Paradyne 3910 User Manual
COMSPHERE
3900 SERIES MODEMS
MODELS 3910 AND 3911
POINT-TO-POINT/MULTIPOINT
INSTALLATION AND OPERATION MANUAL
Document No. 3910-A2-GN32-30
November 1996
COMSPHERE 3900 Series Modems
COMSPHERE
3900 Series Modems
Models 3910 and 3911
Point-to-Point/Multipoint
Installation and Operation Manual
3910-A2-GN32-30
4th
Edition (November 1996)
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 3900 Series standalone modems, the Universal Service Order Code (USOC) for Permissive mode is RJ11C. The
Canadian equivalent to RJ1
1C is CA1
1A. For 3900 Series carrier-mounted modems, the USOC for Permissive mode is
RJ21X. The Canadian equivalent to RJ21X is CA21A.
FCC Registration number:
See label on modem
Ringer Equivalence number (REN): See label on modem
Model 3910
Canadian Certification number: See label on modem
Canadian DOC Load number: See label on modem
Model 391
1
Canadian Certification number: See label on modem
Canadian DOC Load number: See label on modem
Warranty, Sales, and Service Information
Contact your sales or service representative directly for any help needed. For additional information concerning warranty,
sales, service, repair
• Via the Internet:
• V
ia T
elephone: Call our automated call system to receive current information via fax or to speak with a company
representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
, installation, documentation, or training, use one of the following methods:
V
isit the Paradyne World W
ide W
eb site at http://www
.paradyne.com
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 E 1996 Paradyne Corporation. All rights reserved.
This
publication is protected by federal copyright law
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 A
Paradyne
Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of
or
fitness for a particular purpose. Further
hereof
without obligation of Paradyne Corporation to notify any person of such revision or changes.
A November 1996 3910-A2-GN32-30
, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents
. No part of this publication may
venue North, P
be copied or distributed, transmitted, transcribed, stored in a retrieval system,
.O. Box 2826, Largo, Florida 33779-2826.
merchantability
Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or
included in the manual.
2. This product is intended to be used with a three-wire grounding type plug – a plug
which has a grounding pin. This is a safety feature. Equipment grounding is vital to
ensure safe operation. Do not defeat the purpose of the grounding type plug by
modifying the plug or using an adaptor.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for
the presence of earth ground. If the receptacle is not properly grounded, the
installation must not continue until a qualified electrician has corrected the problem.
If a three-wire grounding type power source is not available, consult a qualified
electrician to determine another method of grounding the equipment.
3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable
operation of the product and to protect it from overheating, these slots and openings
must not be blocked or covered.
4. Do not allow anything to rest on the power cord and do not locate the product where
persons will walk on the power cord.
Safety Instructions
5. Do not attempt to service this product yourself, as opening or removing covers may
expose you to dangerous high voltage points or other risks. Refer all servicing to
qualified service personnel.
6. General purpose cables are provided with this product. Special cables, which may be
required by the regulatory inspection authority for the installation site, are the
responsibility of the customer.
7. When installed in the final configuration, the product must comply with the applicable
Safety Standards and regulatory requirements of the country in which it is installed. If
necessary, consult with the appropriate regulatory agencies and inspection
authorities to ensure compliance.
8. A rare phenomenon can create a voltage potential between the earth grounds of two
or more buildings. If products installed in separate buildings are interconnected, the
voltage potential may cause a hazardous condition. Consult a qualified electrical
consultant to determine whether or not this phenomenon exists and, if necessary,
implement corrective action prior to interconnecting the products.
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.
B3910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Notices
C November 1996 3910-A2-GN32-30
Table of Contents
Preface
Objectives
How to Use this Manual
Related Documents
Ordering Information viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
and Reader Assumptions
1. Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multipoint Applications
Leased Backup Applications
COMSPHERE 391x Series Models
Government Requirements and Equipment Return 1-5. . . . . . . . . . . . . .
echnical Specifications
T
2. Modem Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
391x Series Modem Package
Model 3910 Modem Installation
DTE Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 4-Wire/2-Wire Leased-Line Connection 2-4. . . . . . . . . . . .
