Paradyne COMSPHERE 3610, COMSPHEREu0001 3611, COMSPHERE\u0001 3600 User Manual

COMSPHERE
3600 SERIES
DATA SERVICE UNITS
MODELS 3610 AND 3611
USER’S GUIDE
Document No. 3610-A2-GB46-60
December 1996
NOTE
COMSPHERE 3600 Series Data Service Units
COMSPHERE 3600 Series Data Service Units Models 3610 and 3611
User’s Guide 3610-A2-GB46-60
7th Edition (December 1996)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release.
United States
FCC Registration number: AW292J-61661-DD-N PSTN Ringer Equivalence number (REN) V.32 DBM option 0.7B
Canada
V.32 Dial Backup Module Certification number: 230 3684 A DOC Load number: 7 2-Wire Switched 56 DBM Certification number: 230 5870 A DOC Load number: 0 ISDN Dial Backup Module Certification number: 230 6943 A DOC Load number: 0
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty, sales, service, repair, installation, documentation, or training, use one of the following methods:
Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
Via Telephone: Call our automated call system to receive current information via fax or to speak with a company representative.
— Within the U.S.A., call 1-800-870-2221 — International, call 727-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service marks of their respective owners.
Printed on recycled paper
COPYRIGHT 1996 Paradyne Corporation. All rights reserved.
This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo, Florida 33779-2826.
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.
A December 1996 3610-A2-GB46-60
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or included in the manual.
2. This product is intended to be used with a three-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug by modifying the plug or using an adapter.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the presence of earth ground. If the receptacle is not properly grounded, the installation must not continue until a qualified electrician has corrected the problem.
If a three-wire grounding type power source is not available, consult a qualified electrician to determine another method of grounding the equipment.
3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to protect it from overheating, these slots and openings must not be blocked or covered.
4. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord.
5. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous high voltage points or other risks. Refer all servicing to qualified service personnel.
Safety Instructions
6. General purpose cables are provided with this product. Special cables, which may be required by the regulatory inspection authority for the installation site, are the responsibility of the customer.
7. When installed in the final configuration, the product must comply with the applicable Safety Standards and regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory agencies and inspection authorities to ensure compliance.
8. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If products installed in separate buildings are interconnected, the voltage potential may cause a hazardous condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if necessary, implement corrective action prior to interconnecting the products.
9. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:
— Never install telephone wiring during a lightning storm. — Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
— Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface. — Use caution when installing or modifying telephone lines. — Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a
remote risk of electric shock from lightning. — Do not use the telephone to report a gas leak in the vicinity of the leak.
B3610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Notices
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Government Requirements
Certain governments require that instructions pertaining to 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 Telephone Network
This equipment complies with Part 68 of the FCC rules. On the bottom of the equipment is a label or silk-screened text that contains, among other information, the FCC registration number and Ringer Equivalence Number (REN) for this equipment. If requested, please provide this information to your telephone company.
The REN is useful to determine the quantity of devices you may connect to your telephone line and still have all of those devices ring when your number is called. In most areas, the sum of the RENs of all devices should not exceed 5. Call your local telephone company to ascertain the maximum REN for your calling area.
If your Model 3610 or 361 company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice is not practical, you will be notified as soon as possible. You will be advised of your right to file a complaint with the FCC.
Your telephone company may make changes in facilities, equipment, operations, or procedures that could affect the proper operation of your equipment. If so, you will be given advance notice so as to give you an opportunity to maintain uninterrupted service.
1 DSU with DBM causes harm to the telephone network, the telephone
C December 1996 3610-A2-GB46-60
Safety Instructions
The
DBM cannot be used on public coin-operated telephone service provided by the telephone
company. Connection to party-line service is subject to state tarif
fs. Contact the state public utility
commission, public service commission, or corporation commission for information. No repairs may be performed by the user. Should you experience difficulty with this equipment,
refer to the Equipment W
arranty and Support
section.
For Digital Data Service (DDS) installations, inform the local telephone company of the appropriate facility interface code for the service you desire.
DDS Facility
DBM Type
12.0 or 14.4 kbps V.32bis DBM
2-Wire Switched 56 DBM
Interface
Code
04DU5-24 2400 04DU5-38 38,400 04DU5-48 4800 04DU5-56 56,000 04DU5-96 9600 04DU5-64 64,000 04DU5-19 19,200
Data Rate
(bps)
Interface
Code
Data Rate
(bps)
For DBM installations, the proper service and jack must be ordered from the telephone company. Refer to the following table for this information.
DBM Jack Installation Requirements
USOC Jack
(Standalone)
RJ11C Permissive RJ45C Programmable
SJA48 SJA48 (uses an
USOC Jack
(Carrier-Mounted)
RJ21X Permissive RJ27X Programmable
adapter cable)
Canadian Jack
(Standalone)
CA11A Permissive CA27A Programmable
CA1
1
(metallic channel)
Canadian Jack
(Carrier-Mounted)
CA21A Permissive CA27A Programmable
CA21A (metallic channel)
4-Wire Switched 56 DBM
ISDN BRI DBM SJA11 SJA11 (uses an
SJA56 SJA57 Not available
After the telephone company has installed the requested service and jack, you can connect the DSU with the cable provided. An FCC-compliant telephone cord and modular plug are provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack that is Part 68 compliant.
adapter cable)
Not available
in Canada CA-A11 CA-A11 (uses an
in Canada
adapter cable)
D3610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Canada
Notice to Users of the Canadian Telephone Network
The Canadian Department of Communications has certified that this equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee that the equipment will operate to the user’s satisfaction.
Before installation, verify connectivity of this equipment to the local telecommunications company’s facilities. The equipment must be connected by an acceptable method. In some cases, the telecommunications company’ s inside wiring associated with single-line individual service may be extended with a certified connector assembly (telephone connection cord). The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.
If you experience difficulty with this equipment and require service, refer to the Equipment Warranty and Support section.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may cause the telecommunications company to ask you to disconnect the equipment.
Users should ensure that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together for protection. This precaution may be particularly important in rural areas.
CAUTION
Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or an electrician, as appropriate.
The load number (LN) is labeled on the equipment. The LN denotes the percentage of the total load to be connected to a telephone loop used by this equipment. T o prevent an overload, the total of the LNs of all devices attached to the loop may not exceed 100. The LN also specifies the appropriate ringing type (A or B), if applicable. For example, LN = 20A designates a load number of 20 and an A type ringer.
