (if the allocation method is by individual channel).

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3. Operation

Procedure

To select the data port:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Chan selection appears on the screen.

5. Select Chan.

Edit:DTE Port NET Chan

F2 F3

6. From the Channel Config screen, press the key to scroll the ports onto the screen.

7. Select the desired port by pressing its corresponding Function key.

Channel Config: Prt1 Prt2 Prt3

F2 F3

8. The configuration option for the data port channel allocation destination appears on the screen. Select NET to assign this port to the network interface, select DTE to assign this port to the DTE Drop/Insert (DSX-1) interface, or press the key and the appropriate Function key to assign this port to another port.

Assign To:NET Next NET DTE

9. Press F1 (Next) to display the appropriate configuration options on the screen. Use one of the following examples, depending on whether you are assigning by block, ACAMI, or individual channel.

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3. Operation

Block or ACAMI Assignment Method

The Assign By configuration option screen appears after you select a port.

Procedure

To assign by the block or ACAMI method:

1. Press F2 for Block or F3 for ACAMI.

Assign By: Next Block ACAMI

F2 F3

Assign By: Next Block ACAMI

2. Press F1 (Next) to display the next configuration option (Port Rate).

3. Use the or key to scroll the desired port rate onto the screen. Rates scroll in groups of three. Available selections depend on the current base rate selected for the port. Press the corresponding Function key to select the port rate. Then, select Next to display the Start At configuration option on the screen.

Port Rate:384 Next 64 128

NOTE:

For port-to-port mapping, the procedure is complete after the port rate is selected.

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3. Operation

4. The Start At screen displays the configuration option used to select the starting DS0 channel. If the destination selected is the network interface, then the network channels appear on the screen. If the destination selected is the DTE Drop/Insert (DSX-1) interface, then these channels appear on the screen.

The following screen shows an example for the network interface. Use the or key to scroll the desired channel onto the screen. Use the Function keys to select the starting channel. Only those DS0 channel numbers that provide enough bandwidth (based on the configured data rate) to be used as a starting channel number are displayed. Channel allocation for this port can only be cleared by selecting Clear.

Start At:Clear Next Clear N1

Individual Channel Assignment Method

The Assign By configuration option screen appears after you select a port.

Procedure

To assign by the individual channel method:

1. Press the key once to bring the Chan selection onto the screen.

Assign By:Block Next Block ACAMI

2. Press F3 (Chan).

Assign By:Chan Block ACAMI Chan

F2 F3

3. Press F1 (Next) to display the next configuration option (channel allocation).

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3. Operation

4. Line 1 displays the 24 channels for the network interface or the DTE Drop/Insert (DSX-1) interface, depending on which destination was chosen. This example assumes that the network is the destination. Line 2 displays what is allocated to the DS0 channel shown in Line 1. Pressing the or key scrolls the channels onto the screen in groups of three. Select the channel by pressing the Function key under the desired number. Port

appears. The port is assigned to that channel. To deallocate a port, press the Function key under that port number. Pressing the Function key under channels assigned to other ports has no effect.

N1 N2 Next Prt1 Prt2

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

By using the configuration options, you can allocate DS0 channels from the DTE Drop/Insert (DSX-1) interface to the network interface and specify which DS0 channels carry Robbed Bit Signaling (RBS) information for voice channels.

Procedure

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

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Chan selection appears on the screen.

5. Select Chan.

Edit: Port NET Chan

F2 F3

6. From the Channel Config screen, select DTE.

Channel Config: Dsply Clear DTE

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7. From the DTE Channels screen, press F1 to select Assign.

DTE Channels: Assign Voice

3. Operation

F2 F3

8. Press the Function key below the network channel desired. Each time that you press the Function key, the DTE channel number will scroll up one number. If the network channel is currently unassigned (‘‘–” is displayed on Line 2), the DTE channel number initially displays the same number as the corresponding network channel number. However, if the network channel is currently assigned, the DTE channel number is shown as D

Pressing the Function key for D24 wraps the display back to D1. Only those channels that are not already assigned will appear on the LCD when scrolling. The network channels assigned to ports (Prt1...Prt4) are unavailable for assignment.