Dial Network Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 Dial Backup Connection
Model 3910 Leased Backup Connection
Network Management System Connection
Power Supply Connection 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Power-Up 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Factory Configuration Options 2-6. . . . . . . . . . . . . . . . . . . . .
Removing and Replacing Model 3910 Modems
Model 391
Removing and Replacing Model 391
1 Modem Installation
1 Modems
vii. . . . . . . . . . . . . . . . . . . . . . . . .
vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. . . . . . . . . . . . . . . . . . . . . . . . . .
1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4. . . . . . . . . . . . . . . . . . . . . . . .
2-4. . . . . . . . . . . . . . . . . . . . . .
2-5. . . . . . . . . . . . . . . . . . . .
2-9. . . . . . . . . . . . . . . .
2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-12. . . . . . . . . . . . . . . .
i3910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
3. DCP Operation
4. DCP Configuration
Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Control Panels
Status Indicators 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Control Panel Operation 3-6. . . . . . . . . . . . . . . . . . . . . . . . .
Menu Structure 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Branch
Configure Branch 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Poll List Branch 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Branch 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
est Branch
T
Sub-Network Health and Status Branch 3-53. . . . . . . . . . . . . . . . . . . . . .
Call Setup Branch
alk/Data Branch
T
Security Branch 3-64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Branch
3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Branch 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Tables 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. AT Command Set and S-Registers
Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Modes
Command Guidelines
AT Command List 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S-Register List 5-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Dial Access Security
Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Branch 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Configuration Options 6-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Password Entry Techniques 6-16. . . . . . . . . . . . . . . . . . . . . . . . .
Database T
able Examples
5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii November 1996 3910-A2-GN32-30
Appendices
Glossary
Index
Table of Contents
A. Menu Tree A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Troubleshooting B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Assignments
C.
D. CCITT V
E. ASCII Character Table E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. Default Configuration Options F-1. . . . . . . . . . . . . . . . . . . . . . . . .
G. Sample Configuration G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H. Equipment List H-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.25bis Dialing Commands and Response
C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-1. . . . . . . . . .
iii3910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Figure Page
1-1 Model 3910 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
2-1 Model 3910 Rear Panel and Power Supply 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2
2-3 Circuit Pack Lock 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3-2 Optional SDCP
3-3
3-4 Local Analog Loopback 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 Remote Digital Loopback 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Local Digital Loopback 3-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7 Pattern Test and Local Analog Loopback Test 3-51. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8 Pattern Test and Digital Loopback Test 3-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9 End-to-End Pattern Test 3-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-10
4-1 DCP Configuration Process 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 AT Command Configuration Process 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-1 VF Pin Orientation C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-2 Wiring Diagram — “Y” Cable for External Telephone C-4. . . . . . . . . . . . . . . . . . . . . .
C-3 Wiring Diagram — 8-Position to 6-Position Crossover Cable C-5. . . . . . . . . . . . . . . .
C-4 Wiring Diagram — 25-Pin Crossover Cable C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-1 Sample Configuration — Point-to-Point G-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-2 Sample Configuration — Multipoint G-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-3 Sample Configuration — Point-to-Point with Automatic Dial Backup G-4. . . . . . . . .
G-4 Sample Configuration — Point-to-Point with Network Management G-5. . . . . . . . . .
G-5 Sample Configuration — Carrier with Network Management G-6. . . . . . . . . . . . . . . .
