Paradyne 3800PLUS User Manual
COMSPHERE
3800
Document No. 3980-A2-GB30-41
P
LUS
MODEMS
USER’S GUIDE
February 2002
COMSPHERE 3800Plus Modems
COMSPHERE
3800
Plus
Modems
User’s Guide
3980-A2-GB30-41
6th Edition (February 2002)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release to
this manual.
For the 3810Plus standalone modems the Universal Service Order Code (USOC) for Permissive mode is RJ11C. The
Canadian equivalent to the USOC is CA11. For the 3811Plus carrier-mounted modem the USOC for Permissive mode is
RJ21X. The Canadian equivalent to the USOC is CA21A.
Warranty, Sales, and Service Information
Contact your local sales representative, service representative, or distributor directly for any help needed. For additional
information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or
Paradyne worldwide office locations, use one of the following methods:
• 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
— Outside the U.S.A., call 1-727-530-2340
Trademarks
All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service
marks of their respective owners.
Document Feedback
We welcome your comments and suggestions about this document. Please mail them to T echnical Publications, Paradyne
Corporation, 8545 126th Ave. N., Largo, FL 33773, or send e-mail to userdoc@eng.paradyne.com. Include the number and
title of this document in your correspondence. Please include your name and phone number if you are willing to provide
additional clarification.
Printed on recycled paper
COPYRIGHT 1998, 2002 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 February 2002 3980-A2-GB30-41
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or
included in the manual.
2. 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.
3. Do not allow anything to rest on the power cord and do not locate the product where
persons will walk on the power cord.
4. 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.
5. 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.
6. 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.
Safety Instructions
7. Input power to this product must be provided by one of the following: (1) a UL Listed,
CSA Certified power source with a Class 2 or Limited Power Source (LPS) output for
use in North America, or (2) a certified power source with a Safety Extra Low Voltage
(SELV) output for use in the country of installation.
8. 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.
B3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Notices
!
Government Requirements and Equipment Return
Certain governments require that instructions pertaining to modem connection to the public
switched telephone network be included in the installation and operation manual. Specific
instructions are listed in the following sections.
Note that 3810Plus and 3811Plus are the model names for the model numbers 3980 and 3981,
respectively. The modems collectively are called 3800Plus modems.
United States
Notice to Users of the Public Switched 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 Model 3810Plus modem and on the
circuit card assembly of the Model 3811Plus. If requested, this information must be provided to the
telephone company.
2. Page A of this manual contains the Universal Service Order Codes (USOC) associated with the
services on which the equipment is to be connected.
C October 1998 3980-A2-GB30-40
Government Requirements
3. The Ringer Equivalence (REN) is used to determine the quantity of devices which 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). T o 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 the maximum RENs
for the calling area.
4. If the 3800Plus modem causes harm to the telephone network, the telephone company will notify
you in advance that temporary discontinuance of service may be required. But if advance notice is
not practical, the telephone company will notify the customer as soon as possible. Also, you will
be advised of your right to file a complaint with the FCC if you believe it is necessary.
5. The telephone company may make changes in its facilities, equipment, operations, or procedures
that could affect the operation of the equipment. If this happens, the telephone company will
provide advance notice in order for you to make the necessary modifications in order to maintain
uninterrupted service.
6. If you experience trouble with this equipment, please contact your sales or service representative
(as appropriate) for repair or warranty information. If the product needs to be returned to the
company service center for repair, contact them directly for return instructions using one of the
following methods:
• 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
— 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 user is not authorized to repair or modify the equipment.
8. This equipment cannot be used on public coin service provided by the telephone company.
Connection to Party Line Service is subject to state tariffs. (Contact the state public utility
commission, public service commission or corporation commission for information.)
9. The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a
computer or other electronic device to send any message via a telephone fax machine unless such a
message clearly contains, in a margin at the top or bottom of each transmitted page, or on the first
page of the transmission, the date and time it is sent, and an identification of the business, or other
entity , or other individual sending the message, and the telephone number of such business, or
other entity, or individual.
In order to program this information, follow the steps outlined in the manual supplied with your
fax software.
10. An FCC compliant telephone cord with modular plugs may be 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.
D3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Canada
Notice to Users of the Canadian Public Switched 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 wiring associated with a
single line individual service may be extended 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 the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone line and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
CAUTION
Users should not attempt to make such connections
themselves, but should contact the appropriate
electric inspection authority, or electrician, as
appropriate.
The Load Number for this equipment is on the label on the modem. The Load Number (LN)
assigned to each terminal device denotes the percentage of the total load to be connected to a
telephone loop which is used by the device to prevent overloading. The termination on a loop may
consist of any combination of devices subject only to the requirement that the total of the Load
Numbers of all devices does not exceed 100.
If your equipment is in need of repair, refer to the procedure in the Government Requir ements and
Equipment Return section.
E October 1998 3980-A2-GB30-40
Table of Contents
Preface
Objectives and Reader Assumptions vii. . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Use This Manual vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE Models 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDC Feature 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional ETC Feature 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. 3810
3. 3811
Plus
Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3810Plus Modem Package 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3810Plus Modem Installation 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Connection 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial-Line Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3810Plus 4-Wire/2-Wire Leased-Line Network Connection 2-4. . . . . . . . .