N1 N2 N3 D1 D2 –

Procedure

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

1. Press from the channel allocation screen to return to the DTE Channels screen.

N1 N2 N3 D1 D2 –

F2 F3

2. From the DTE Channels screen, press F2 to select Voice.

DTE Channels: Assign Voice

F2 F3

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3. Operation

3. Line 1 displays the 24 DS0 channels for the DTE Drop/Insert (DSX-1) interface. Pressing the or key scrolls the channels onto the screen in groups of three. Line 2 displays whether the DS0 channel in Line 1 is a data channel (Data) or a voice (RBS) channel. Each time that you press the Function key located below the desired channel, the display in Line 2 toggles between Data and RBS.

D1 D2 D3 RBS RBS RBS

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 top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Chan selection appears on the screen.

5. Select Chan.

F2 F3

Edit: Port NET Chan

6. From the Channel Config screen, select Clear.

Channel Config: Dsply Clear DTE

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3. Operation

7. From the Clear Channel screen, select NET to clear all DS0 channels assigned to the network interface. Or, select DTE to clear all DS0 channels assigned to the DTE Drop/Insert (DSX-1) interface. Or, select a port to clear all assignments for that data port.

Clear Channel: NET DTE Port1

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.

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 3-12,

Common Clocking Configurations, shows some common clocking configurations.

Two sample procedures for configuring timing are given in the following sections,

Configuring for Network Timing

on page 3-47. For more information on configuration options, refer to Appendix C,

Configuration Options

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on page 3-47 and

Configuring for External Timing

3-45

3. Operation

NOTE:

The external clock source is only available for 2-port and 4-port DSU/CSUs. For carrier-mounted DSU/CSUs, the external clock provides timing for up to eight slots in the carrier. Each Auxiliary Backplane must have its own external clock input.

NETWORK

CLOCK: NETWORK CLOCK: NETWORK

CLOCK: NETWORKCLOCK: INTERNAL

CLOCK: EXTERNAL CLOCK: NETWORK

PBX

CLOCK: DTE (G.703) CONNECTOR

TERMINAL

EQUIPMENT

CLOCK: PORT 1, 2, 3, OR 4

Figure 3-12. Common Clocking Configurations

CLOCK: NETWORK

496-14341-03

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Configuring for Network Timing

Procedure

To configure for network timing:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the Gen selection appears on the screen.

5. Select Gen.

3. Operation

Edit: NET Chan Gen

6. Press F1 (Next) to display the next configuration option (Clock Src).

7. Select the master clock source. For network, press F2 (note that network is also the default).

Configuring for External Timing

Procedure

To configure 2-port and 4-port DSU/CSUs for external timing:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

Clock Src:NET Next NET DTE

F2 F3

3. Select Edit.

4. From the Edit screen, press the key until the Gen selection appears on the screen.

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3. Operation

5. Select Gen.

Edit: NET Chan Gen

F2 F3

6. Press F1 (Next) to display the next configuration option (Clock Src).

7. Select the master clock source. For external, press the key until the Ext selection appears on the screen.

8. Select Ext (external timing).

Clock Src:Ext Prt1 Int Ext

9. Select the appropriate external clock rate by pressing the corresponding Function key. This step is mandatory if you have chosen external clocking.

Clock Rate:1544 Next 2048 1544

F2 F3

Establishing Access Security on a Port

Although the password feature is available, it is not required as a factory default. If used, it ensures access security before device control is passed to a device connected to a port. The password configuration option can be individually set for the COM or MODEM port, or both if security is needed on both port types. The default is section,

Procedure

To establish access security on a port:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the

3. Select Edit.

4. From the Edit screen, press the key until the User selection appears on the

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None.

Setting a Password

The password itself is set separately (refer to the following

on page 3-49).

appropriate Function key. Use the scroll keys, if necessary.

screen.

5. Select User.

3. Operation

Edit: Chan Gen User

6. Press F1 (Next) until the Password configuration option appears.

7. Select port(s) to receive access security (None, Com, Modem, or Both). Use

Setting a Password

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

Establishing Access Security on a Port

Unless you specify otherwise, the password is null.

Procedure

F2 F3

the scroll keys, if necessary.

Password:None Next None Com

F2 F3

on page 3-48) the password itself is set.

To set a password:

1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, press the key until the Passwd selection appears on the screen.

