Paradyne 3821PLUS User Manual
COMSPHERE
3821
Document No. 3821-A2-GB20-40
P
LUS
MODEM
USER’S GUIDE
January 1999
COMSPHERE 3821Plus Modem
COMSPHERE
3821
Plus
Modem
User’s Guide
3821-A2-GB20-40
5th Edition (January 1999)
Changes and enhancements to the product and to the information herein will be documented and issued as a new release or a limited
revision of this manual.
For the 3821Plus modem the USOC for Permissive mode is RJ21X. The Canadian equivalent to the USOC is CA21A. For single line
connection to an analog private line, an adapter cable should be used to facilitate connection to a JM8 jack. The Canadian equivalent is
CA40A.
FCC Registration number: (See label on modem)
Ringer Equivalence number (REN): (See label on modem)
Canadian Certification number: (See label on modem)
Canadian DOC Load number: (See label on modem)
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.
Printed on recycled paper
COPYRIGHT 1999 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 January 1999 3821-A2-GB20-40
!
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.
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.
Safety Instructions
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COMSPHERE 3821Plus Modem
Notices
!
C January 1999 3821-A2-GB20-40
Safety Instructions
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.
United States
Notice to Users of the Public Switched Telephone Network
1. This equipment complies with Part 68 of the FCC rules. On the circuit card is a label that contains, among other information,
the FCC registration number and ringer equivalence number (REN) for this equipment.
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.
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). To be certain of the number of devices that may be connected to
the line, as determined by the total RENs, contact the telephone company to determine the maximum RENs for the calling
area.
4. If the 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 of 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.
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COMSPHERE 3821Plus Modem
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.
The Load Number for this equipment is listed on a 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 page A in the front of this document for contact information.
United Kingdom
Ringer Equivalence Number
The Ringer Equivalence Number (REN) is a customer guide indicating approximately the maximum number of items of apparatus that
should be connected simultaneously to the telephone line. The sum of the RENs should not exceed four. This value includes any
BT-provided instrument which may be assumed to have a REN of 1 unless marked otherwise. The REN of this modem is 1.
Connection to Leased Lines
If any other apparatus, including cable or wiring, is connected between the apparatus and the point of connection to any speechband
circuit, then all that other apparatus shall comply with the following:
1. The overall transmission characteristics of all that other apparatus shall be such as to introduce no material effect upon the
electrical conditions presented to one another by the apparatus and the speechband circuit; and
2. All that other apparatus shall comprise only:
(i) apparatus approved for the purpose of connection between the apparatus and a speechband circuit; and
(ii) cable or wiring complying with a code of practice for the installation of equipment covered by this part of BS 6328 or
such other requirements as may be applicable.
E January 1999 3821-A2-GB20-40
Safety Instructions
This modem is suitable for connection to BT circuits with signalling at a nominal frequency of 2280 Hz and may be connected to
multipoint or point-to-point circuits. The apparatus does not require signalling or otherwise use the frequency range 0–200 Hz.
No d.c. interaction is intended between the modem and the telephone network.
This apparatus may be directly connected to a speechband circuit or connected to a relevant branch system for speechband circuits.
All European Countries
Safety Notice
Interconnection circuits between this modem and any other equipment should be such that the equipment continues to comply with the
requirements of EN41003 for TNV (Telephone Network Voltage) circuits and EN60950 for SELV (Safety Extra Low Voltage) circuits
after making connection between circuits.
Japan
Notices
This equipment is classified in the 1st Class category. When used in a residential
area or in an adjacent area thereto, radio interference may be caused to radios and
TV receivers, etc. VCCI-1
Restrictions
Due to JATE (Japan Approvals Institute for Telecommunications Equipment) regulations, only 3 attempts to dial a number are
permitted in a 3-minute period. If a fourth attempt is made to dial the same number, the modem returns the ERROR return code. This
restriction applies to the number dialed from the command line or from a directory. An occurrence of the restriction is canceled when a
different number is dialed, or when 3 minutes have elapsed.
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Table of Contents
Preface
Objectives and Reader Assumptions v. . . . . . . . . . . . . . . . . . . . . . . . .
How to Use This Manual v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDCP Operation 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. 3821
Plus
Modem Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3821Plus Installation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Communications Software 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Factory Configuration Options 2-5. . . . . . . . . . . . . . . . . . . . . . . .