AC Power Supply Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Management System Connection 2-5. . . . . . . . . . . . . . . . . . . . . .
Modem Power-Up 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing 3810Plus Modems 2-6. . . . . . . . . . . . . . . . . . . .
Plus
Installation
Overview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3811Plus Modem Package 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3811Plus Modem Installation 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing 3811Plus Modems 3-4. . . . . . . . . . . . . . . . . . . .
i3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
4. Front Panel Operation
5. Call Setup Branch
6. Status Branch
Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Control Panels 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DCP Operation 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Structure 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Factory Configuration Options 4-11. . . . . . . . . . . . . . . . . . . . . . .
Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Setup Branch 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Branch 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Test Branch
Overview 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Branch 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Configure Branch
Overview 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Branch 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration T ables 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Configuration Options 8-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Control Branch
Overview 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Branch 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Firmware Download 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Remote Branch
Overview 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11. Security
Overview 11-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Branch 11-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Password Entry T echniques 11-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Database T able Examples 11-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii October 1998 3980-A2-GB30-40
12. Fax Operation
Overview 12-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fax Operation 12-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13. AT Command Set and S-Registers
Overview 13-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Modes 13-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Guidelines 13-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AT Command List 13-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S-Register List 13-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A. Menu Tree A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Result Codes B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Troubleshooting C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. T echnical Specifications D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E. Pin Assignments E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. ITU-T V.25bis Dialing Commands and Responses F-1. . . . . . . . . . . .
G. Default Configuration Options G-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
H. Equipment List H-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I. Synchronous Data Compression I-1. . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
Glossary
Index
iii3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
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iv October 1998 3980-A2-GB30-40
Table of Contents
List of Figures
Figure Page
2-1 3810Plus Modem 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 3810Plus Rear Panel 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 3600 Hubbing Device 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 3811Plus Modem 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Installing a 3811Plus Modem 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 3810Plus Front Panel 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Optional SDCP, 3811Plus Faceplate, and Optional SDU 4-2. . . . . . . . . . . . . . . . . . . . .
4-3 3800Plus LCD and Keypad 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Dial Backup 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1 Local Analog Loopback 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2 Remote Digital Loopback 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3 Local Digital Loopback 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4 Pattern T est and Local Analog Loopback Test 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-5 Pattern T est and Remote Digital Loopback Test 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-6 End-to-End Pattern T est 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1 DCP Configuration Process 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2 AT Command Configuration Process 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-1 VF Pin Orientation E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-2 Wiring Diagram — 8-Position to 6-Position Crossover Cable E-4. . . . . . . . . . . . . . . . .
v3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Table Page
4-1 3800Plus DCP LEDs 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 SDCP LEDs 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 T op Level Menu Status 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Common Operational Messages 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Dial Access Security Messages 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Valid Dial Command Modifier 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1 DTE Interface Configuration Options 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2 DTE Dialer Configuration Options 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-3 Line Dialer Configuration Options 8-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-4 Dial Line Configuration Options 8-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-5 Leased Line Configuration Options 8-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-6 V.42/MNP/Buffer Configuration Options 8-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-7 T est Configuration Options 8-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-8 Miscellaneous Configuration Options 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-9 Security Configuration Options 8-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1 Edit Password Table Group Options 11-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2 Set Answer Security Group Options 11-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3 Set Originate Security Group Options 11-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-4 Security Database Table Using VF-Side Passwords 11-12. . . . . . . . . . . . . . . . . . . . . . . . .
11-5 Security Database Table Using DTE-Side Password 11-13. . . . . . . . . . . . . . . . . . . . . . . . .
11-6 Security Database Table Using Both VF-Side and DTE-Side Password 11-13. . . . . . . . .
11-
13-1 3800Plus AT Commands 13-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13-2 3800Plus S-Registers 13-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-1 Result Codes B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-1 Modem Integrity C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-2 Modem – DTE Connection C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-3 Modem – VF Connection C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-4 Online Operation C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-5 Leased-Line Operation C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-6 Dial Backup Operation C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-1 T echnical Specifications for COMSPHERE 3800Plus Modems D-1. . . . . . . . . . . . . . . .
E-1 EIA-232-D Pin Assignments E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-2 VF Connector Pin Assignments E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-1 V.25bis Commands F-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-2 V.25bis Response Messages F-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-1 Factory Default Configuration Options G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-1 SDC Negotiation Configuration Scenarios I-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-2 SDC Performance Measurements I-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Tables
7 Security Database T able Using Paired VF-Side and DTE-Side Passwords 11-14. . . . . . .
vi October 1998 3980-A2-GB30-40
Preface
Objectives and Reader
Assumptions
This manual describes how to install and operate the
3810Plus (standalone) and 3811Plus (carrier-mounted)
modems. The reader is assumed to have a basic
understanding of modems and their operation.
How to Use This Manual
Chapter 1 provides information about the features of
3800Plus modems.
Chapter 2 provides instructions for installing 3810Plus
modems.
Chapter 3 provides instructions for installing 3811Plus
modems.