Equipment W arranty and Support
If you experience trouble with this equipment, please contact your sales or service representative (as appropriate) for repair or warranty information. If the product needs to be returned to the company service center for repair, contact them directly for return instructions using one of the following methods:
Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com
Via Telephone: Call our automated call system to receive current information via fax or to
speak with a company representative.
— Within the U.S.A., call 1-800-870-2221 — International, call 727-530-2340
If the trouble is causing harm to the telephone network, the telephone company may request that you remove the equipment from the network until the problem is resolved.
E December 1996 3610-A2-GB46-60
Table of Contents
Preface
About This Guide v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Use This Guide Related Documents
1. Product Introduction
Standard DSU Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional DSU Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DBM Common Capabilities TDM/MCMP and Digital Bridge Capabilities
Related Documents
2. Model 3610 Installation
v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4. . . . . . . . . . . . . . .
1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Y
Verifying the S1 Switch Settings 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powering Up the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Changing Configuration Options 2-5. . . . . . . . . . . . . . . . . .
DDS Network Connection 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Verification Testing 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Connections 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Diagnostic Connection
Async T
ou Begin Installation Process
DSU Installation Planning 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Routine 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Home Screen Display
SNA Diagnostic Interface Verification 2-10. . . . . . . . . . . . . . . . . . . . .
erminal Connection 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
i3610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
3. Front Panel Operation
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panels 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Async T
Menu Structure 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Branch
Backup Branch T
Configuration Branch 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Branch 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch
Front Panel Security 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
erminal Operation 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top-Level Menu 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local/Remote Menu Branches
Health and Status
DTE Status 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Quality 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identity 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal Power 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
est Branch
Abort 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Test 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loopbacks 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Test 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End-to-End Test 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bit Error Rate Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Tone Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Poll List 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Directory 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Address Change Protocol Mode Async T
SPID 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Control 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEDs 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Leads 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
erminal 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Configuration Option Tables
ii December 1996 3610-A2-GB46-60
Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documentation
Configuration Option Tables 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Option Tables Format 4-1. . . . . . . . . . . . . . . . . . . . . .
4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
Glossary
Index
T
able of Contents
A. Data Service Unit Menu A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. DSU Configuration Worksheet B-1. . . . . . . . . . . . . . . . . . . . . . . . .
Async T
C.
SNA Diagnostics
D. E. T F. T
G. Firmware Version Control Information G-1. . . . . . . . . . . . . . . . . . .
erminal Operation C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
roubleshooting and Front Panel Messages
echnical Specifications
D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-1. . . . . . . . . . . . . . .
F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii3610-A2-GB46-60 December 1996
Preface
About
This started using your COMSPHERE 3600 Series Data Service Unit (DSU). It provides a summary of the DSU’s features and System Network Architecture (SNA) Diagnostic Interface options.
It is assumed that you are familiar with the functional operation of data communications equipment (DCE).
This Guide
user
’s guide provides basic information to get you
How to Use This Guide
Chapter 1 gives a general overview of the 3600 Series DSU and SNA Diagnostic Interface options. Refer to this chapter for a summary of standard and optional features. A list of related documents is also included.
Chapter 2 explains how to install and set up your Model 3610 DSU. T
COMSPHERE 3000 Series Carrier
the Manual.
Chapter 3 provides an overview of the DSU’s front panel, status indicators, and menu structure, with a brief description of each branch’s purpose or function.
Chapter 4 provides the basics of setting or changing configuration options. Configuration option tables assist you in making appropriate selections when a change to the factory-loaded configuration options may be required.
o install a Model 361
, Installation
1 DSU, refer to
Appendix A provides DSU factory default configuration option settings and the DSU’ structure. Refer to the menu tree as you proceed through the menu from the front panel or an async (asynchronous) terminal.
Appendix B provides a configuration worksheet to use during planning.
Appendix C provides async terminal operation details.
Appendix D presents SNA Diagnostics operation.
Appendix E provides troubleshooting and front panel messages.
Appendix F presents local area data set (LADS) connection distances tables and technical specifications.
Appendix G provides firmware version control information.
The Glossary defines acronyms and product-specific terms used in this guide.
s menu
Related Documents
For 3600 Series related documentation, see Table 1-1 in Chapter 1.
v3610-A2-GB46-60 December 1996
Product Introduction
Standard DSU Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional DSU Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DBM Common Capabilities 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V.32bis DBM 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-Wire Switched 56 DBM 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-Wire Switched 56 DBM 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISDN DBM 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDM/MCMP and Digital Bridge Capabilities 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDM Capability 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MCMP Capability 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Bridge Capability 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Standard DSU Features
The COMSPHERE 3600 Series Data Service Units (DSUs), Models 3610 and 361 between computers and other data processing devices by providing connections to digital data service (DDS) transmission facilities.
The 3600 Series DSU offers the following standard features:
Multispeed operation:
DATAPHONE Digital Service network, or equivalent DDS network, at data rates of 2.4, 4.8,
9.6, 19.2, 38.4, 56, and 64 kbps full-duplex. The DSU is also compatible with the ACCUNET Spectrum of Digital Services network (ASDS), and supports 64 kbps Clear Channel operation on a 72
kbps local loop.
Nondisruptive diagnostics: In a nondisruptive
diagnostic network, transmits all communications without interruption to user-transmitted data.
Async/Sync conversion: Provides point-to-point
and multipoint asynchronous-to-synchronous data conversion for DTE ports. The DSU can send asynchronous data over a synchronous network.
Automatic rate detection: The DSU supports
detection of the DDS data rate automatically.
1, support communication
Operates on the
User-selectable interfaces: T
data terminal equipment (DTE) interfaces for data rates up to 64 kbps.
— EIA/TIA-232-E interface for operation at data
rates up to 19.2 rates up to 64 kbps with a low capacitance cable
— V.35 interface for data rates up to 64 kbps
LADS operation:
set (LADS) at data rates of 2.4, 4.8, 9.6, 19.2, 38.4, 56, or 64 kbps full-duplex (sometimes called a limited-distance modem or LDM).
Flexible device control: The 3600 Series DSUs
provide access to the COMSPHERE 6800 Series Network Management System (NMS) and are compatible with DATAPHONE II System Controller Controller.
Rate adaption:
with a data rate greater than the DTE, rate adaption is automatically enabled. Both point-to-point and multipoint configurations support rate adaption.
Crossed-pair detection: Generates a facility alarm
when the DDS receive and transmit pairs are crossed.