3. SDCP Menus
Menu Structure 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Status Messages 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Select Branch 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quick Configuration Display 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Setup Branch 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Branch 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T est Branch 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Branch 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Branch 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Firmware Download 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Branch 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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COMSPHERE 3821Plus Modem
4. AT Commands and S-Registers
5. Fax Operation
6. Remote Access
Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Modes 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Guidelines 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AT Command List 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S-Register List 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovering AT Commands 4-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Initialization Strings 4-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fax Operation 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Access 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Security
Overview 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Password T ypes 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Originate Security 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Answer Security 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Callback Security 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Branch 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Configuration Options 7-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. SDCP Menu Tree
Overview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Result Codes
Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Troubleshooting
Overview C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Firmware Download C-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii January 1999 3821-A2-GB20-40
D. Technical Specifications
E. Pin Assignments
EIA-232-E Pin Assignments E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JM8 to RJ11 Crossover Cable E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NIM Cable Pin Assignments E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. ITU-T V.25bis Dialing Commands and Responses
Overview F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Request Commands F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Response F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Answer Commands F-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Normal (PRN) F-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Request List of Stored Numbers (RLN) F-3. . . . . . . . . . . . . . . . . . . . . .
List Stored Number
Response (LSN) F-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Response F-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
G. Equipment List
H. Country-Specific Configuration Options
Configuration Options by Country H-1. . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary
Index
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COMSPHERE 3821Plus Modem
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iv January 1999 3821-A2-GB20-40
Preface
Objectives and Reader
Assumptions
This guide describes how to install the 3821Plus circuit
card and operate the 3821Plus modem. It is intended for
all users of the 3821Plus modem.
Each 3821Plus card comprises three modems. In
general this guide refers to the 3821Plus modem with
regard to operation and the 3821Plus card with regard to
installation. The term 3800Plus refers to all the modems
in the 3800Plus series, including the 3810Plus, 3811Plus,
3820Plus, 3821Plus, and 3825Plus.
How to Use This Manual
Chapter 1 provides information about 3821Plus
hardware and software features, including the front panel
and status indicators.
Chapter 2 provides instructions for installing the card,
selecting factory configuration options, recovering the
ability to use AT commands, and using AT command
initialization strings.
Chapter 3 shows the options menus available from the
Shared Diagnostic Control Panel (SDCP).
Chapter 4 provides instructions for displaying and
changing AT commands and S-registers. These commands
control all aspects of the modem’s operation.
Chapter 5 provides general information about fax
modem operation.
Chapter 6 shows how to use the SDCP of a
COMSPHERE modem to access and control a remote
3800Plus modem.
Chapter 7 describes the security features of the
3821Plus modem, including AT commands and SDCP
controls used to set security configuration options.
Appendix A shows the menu trees available from the
SDCP.
Appendix B lists result codes produced by the modem.
Appendix C provides instructions for performing
diagnostic tests when data communications problems
occur, and explains the Automatic Firmware Download
process.
Appendix D lists the technical specifications of the
3821Plus modem.
Appendix E provides cable pin assignments.
Appendix F provides V.25bis dialing information.
Appendix G provides an equipment list.
Appendix H shows configuration options whose
validity or default values vary according to country code.
The Glossary provides a description of terms used
throughout this guide.
v3821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
Related Documents
3000-A2-GA31 COMSPHERE 3000 Series
Carrier Installation Manual
3980-A2-GB30 COMSPHERE 3800Plus
Modems, User’s Guide
6700-A2-GY31 COMSPHERE 6700 Series
Network Management System,
User’s Guide
6800-A2-GE26 COMSPHERE 6800 Series
Network Management System,
User’s/System Administrator’ 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
vi January 1999 3821-A2-GB20-40
Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SDCP Operation 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keypad 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Overview
The 3821Plus is a member of the COMSPHERE
3800 Series Modem product line. The 3821Plus card
comprises three modems, permitting as many as
48 modems to be installed in a single 3000 Series Carrier.
Each is a software-definable high-speed modem that
offers reliable asynchronous and synchronous operation
over dial or two-wire leased-line networks.
Features
The 3821Plus modem has a wide variety of features,
including:
• 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).
• T wo-wire Leased-Line Modulations: ITU-T V.34
(up to 33,600), 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).
• Class 1 and Class 2 Group III Fax modulations:
ITU-T V.17 (14,400, 12,000, 9600, 7200 bps),
V.29 (9600, 7200 bps) and V .27ter (4800,
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 Levels 2–4 error control.