G-6 Sample Configuration — Extended Multipoint G-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-7 Sample Configuration — Extended Diagnostics G-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures
Model 391
Installing a Model 391
Model 3910 DCP
391x Series LCD and Keypad
Dial Backup
1 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Modem
, Model 391
1 Faceplate, and Optional SDU 3-4. . . . . . . . . . . . . . . . . .
2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv November 1996 3910-A2-GN32-30
Table of Contents
List of Tables
Table Page
1-1
Model 3910 and Model 391
3-1
3-1 SDCP LEDs 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Top-Level Menu Status 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Operational Messages
3-4
Dial Access Security Messages
3-5
Health and Status Messages
3-6
Backup Status Screens
3-7
3-8 Valid Ranges for VF Thresholds 3-45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9 Valid Dial Command Modifiers 3-61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 DTE Interface Configuration Options 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 DTE Dialer Configuration Options 4-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Line Dialer Configuration Options 4-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Dial Line Configuration Options 4-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Leased Line Configuration Options 4-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6 V.42/MNP/Buffer Configuration Options 4-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7 Test Configuration Options 4-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Miscellaneous Configuration Options
4-8
Result Codes
5-1
5-2 391x Series A
391x Series S-Registers
5-3
6-1 Edit Password Table Group Options 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Set Answer Security Group Options 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3 Set Originate Security Group Options 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 Security Configuration Options 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5 Security Database T
6-6 Security Database Table Using DTE-Side Passwords 6-18. . . . . . . . . . . . . . . . . . . . . . . .
6-7 Security Database Table Using Both VF-Side and DTE-Side Passwords 6-19. . . . . . . . .
Modem Health
B-1
B-2 Leased-Line Operation B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dial Backup Operation
B-3
B-4 Modem — DTE Connection B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem — VF Connection
B-5
B-6 Online Operation B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-1 EIA-232-D Pin Assignments C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VF Connector Pin Assignments
C-2
D-1 V
.25bis Commands
1 DCP LEDs 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T Commands
able Using VF-Side Passwords
. . . . . . . . . . . . . . . . . . . . . . . . .
3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-18. . . . . . . . . . . . . . . . . . . . . . . . .
B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v3910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Table Page
D-2 V
.25bis Response Messages
E-1 ASCII Characters E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-1 Factory Default Configuration Options F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi November 1996 3910-A2-GN32-30
Preface
Objectives and Reader Assumptions
This
manual describes how to install and operate the COMSPHEREr 391x Series standalone and
carrier
-mounted modems. This manual assumes that you have a basic understanding of modems
and their operation.
How to Use this Manual
Chapter 1 provides technical specifications, information about the 391x Series modems’ features,
and the government requirements for using these modems.
Chapter 2 provides instructions for installing the 391x Series modems.
Chapter 3 provides the information required to operate the Model 3910 using the diagnostic
control panel and the Model 3911 using the COMSPHERE 3000 Series Carrier’
control panel (SDCP).
Chapter 4 provides the information required to set configuration options in the 391x Series
modems using the modem’
s diagnostic control panel.
s shared diagnostic
Chapter 5 provides instructions for displaying and changing A
Chapter 6 provides instructions for using the Dial Access Security feature.
Appendix A provides a menu tree for the 391x Series modems.
Appendix B provides instructions for performing diagnostic tests when data communication
problems occur.
Appendix C provides EIA-232-D and VF TELCO pin assignments.
Appendix D provides V.25bis dialing information.
Appendix E provides an ASCII translation chart.
Appendix F provides a list of all default configuration options available for the factory preset
configurations.
Appendix G provides diagrams of sample configurations for the 391x Series modems.
Appendix H provides an equipment list for the 391x Series modems.
The Glossary provides a description of terms used throughout this manual.
T commands and S-Registers.
vii3910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Related Documents
3000-A2-GA31
3610-A2-GZ45
3910-A2-GK41 COMSPHERE 3900 Series Modems, Models 3910 and 3911,
Call your sales representative to order additional product documentation.
COMSPHERE 3000 Series Carrier
3600 Hubbing Device Featur
Instructions
Installation Instructions
e Number 3600-F3-300, Installation
, Installation Manual
viii November 1996 3910-A2-GN32-30
Overview
Introduction
Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multipoint Applications 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leased Backup Applications 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 391x Series Models 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standalone Model 3910 4-Wire/2-Wire Modem 1-3. . . . . . . . . . . . . . . . . . . .