Chapter 4 provides the information required to operate
the Model 3810Plus using the front panel and the Model
3811Plus using the COMSPHERE 3000 Series Carrier’s
shared diagnostic control panel (SDCP).
Chapters 5 through 11 describe the seven branches of
the front panel command sets:
• Chapter 5 describes the Call Setup branch.
• Chapter 6 describes the Status branch.
• Chapter 7 describes the T est branch.
• Chapter 8 describes the Configure branch.
Chapter 12 provides general information about
operating 3800Plus modems in fax mode.
Chapter 13 provides instructions for displaying and
changing AT commands and S-Registers.
Appendix A provides a menu tree for 3800Plus
modems.
Appendix B provides a list and description of result
codes issued by 3800Plus modems.
Appendix C provides instructions for performing
diagnostic tests when data communications problems
occur.
Appendix D provides technical specifications for
3800Plus modems.
Appendix E provides EIA RS-232 and VF TELCO pin
assignments, and auxiliary cable diagrams.
Appendix F provides V.25bis dialing information.
Appendix G provides a list of all default configuration
options available for the four non-cellular factory preset
configurations: Async Dial, Sync Dial, Sync Leased, and
UNIX Dial.
Appendix H is an equipment list for 3800Plus
modems, including optional features and cables.
Appendix I describes the Synchronous Data
Compression (SDC) feature.
The Glossary provides a description of terms used
throughout this manual.
• Chapter 9 describes the Control branch.
• Chapter 10 describes the Remote branch.
• Chapter 11 describes the Security branch.
vii3980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Related Documents
3000-A2-GA31 COMSPHERE 3000 Series
Carrier, Installation Manual
3610-A2-GZ45 3600 Hubbing Device, Feature
Number 3600-F3-300,
Installation Instructions
3980-A2-GZ41 COMSPHERE 3811Plus
Modem Installation
Instructions
6700-A2-GY31 COMSPHERE 6700 Series
Network Management System
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:
http://www .paradyne.com
Select Service & Support → Technical Manuals
viii October 1998 3980-A2-GB30-40
Introduction
1
Overview
The COMSPHEREr 3810Plus and 3811Plus modems,
extensions of the award-winning COMSPHERE 3800
Series, are a new generation of full-feature, high-speed
dial modems that offer reliable asynchronous and
synchronous operation over dial- or leased-lines networks.
The 3800Plus modems’ software defineability allows for
the addition of future enhancements and features.
Through their downloading capability, 3800Plus
modems can be upgraded to the latest firmware, requiring
no new hardware investment or on-site personnel, and
little or no downtime. These modems support a wide
range of modulation schemes and offer control using
either AT commands, the user-friendly diagnostic control
panel (DCP) or the optional COMSPHERE 6700 Series
Network Management System (NMS). The NMS
performs extensive monitoring, testing, reporting, and
restoral functions to assist in managing your network.
High-speed data transfer and reliable throughput at line
rates as high as 33,600 bps over dial lines is achieved by
employing the latest techniques in ITU-T V.42bis/MNP
Class 5 data compression and ITU-T V.42/MNP error
correction. The modems can send data to the DTE at
speeds as high as 115,200 bps (in asynchronous mode) or
128,000 bps (synchronous mode).
The 3800Plus modem is extremely versatile when used
in modem pooling environments; it allows multiple users
to temporarily customize modem settings, thereby
permitting communication with the calling modem. Upon
disconnection, the 3800Plus modem falls back to its
original configuration settings and resumes normal
operation.
The modem’s compatibility with a number of dialing
methods and protocols, such as asynchronous AT
commands, ITU-T V.25bis dialing, and the user-friendly
diagnostic control panel (DCP), permits the 3800Plus
modem to be used in a variety of applications and
environments while also allowing control over modem
configuration, dialing, and diagnostics. The 3800Plus
modems offer preset factory configurations containing the
most often used modem settings. These factory presets
provide quick configuration for any asynchronous or
synchronous dial, synchronous leased, UNIX
hardware-based dial, or cellular environments.
The 3810Plus is a 4-wire/2-wire standalone modem;
the 3811Plus is a carrier -mounted version of the
3810Plus.
Features
The 3800Plus modems have a wide variety of features.
• Dial-Line Modulations: ITU-T V.34 (up to
33,600 bps), V.32terbo (19,200 and 16,800 bps),
ITU-T V.32bis (up to 14,400 bps), V.32 (up to
9600 bps), V.22bis (2400 bps), V.22 (1200 bps),
V.21 (300 bps), Bell 212A (1200 bps), and
Bell 103J (300 bps).
• Four-wire Leased-Line Modulations: ITU-T V.34
(up to 33,600 bps), V.32terbo (19,200 and
16,800 bps), V.32bis (14,400, 12,000, 9600, 7200,
and 4800 bps), V.32 (9600 and 4800 bps), and
V.22bis (2400 bps).
• T wo-wire Leased-Line Modulations: ITU-T V.34
(up to 33,600 bps), V.32terbo (19,200 and
16,800 bps), V.32bis (14,400, 12,000, 9600, 7200,
and 4800 bps), V.32 (9600 and 4800 bps), and
V.22bis (2400 bps).