• Asynchronous dial DTE data rates from 300 bps to
115,200 bps.
• Optional Enhanced Throughput Cellular (ETC),
which improves reliability and speed over cellular
links.
• Compatibility with the industry de facto standard
AT Command set.
• High-speed transmission using asynchronous,
synchronous, or UNIX devices over full- or
half-duplex dial networks or 2-wire leased lines.
• Supported under the COMSPHERE 6700 or
6800 Series Network Management System (NMS).
• Compatibility with standalone COMSPHERE
3800Plus, 3800, and 3900 Series modems’ Remote
Access Mode, which allows users to view the
configuration options of a 3821Plus modem from a
remote Diagnostic Control Panel (DCP) or Shared
Diagnostic Control Panel (SDCP).
1-13821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
• Storage of up to 10 telephone numbers to directory
locations.
• Originate Security and three Answer Security
modes.
• Callback Security with telephone directory index or
telephone number.
• T wo factory-defined configurations and two
user-defined configuration areas.
Diag
Diag
Status
Status
OK
Alrm
In
Out
Alrm
Alrm
Alrm
Mod
Mod
Mod
Front Panel
A
B
C
A
B
C
TXD
RXD
CD
RI
DTR
OH
Status Indicators
The status indicators on a 3821Plus circuit card
continuously provide information on the modem’s
operating condition. The status indicators for the
3821Plus card are located on its faceplate, the SDCP, and
the Shared Diagnostic Unit (SDU) faceplate (Figure 1-1).
The 3821Plus card has 13 Light Emitting Diodes
(LEDs). These LEDs are listed and described in T able 1-1.
SDU
3821
Plus
CARRIER SLOTS 1–16
SDU12345678910111213141516
Select
OK Alarm BckUp Test EC
SELECT
KEY
OK Alarm BckUp Test EC
NETWORK
DEVICE
ALARM
STATUS
INDICATORS
DIAL
BACKUP
ERROR
CORRECTION
TEST
MODE
Figure 1-1. Optional SDCP, 3821
F1 F2 F3
KEYPAD
Plus
Faceplate, and Optional SDU
COMSPHERE 3000
LCD
496-14802-01
1-2 January 1999 3821-A2-GB20-40
Table 1-1
3821
Plus
Introduction
LEDs
Label
ALRM A red Alarm A
ALRM B red Alarm B
ALRM C red Alarm C
Mod A green Modem A
Mod B green Modem B
Mod C green Modem C
TXD green Transmit Data
Color Indicates
ON: Modem A has detected a problem with its operation.
ON: Modem B has detected a problem with its operation.
ON: Modem C has detected a problem with its operation.
ON: The status of Modem A is reflected by the TXD, RXD, CD, RI, DTR, and OH LEDs. If the
Front Panel LED is ON, Modem A is connected to the SDCP.
ON: The status of Modem B is reflected by the TXD, RXD, CD, RI, DTR, and OH LEDs. If the
Front Panel LED is ON, Modem B is connected to the SDCP.
ON: The status of Modem C is reflected by the TXD, RXD, CD, RI, DTR, and OH LEDs. If the
Front Panel LED is ON, Modem C is connected to the SDCP.
ON: The modem indicated by the A, B, or C LED is receiving data from the DTE to transmit.
The TXD and RXD LEDs blink for 5 seconds after a modem is selected using NMS or the SDCP.
RXD green Receive Data
ON: The modem indicated by the A, B, or C LED is transferring received data to the DTE.
The TXD and RXD LEDs blink for 5 seconds after a modem is selected using NMS or the SDCP.
CD green Carrier Detect
ON: The modem has detected a valid modulation carrier signal and is capable of transferring
received data to the DTE.
RI green Ring Indicate
Cycling ON and Off: The modem indicated by the A, B, or C LED is receiving a ring signal.
DTR green Terminal Ready
ON: The DTE connected to the modem indicated by the A, B, or C LED has turned ON the
DTR (Data Terminal Ready) signal, or the modem is configured to ignore DTR.
Off: The DTR signal of the modem indicated by the A, B, or C LED is Off.
OH green Off-Hook
ON: The modem indicated by the A, B, or C LED is off-hook and set for Dial.
Off: The modem indicated by the A, B, or C LED is on-hook and set for Dial.