4. Select Passwd.

Control: Reset CID Passwd

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3. Operation

5. Use the and keys to position the cursor under the desired character. You must enter a character before the moves the cursor to the next space to the right.

xxxxxxxx

Passwd: Up Down Save

6. Enter the desired password. Press F1 (Up) and F2 (Down) to scroll up and down through the valid characters/numbers for the password. Valid password characters are

0-9, a-z, A-Z, #, -, .,

password.

xxxxxxxx

F2 F3

Passwd: Up Down Save

Entering a Password to Gain Access

You are prompted to enter a password (up to 8 characters) when you are accessing a port whose Password configuration option is set (refer to the previous section,

Setting a Password

on page 3-49).

and/. Press F3 (Save) to save the

V al id p assword char ac ter s ar e

0-9, a-z, A-Z, #, -, .,

and /. The existing password is not shown on the screen. An underscore in the first position shows where to enter the first character. If the password is set to all null characters (default value), press F3 (Done) when the password screen first appears.

The following screen appears when you access a DSU/CSU that has a password enabled.

Passwd:_ Up Down Done

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3. Operation

Procedure

To enter a password:

1. Use the and keys to position the cursor under the desired character. You must enter a character before the key moves the cursor to the next space to the right. The key is not destructive.

Passwd: Up Down Done

xxxxxxxx

F2 F3

2. Enter the required password. Press F1 (Up) and F2 (Down) to scroll up and down through the valid characters/numbers for the password. You have five minutes to enter the correct password before the DSU/CSU ends the session.

3. Press F3 (Done) to indicate you are done entering the password. If you enter an invalid password, the message

Acquiring/Releasing the User Interface

You can access the user interface from either the front panel, the COM port, the MODEM port (for standalone DSU/CSUs), or the SDCP (for carrier-mounted DSU/CSUs). The DSU/CSU allows only one user interface to be active at a time. The front panel is the default user interface at power-up or after a reset. It is also the default during a software download or when a failure occurs at either the local or remote PC interface.

You can switch an inactive user interface to active if:



The current active user interface has had no activity (no key was pressed) for at least five minutes.

Invalid Password

appears.



The active user interface has been released with the Release command.



The active interface connection is broken. This includes the call disconnect for a modem interface or the termination of the front panel emulation program on a locally-attached PC (if the PC supports DTR) or the termination of the async terminal interface on a remote or locally attached terminal.

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3. Operation

Acquiring the Active User Interface

To acquire the active user interface, press any key. If you are using the PC interface, use the mouse to click on the desired Function key.

The top-level menu screen appears on the active user interface, regardless of what screen was displayed at the previous a ctive user interface.

DSU ESF Stat Test Cnfig

The inactive interface displays the following message when a Function key is pressed or a connection is made on the inactive user interface and control cannot be switched because the currently active interface is in use. On the screen, either Ft. Panel (front panel), Com Port, Modem, or SDCP is displayed in the user interface (

User I/F

DSU ESF

User I/F

) field.

active

The inactive interface displays the following message after control has been released from the previously active interface and another interface has not become active.

DSU ESF

User I/F

idle

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Releasing the Active User Interface

To release the current active user interface, either allow five minutes to elapse without pressing any key or use the Release command.

Procedure

To use the Rele ase com man d:

1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, select Rel (Release).

3. Operation

Control: Call Rel LED

The active user interface is released. The message

Released

appears. No

user interface is active until input is received from a user interface.

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3. Operation

Enabling/Disabling the Front Panel

You can enable or disable the display of information on the front panel. This feature is useful for ensuring that other users do not inadvertently change the device’s configuration options while you are using an external device (e.g., a PC or async terminal). The factory default is

NOTE:

If you disable the front panel, be sure not to alter the configuration options for using an external device (e.g., a PC or async terminal). If this happens, you lose the ability to communicate with the device. You will need to contact your service representative.

Procedure

To enable or disable the front panel:

1. From the top-level menu screen, select Cnfig.

Enable

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the User selection appears on the screen.

5. Select User.

6. Press F1 (Next) until the FP Access configuration option appears.

7. Press F2 to enable the front panel or F3 to disable the front panel.

FP Access: Next Enab Disab

F2 F3

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Using the Integral Modem in Standalone DSU/CSUs

The standalone DSU/CSU’s integral modem enables your DSU/CSU to communicate with remote devices to display alarm messages or to function as the user interface.

modem.

The Call command, available from the Control branch of the menu tree, provides the following functions to initiate and terminate modem connections:



Pass

DSU/CSU’s front panel from your DSU/CSU’s front panel (or PC attached to the COM port).



Dial

or PC. Sets up a semipermanent connection to route alarm messages to the specified destination.



Disconnect



Change Directory

directories.

The carrier-mounted DSU/CSU does not have an integral

– Initiates a call through the integral modem to access a far-end

– Initiates a call through the integral modem to a printer, ASCII terminal,

– Disconnects an active modem connection.