, Diagnostic Console, or Network
kbps with standard cable and
Can operate as a local area data
When a DSU or DBM is operating
wo user
-selectable
6700 or
1-13610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Multiple sets of factory defaults:
full sets of default configuration options in DSU memory for:
— Control (FacC) — Tributary (FacT) — Central-Site Digital Bridge (FacB) — Multipoint Control (MPTC) — Multipoint Tributary (MPTT)
Options sets can be saved to several storage areas.
Front panel control: Provides control from a front
panel with a 2-line, 16-character liquid crystal display (LCD), light-emitting diode (LED) status indicators, and software-defined function keys.
Model 3610 has a front panel
— —
Model 361 panel (SDCP), which is mounted on the COMSPHERE 3000 Series Carrier. The SDCP can be shared by as many as 128 DSUs
Either front panel provides:
— Health and Status information — Modifiable configuration options
Initiation of tests and commands
— —
Reports of test results
1 has a shared diagnostic control
Provides several
Point-to-Point and Multipoint: Supports both link
configuration options.
Async terminal control: Provides control from an
async (asynchronous) VT100-compatible terminal. This feature is available only for a Model 3610 standalone DSU.
External dial backup: Provided by an external
dial backup unit (DBU), such as a 3800 Series dial/lease modem, for a point-to-point DSU.
SNA Diagnostic Interface: The 3600 Series DSU
has SNA (System Network Architecture) Diagnostic Interface with the LPDA-2 protocol installed on the circuit card. LPDA-2 (Link Problem Determination Aid, Release 2 are part of IBM’
When enabled, the SNA Diagnostic Interface provides the following features:
— LPDA-2 protocol, allowing the 3600 Series
DSU to be controlled from IBM’ management program.
— Full option support for all other 3600 Series
DSU options, including Dial backup module (DBM), Time division multiplexer (TDM), and Multichannel multipoint (MCMP).
ith TDM/MCMP
—W
For digital sharing, LPDA-2 support is available on all ports.
s NetV
iew management system.
, Port 1 supports LPDA-2.
) diagnostics
s NetV
iew
Management of remote DSUs
Network interface (aggregate): Provides an
additional mode of dial backup. When Network Interface is set to aggregate switch or forced on, the DSU provides an internal aggregate data stream, including diagnostics, framing, and standby mode on the alternate V.35 or EIA-232 interface of Port 1.
Full tributary diagnostics:
set of diagnostic tests and commands. The set of diagnostics can be addressed to tributaries from:
— A COMSPHERE 6700 or 6800 Series NMS
workstation — The front panel — The async terminal of a control DSU
A DA
TAPHONE II System Controller or
Network Controller
Supports an enhanced
Optional DSU Features
The 3600 Series DSU offers a number of optional
features:
Dial Backup Modules:
— ISDN (Integrated Services Digital Network)
DBM – Basic Rate Interface (BRI) 1B+D with digital 2-wire 2B1Q U interface
2-wire Switched 56 DBM – digital access
— —
4-wire Switched 56 DBM – digital access
—V
.32bis DBM – 14.4 kbps analog modem
TDM/MCMP
Digital Bridging
1-2 December 1996 3610-A2-GB46-60
Product Introduction
DBM Common Capabilities
Integrated DDS connection fails. DBM childboards are attached to the DSU circuit card. The DBM option offers the following features:
Automatic backup and restoration:
Interoperability:
Independent operation: Although the DSU and
Security: Provides multiple levels of call setup
Dial backup support: Provides DBM support of
Flexible device control: Provides control of the
Installation choices: Orderable from the factory as
V.13 operation: Provides pseudo-switched carrier
Non-interfering testing:
Bridging: Digital bridging provides dial backup of
DBMs ensure continuity of service if the
When configured for automatic operation, the DSU/DBM detects a network failure, performs the dial backup, and restores the data path to the DDS circuit when the network returns to service.
Provides digital DBM compatibility. The ISDN DBM, 2-wire Switched 56 DBM, and 4-wire Switched 56 DBM can communicate with each other at 56 kbps.
DBM are functionally integrated, you can configure each separately and run most tests independently
security
. Prevents unauthorized access and invalid
calls to the DBM.
TDM or MCMP networks.
DBM from an NMS, the DSU’s front panel, an async terminal, or automatically by the DSU/DBM. DBMs support a comprehensive set of diagnostics, tests, and commands.
one unit with the dial backup option installed on the DSU or a DBM field-installable upgrade.
operation from the tributary to the control.
Allows data to be sent on a DDS facility while performing a test on the active DBM over the dial backup facility without disrupting data on the DDS line.
multipoint configurations. When ordered from the factory as a DBM­function as a DSU. A DBM-X is a Model 361 DBM-D, DBM-I, DBM-S, or DBM-V
X for Model 361
1, does not
1
.
V.32bis DBM
The V
.32bis 14.4 kbps analog DBM childboards of
fer
the following features:
Multispeed point-to-point backup: Provides
point-to-point service over the 2-wire dial network at a customer
Data rates:
-specified rate at full-duplex.
Provides DBM speeds up to 14.4 kbps
using standard dial lines.
2-Wire Switched 56 DBM
The 2-wire Switched 56 DBM childboards provide dial backup capability through the switched 56 kbps digital service. The Switched 56 DBM of
fers the following
features:
.
Network compatibility: Provides 2-wire Switched
56 DBM service restoration of failed DDS circuits over compatible switched 56 kbps services from the Local Exchange Carrier (LEC) or long distance carrier for:
— AT&T’ — MCI’
s ACCUNET Switched 56 kbps Service
s 56 kbps Switched Digital Service — Northern Telecom’s DataPath 2-wire Service — US SPRINT’
s VPN56
Data rates: Operates at 56 kbps full-duplex and
uses proprietary rate adaption to support data rates that are less than 56 kbps.
4-Wire Switched 56 DBM
The 4-wire Switched 56 DBM childboards provide dial backup capability through the switched 56 kbps digital service. The Switched 56 DBM of features:
Network compatibility: Provides 4-wire Switched
56 DBM service restoration of failed DDS circuits over compatible switched 56 kbps services from LEC or long distance carrier for:
— AT&T’ — MCI’
s ACCUNET Switched 56 kbps Service
s 56 kbps Switched Digital Service
fers the following
— US SPRINT’
s VPN56
Data rates: Operates at 56 kbps full-duplex and
uses proprietary rate adaption to support data rates of less than 56 kbps.