Cycling ON and Off: The modem indicated by the A, B, or C LED is set for leased line operation.
Front
Panel
amber Front Panel
ON: The SDCP is connected to the modem indicated by the A, B, or C LED.
1-33821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
SDCP Operation
Key
The SDCP on the 3000 Series Carrier is the user
interface to all functions used to configure and control the
3821Plus modem. This interface includes the status
LEDs, and a two-line, 32-character Liquid Crystal
Display (LCD) and keypad (Figure 1-2).
MOVES UP
ONE LEVEL
FROM CURRENT
DISPLAY
LCD
TOP
LINE
HIDDEN
CHOICE
INDICATOR
RETURNS
DISPLAY TO
TOP-LEVEL
MENU
Idle:33.6 >
MDMA mdmb mdmc
F3
RIGHT
SCROLL
KEY
LEFT
SCROLL
KEY
LCD BOTTOM LINE
F1
F2
FUNCTION KEYS
Figure 1-2. SDCP Keypad
The key returns you to the Top-Level menu
display from anywhere in the menu tree.
Pressing
while changing configuration options
displays the message Save Straps? Yes No. If No is
selected, changes made to configuration options are not
saved and the T op-Level menu appears. If Yes is selected,
then changes are saved to either Active (Saved),
Customer 1, or Customer 2 configuration areas.
Key
The key moves you up one level in the menu tree.
and
Keys
Use the and keys to move the viewing
window left or right and to scroll the remaining branches
and selections into view. A maximum of three selections
can be displayed at one time.
These keys also allow you to move the cursor one
character to the left or right on data entry displays; for
example, to allow entry of one digit at a time.
F1, F2, F3 Keys
LCD
The LCD consists of a top line and bottom line, with
each displaying a maximum of 16 characters at a time. If
additional information is available than what is currently
displayed, a hidden choice indicator (< or
or >)
appears in the upper right-hand corner of the LCD. The
list of choices does not scroll around to the first choice
when you reach the last choice. The
and keys
allow you to display the other choices.
If a local 3800Plus modem establishes a connection
with a remote 3800Plus modem via the Remote branch,
appears in place of the hidden choice indicator on
then
both modems.
Keypad
The SDCP of the COMSPHERE 3000 Series Carrier
has eight keys.
Function keys select the LCD choice that appears
above the function key; they are labeled F1, F2, and F3. If
a selection spans more than one function key, then any of
those keys choose that selection.
Numerical Scroll Indicators
T o enter a number on the SDCP, such as a telephone
number to be stored in the modem’s directory, use the
function keys F2 () or F3 (). A displayed number is
increased or decreased according to whether the key
associated with the up arrow or the down arrow is pressed.
In other applications, such as password entry, only the up
arrow is displayed, and the displayed numbers can only be
incremented.
The
Key
key is used to connect the SDCP to a card
Select
Select
in a specific slot in the carrier. The Front Panel LED of
the 3821Plus card turns ON when the SDCP is connected
to it.
1-4 January 1999 3821-A2-GB20-40
3821
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3821Plus Installation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Carrier 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the NIM 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable the NIM 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attach the DTE Interface Assembly 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Circuit Card 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the DTE 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Communications Software 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Factory Configuration Options 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Configurations Using the SDCP 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Configurations Using AT Commands 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plus
Modem Installation
2
Overview
This chapter describes how to install the 3821Plus card
and connect both provided and customer-supplied cables
to the modems. In addition, it describes how to configure
3821Plus modems for specific applications.
3821
equipment:
Plus
A typical 3821Plus installation requires the following
• Eight 3821Plus cards
• One DTE interface assembly with 24 ports
• One Network Interface Module (NIM) with a
50-position short ribbon cable
• This user’s guide
• Three DTE (RS-232D) cables or three 8-position
modular cables with six 8-position modular to
DB25 adapters for each 3821Plus card
• One 50-position to network interface cable for each
NIM
Installation
See Appendix G, Equipment List.
If any hardware components are damaged, notify your
sales representative. Return equipment using the
procedures described in the Government Requirements
and Equipment Return section in the front of this guide.
Install the Carrier
The 3821Plus card resides in a COMSPHERE
3000 Series Carrier. The carrier must be installed in a rack
before the modem cards can be installed in the carrier.