– Allows entry of phone numbers into the internal phone

3. Operation

For additional information, refer to Appendix C,

Configuration Options

Entering Numbers in the Phone Directories

The DSU/CSU has five general directories (1 through 5) and one alarm directory (A). Use the general directories to store phone numbers for remote devices such as standalone DSU/CSUs and ASCII printers. Use the alarm directory to store the phone number of the primary ASCII terminal or printer you use to display or print alarms. This function is not available for carrier-mounted DSU/CSUs because the integral modem is not available for carrier-mounted DSU/CSUs.

Procedure

To enter or change numbers in the phone directories:

1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, select Call.

Control: Call Rel LED

User Interface Configuration Options

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3. Operation

4. From the Call Setup screen, select ChDir.

Call Setup: Pass Dial ChDir

F2 F3

The Directory 1 displays first, along with its phone number if one has been entered.

5. Press F1 (Next) to display the next directory (2, in this case). Press F2 (Previous) to display the previous directory (A, in this case). Directories appear in order, 1 through 5 and then A.

1: xxxxxxxxxxxxxxxxx Next Prev Edit

6. Press F3 (Edit) to change the displayed directory’s phone number (phone numbers can be up to 40 characters). If you select Edit, the Edit screen appears.

1: xxxxxxxxxxxxxxxxx Next Prev Edit

F2 F3

7. Use the and keys to position the cursor under the digit(s) you want to change. Press F1 to scroll up to a higher digit. Press F2 to scroll down to a lower digit. The key inserts blanks (default characters) while the key invokes the End Of Number (EON) character which terminates the dial string and erases any characters to the right when you use the Save function.

See Table 3-6, Valid Phone Number Characters, for the set of valid characters and rules that apply to entering phone numbers.

Example: P9W8135551212

8. Press F3 (Save) to store your changes in nonvolatile memory. If you press

or before saving the phone number you just changed, the previous

phone number remains in effect.

1: xxxxxxxxxxxxxxxxx Up Down Save

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3. Operation

Table 3-6. Valid Phone Number Characters

Valid Characters Meaning Restrictions

0 to 9 DTMF or pulse digits — * # DTMF digits — P Selects Pulse dialing Pulse or Tone must be specified,

otherwise Tone is the default. This mus t be the first character in the string, unless the first character is B. Then, it must immediately follow the B.

T Selects Tone (DTMF) dialing Tone or Pulse must be specified,

otherwise Tone is the default. This mus t be the first character in the string, unless the first character is B. Then, it

must immediately follow the B. W Wait for dial tone — B Blind dialing (you need not wait

for a dial tone before entering the dialing sequence)

, Creates a 2-second pause in

the dialing sequence

<space> ( ) - Extra characters for readability.

The space is the default character.

<- End Of Number (EON)

character, terminates the dial string and erases all ch aracters to the right after F3 (Save) is pressed

Initiating a Call for Front Panel Pass-Through Operation

Front panel pass-through initiates a call through the integral modem to access a far-end DSU/CSU’s front panel from your DSU/CSU’s front panel (or PC attached to the COM port).

NOTE:

Pass is only available when the FP Pass configuration option has been enabled (see Appendix C, is either the front panel or the PC, and the integral modem is not already in use.

Configuration Options

To be valid, this must be the first

character in the string.

—

), the acti ve ph ysical i nterface

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3. Operation

Procedure

To initiate front panel pass-through at the near-end DSU/CSU:

1. From the top-level menu screen, press the key until the Ctrl selection

appears on the screen.

2. Select Ctrl.

3. From the Control screen, select Call.

Control: Call Rel LED

F2 F3

4. From the Call Setup screen, select Pass.

Call Setup: Pass Dial ChDir

F2 F3

5. From the Pass Directory screen, press F1 (Up) to display the next higher

numbered directory or press F2 (Down) to select the next lower numbered directory.

Pass n: Up Down Dial

xxxxxxxxx

6. When the number of the desired directory appears on the screen, press F3

(Dial) to place the call.

Pass n:

xxxxxxxxx

Up Down Dial

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F2 F3

Initiating a Call for PC, ASCII Terminal/Printer, or SNMP Operation

Use the Dial command to set up a semipermanent connection to route alarm messages to the specified destination. The Dial command initiates a call through the integral modem to a printer, ASCII terminal, or PC.

Procedure

To initiate a call at the local DSU/CSU:

1. From the top-level menu screen, press the key until the Ctrl selection

appears on the screen.