1-33610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
ISDN DBM
TDM Capability
The ISDN DBM childboards offer the following
features:
ISDN digital service r
estoration: Provides backup
capability if the DDS private line fails. The ISDN DBM operates on a digital 2-wire 2B1Q (U interface). The BRI operates with a 64 kbps B-channel and a D-channel for signaling (1B+D). Supports the following protocols and switches:
— AT&T 5ESS — DMS-100 — NI-1 (National ISDN-1) — NI-2 (National ISDN-2)
Data rates: Operates at 64 or 56 kbps full-duplex
and uses proprietary rate adaption to support data rates of less than 56 kbps.
TDM/MCMP and Digital Bridge Capabilities
TDM
capability allows up to six independent ports to share one standard digital point-to-point facility capability allows up to six ports to share one standard 56 kbps multipoint facility. Digital bridge is available with either TDM or MCMP. Similar features are:
Async/Sync conversion: Provides up to six ports
configurable for asynchronous-to-synchronous operation.
FEP port sharing: Provides a method of
connecting a front-end processor (FEP) to two consecutive ports to broadcast the same message over the network and the shared ports.
. MCMP
Additional TDM capability includes the following
features:
Port capacity:
Allows up to six independent ports to share one standard digital point-to-point facility. Provides Port 1 on the DSU and five EIA-232 or V.35 ports on the TDM circuit card. Model 3611 provides EIA-232 for Ports 2–6.
Digital sharing:
Allows two groups of consecutive ports to share the same TDM channel. All ports in a digital-sharing group operate at the same speed and receive the same data.
Models: There are two versions of the Model 3610
standalone TDM/Flex:
— 2-port TDM/Flex — 6-port TDM/Flex
With either Flex model, each port
can be set independently as either an EIA-232 or V.35 interface.
Digital bridge: Performs digital bridge functions
and supports many applications, including dedicated multipoint dial backup and multipoint LADS operation.
Flexible device control:
Provides the same diagnostic capabilities as a point-to-point 3600 Series DSU without the TDM option. Allows control of the TDM option from the front panel, or from a 6700 or 6800 Series NMS.
Point-to-point backup:
Allows a DSU with TDM to have a DBM installed for point-to-point dial backup.
Elastic stor
e per port:
Provides a transmit elastic store buffer for each port to support extended circuits. Supports both digital and analog extensions.
Switched-carrier emulation: Provides optional
switched-carrier emulation for each port for both the inbound and outbound directions.
1-4 December 1996 3610-A2-GB46-60
MCMP Capability
Additional
features:
Channel capacity: Allows up to six virtual
Digital sharing: Allows up to three digital-sharing
MCMP capability includes the following
multipoint circuits over one 56 kbps DDS multipoint facility.
groups at each tributary site by assigning channels to more than one port. All ports operate at the same speed and receive the same data.
MCMP capability allows digital sharing and multiplexing simultaneously at any tributary site.
Product Introduction
Models: There are two versions of the Model 3610
standalone MCMP/Flex:
— 2-port MCMP/Flex — 6-port MCMP/Flex
With either Flex model, each port
can be set independently as either an EIA-232 or V.35 interface. Model 3611 provides EIA-232 for Ports 2–6.
Number of addr
essable devices:
Supports up to 40 tributary DSUs or 20 tributary DSUs with DBMs, each equipped with an MCMP circuit card.
Multipoint dial backup: Provides multipoint
service restoration with extended bridges using the Network Interface configuration option to allow dial backup.
Digital Bridge Capability
Digital bridging is primarily used for dedicated multipoint dial backup. The ISDN, dial, or switched 56 kbps network provides backup support.
The digital bridge capability is dedicated to a single DSU. The DTE connected to the DSU is usually the controlling DTE of a multipoint network. Configure the TDM/MCMP option to provide the digital bridge capability.
Digital bridging, when used to support dedicated multipoint dial backup, includes the following features:
Related Documents
Table 1-1 lists 3600 Series related documentation. The
following is a list of technical reference documents.
ANSI T1.410 – 1992
ANSI T1.601 – 1992
ANSI X3.64 – 1979 (Reaffirmed 1990)
AT&T T
AT&T T
AT&T T
Bell Canada DCTE Specifications – 1989
Bell Communications Research T Reference Publication 41028
Bellcore Special Report SR-NWT-001953
DATAPHONE II 2600 Series Data Service Units
User’
EIA/TIA-232-E (ISO 2110)
Integrated Network Corporation Compatibility
Bulletin CB-INC-101
ITU-TSS V.35 (ISO 2593)
Northern Telecom NIS S204-2 1986
Pacific Bell PUB L-780035-PB/NB
Pacific Bell PUB L-780036-PB/NB
echnical Reference 41458 echnical Reference 61330 echnical Reference 62310 – 1993
echnical
s Manual
Number of tributaries:
Provides dedicated
multipoint dial backup for up to 20 tributary DSUs.
Partial and full backup: Provides multipoint dial
backup for both partial and full backup on DDS multipoint circuits.
Restoration:
When the DSU rate equals the DBM rate, preconfigured tributary DSUs can automatically drop the backup connection and switch back to the DDS facility when the DDS network is restored.
1-53610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
COMSPHERE 3600 Series Product-Related Documentation
Document Name
Document
Number
Table 1-1
Description
COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options Supplement
COMSPHERE 3600 Series Data Service Units, Models 3610 and 3611, Dial Backup Module Options Supplement
COMSPHERE Model 3610 2-port or 6-port TDM/Flex or MCMP/Flex Upgrade Installation Instructions
COMSPHERE 3600 DBM Option Installation Instructions
COMSPHERE 3000 Series Carrier Installation Manual
COMSPHERE –48 Vdc Central Office Power Unit, Installation Guide
COMSPHERE 6800 Series Network Management System, Communications Products Support Command Reference Manual
3610-A2-GB48 Supplement to this User’s Guide. Shipped with all standalone
3610 DSUs with TDM, MCMP, or Digital Bridge options or upgrades. Provides descriptions of TDM, MCMP Bridge features, installation instructions, front panel operation, configuration options and worksheets, troubleshooting, messages, and specifications.
3610-A2-GB49 Supplement to this User’s Guide. Shipped with all standalone
3610 DSUs with Dial Backup Modules or upgrades. Provides descriptions of DBMs, features, installation instructions, front panel operation, configuration options and worksheets, troubleshooting, messages, and specifications.