1-13980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
• Class 1 and Class 2 Group III Fax modulations:
ITU-T V.17 (14,400, 12,000, 9600, and 7200 bps),
V.29 (9600 and 7200 bps), and V .27ter (4800 and
2400 bps).
• Convenient migration to new or optional features
through software downloading.
• ITU-T V.42bis and MNP Class 5 data compression.
• Virtual error free data integrity with ITU-T V.42
and MNP Level 4 error control.
• Automatic and manual single call dial backup and
dial standby capabilities for 2-wire and 4-wire
leased-line applications.
• A unique Paradyne modem pooling feature that
preserves the answering modem’s permanent
configuration, but allows multiple users to
temporarily adapt parameters for individual
requirements.
• Dial-line data rates from 300 bps–33,600 bps.
Leased-line rates from 2400 bps–33,600 bps.
• Asynchronous dial DTE data rates from
300 bps–115,200 bps.
• A diagnostic control panel (DCP) that displays the
connect status, data rate, type of error control or
compression, test results, alarm status of DTE or
VF parameters for both local and remote modems.
• Storage of up to 10 telephone numbers to directory
locations.
• Compatibility with the industry de facto standard
AT Command set.
• Dialing via DCP, AT commands, DTR, or ITU-T
V.25bis commands.
• Configuration of software options via the AT
Command set or DCP.
• High-speed transmission using asynchronous,
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire/4-wire leased
lines.
• Complement of self-tests, local and remote
loopbacks including ITU-T compatible V.54.
• Seven factory-defined configurations and two
user-defined configuration areas.
COMSPHERE Models
The COMSPHERE high-speed modem is available in
two models.
• The 3810Plus, a 4-wire/2-wire standalone unit
capable of operation on 2-wire dial, or 4-wire
leased or 2-wire leased lines.
• The 3811Plus, a 4-wire/2-wire carrier -mounted
modem for installation into a COMSPHERE
3000 Series Carrier; it is capable of operation on
dial, or 4-wire leased or 2-wire leased lines.
SDC Feature
The Paradyne proprietary Synchronous Data
Compression (SDC) feature allows an increase of
throughput in data transmission, and has an error
correcting procedure so that transmitted data is less
sensitive to channel disturbances.
SDC can be used with V.34 and V.32 family
modulations on dial or leased lines, and in a dial backup
or standby mode. See Appendix I, Synchronous Data
Compression, for more information.
Options
3800Plus modems also may have the following
optional features:
• Leased-Line Modulations: ITU-T V.33 (14,400 and
12,000 bps) and ITU-T V.29 (9600, 7200, and
4800 bps).
• Extended Security, permitting up to
3,000 passwords (3811Plus only).
• ETC (Enhanced Throughput Cellular)
Optional ETC Feature
Enhanced Throughput Cellular (ETC) is a technology
that improves connection speed, transmission rates, and
reliability over analog cellular networks. ETC must be
installed on both sides of the connection.
• Originate Security and three Answer Security
modes which guard against unwanted user access to
the host DTE.
• Directory #1 Callback capability.
1-2 October 1998 3980-A2-GB30-40
3810
Plus
Installation
2
Overview
The standalone 3810Plus modem (Figure 2-1) is
capable of either dial or 4-wire/2-wire leased-line
operation. It is controlled using AT commands or the
diagnostic control panel (DCP). The DCP consists of an
LCD which displays selections, three function keys and
four directional keys which allow you to maneuver and
choose DCP selections, and a row of 13 LED status
indicators which display modem activity. For a better
understanding of DCP operation, refer to Chapter 4, Front
Panel Operation.
The rear of the 3810Plus modem contains an ON/Off
power switch, a low voltage power connector, an 8-pin
modular jack for leased-line connection, an 8-pin modular
jack for dial-line connection, a 4-pin modular jack for
network management, and a DB-25-S DTE connector.
3810
and verify that the following items are present:
service representative. Return equipment using procedures
described in the Government Requirements and
Equipment Return section near the beginning of this book.
Plus
After opening the modem’s package, check for damage
• 3810Plus modem
• Power supply
•One 6-position modular cord (in selected models)
•One 8-position modular cord (in selected models)
•Quick Reference
If any hardware components are damaged, notify your
Modem Package
2-13980-A2-GB30-41 February 2002
COMSPHERE 3800Plus Modems
(3810
DIAGNOSTIC
CONTROL
STATUS
LEASED
Plus
DIAL
(OR LEASED
FOR 3820
ONLY)
Plus
DTE 1
)
NMS
LCD AND
POWER IN
POWER
ON/OFF
POWER
SUPPLY
496-14678-01
Figure 2-1. 3810
Customer-Supplied Equipment
The following customer-supplied equipment may be
required to complete a data communications system using
the 3810Plus modem:
• A DTE with an available RS-232D serial port.
• A standard RS-232D cable with a male DB-25-S
connector at one end to attach to the modem.
• One of the following modular dial or leased
network interfaces:
— RJ11C for dial permissive applications
— JM8 for leased-line applications
Plus
Modem
3810
Plus
Modem Installation
Before installing your standalone modem, make sure
your installation site is clean and well-ventilated. Allow
space around the modem for installing cables and
telephone line cords, and make sure the modem is located
within reach of the ac power outlet. The distance between
your modem and DTE should be minimized if DTE data
rates exceed 19,200 bps. Also, low capacitance cables
may be necessary for speeds greater than 19,200 bps or
distances greater than 50 feet.