The 3821Plus card requires a Shared Diagnostic
Control Panel (SDCP) for control and configuration of
individual modems. It also requires a Shared Diagnostic
Unit (SDU) if the modems will be under control of an
NMS, or if the SDCP is used for more than one carrier.
Instructions for the installation of the SDCP and SDU, as
well as the 3000 Series Carrier and its power supply, can
be found in the COMSPHERE 3000 Series Carrier
Installation Manual, document number 3000-A2-GA31.
• A 66A-punchdown block or RJ11 gang box
2-13821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
STANDOFF
NIM COVER
P24
P26 P25
J2 P22
P20 P19
J1
Figure 2-1. Installing the NIM
Install the NIM
A NIM can be installed on the left or right side of the
back of the 3000 Series Carrier.
" Procedure
1. If you are installing a NIM on the right side of the
carrier, press it onto the connectors P24 and P23. If
you are installing a NIM on the left side of the
carrier, press it onto the connectors P26 and P25.
P21
P23
TO P23
OR P25
TO P24
OR P26
NETWORK
INTERFACE
MODULE
(NIM)
495-14854
A 2-wire leased line connection to a JM8 interface
requires a 6-position to 8-position crossover cable. See
Appendix E.
NETWORK INTERFACE
CABLE
2. Fasten the NIM to the carrier with the four
standoffs provided. See Figure 2-1.
3. Position the NIM cover over the NIM.
4. Fasten the NIM cover in place with the four screws
provided. See Figure 2-1.
Cable the NIM
Connect one end of the short ribbon cable to the 50-pin
connector at the bottom of the NIM. Connect the other
end to P21 (on the right side of the carrier) or P22 (on the
left side of the carrier). See Figure 2-2.
Connect a network interface cable to the 50-pin
connector in the middle of the NIM. Connect the other
end to the dial or leased-line interface. This may be an
RJ11 gang box or a 66A-punchdown block. Wiring for the
50-pin NIM cable is shown in Appendix E.
SHORT
RIBBON
CABLE
P21 or P22
Figure 2-2. Cabling the NIM
495-14798
2-2 January 1999 3821-A2-GB20-40
3821Plus Modem Installation
Attach the DTE Interface Assembly
The eight-slot DTE interface assembly can be mounted
on the left or the right side of the carrier. If you are
installing only one interface assembly, it must be mounted
on the same side you installed the NIM.
3000 SERIES
CARRIER
TABS
SLOTS
" Procedure
1. Feed the eight tabs at the bottom of the DTE
interface assembly into the slots on the left or right
side of the carrier.
2. Insert the screws provided, but do not completely
tighten them. See Figure 2-3.
A
A
A
A
A
A
A
B
B
B
C
C
C
B
B
C
C
BACKPLATE
ASSEMBLY
B
B
C
C
495-14799
Figure 2-3. DTE Interface Assembly
2-33821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
Install the Circuit Card
Slide the 3821Plus card into its slot in the 3000 Series
Carrier. Press firmly until the back edge of the card seats
in the socket of the DTE interface assembly.
Figure 2-4 shows circuit cards in a carrier in which the
NIM and DTE interface assembly were installed on the
right side of the backplane.
" Procedure
1. Turn the circuit pack lock until it is vertical, locking
the 3821Plus card in place. See Figure 2-5.
2. When all cards are installed and locked in place,
tighten the screws on the DTE interface assembly.
Front Panel
495-14800
Figure 2-5. Circuit Pack Lock
495-14797
Figure 2-4. Installing the Card Into the Carrier
Connect the DTE
T o connect the DTE to the modem, you can use two
DB25 to 8-position modular adapters and an 8-pin
RJ45-type modular cable instead of an RS-232 cable with
DB25 connectors. Because of the large number of cables
required for typical 3821Plus installations, the slimmer
modular cable is recommended.
The connectors on the DTE interface assembly are
labeled, from top to bottom, A, B, and C. These markings
show which modem on a card is associated with each
connector.
" Procedure
1. Connect the DB25 adapter or the connector on an
RS-232 DTE cable to one of the DB25 connectors
on the DTE interface assembly. Use a small
screwdriver to fasten the connector to the
backplate.
2. Connect the DB25 adapter or connector on the
cable to the DB25 connector on the DTE. Use a
small screwdriver to fasten the cable to the DTE.