3610-A2-GZ51 Shipped with field-installable TDM/Flex or MCMP/Flex upgrades.
Contains Model 3610 Flex MUX installation procedures.
3610-A2-GZ52 Shipped with field-installable dial backup upgrades. Contains
installation procedures for all Model 3610 and 3611 DBM types.
3000-A2-GA31 Shipped with every carrier. Contains installation procedures for
the carrier and its components, options, and operation.
3000-A2-GB41 Shipped with every –48 Vdc power unit. Includes descriptions of
features, installation instructions, troubleshooting, specifications, and an equipment list.
6800-A2-GB31 Shipped with software. Provides descriptions of device
commands for interaction between 6800 Series NMS and other product lines.
, and Digital
COMSPHERE 6700 Series Network Management System, User’s Guide
6700-A2-GY31 Shipped with software and is orderable. Provides descriptions of
NMS features, installation instructions, configuration setup, display and statistics options, reports generation, online help conventions, and input forms.
1-6 December 1996 3610-A2-GB46-60
Model 3610 Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Process 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DSU Installation Planning 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying the S1 Switch Settings 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powering Up the DSU 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Routine 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Changing Configuration Options 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Home Screen Display 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DDS Network Connection 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Verification Testing 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Connections 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Diagnostic Connection 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNA Diagnostic Interface Verification 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Async Terminal Connection 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Overview
The Model 3610 DSU is delivered with default switch settings and factory-installed software options. The factory default configuration option set is FacT.
The Model 3610 DSU is ready to connect to the network. No on-site assembly is required.
Before You Begin
Before connecting any cables to your DSU, verify the following:
There is a dedicated grounded ac outlet within
6 feet that is protected by a circuit breaker. Label the circuit breaker that protects the ac outlet and ensure that the circuit breaker is set to ON.
Your installation site is clean, well-lit, ventilated,
and free from environmental extremes.
ou have contacted the telephone company to
Y
coordinate installing your DSU to the DDS network. The DSU can only operate at the data rate provided by the DDS network. The DBM, if enabled, should also be connected to the dial network.
Your package contains a power cord and
ac transformer.
AC Transformer
496-14705-01
CAUTION
Only use the power transformer designed for the Model 3610 DSU. Using other transformers may result in personal injury or damage to the equipment.
2-13610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
1
Installation Process
Verifying the S1 Switch Settings
Powering Up the DSU
Connecting to the DDS Network
Network Verification Testing
DTE Connections
DSU Installation Planning
The
Model 3610 DSU is designed for desktop
operation.
Place the DSU in the planned location.
Allow 1 to 2 feet of clearance for cable
connections, space for the ventilation slots on the sides, and clearance at the rear for the cable connections.
erify the S1 switch settings as indicated below
V
Verifying the S1 Switch
The Model 3610 DSU has a switch located under the front panel. To verify or change the S1 switch settings, remove the front bezel:
. Procedure
1. Place a small screwdriver or your thumbs under the two tabs on the outside edges of the front bezel. Firmly press upward to separate the bezel from the tabs.
Front Bezel
or
.
COMSPHERE 3610
Front Bezel
Settings
HANDLING
STA
This product is designed to protect sensitive components from damage due to electrostatic discharge (ESD) during normal operation. When performing installation procedur take proper static control precautions to prevent damage to equipment. If you are not sure of the proper static control precautions, contact your nearest sales or service r
PRECAUTIONS
FOR
TIC-SENSITIVE DEVICES
es, however
epresentative.
496-14701-0
2. Swing the front bezel up and set aside.
3.
Change the switch settings if necessary
,
small instrument. Do not use a pencil.
. Use a
If the DSU has . . . Then use . . .
Two switches Figure A. Four switches Figure B.
4. Reinsert the front bezel’
s hinge tabs into position at the top and swing the bezel down. Snap the bezel back into place.
2-2 December 1996 3610-A2-GB46-60
Model 3610 Installation
S1-3
S1-4
Figure A
ON
ON
Switch 1
V.32
Analog
DBM
Interface
(S1-1)
S1
l
2
Frame Ground/
Signal Ground
(S1-2)
496-14702-01
Switch Setting Function
S1-1 V
.32
ON
(default)
OFF Programmable transmit output
Analog
DBM only
ON Frame ground (FG) connected to
S1-2
OFF
(default)
ON is to the rear as you face the front of the DSU. OFF is to the front.
Permissive transmit output level of –9 dBm
level between –12 dBm and 0 dBm
signal ground (SG) FG connected to SG through
100 ohm resistor
Figure B
V.35
Test Mode
4
4
3
EIA-232
Test Mode
496-14719-02
(S1-4)
(S1-3)
Switch 1
V.32
Analog
DBM
Interface
(S1-1)
ON
S1
3
2
1
2
1
Frame Ground/
Signal Ground
(S1-2)
Switch Setting Function
S1-1
V.32
ON
(default)
OFF Programmable transmit output
Analog
DBM only
ON Frame ground (FG) connected to
S1-2
OFF
(default)
ON
S1-3
(default)
OFF Disables EIA-232 Test mode
ON
S1-4
(default)
OFF Disables V.35 Test mode
ON is to the left as you face the front of the DSU. OFF is to the right.
Permissive transmit output level of –9 dBm
level between –12 dBm and 0 dBm
signal ground (SG) FG connected to SG through
100 ohm resistor Enables EIA-232 Test mode;
Pin 25 controlled by the DSU
Enables V.35 Test mode; V.35 lead NN controlled by the DSU
2-33610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Powering Up the DSU
CAUTION
The power cord and ac transformer have a 3-wire grounding-type plug with a grounding pin. This is a safety feature. Grounding of the unit is vital to ensure safe operation. Do not defeat the purpose of the grounding plug by modifying it or by using an adapter.
Prior to installation, use an outlet tester or voltmeter to check the ac receptacle for earth ground. If the power source does not provide a ground connection, consult an electrician to determine another method of grounding the unit before proceeding with the installation.
. Procedure
1. At the rear of the DSU, insert the round end of the power cable into the receptacle labeled POWER.
V.35
CC/DC
BACKUP
3-Prong
Grounded
AC
Wall Outlet
2. Connect the 3-prong plug at the other end of the cable to an ac outlet.
LINE
POWER
Transformer
Low
Voltage
AC Power
In
Table-Top
AC
495-14703
NOTE
Before connecting the DSU to any network, ensure that approved primary protectors have been installed on the circuit in accordance with Article 800 of the National Electric Code, NFPA 70, in the United States and Section 60 of the Canadian Electric Code, Part 1, in Canada.