The rear panel of a 3810Plus modem has the following
switches and connectors (see Figure 2-2):
• An ON/Off power switch.
• A barrel-type power receptacle for a wall-mount
transformer, or an 8-pin DIN type power receptacle
for a table-top power supply.
• An 8-pin modular keyed jack for 4-wire/2-wire
leased lines.
2-2 October 1998 3980-A2-GB30-40
3810Plus Installation
• An 6-pin modular keyed jack for dial (PSTN) lines.
• A 4-pin modular jack for network management
system (NMS) connection.
• A 25-pin DB-25-S receptacle for DTE interface.
Connecting 3810
Plus
Modems with Supplied
Cables
Figure 2-2 shows how 3810Plus modems are
connected to certain TELCO jack types using the supplied
cables. For other TELCO connections, refer to
Appendix D.
DTE Connection
Use the following procedure to connect the RS-232D
cable from the modem to the DTE:
1. Make sure the modem’s rear panel power switch is
Off.
2. Connect the DB-25-P (male) connector on the
cable to the DB-25-S (female) connector labeled
DTE 1 (Figure 2-2) on the modem’s rear panel.
Use a small screwdriver to tighten the cable to the
modem.
3. Connect the DB-25-P connector on the cable to
the DB-25-S connector on the DTE. Use a small
screwdriver to tighten the cable to the DTE.
8-POSITION
PLUG FOR
LEASED-LINE
NETWORK
OPERATION
6-POSITION PLUG
FOR PERMISSIVE
DIAL NETWORK
OPERATION
LEASED
(3810
Plus
)
DIAL
LEASED
(3820
Plus
)
DB-25-P
CONNECTOR
FOR DATA
TERMINAL
EQUIPMENT
OPERATION
DTE 1
SUB-MINIATURE
4-POSITION
PLUG FOR
NETWORK
MANAGEMENT
SYSTEM
OPERATION
NMS
PWR ON
POWER
SUPPLY
OFF
495-14677
Figure 2-2. 3810
Plus
Rear Panel
2-33980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Dial-Line Connection
Use the following procedure to connect the 3810Plus
modem to the dial network interface:
1. Insert the 6-position, 4-conductor modular plug
into the jack labeled DIAL/LEASED (Figure 2-2).
2. Insert the other end of the modular cord into the
dial network interface (“demarc”).
3810
Plus
4-Wire/2-Wire
Leased-Line Network
Connection
Use the following procedure to connect a 3810Plus
modem to the leased-line network interface:
1. Insert the 8-position, 8-conductor modular plug
into the jack labeled LEASED (Figure 2-2).
2. Insert the other end of the modular cord into the
leased-line network interface (“demarc”).
3. If you intend to use dial backup, follow steps
listed in Dial-Line Connection.
AC Power Supply Connection
WARNING
Power supplies from other
modems may fit into the
POWER connector, but
connecting the wrong power
supply can cause damage to
the modem or the power
supply.
Use the following procedure to connect the modem to
an ac power outlet:
1. Make sure the modem’s power switch is in the Off
position.
2. Insert the power transformer’s cylindrical
connector into the modem’s rear panel power
receptacle (Figure 2-2).
3. If your modem is equipped with a tabletop power
supply , plug the power cable into the power
supply .
4. Connect the power supply to a grounded ac power
outlet.
2-4 October 1998 3980-A2-GB30-40
3810Plus Installation
Network Management
System Connection
For the 3810Plus modem, use the following procedure
to connect the modem to the network management system
interface:
1. Insert the subminiature 4-position, 4-conductor
modular plug of the 3600 Hubbing Device
(Figure 2-3) into the jack labeled NMS
(Figure 2-2).
2. Connect the 3600 Hubbing Device to the network
management system.
Refer to the 3600 Hubbing Device, Feature Number
3600-F3-300, Installation Instructions for more
information. Installation for the 3810Plus modem is the
same as for the 3610 DSU.
Hubbing Device
CC OUT/DC IN
CC IN/DC OUT
8-Pin
Modular
Jacks
Pin
Numbers
CC IN/DC OUT
3000HUBBING DEVICE
MODEL #3000-F3-300
8
CC OUT/DC IN
1
8
1
4-Pin
Modular
Plug
6 Inches
Overall
496-13775-03
Modem Power-Up
Once your modem is properly connected to the DTE,
dial and/or leased lines, and ac outlet, press the modem’s
rear panel power switch to the ON position. The modem
begins a power-up self-test. This test takes several
seconds to perform, and verifies the operation of most
hardware components within the modem. If successful,
the LCD displays Power On Selftst Passed and continues
to the T op-Level menu screen.
Power On Selftst
Passed
F1
F2
If a failure occurs during the self-test, the LCD may
display Power On Selftst Failed for several seconds. The
LCD then may display the T op-Level menu screen with
the message Power on Fail appearing on the top line of
the LCD. Although a failure has occurred, the modem
may attempt to operate. If it does, you can activate a more
thorough self-test using the T est branch. Refer to
Chapter 7, Test Branch.