2-4 January 1999 3821-A2-GB20-40
3821Plus Modem Installation
Install Communications
Software
A computer commands and controls a modem through
communications software. This software uses the AT
command set to send instructions to the modem. A dumb
asynchronous terminal, however, does not require this
software since it can directly send AT commands.
The 3821Plus can be used with any major
communications software. Refer to your software’s user’ s
guide for installation procedures. For an overview of how
to use AT commands and a list of AT commands
supported by the 3821Plus, refer to Chapter 4, AT
Commands and S-Registers.
Select Factory Configuration
Options
After the modem passes the power-up self-test,
configure it for operation using one of the factory preset
configurations.
The preset configuration gives you a “head start” in
getting your modem operating and reduces the amount of
time required to configure your modem. For a better
understanding of SDCP operation and factory preset
configuration options, refer to Configure Branch in
Chapter 3.
Selecting Configurations Using the SDCP
496-14801-01
The 3821Plus modem has several factory preset
templates that contain the most commonly used
configuration options (straps) for
• Asynchronous Dial (shown as Async Dial on the
SDCP)
• Synchronous Dial (Sync Dial)
• Synchronous Leased (Sync Leased, Answer or
Originate mode)
• UNIX hardware network (UNIX Dial)
If ETC is installed:
• Cellular mobile (Cellular(Mobile))
• Cellular PSTN (Cellular(PSTN))
Your modem is shipped from the factory with the
Async Dial default configuration options stored in
memory . If Sync Dial, Sync Leased, UNIX Dial, or
Cellular is more appropriate for your configuration, then
you must change the factory setting using either the SDCP
or the AT command set as described in the following
sections.
The SDCP’s Liquid Crystal Display (LCD) consists of
two 16-character lines which display modem status,
control functions, and configuration options as well as
indicating your location in the T op-Level menu tree
(Appendix A).
T o change the factory template for each modem using
the SDCP, perform the following steps:
" Procedure
1. At the top level of the menu structure, select
Modem A, B, or C by pressing F1, F2, or F3.
2. Press the
3. Press the function key below Configure to select
the Configure branch.
The LCD now displays Ld EditArea frm.
4. Press the key until Factory comes into view.
Press the F1 key to display the factory preset
configurations.
Factory preset configurations are Async Dial, Sync
Dial, Sync Leased, UNIX Dial, and, if ETC is
installed, Cellular(Mobile), and Cellular(PSTN).
If Sync Leased is selected, you must choose either
Answer or Originate mode.
key until Configure comes into view.
2-53821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
5. Press the key until the appropriate factory
preset appears on the LCD, and press the
corresponding function key to select your choice.
6. Choose Function appears and displays the Edit and
Save functions.
7. Press the F3 key (Save) to save the new factory
preset configuration to one of three configuration
areas, Active (Saved), Customer 1, or
Customer 2.
(These three configuration areas are nonvolatile
memory locations. Active (Saved) contains the
most recently saved changes to any configuration
options. In the event of power loss, the modem
retrieves these configuration options. Customer 1
and Customer 2 are user-defined configuration
areas.)
The LCD now displays Sav EditArea to.
8. Press the
key until the appropriate
configuration area appears on the LCD, then press
the corresponding function key to select your
choice. (Saving configuration options to the Active
(Saved) configuration area automatically saves
them to the Active (Operating) configuration area.)
The LCD displays Command Complete.
9. The modem is now configured with the selected
factory template. Press the
key to return to the
T op-Level menu.
Refer to Configure Branch in Chapter 3 for more
information regarding default factory configuration
options.
Selecting Configurations Using
AT Commands
495-14829
When using AT commands, the following criteria must
be met:
• Make sure the asynchronous DTE’s communication
software is configured for 10-bit character format
(for example, 8 data bits, no parity, and 1 stop bit).
• Make sure the DTE (RS-232D) cable is attached to
the DTE connector at the rear of the COMSPHERE
3000 Series Carrier, and to the correct serial
communications port on the asynchronous DTE.
• On initial power-up, the modem is in Command
mode. T o verify that the modem is connected and
functioning properly , enter the following:
TYPE: AT
PRESS: Return (Enter)
The screen displays OK.
If the modem does not return OK, refer to Appendix C,
Troubleshooting.
NOTE
If you have already changed the
factory preset configuration you
may have lost AT command
control. To regain A T command
control, select, via the SDCP, the
Async Dial factory preset
configuration as described earlier
in
Selecting Configurations Using
the SDCP.