Carrier-Mounted Model 3911 4-Wire/2-Wire Modem 1-4. . . . . . . . . . . . . . .
Government Requirements and Equipment Return 1-5. . . . . . . . . . . . . . . . . . . .
United States 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canada 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The COMSPHERE 391x Series modems, a new generation of full-feature, high-speed modems,
offer reliable asynchronous and synchronous operation over leased-line or dial networks. The 391x
Series modems’ unique software defineability allows for the addition of future enhancements,
whether it is installing new features or firmware upgrades.
1
Features
The modem’
AT commands, CCITT V
permits the 391x Series modem to be used in a variety of applications and environments while also
allowing control over modem configuration, dialing, and diagnostics. The 391x Series modems
offer preset factory configurations containing the most often used modem settings.
The 391x Series modems have a wide variety of features.
• Four-wire/two-wire point-to-point or four-wire multipoint operation.
• Four-wire/two-wire leased-line modulations: V.32 terbo (19200 and 16800 bps), V.32bis
• Dial-line modulations: V.32 terbo (19200 and 16800 bps), V.32bis (14400, 12000, 9600,
•
s compatibility with a number of dialing methods and protocols, such as asynchronous
.25bis dialing, and the user
(14400, 12000, 9600, 7200, and 4800 bps), V.32 (9600 and 4800 bps), Paradyne
Point-to-Point Diagnostic (1200, 2400 bps), Trellis Multipoint (19200, 14400, 9600, 7200,
4800, and 2400 bps), V.22bis (2400 bps), V.27bis (4800 and 2400 bps), V.33 (14400 and
12000 bps), and V.29 (9600, 7200, and 4800 bps).
7200, and 4800 bps), V.32 (9600 and 4800 bps), Paradyne Point-to-Point Diagnostic (1200,
2400 bps), V.22bis (2400 bps), V.22 (1200 bps), V.23 (1200 and 600 bps), V.21
(300 bps), Bell 212A (1200 bps), and Bell 103J (300 bps).
Channel adaptive T
forward error correction for Trellis multipoint and high-speed point-to-point applications.
rellis-Coded Modulation, Paradyne’
-friendly diagnostic control panel (DCP),
s advanced T
rellis-Coded transparent
1-13910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
• Mixed inbound rates for multipoint applications.
• Convenient migration to new or optional features through software downloading.
•
• Network management system (NMS) support through the COMSPHERE 6800 or
•
Extended data circuits with diagnostics.
6700 Series NMS using Advanced Diagnostic protocol (ADp).
Complement of self-tests, local and remote loopbacks.
• CCITT V
• Virtual error free data integrity with CCITT V.42 and MNP Level 4 error control.
Dial access security
•
• Automatic and manual backup with standby capabilities for 4-wire/2-wire leased-line
applications. (The backup facility may be either a 2-wire dial line or a 2-wire leased line.)
.42bis and MNP Class 5 data compression.
.
Multipoint Applications
In multipoint applications, leased-line circuits are used for time sharing the same front-end
processor (FEP) port with multiple remote locations. The FEP (via the control modem) regulates
traffic on the line by continuously polling the tributary DTE(s) in a predefined sequence. Only one
tributary can communicate with the control modem at a given time. Modems configured for Trellis
Multipoint (TMp) cannot be used in a point-to-point, constant carrier application. (Refer to the
Leased Line
section in Chapter 4 for configuration options.)
Leased Backup Applications
In
leased backup applications, a 2-wire leased line is used as the backup facility instead of the
normal 2-wire dial line. Plug the leased line into the jack labeled DIAL on the rear panel of the
modem (see Figure 2-1 in Chapter 2), and enable the Dual_Leased_Ln configuration option. (Refer
Leased Line
to the
indication, and call progression functions, you control the backup function as if it were a normal
dial backup.
section in Chapter 4 for configuration options.) Except for dialing, ring
COMSPHERE 391x Series Models
The 391x Series family is available in two models: the Model 3910, a 4-wire/2-wire standalone
modem, and the Model 391
variety of modulation schemes and network enhancements while still providing reliable,
high-speed data transmission using the latest in modem technology
1-2 November 1996 3910-A2-GN32-30
1, a carrier-mounted version of the standalone unit. Both models offer a
.