F3
Figure 2-3. 3600 Hubbing Device
2-53980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
Removing and Replacing
3810
the following steps:
Plus
T o remove and replace a 3810Plus modem, perform
1. Make sure the modem is offline, and toggle the
modem’s rear panel power switch to the Off
position.
2. Disconnect the power cord from the ac power
outlet, and then from the connector on the rear of
the modem.
3. Disconnect the dial and leased-line modular cords
from the modem’s rear panel.
4. Disconnect the DTE interface cable from the
modem’s rear panel.
If the modem is to be removed for service, return
it to the company using the procedures described
in Government Requirements and Equipment
Return near the beginning of this book.
5. Install the replacement modem as described in the
3810Plus Modem Installation section of this
chapter, and configure it the same way as the
modem being replaced.
Modems
2-6 October 1998 3980-A2-GB30-40
3811
Plus
Installation
3
Overview
The carrier-mounted 3811Plus modem (Figure 3-1) is
capable of dial or 4-wire/2-wire leased-line operation and
resides in a COMSPHERE 3000 Series Carrier. The
faceplate of the 3811Plus has 16 LED status indicators for
displaying modem activity and an audio speaker jack for
the carrier’s optional speaker .
The 3811Plus modem’s backplate has two DTE edge
card connectors that mount into a connector plate located
on the rear of the carrier. This connector plate has two
DB-25-S connectors. One provides an RS-232D DTE
interface, and the other is unused. The 3811Plus derives
ac power from the COMSPHERE 3000 Series Carrier’s
backplane, which is a common bus to all devices installed
in the carrier. The user interface with any 3811Plus is the
shared diagnostic control panel (SDCP), an optional
feature similar to the DCPs on the 3810Plus. For a better
understanding of DCP operation, refer to Chapter 4, Front
Panel Operation.
The COMSPHERE 3000 Series Carrier has a total of
17 slots. The first slot, Slot 0, is reserved for the shared
diagnostic unit (SDU) while the remaining 16 slots can
house up to 16 3811Plus modems, or for mixed networks,
a combination of 3811Plus modems and other Paradyne
access products, such as Model 3611 data service units.
An SDU is a circuit card that provides SDCP and network
management interfaces to access products installed in the
carrier. SDUs are only required if a single SDCP is used
by multiple COMSPHERE 3000 Series Carriers in a
cabinet, or if a network management system (NMS) is
used.
For more details on the COMSPHERE 3000 Series
Carrier, refer to the COMSPHERE 3000 Series Carrier,
Installation Manual.
3811
and verify that the following items are present:
service representative. Return equipment using procedures
described in the Government Requirements and
Equipment Return section near the beginning of this book.
Customer-Supplied Equipment
required for the installation of a 3811Plus modem:
Plus
After opening the modem’s package, check for damage
• 3811Plus modem
• Rear connector plate with DB-25-P edge card
connector
If any hardware components are damaged, notify your
The following customer-supplied equipment may be
• A COMSPHERE 3000 Series Carrier.
• A Shared Diagnostic Unit (SDU, required for
network management applications and multiple
carriers).
• T wo 50-pin mass termination cables, one Network
Interface Module (NIM) for modems installed in
Slots 1–8, and one NIM for modems installed in
Slots 9–16 (required for dial-line applications).
• One of the following dial or leased network
interfaces:
— 50-pin to modular cable (RJ11C) for dial
— 50-pin to modular cable (JM8) for leased line
• One 6-position to 6-position modular cord (required
for network management applications).
Modem Package
permissive applications
applications
• A Shared Diagnostic Control Panel (SDCP).
3-13980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
If the modem is to be managed by a network
management system, an SDU must be supplied and
properly connected to the network management controller.
For proper network management connection to the SDU,
refer to the appropriate network management system
user’s guide.
For installation of the 3000 Series Carrier into a
cabinet, refer to the COMSPHERE 3000 Series Carrier,
Installation Manual.
Faceplate
Status
Pwr
Alrm
142
Test
Dial
125
RI
Busy
Serv
SQ
3811
Plus
Modem Installation
The 3811Plus modem is designed for installation in a
COMSPHERE 3000 Series Carrier which supplies
operating power and the dial and/or leased-line network
connections. For correct power, DTE, dial-line,
leased-line, NIM, and network management cabling
information, refer to the COMSPHERE 3000 Series
Carrier , Installation Manual.
EIA232/V.24
Connector
EIA232/V.24
Edge Card
Connector
Rear
Connector
Plate
EIA232/V.24
103
TXD
104
RXD
105
RTS
106
CTS
107
DSR
108
DTR
109
LSD
Front Panel
Spkr
3811
Plus
Figure 3-1. 3811
Plus
Modem
Unused
496-14488-02
(3800)
RS366A/V.25
(3600/3500)
V.35
3-2 October 1998 3980-A2-GB30-40
3811Plus Installation
The installation of a 3811Plus varies slightly if an
SDCP is installed on the front of the carrier. To install a
3811Plus modem into the carrier without an SDCP,
perform the following steps:
CAUTION
If you remove the 3811
Plus
from the carrier, always use a
ground strap when handling
the modem. Always store the
Plus
3811
in an antistatic bag
when it is removed from the
carrier .