2. Select Ctrl.

3. From the Control screen, select Call.

Control: Call Rel LED

3. Operation

4. From the Call Setup screen, select Dial. This selection is not available if the

DSU/CSU’s integral modem is already in use.

Call Setup: Pass Dial ChDir

F2 F3

5. From the Dial Directory screen, press F1 (Up) to display the next higher

numbered directory or press F2 (Down) to select the next lower numbered directory.

Dial n:

xxxxxxxxx

Up Down Dial

6. When the number of the desired directory appears on the screen, press F3

(Dial) to place the call.

Dial n:

xxxxxxxxx

Up Down Dial

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F2 F3

3-59

3. Operation

Disconnecting the Modem Connection

The Disconnect command enables you to force a disconnect of an active modem connection from the front panel of the DSU/CSU. This command is only available when the DSU/CSU modem is connected.

Disconnect methods include:



Using the Disconnect command via the front panel menu (for

all

dial connections, or when a pass-through connection is established to another 316x DSU/CSU).



Pressing and holding the and front panel keys simultaneously (when a pass-through connection is established to a remote device other than a 316x DSU/CSU).

Procedure

To disconnect an established modem connection using the Disconnect command:

1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.

2. Select Ctrl.

3. From the Control screen, select Call.

Control: Call Rel LED

F2 F3

4. From the Call Setup screen, select Disc.

Call Setup: Disc ChDir

F2 F3

The modem call is disconnected and the Command Complete screen appears.

Disconnect: Command Complete

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3. Operation

Procedure

To disconnect a modem connection using two front panel keys:

1. Press the and keys simultaneously and hold for two seconds.

Call Setup: Disc ChDir

The modem call is disconnected and the Command Complete screen appears.

Enabling the Communication Port for Carrier-Mounted DSU/CSUs

Communication between the carrier-mounted DSU/CSUs and an external PC, ASCII device, SNMP manager, or async terminal interface (attached either locally or through an external modem) occurs through a shared communication (COM) port. (For COM port cabling information, refer to the

Carrier Installation Manual

.) Unlike standalone DSU/CSUs, the carrier-mounted DSU/CSUs do not have a dedicated COM port for external access. Once the COM port is enabled, other COM port configuration options can be selected. These options are used to configure Port 2 on the Auxiliary Backplane as a COM port for the carrier.

NOTE:

If a Model 3161 DSU/CSU has the COM port enabled, Port 2 cannot be used as a data port.

COMSPHERE 3000 Series

Procedure

To enable the COM port on the carrier-mounted DSU/CSU:

1. From the top-level menu screen, select Cnfig.

2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key. Use the scroll keys, if necessary.

3. Select Edit.

4. From the Edit screen, press the key until the User selection appears on the screen.

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3. Operation

5. Select User.

Edit: Chan Gen User

F2 F3

6. Press F1 (Next) until the Com Port configuration option appears.

7. Select Enab to enable the COM port for the carrier-mounted DSU/CSU.

Com Port: Next Enab Disab

F2 F3

The carrier COM port provides the following functionality:



If configured for ASCII, only one ASCII device may be used for the carrier. (If two COM ports are configured for ASCII, neither will work.)



If configured for Mgmt, each device in the carrier can support an Mgmt COM port; however, each Mgmt COM port must be connected to a different subnet. To facilitate IP data routing, the device with the closest link to the SNMP manager or Telnet client should be configured as the IP Bus Master.



If configured for either ASCII or Mgmt, the carrier COM port may be configured to control an external device (e.g., modem, x.25 PAD) through the use of A T or user-specified commands.

The set of valid characters for control of the carrier external COM port device is as follows:



The numbers: 0–9



The lowercase letters: a–z



The uppercase letters: A–Z



The space (“ ”) character



The ASCII symbols (in ascending order, based on the ASCII code)



The End Of Line (EOL) symbol:



The caret (“^”) control character is used to select non-printable ASCII

←

characters. The caret “^” must be followed by one character which together form the control sequence. Table 3-7, Control Sequence, defines all of the available control sequences.