Standalone Model 3910 4-Wire/2-Wire Modem
3
The standalone Model 3910 modem (Figure 1-1) is capable of either 4-wire/2-wire leased-line or
dial operation. The modem is controlled using either AT commands or the diagnostic control panel
(DCP). The DCP consists of a liquid crystal display (LCD), three function keys, four directional
keys, and a row of 13 LED status indicators. For a better understanding of DCP operation, refer to
Chapter 3,
DIAGNOSTIC
CONTROL
DCP Operation
PANEL
.
LCD AND
KEYPAD
Introduction
SPEAKER
STATUS
INDICAT ORS
POWER
CORD
DTE 1
DIAL
LEASED
POWER
SUPPLY
POWER
ON/OFF
POWER IN
NMS
496-14160-0
Figure 1-1. Model 3910
The rear of the modem contains an ON/OFF power switch, a low voltage dc power connector
8-pin modular connector (LEASED) for leased-line connection, an 8-pin modular connector
(DIAL) for dial-line or leased-line backup, a 4-pin modular connector (NMS) for network
management, and a DB-25-S DTE connector.
, an
Carrier-Mounted Model 3911 4-Wire/2-Wire Modem
The carrier-mounted Model 3911 modem (Figure 1-2) is capable of either 4-wire/2-wire
leased-line or dial operation and installs into a COMSPHERE 3000 Series Carrier. The
1-33910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Status
142
125
103
104
105
106
107
108
109
Model 391
speaker jack for the carrier’
1’s faceplate has 16 LED status indicators for displaying modem activity and an audio
s optional speaker
.
The Model 3911 modem’s rear has two 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 providing
an EIA-232-D DTE interface and one for future functionality.
FACEPLATE
Pwr
Alrm
Test
Dial
RI
Busy
Serv
SQ
TXD
RXD
RTS
CTS
DSR
DTR
LSD
EIA232/V.24
EDGE CARD
CONNECTOR
FUTURE
USE
BACK
CONNECTOR
PLATE
EIA232/V.24
EIA232/V.24
CONNECTOR
GROUNDING
TAB
Front Panel
Spkr
3911
FUTURE
USE
496-14178b
(3800)
RS366A/V.25
(3600/3500)
V.35
Figure 1-2. Model 3911
The
Model 391
is a common bus to all devices installed in the carrier
1 derives ac power from the COMSPHERE 3000 Series Carrier’
. The user interface to any Model 391
s backplane, which
through the shared diagnostic control panel (SDCP), an optional feature which operates in a
1 is
1-4 November 1996 3910-A2-GN32-30
manner similar to the DCP on the Model 3910. For a better understanding of DCP operation, refer
to Chapter 3,
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 Model 391
modems, or a combination of Model 3911 modems and other units. For more details on the
COMSPHERE 3000 Series Carrier, refer to the
Manual.
DCP Operation
.
COMSPHERE 3000 Series Carrier
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
Introduction
1
, Installation
NOTICE T
O 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 3910
modem. This label is located on the Model 3911’s circuit card assembly
information must be provided to the telephone company.
Page A of this manual contains the Universal Service Order Codes (USOC) associated with
2.
the services on which the equipment is to be connected.
3. An FCC compliant telephone cord and modular plug is provided with this equipment. This
equipment is designed to be connected to the telephone network or premises wiring using a
compatible modular jack which is Part 68 compliant. See Installation Instructions for
details.
4. 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.
5. If the 391x Series 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
.
. If requested, this
6. 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.