1. At the rear of the carrier, install the rear connector
plate. Make sure the plate uses the same slot
position as that intended for the modem.
Loosely fasten the plate. This allows for slight
adjustments later when installing the modem.
2. At the front of the carrier, hold the modem
vertically , with the latch on its faceplate in the
open position, and insert it into the top and bottom
card guides of one of the slots numbered 1–16 (see
Figure 3-2).
Slide the modem into the slot, aligning the modem
with the rear connector plate, until the backplane
connector and DTE connector seat firmly into the
back of the carrier. The faceplate latch
automatically closes as you push the modem into
the carrier. To lock the modem into the carrier,
press the faceplate latch until a click is heard.
3. If the carrier is connected to power, the Power
LED on the faceplate of the 3811Plus lights up.
After several seconds the modem completes its
power-up self-test in which all faceplate LEDs
light up. If the modem fails, or an alarm condition
exists, the Alrm LED on the faceplate lights up or
flashes.
Return to the rear of the carrier and tighten the
rear connector plate.
Figure 3-2. Installing a 3811
Plus
Modem
3-33980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
If the modem is to communicate with an installed
SDCP, install the modem as described above and perform
the following steps:
1. Press the
appears in the carrier selection entry.
2. Press the F1 () or F2 (↓) key until the carrier
number you want appears on the LCD.
The carrier number selection has a range of 1 to 8
since a single SDCP can control a configuration of
up to eight carriers. (This is only possible if the
SDU is installed.)
3. Press the
selection entry.
4. Press the F1 () or F2 (↓) key until the slot
number (1–16) you want appears on the LCD.
Ignore the AB designator that appears on the LCD
since it is not applicable to the 3811Plus modem.
5. Press the
communication with the selected modem.
key on the SDCP. The cursor
Select
key to position the cursor on the slot
key to place the SDCP in direct
Select
Removing and Replacing
3811
and replace a 3811Plus modem. Perform the following
steps:
Plus
It is not necessary to power down the carrier to remove
1. Rotate the circuit pack lock until the release tab is
exposed.
2. Press down on the release tab and pull the modem
away from the carrier’s backplane.
Modems
CAUTION
If you remove the 3811
modem from the carrier,
always use a ground strap
when handling the modem.
Always store the 3811
an antistatic bag when it is
removed from the carrier.
Plus
Plus
in
The LCD displays the T op-Level menu for the
selected modem. In addition, the Front Panel LED
on the modem’s faceplate lights up.
6. Once you have determined that the modem is
installed properly and completed its power-up
self-test, rotate the circuit pack lock until it covers
the faceplate latch (Figure 3-2). This prevents the
modem from accidently being removed once it is
installed in a carrier.
3-4 October 1998 3980-A2-GB30-40
Front Panel Operation
4
Overview
This chapter describes how to use the diagnostic
control panel (DCP) of the 3800Plus modem.
Diagnostic Control Panels
There are two types of DCPs: the front panel on the
standalone 3810Plus modem, and the shared diagnostic
control panel (SDCP), an optional feature used with a
3811Plus modem installed in a COMSPHERE 3000
Series Carrier. Both DCPs have a 2-line, 32-character
liquid crystal display (LCD) and keypad through which
T op-Level menu branches are accessed to perform the
following:
• Initiate and disconnect dial operations
• Check modem status
• Set up configuration options
• Initiate diagnostic tests
• Access remote modems through the local modem’s
DCP
The LCD displays the result of any command initiated
using the DCP. Most of these operations can be performed
from an attached asynchronous DTE using the
AT command set.
3810
Plus
DCP
The DCP of the 3810Plus modem (Figure 4-1)
contains status indicators, pushbutton-type keys, and an
LCD.
F1 F2
F3
COMSPHERE 3810
DTR
Plus
PWR ALRM
DIAG
108 142
Figure 4-1. 3810
CTS TXD LSD RXD TEST
109
103
106
105
Plus
Front Panel
SQRTS
RATE
DIAL
104
496-14486-01
4-13980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
3811
Plus
Faceplate and Shared Diagnostic
Control Panel (SDCP)
The shared diagnostic control panel (SDCP) is used to
manage carrier-mounted 3811Plus modems. Use the
SDCP to issue commands to view and select configuration
options on, or to monitor tests for, a specific 3811Plus
modem.
The faceplate of the 3811Plus contains LED status
indicators that monitor the operation of the modem. After
the SDCP is connected to the modem, the Front Panel
indicator of the selected modem lights to show that the
modem is connected.
Figure 4-2 shows the SDCP and the shared diagnostic
unit (SDU) it interfaces with.
Status Indicators
The status indicators on a 3800Plus modem
continuously provide information on the modem’s
operating condition. All of the status indicators on the
3810Plus modem are on the DCP (Figure 4-1), whereas
the status indicators for the carrier-mounted 3811Plus
modem are located on its faceplate, the SDCP, and the
SDU faceplate (Figure 4-2).