Power-Up Routine
When you apply power for the first time, the DSU
performs a power-up routine and:
Determines what hardware options are installed, if
. These may include DBM and MUX for
any TDM/MCMP.
Runs a Device T
hardware option. All front panel lights flash on and off.
est on the DSU and each installed
2-4 December 1996 3610-A2-GB46-60
Model 3610 Installation
. Procedure
1. Watch
2. Continue
The DSU power-up routine can be:
Initiated using the Reset selection in the Control
branch.
the LCD during the tests.
Power-Up Tests Please Wait . . .
F1
The
results of each test display briefly as Pass,
F2
F3
Fail, or Abrt. The tests take about 20 seconds to complete. Y
ou are looking for successful test
results.
DSU MUX
s P
F1
ass
F2
F3
Pas
if you receive successful messages. If a Fail message appears or an installed hardware option does not appear, refer to Appendix E,
oubleshooting and
Tr
Fr
ont Panel Messages
Saving and Changing Configuration Options
For
Model 3610 and Model 361
configurations options from:
A front panel, or
A 6700 or 6800 Series NMS, or
An async terminal (Model 3610 standalone only)
Appendix B provides a Basic Configuration
W
orksheet, which is a summary of Basic DSU mode configuration option sets. Use the worksheet, the menu tree in Appendix A, and Chapter 4, Tables, for reference.
Configuration options supporting TDM, MCMP digital bridging are in Document No. 3610-A2-GB48. Configuration options supporting DBMs are in Document No. 3610-A2-GB49.
The Model 3610 is preconfigured at the factory for FacT with default settings for a tributary, point-to-point circuit, and a data rate of Auto. Set the data rate to match the service provider’
.
If you have a point-to-point configuration:
s rate.
Enable one unit as the control
Enable the other unit as the tributary
Set the link configuration option (Table 4-3)
1 DSUs, change
Configuration Option
, and
Disabled with the PowerOnT
st General
configuration option.
2-53610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Home Screen Display
Pressing the key (double-up arrow) on the front panel changes the display on the Home screen. The following is an example of the Home screen display:
Port1 DSU Auto T Local Remot
F3
Port 1
F1
= DTE port or aggregate data stream
F2
currently monitored and reflected by DTE status indicators
DSU
Auto
= Operating mode
Default setting displays until actual data
=
rate is detected
T
= Network position of DSU (tributary in
this example)
In the following LCD examples, the shaded area below the front panel shows the additional options that appear when the
or
key is pressed. Hardware selections
are filtered when not installed.
Configure: Opts PList Dir
F1
F2
Phone Addr ChgMd Term SPID
Menu
Select
3.
Opts (for Configuration Options). The
following screen appears.
Load from: Activ Remt Usr1
F1
F2
Usr2 Usr3 FacC FacT FacB
MPTC MPTT
F3
F3
o save and change options:
T
. Procedure
From the Home screen, as shown above, select
1. Local (F1). The following screen appears on the LCD.
Local Mode: Stat Bckup Test
F1
F2
Confg Ctrl
access the Configuration (
2. To
key until Confg appears. Press the
the function key below Confg. The following screen appears.
F3
Confg) branch, press
4. The
selections on the screen are configuration option sets stored in the DSU’s memory. Table 2-1 lists the
Load from
menu selections and their
source.
NOTE
You are advised to first save the factory default settings to store a set of working configuration options before changing any configuration options.
From the Load from
menu, any selection except Remote loads a complete set of configuration option values into a working buffer.
2-6 December 1996 3610-A2-GB46-60
Model 3610 Installation
5. After changing and not saving configuration options, the following prompt appears when the
or
key is pressed.
Save Options? Yes No
F1
6. If you press F1 for Y
F2
es, the
F3
Save To screen
appears.
Save to: Activ Remt Usr1
F1
F2
F3
Usr2 Usr3 FacC FacT FacB
MPTC MPTT
Save to is not displayed, press
If
until the
prompt appears. When you press a function key from the Save to
screen, the DSU performs a verification routine to ensure that the configuration options chosen are compatible.
Table 2-1
Default Configuration Option Sets
Load
from
Activ Active: Currently active configuration options for
the addressed DSU; use to change and save configuration options.
Remt Remote: Configuration options that can be
retrieved from a selected tributary DSU; these will be from the tributary’s Active set and appear based on local hardware. They are filtered when the front panel is locked.
The selected option set can then be displayed, edited, and saved back to the same tributary, another tributary, or the control DSU. The five factory default option sets do not appear when in Remote mode.
Remote is filtered for a multipoint tributary or a
unit with Diag Type of None. Usr1 User 1: User-defined option sets. Usr2 User 2: User-defined option sets.
*
Usr3
FacC Factory Control: Control DSU factory default
FacT Factory Tributary: Tributary DSU factory default
User 3: User-defined option sets, and factory
default settings for a DBM-
DBM-D, DBM-I, DBM-S, and DBM-V; does not
function as a DSU).
settings.
settings.
Source Of
Configuration Options
X
(Model 361
1
ou must select SA
7. Y
VE for changes to take effect. After selecting SAVE, the following screen appears.
Edit/Save: SAVE DSU Diag
F1
F2
DBM Gen Bckup MUX PrtSp
LPDA
Continue with network connections and verification testing. When finalized, you can edit and save additional configuration options.
F3
FacB Factory Digital Bridge: Central-site digital bridge
factory default settings. FacB is filtered when MUX CCA is not installed.
MPTC Multipoint Control: Multipoint Control DSU
factory default settings. MPTC is filtered when TDM CCA is installed.
MPTT
*
When configuring a DBM-X, do not SAVE to Usr3.
Multipoint T factory default settings.
ributary: Multipoint Tributary DSU
Refer to Chapter 3, Chapter 4, and Appendix E for details regarding configuration of your unit. Use the Appendix B worksheet for recording configuration option changes stored in Usr1, Usr2, or Usr3. For a complete list of DSU factory default settings, refer to Table A-1.
2-73610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
DDS Network Connection
NOTE
Before connecting the DSU to the DDS network, ensure that approved primary protectors have been installed on the circuit in accordance with Article 800 of the National Electric Code, NFPA 70, in the United States and Section 60 of the Canadian Electric Code, Part 1, in Canada.