1-53910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
7. If you experience trouble with this equipment, please contact your sales or service
8. The user is not authorized to repair or modify the equipment.
9. This equipment cannot be used on public coin service provided by the telephone company.
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:
ia T
• V
elephone: Call our automated call system to receive current information via fax or
isit the Paradyne World W
ide W
eb site at http://www
.paradyne.com
V
to speak with a company representative.
— Within the U.S.A., call 1-800-870-2221
— International, call 813-530-2340
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.
Connection to Party Line Service is subject to state tariffs. (Contact the state public utility
commission, public service commission or corporation commission for information.)
1-6 November 1996 3910-A2-GN32-30
Canada
Introduction
NOTICE T
O THE 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
acceptable method of connection. In some cases, the company’
. The equipment must also be installed using an
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 is labeled on the equipment. 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 earlier in this chapter.
1-73910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Technical Specifications
Table 1-1
Specifications
APPROVALS
FCC Part 15
FCC Part 68 Registration Number: (See label on modem)
shows the technical specifications for the 391x Series modems.
Table 1-1
(1 of 3)
Technical Specifications for 391x Series Modems
Description
Class A
UL
Model 3910 Listed to UL 1950
COMSPHERE 3000 Series Carrier Recognized to UL 1950
CSA
Model 3910 Certified to CSA C22.2 No. 950-M89
COMSPHERE 3000 Series Carrier Certified as a component to CSA C22.2 No. 950-M89
DOC
Model 3910 Certification Number: (See label on modem)
Model 3911 Certification Number: (See label on modem)
COMPATIBILITY Leased-Line Modulations:
Paradyne V.32 terbo (19200, 16800 bps)
CCITT V.32bis (14400, 12000, 9600, 7200, 4800 bps)
CCITT V.32 (9600, 4800 bps)
Paradyne Trellis Multipoint (19200, 14400, 9600, 7200, 4800,
2400 bps)
CCITT V.22bis (2400 bps)
CCITT V.27bis (4800, 2400 bps)
CCITT V.33 (14400, 12000 bps)
CCITT V.29 (9600, 7200, 4800 bps)
Paradyne Point-to-Point Diagnostic (1200, 2400 bps)
Dial-Line Modulations:
Paradyne V.32 terbo (19200, 16800 bps)
CCITT V.32bis (14400, 12000, 9600, 7200, 4800 bps)
CCITT V.32 (9600, 4800 bps)
CCITT V.22bis (2400 bps)
CCITT V.22 (1200 bps)
CCITT V.23 (1200, 600 bps)
CCITT V.21 (300 bps)
Bell 212A (1200 bps)
Bell 103J (300 bps)
Paradyne Point-to-Point Diagnostic (1200, 2400 bps)
1-8 November 1996 3910-A2-GN32-30
Table 1-1
(2 of 3)
Technical Specifications for 391x Series Modems
Specifications Description
ENVIRONMENT
Operating Temperature
32°F (0°C) to 122°F (50°C)
Relative Humidity 5% to 90% (noncondensing)
Shock and Vibration Withstands normal shipping
Storage Temperature
–4°F (–20°C) to 158°F (70°C)
DTE INTERFACE
25-pin D-subminiature connector EIA-232-D/CCITT V.24
MODEL 3910 POWER SUPPL
Y
100 to 250 Vac, 50 to 60 Hz
AC POWER REQUIREMENTS
POWER CONSUMPTION
Model 3910 6 watts (typical, including power supply, speaker off)
Model 3911 4 watts (typical, each card) (Speaker consumption is
approximately 1 watt at high volume.)