2-6 January 1999 3821-A2-GB20-40
3821Plus Modem Installation
T o change a factory template using AT commands,
perform the following steps (for more information on
changing factory templates using AT commands, refer to
Chapter 4, AT Commands and S-Registers).
" Procedure
1. Use the AT&F&W command to load the
appropriate factory configuration to the appropriate
storage area. Enter the following:
TYPE: AT&Fy&Wn
Where: y is one of the following Factory
configurations:
0 for Async Dial
1 for Sync Dial
2 for Sync Leased (Answer)
3 for UNIX Dial
4 for Sync Leased (Originate)
5 for Cellular (Mobile)
6 for Cellular (PSTN)
(NOTE: &F1, &F2, and &F4 remove AT command
control. The only way to return to AT command
control is through the SDCP as described earlier in
Selecting Configurations Using the SDCP. &F5
and &F6 are available only if ETC is installed.)
and
The &V (View) command can be used to display the
configuration options in effect. The output of the &V
command can be saved to a file and printed (using your
communications software), providing both a record of
your configuration and a worksheet for configuration
enhancements. Refer to Chapter 4, AT Commands and
S-Registers, for more on AT commands.
NOTE
When configuring your modem,
keep a record of its configuration
options as a future reference in
case the modem must be
replaced.
T o establish a connection with a remote modem, use
the D (Dial) command. Refer to Chapter 4, AT Commands
and S-Registers, for more information.
Where: n is one of the following storage areas:
0 for Active (Saved)
1 for Customer 1
2 for Customer 2
(NOTE: These three configuration areas are
nonvolatile memory locations. Active (Saved)
contains the most recently saved changes to any
configuration options. In the event of power loss,
the modem retrieves these configuration options.
Customer 1 and Customer 2 are user-defined
configuration areas.)
PRESS: Return (Enter)
2. The selected factory configuration is saved.
2-73821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
This page intentionally left blank.
2-8 January 1999 3821-A2-GB20-40
SDCP Menus
Menu Structure 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Status Messages 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Select Branch 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call Setup Branch 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnect 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Answer 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Directory 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering Telephone Numbers and Dial Command Modifiers into Directory Locations 3-10. . . . . . . . . . .
Status Branch 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VF 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identity 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Record 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Branch 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abort 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local Analog Loop 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Digital Loop 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local Digital Loop 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pattern 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Branch 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Editing and Saving a Configuration Option 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Interface 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTE Dialer 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Dialer 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Line 3-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leased Line 3-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V.42/MNP/Buffer 3-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test 3-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Misc 3-45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Configuration Options 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Branch 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Make Busy or Remove Make Busy 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Line or Disconnect Service Line 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Download Code 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clone To Remote 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To Local via DTE 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Firmware Download 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Download Failure 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Branch 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3-13821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
Menu Structure
An elaborate menu of options is available from a
Shared Diagnostic Control Panel (SDCP).
The menu tree is a hierarchical structure used to
display functions that configure and control local and
remote 3821Plus modems. It is accessed via the SDCP
and is shown in its entirety in Appendix A.
The menu tree contains the following branches:
Modem Select Used to select one of the three
modems on the card. The
modem shown in uppercase
characters is the modem
connected to the SDCP.
Quick
Configuration
Display
Call Setup Used to dial, disconnect, and
This hidden menu item
displays information about the
modem’s configuration, such
as line mode and rate.
answer telephone calls as well
as store up to 10 telephone
numbers in directory locations.
Status Used to monitor the current
status of the VF line and DTE
interface as well as view the
identity of the modem.
Test Used to begin and end various
modem tests.
Configure Used to change and save the
modem’s configuration
options.
Control Used to control the modem’s
hardware and software
functions.
Remote Used to access and control a
remote 3800Plus modem. See
Chapter 6, Remote Access.
Security Used to control the modem’s
dial access security. See
Chapter 7, Security.
(Modem Status)
MDMA mdmb mdmc
Call_Setup Control
Status
Test
Remote
SecurityConfigure
495-14520-01
3-2 January 1999 3821-A2-GB20-40
SDCP Menus
Modem Status Messages
Access to all menu tree branches from the SDCP
begins at the T op-Level menu, the head of the menu
hierarchy . The LCD’s top line identifies the modem
status, as listed in Table 3-1, while the bottom line
displays the main menu tree branches and operational
and dial access security messages, as listed in T able 3-2
and Table 3-3.