To connect the DSU to the DDS network:
. Procedure
1. Plug the DDS network interface RJ48S cable into the DSU jack labeled
2. For Canada, plug the 6-pin cable end (feature number 3600-F1-006) into the wall jack.
DDS Network
Connection
LINE.
Line
POWER
V.35
CC/DC
BACKUP
LINE
If connecting the DSU to a LADS network, set the data rate. There are distance limitations that govern the use of DSUs on the network. See Appendix F for LADS connection distances.
Network Verification Testing
Perform verification testing after any installation. Refer to the Link Configuration option, Table 4-3.
. Procedure
1. For a multipoint link configuration, request a device Identity report to ensure that the DSU is addressed properly (ID from the Status branch).
NOTE
The Model 3610 is delivered with a network address set to
254.
2. For a point-to-point link or multipoint link configuration, verify the port speed [Prt(Kbps) from DSU Options].
3. From the control, perform a Digital T DDS circuit to ensure that the network is functioning (DT from the Test branch).
est on the
If a remote DSU is also connected to the network and
there are no other facility alarms, the:
s green
DSU’
OK LED lights.
Alrm indicator is no longer lit.
Health and Status screen no longer displays a
No Signal
message. The DDS data rate displays Auto while detecting a rate. Change the Rate(Kbps) to a set rate when the data rate has been detected.
2-8 December 1996 3610-A2-GB46-60
RJ48S
Wall Jack
495-14578-02
Model 3610 Installation
4
DTE Connections
The
distance between the DSU and the DTE must be within the EIA-232 or V.35 interface limits. Refer to Appendix F for LADS connection distances.
For the EIA-232 connector:
The typical maximum distance is 50 feet at data
rates no greater than 19.2 kbps.
For distances greater than 50 feet or data rates
higher than 19.2 kbps, use short, high quality cable with low capacitance and a DTE capable of supporting the distance and data rate.
As specified in EIA-232-D, ensure that the distance
is not greater than 50 feet and the ef
fective shunt capacitance of the circuit does not exceed 2500 pF Calculate the cable capacitance per foot and multiply by the number of feet of cable.
When Port 1 requires a speed higher than 19.2 kbps, the port interface should be set to V.35. For all models using the V
.35 connector
, the maximum distance recommended between the DSU and the DTE is 1000 feet.
To install the Model 3610 DTE connection:
. Procedure
1. Connect the plug end of the DTE cable to the proper port on the back panel of the DSU (EIA232 or V.35). Tighten the two holding screws, if present, to secure the connector
POWER
LINE
BACKUP
CC/DC
Power
Line
Backup
CC/DC
V.35
.
EIA 232
EIA 232V.35
495-1470
NOTE
If connecting the DTE to the V.35 connector, set the DTE Port in General Configuration Options to V.35 so the DSU can communicate with the DTE (Table 4-4). The default for this configuration option is EIA232.
2. Connect the other end of the cable to the appropriate port on the DTE. Tighten the two holding screws, if present.
.
3. Perform Local Loopback (LL) and DTE Loopback tests. Refer to the Test Branch
section
of Chapter 3.
Network Diagnostic Connection
A
hubbing device and an M6BJ cable are needed to connect the control DSU to a 6700 or 6800 Series NMS. The hubbing device provides two 8-pin modular jacks for diagnostic channel (DC) and control channel (CC) connections.
NOTE
When installing 3600 Series DSUs and 3400 Series or DATAPHONE II modems on the same diagnostic channel, install the DSU ahead (upstream) of the modems. This ensures that the DSU maintains contact if the modem loses power.
2-93610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
1
To
install the hubbing device:
SNA Diagnostic Interface Verification
. Procedure
1. Plug the 4-pin modular plug of the hubbing device
CC/DC
BACKUP
CC OUT/DC IN
located on
V.35
Hubbing
Device
3000HUBBING DE
MODEL #3000-F3
into the modular jack labeled CC/DC the rear of the DSU.
NMS Network
Connection
CC/DC
LINE
POWER
To
NMS
CC IN/DC OUT
M6BJ
Cable
3000HUBBING DEVICE MODEL #3000-F3-300
CC IN/DC OUT
. Procedure
1. Enable the LPDA option (refer to Table 4-5).
2. Send a DSU/CSU and Line Status test from the
IBM NetV
iew console to the control DSU and
each tributary.
As the status for each DSU is returned to NetV
3. check the network address. If the address is correct, the verification procedure is complete. Refer to Appendix D,
SNA Diagnostics
, for
additional configuration information.
Async Terminal Connection
Use
a CC-to-DB25 cable to connect an async terminal to a DSU. This feature is available for the Model 3610 standalone unit only Appendix C,
Async T
. T
o enable the async terminal, see
erminal Operation
.
. Procedure
1. Plug the 4-pin modular plug of the DSU CC-to-DB25 cable (feature number 3600-F3-504) into the DSU jack labeled CC/DC.
iew,
496-14723-0
2. Plug one end of the 6-pin cable into the hubbing device jack labeled
3.
Plug the opposite end of the M6BJ cable into the
CC IN/DC OUT
.
appropriate 6700 or 6800 Series NMS jack.
Refer to your COMSPHERE 6700 or 6800 Series NMS documentation to control and configure the DSU from the NMS.
Async Terminal
Connection
CC/DC
V.35
CC/DC
BACKUP
LINE
POWER
Holding Screws
T o Async
T erminal
495-14577-02
2. Connect the EIA-232 (DB25) end of the cable to the async terminal. T
ighten the holding screws.
2-10 December 1996 3610-A2-GB46-60
Front Panel Operation
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panels 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Async Terminal Operation 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Structure 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top-Level Menu 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local/Remote Menu Branches 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Branch 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Health and Status 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Health and Status 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expanded Health and Status 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subnetwork Health and Status 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Status 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Quality 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identity 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal Power 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backup Branch 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Branch 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abort 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Test 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loopbacks 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local Loopback 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Loopback 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Loopback 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Digital Loopback 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bilateral Loopback 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Test 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End-to-End Test 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bit Error Rate Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lamp Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Tone Test 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Branch 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Storage Areas 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote DSU 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Poll List 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Directory 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Address 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Protocol Mode 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Async Terminal 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPID 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3-13610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Control Branch 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Control 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEDs 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Leads 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying External Leads 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Security 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview
You can manage a 3600 Series DSU from:
The front panel
An async terminal
An NMS
This chapter describes how to manage the DSU using the front panel. Refer to Appendix C for async terminal operation.