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Table 3-7. Control Sequence

Sequence ASCII HEX

^A or ^a SOH 0x01 ^B or ^b STX 0x02 ^C or ^c ETX 0x03 ^D or ^d EOT 0x04 ^E or ^e ENQ 0x05 ^F or ^f ACK 0x06 ^G or ^g BEL 0x07 ^H or ^h BS 0x08 ^I or ^i HT 0x09 ^J or ^j LF or NL 0x0A ^K or ^k VT 0x0B

3. Operation

^L or ^l FF or NP 0x0C ^M or ^m CR 0x0D ^N or ^n SO 0x0E ^O or ^o SI 0x0F ^P or ^p DLE 0x10 ^Q or ^q DC1 0x11 ^R or ^r DC2 0x12 ^S or ^s DC3 0x13 ^T or ^t DC4 0x14 ^U or ^u NAK 0x15 ^V or ^v SYN 0x16 ^W or ^w ETB 0x17 ^X or ^x CAN 0x18 ^Y or ^y EM 0x19 ^Z or ^z SUB 0x1A

^{ ESC 0x1B ^\ FS 0x1C ^} GS 0x1D ^^ RS 0x1E ^_ US 0x1F

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3. Operation

Deactivating the Alarm Relay for Carrier-Mounted DSU/CSUs

The Alarm Cut-off command forces a deactivation of the alarm relay on the 3000 Series Carrier during an alarm condition. Since this function only affects the 3000 Series Carrier, it is only available for carrier-mounted DSU/CSUs. The alarm relay function must first be enabled by the Alarm Relay configuration option (refer to Appendix C,

Procedure

To deactivate the alarm relay:

1. From the top-level menu screen, press the key until the Ctrl selection

appears on the screen.

2. Select Ctrl.

3. From the Control screen, select ACO.

Configuration Options

Control: ACO Rel LED

4. The Command Complete screen appears.

Alarm Cut-Off: Command Complete

F2 F3

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Resetting the DSU/CSU

Use the Reset command to perform a power-on reset of the DSU/CSU.

Procedure

To reset the DSU/CSU:

1. From the top-level menu screen, press the key until the Ctrl selection

appears on the screen.

2. Select Ctrl.

3. From the Control screen, press the key until the Reset selection appears

on the screen.

4. Select Reset.

3. Operation

Control: ClrReg Reset

5. From the Device Reset screen, press F1 to initiate a reset of the DSU/CSU

(the power-up sequence screen appears). Press F2 instead to return to the Control screen without init iating a reset.

Download Operations

NOTE:

The Download command is for use by service personnel only. Loss of primary data could result from improper use.

Device Reset: Yes No

F2 F3

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3. Operation

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Paradyne 3165-A2, 3160-A3, 3164-A2, 3161-B3 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

Alarm Message Capability

Front Panel Emulation

Integral Modem

Async Terminal Interface Support

Telnet Access

SNMP Management Support

Physical Description

Standalone DSU/CSU Front Panel

Standalone DSU/CSU Rear Panel

Installation

Overview

Application Examples

SNMP or Telnet Connection Examples

Important Instructions

Optional Power Sources

Installing the +24 Vdc Power Supply

Cabling Examples

Power-Up Self-Test

Operation

Overview

Using the Front Panel

Keypad

Test Jacks

LEDs

Displaying Unit Identity

Setting Customer Identification

Selecting the DTE Drop/Insert or Data Port for LED Display

Displaying LED Conditions

Changing Configuration Options

Displaying/Editing Configuration Options

Saving Edit Changes

Selecting/Copying to a Specific Port

Configuring the DSU/CSU for SNMP or Telnet Access

Selecting the Port

Setting the IP Address

Selecting the Link Layer Protocol

Specifying the Community Name(s) and Access Type(s)

Configuring SNMP Traps

Enabling SNMP Trap Messages

Selecting the Number of Trap Managers

Configuring a Destination for SNMP Traps

Configuring DS0 Channels

Displaying DS0 Channel Assignments

Allocating Data Ports

Block or ACAMI Assignment Method

Individual Channel Assignment Method

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

Clearing DS0 Channel Allocation

Providing Backup Capability

Selecting the Timing Source

Configuring for Network Timing

Configuring for External Timing

Establishing Access Security on a Port

Setting a Password

Entering a Password to Gain Access

Acquiring/Releasing the User Interface

Acquiring the Active User Interface

Releasing the Active User Interface

Enabling/Disabling the Front Panel

Using the Integral Modem in Standalone DSU/CSUs

Entering Numbers in the Phone Directories

Initiating a Call for Front Panel Pass-Through Operation

Initiating a Call for PC, ASCII Terminal/Printer, or SNMP Operation

Disconnecting the Modem Connection

Enabling the Communication Port for Carrier-Mounted DSU/CSUs

Deactivating the Alarm Relay for Carrier-Mounted DSU/CSUs