The standalone 3810Plus modem’s DCP has 13 LEDs,
and the carrier-mounted 3811 Plus has 16 LEDs. These
LEDs are listed and described in T able 4-1; LEDs specific
to one model type have the appropriate model number
shown in the table.
Status
Diag
Diag
SDU
Status
142
125
103
104
105
106
107
108
109
Front Panel
3811
Plus
Pwr
Alrm
Test
Dial
RI
Busy
Serv
SQ
TXD
RXD
RTS
CTS
DSR
DTR
LSD
Spkr
OK
Alrm
In
Out
CARRIER SLOTS 1–16
SDU12345678910111213141516
Select
SELECT
KEY
OK Alarm BckUp Test EC
STATUS
INDICATORS
OK Alarm BckUp Test EC
F1 F2 F3
KEYPAD
COMSPHERE 3000
LCD
496-14487-01
NETWORK
DEVICE
ALARM
DIAL
BACKUP
MODE
Figure 4-2. Optional SDCP, 3811
ERROR
CORRECTION
TEST
Plus
Faceplate, and Optional SDU
4-2 October 1998 3980-A2-GB30-40
Table 4-1
3800
Plus
DCP LEDs
Label Color Indicates
Pwr green ON – Power is on and the modem is capable of operating.
Front Panel Operation
Alrm red
Diag
(3810
Plus
only)
T est/142 yellow The modem is involved in a test. Normal operation is not possible.
Dial green Quick Flashing – The modem is attempting to establish a call over the dial network.
RI/125
(3811
Plus
only)
Busy
Plus
Plus
only)
only)
(3811
Serv
(3811
SQ yellow The receive telephone line signal is degraded.
TXD/103 green The modem is receiving data from the DTE to transmit. (ON equals space.)
RXD/104 green Data is being transferred to the DTE. (ON equals space.)
RTS/105 green RTS signal is ON.
green The modem has responded to a diagnostic command from network management.
green A ringing signal is being received.
yellow ON – The modem is placed in a forced busy condition and is off-hook.
yellow ON – The modem is connected to the carrier service line rather than the normally assigned
Flashing – A malfunction has been detected in either the modem or COMSPHERE
3000 Series Carrier.
Slow Flashing – The modem is in Dial Standby mode.
ON – The modem has established a dial connection.
OFF – A dial connection does not exist.
dial network.
CTS/106 green CTS signal is ON, or the modem is configured to force ON CTS, or AT commands are
enabled.
DSR/107
(3811
Plus
only)
DTR/108 green The DTE has turned ON DTR, or the modem is configured to ignore DTR.
LSD/109 green The modem has detected a valid carrier signal and is capable of transferring data to the DTE,
Front Panel
(3811
Plus
only)
Rate
Plus
(3810
only)
green DSR signal is ON, or the modem is configured to force ON DSR.
or the modem is configured to force ON LSD.
yellow ON – The modem is connected to the carrier’s SDCP.
yellow ON – The modem is connected at a data rate lower than the line rate it is configured for.
OFF – The modem is connected at its configured line rate.
4-33980-A2-GB30-40 October 1998
COMSPHERE 3800Plus Modems
The SDCP LEDs are listed and described in T able 4-2.
Table 4-2
SDCP LEDs
Label
OK green Power is ON and the
Alarm red The modem has detected
BckUp yellow The modem, originally
T est yellow The modem is involved in
EC green Modem is in Error Control
Color Indicates
modem is capable of
operating.
a problem with its
operation. For example,
the modem failed a
self-test.
configured for leased-line
operation, is now
operating on dial networks
in a Dial Backup mode.
a test. Normal operation is
not possible.
mode.
MOVES UP
ONE LEVEL
FROM CURRENT
DISPLAY
LCD
TOP
LINE
HIDDEN
CHOICE
INDICATORS
RETURNS
DISPLAY TO
TOP-LEVEL
MENU
Idle:28.8
Call_Setup
F3
RIGHT
SCROLL
KEY
LCD and Keypad
LEFT
SCROLL
KEY
LCD BOTTOM LINE
Figure 4-3. 3800
F1
F2
FUNCTION KEYS
Plus
LCD Display
The LCD consists of a top line and bottom line, with
each displaying a maximum of 16 characters at a time. If
additional information appears on the LCD than what is
currently displayed, a hidden choice indicator (< or
or >) appears in the upper right-hand corner of the LCD.
Use the
to display more selections onto the LCD.
or key to scroll in the indicated direction
DCP Operation
The 3800Plus modem’s diagnostic control panel (DCP)
is the user interface to all functions used to configure and
control the modem. This interface includes the status
light-emitting diodes (LEDs), and a 2-line, 32-character
liquid crystal display (LCD) and keypad (Figure 4-3).
Use the DCP to display the following kinds of
information:
• Operational status
• Configuration options
• DCP entry displays
• Remote modem access
Hidden Choice Indicators
The Hidden Choice Indicators serve as an alert that
other selections are available besides what is currently
displayed on the LCD. These indicators appear as one of
the following symbols:
Right Scroll Indicator
The right scroll indicator displays when more choices
are available to the right of what is currently displayed on
the LCD.
>
4-4 October 1998 3980-A2-GB30-40
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