The menus are organized as a branching hierarchy or menu tree. Appendix A contains this menu tree. Appendix B contains a Configuration W Basic mode configuration option settings. Basic mode represents a DSU with no additional hardware features installed. Refer to these reference materials as you proceed through the DSU’
s menus.
Refer to your COMSPHERE 6700 or 6800 Series NMS documentation to control and configure the DSU from the NMS.
orksheet with
The front panel for both models provides a 2-line,
16-character LCD and keypad for accessing menus to:
Monitor health and status
Initiate dial backup operations
Initiate diagnostic tests
Set, change, and save configuration options
The front panel’
s LCD displays the result of any command initiated from the front panel. Front panel basic operation does not vary with the addition of DSU options (DBM, TDM, MCMP However
, menu or selection displays vary based on
, or SNA Diagnostic Interface).
features installed and enabled.
LCD
F1
F3
F2
Front Panels
The front panel is the user interface to the DSU. There
are two types of front panels:
The front panel on the Model 3610 (Figure 3-1)
The shared diagnostic control panel (SDCP) used
with the Model 361 COMSPHERE 3000 Series Carrier
3-2 December 1996 3610-A2-GB46-60
1 (Figure 3-2) in a
OK
COMSPHERE 3610
Network/Device
Alarm
Alrm Test Dial TXD RXD
Test
Mode
Dial
Backup
Figure 3-1. Model 3610 Front Panel
RTS CTS DTR LSDDSR
107
105 106 108 109104103
DTE Status
Indicators
496-12347b-06
Front Panel Operation
1
Network/
Device Alarm
Test Mode
Dial Backup
DTE
Status
Indicators
SDCP
Indicator
(Front Panel)
Status
Ok Alrm Test Dial
TXD
103
RXD
104
RTS
105
CTS
106
DSR
107
DTR
108
LSD
109
Front Panel
Spkr
Multirate
DSU
3611
496-14714-0
Figure 3-2. Model 3611 DSU Faceplate
Moves Up One Level
from Current
Display
LCD First
Line
LCD
Second
Line
Returns
Display
Top-Level
Menu
Port 1 DSU 9.6 T Local Remot
F3
Left
Scroll
Key
F1
F2
Function
Keys
Keypad
There are seven keys on the Model 3610 front panel.
The
The
The
these keys move the cursor one character to the left or right to allow one entry at a time. All menus and display screens wrap around. Scrolling takes you to the first or last selection of the menu.
The F1, F2, or F3 function keys select the item
displayed directly above the key on the LCD. Refer to the following table.
key terminates any work in progress. key returns to the previous display.
and
keys scroll. For input screens,
to
Right
Scroll
Key
LCD
The 2-line, 16-character LCD on the front panel
displays the following information:
Menus: The menu structure is provided in
Appendix A and the menu branches appear throughout this chapter.
Input Screens:
customer ID, the network address of a remote DSU, or test durations. Input screens, such as test run time, appear with a blinking cursor to indicate that a field can be changed.
Display Scr
information and test results.
Used to enter information such as a
eens: Provide configuration
Function
Key
F1
LCD Input Screen
Each key press increments the
number, usually by 1.
F2
Each key press decreases the
number by the appropriate amount.
F3 One of the following appears, depending on
the purpose of the current display:
Enter Selects the value displayed. Undo Voids any current changes. Dial Dials the telephone number shown
on the first line of the display. Available with installed DBM.
Enab Enables options. Disab Disables options. Displ Allows viewing of EIA lead status.
3-33610-A2-GB46-60 December 1996
COMSPHERE 3600 Series Data Service Units
Status Indicators
Status indicators continuously provide information on
OK
Alrm
Test
Dial
LEDs
TXD RXD
RTS CTS DTR LSDDSR
107
105 106 108 109104103
the current operating condition of the DSU or DBM.
able 3-1 describes all status indicators.
T
Model 3610 DSU status indicators appear on the front panel.
The carrier-mounted Model 361
1 status indicators
Network/Device
Alarm
Test
Mode
Dial
Backup
DTE Status
Indicators
496-14716-01
appear on the SDCP.
Table 3-1
DSU Status Indicators
LED Label
OK Green Health and status indicator: DSU operation is normal. The OK LED flashes two times per second
Alrm Red Health and status indicator: There is an alarm in the local or remote DSU, DBM, or DDS facility, or
Color Description
when a message from an NMS is present. When lit, the DSU has not detected any alarm listed under Alrm, below.
there is a corrupted configuration. For a DSU with TDM or MCMP, the alarm may be in the communications path between the DSU and TDM or MCMP circuit card.
Alarms at the local or remote DSU cause the Alrm status indicator to light on the affected DSU. Refer to Table E-5, Device Health and Status Messages, for further details. DBM health and status messages are in Document No. 3610-A2-GB49.
Test Yellow When the active core is being tested, the active DSU or DBM device is either performing a test or
other DSUs or DBMs are in Test mode.
The DSU or DBM is automatically put into Test mode when a remote DSU or DBM is performing a test disruptively. A DSU or DBM in Test mode has the DTE interface turned Off.
DSU with TDM or MCMP: Any test involving the TDM or MCMP also involves the DSU. The test is integrated into the DSU’s Health and Status report. When the active core is being tested, any port included in the active core is also tested.
Dial Yellow DBM is active:
Rapid flashing: Call establish in progress Slow flashing: Call established but in Standby mode Steady ON: Backup call established and active
TXD, RXD, RTS, CTS, DSR, DTR, LSD
Green DTE status indicators: Internal lead states at the DSU/DTE interface for circuit designations:
Control circuit active (CTS, DSR, DTR, LSD, and RTS)
or
Data circuit spacing (RXD and TXD)
DSU with TDM or MCMP: The circuit external lead states for any TDM or MCMP ports can be selected through the front panel’s Control branch.
Model 3610 DSU: The monitored port is displayed on the front panel LCD. Model 361
1 DSU with TDM or MCMP:
The TDM or MCMP faceplate indicates the monitored port with port LED lit. DTR is always on. Refer to DTE Status on front panel for DTR status.
Front Panel
(Model 361 only)
Yellow The currently selected DSU at the SDCP: The SDCP addresses one DSU at a time.
1
Model 361
1 DSU with TDM or MCMP: The TDM or MCMP circuit card has the same address as
the associated DSU and is also addressed.
3-4 December 1996 3610-A2-GB46-60
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