Top-Level Menu Status
Normal Operation
Status Message
Idle:
MR*
Leased:
OnLine:
MR*
MR* EC**
The modem is configured for dial network operation and is on-hook.
The modem is operating on leased lines at the displayed data rate.
Indicates the modem is online, in Data mode, and operating at the displayed data rate. EC (error
control) displays if error control is operational.
Messages listed in Table 3-2 are common operational
messages that occur during modem operation. These
messages normally appear on the second line of the
LCD.
Messages listed in Table 3-3 are dial access security
messages that can occur when the optional security
feature is installed.
The Top-Level menu’s main branches appear on the
LCD in the order of Modem Select, Call Setup, Status,
T est, Configure, Control, Remote, and Security.
Table 3-1
(1 of 3)
Indicates
Fax Tx:
Fax Rx:
Ring Indicate The local modem is receiving an incoming ring.
Test:
Make Busy Indicates the modem is in a Make Busy condition.
Power On Fail Indicates the modem has failed its Power-On Self-Test.
Self Health Fail Indicates a failure in the modem’s hardware components.
*** The Alarm Status Messages only appear when the Normal Operation Status Messages are displayed; the LCD
MR*
MR*
MR*
Alarm Status
Message***
*MR – Modem Rate indicates the data rate the modem is using, in bits per second. One of the following values appears:
300, 1200, 2400, 4800, 7200, 9600, 12K (12,000), 14.4 (14,400), 16.8 (16,800), 19.2 (19,200), 21.6 (21,600), 24K
(24,000), 26.4 (26,400), 28.8 (28,800), 31.2 (31,200), or 33.6 (33,600).
**EC – Error Control indicates the modem is online and using V.42 or MNP error control. One of the following values
appears after the modem rates listed above: MNP2, MNP3, MNP4, MNP5, V42, V42b, V42t (SDC) or NoEC. (NoEC
indicates the modem is connected in Buffer mode rather than error control. If an EC value does not appear , then the
modem is in Direct mode.)
alternates between the two message sets.
The modem is transmitting a fax on a dial line.
The modem is receiving a fax on a dial line.
The modem is in test mode operating at the displayed data rate.
Indicates
3-33821-A2-GB20-40 January 1999
COMSPHERE 3821Plus Modem
Table 3-1
(2 of 3)
Top-Level Menu Status
Normal Call
Setup Messages
Off Hook The modem is off-hook and waiting to dial a telephone number .
Dialing The remote modem is being dialed.
Training The modem is training or retraining.
EC Negotiating The local and remote modems are negotiating the highest possible level of error control
compatible between both modems. Once a level is selected, this LCD message disappears.
Call Failure
Messages
Busy Signal The answering modem is busy .
Delayed Number As a result of failed call attempts, this number may not be called at this time. Try again later.
(Only appears in countries where the number of repeated call attempts is limited.)
Dial Line in Use The modem is already operating on dial networks when another call attempt has been issued.
Forbidden Number As a result of failed call attempts, this number may not be called again. (Only appears in
countries where the number of repeated call attempts is limited.)
Invalid Number The modem has attempted to dial from a directory location that has no phone number.
No Answer Tone No answer tone has been received within the time limit specified by the No Answer Timeout
configuration option. The network tones (if any) could not be interpreted by the modem.
Indicates
Indicates
No Dial – DTR The modem cannot dial because DTR is Off.
No Dial – Test The modem cannot dial because it is running a Test.
No Dial Tone The modem has aborted the call because it cannot detect a dial tone.
No Quiet Answer The modem has detected No Quiet Answer (@) before the time-out setting of the No Answer
Ringback Timeout The answering modem has not answered within the time limit specified by the No Answer
Wrong Call The call was answered, but not by a modem; there was no answer tone.
Call Disconnect
Messages
ATH Disconnect The modem has disconnected due to an A TH command.
Bad Lines Disc The modem has disconnected because the lines do not support the modulation and/or data rate
No Carrier Disc The modem disconnects due to the loss of carrier signal from the remote modem.
DTR Disconnect The modem has disconnected due to the loss of DTR from the DTE.
EC Disconnect The modem has disconnected due to failure to negotiate Error Control mode.
Disconnect configuration option.
Timeout configuration option; a ringback signal was detected.
Indicates
selected.
3-4 January 1999 3821-A2-GB20-40
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