DIMENSIONS
Weight 2.5 pounds (1.14 kg) Model 3910 (without power supply)
1.0 pounds (0.45 kg) Model 3911
Height 2.1 inches (5.4 cm) Model 3910
7.1 inches (18.1 cm) Model 3911
Width 7.6 inches (19.4 cm) Model 3910
0.9 inches (2.3 cm) Model 3911
Depth 12.1 inches (30.8 cm) Model 3910
13.4 inches (34.0 cm) Model 3911
TRANSMIT LEVEL
Leased Line (North America) 0 through –15 dBm (in 1 dBm decrements)
Factory default is 0 dBm
Leased Line (All Other Countries) 0 through –15 dBm (in 1 dBm decrements)
Factory default is country dependent
Dial Line (North America) –10 through –32 dBm (in 1 dBm decrements)
Factory default is Permissive (–9 dBm)
Dial Line (All Other Countries) Level setting is not accessible to the user
Factory default is country dependent
TELEPHONE INTERFACE
Leased-Line Connectivity JM8 (Model 3910)
50-pin mass termination (Model 3911)
Dial-Line Connectivity RJ11C Permissive
RJ21X Permissive 50-pin connector (Model 3911)
Introduction
1-93910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Table 1-1
(3 of 3)
Technical Specifications for 391x Series Modems
Specifications Description
DAT
A RA
TES
Leased Line 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400 1200 bps
Dial Line 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200,
600, 300 bps
ERROR CONTROL CCITT V.42
MNP 4-2
DAT
A COMPRESSION
CCITT V.42bis
MNP Class 5
1-10 November 1996 3910-A2-GN32-30
Overview
Modem Installation
Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
391x Series Modem Package 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer-Supplied Equipment 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 Modem Installation 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Cables to the Model 3910 Modems 2-3. . . . . . . . . . . . . . . . . . . .
DTE Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 4-Wire/2-Wire Leased-Line Connection 2-4. . . . . . . . . . . . . . . . . .
Dial Network Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 Dial Backup Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 3910 Leased Backup Connection 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Management System Connection 2-5. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Connection 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modem Power-Up 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Factory Configuration Options 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Diagnostic Control Panel (DCP) 2-6. . . . . . . . . . . . . . . . . . . . . . . .
Using AT Commands 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing Model 3910 Modems 2-9. . . . . . . . . . . . . . . . . . . . . .
Model 3911 Modem Installation 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing Model 3911 Modems 2-12. . . . . . . . . . . . . . . . . . . . . .
2
This
chapter provides a list of equipment supplied with the modem as well as a list of customer
supplied equipment. In addition, it describes how to install and remove the 391x Series modem,
and how to select a factory preset configuration using either the DCP or ATt
391x Series Modem Package
After opening the modem’s package, check for damage and verify that the following items are
present:
For the standalone model
• Installation instructions
Model 3910 modem
•
• Power supply
• One 6-position, 4-wire modular cord
• One 8-position, 8-wire modular cord
command set.
2-13910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
For the carrier-mounted model
• Installation instructions
Model 391
•
• Rear connector plate with two DB-25-S edge card connectors
If any hardware components are damaged, notify your service representative. Return equipment
using the procedures described in the
Chapter 1.
Customer-Supplied Equipment
The following customer
using the Model 3910 modem:
• A DTE with an available EIA-232-D serial port.
• A standard EIA-232-D cable with a DB-25-P (plug) connector at one end to attach to the
modem.
• One of the following modular leased or dial network interfaces:
JM8 for leased-line applications.
—
— RJ1
The following customer-supplied equipment is required for the installation of a Model 3911
modem:
• A COMSPHERE 3000 Series Carrier.
1C for dial permissive applications.
1 modem
Government Requir
-supplied equipment is required to complete a data communications system
ements and Equipment Return section of
• A 50-pin mass termination cable.
• One of the following modular or 50-pin leased or dial network interfaces:
— RJ1
—
— 66 punchdown block.
• 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).
For installation of the COMSPHERE 3000 Series Carrier into a cabinet, refer to the COMSPHERE
3000 Series Carrier
1C for single line dial permissive applications.
RJ21X for multiple line dial permissive applications.
, Installation Manual.
Model 3910 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 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.
2-2 November 1996 3910-A2-GN32-30
The rear panel of the Model 3910 modem (Figure 2-1) has the following switches and connectors:
• An ON/OFF power switch.
• An 8-pin DIN type power receptacle (PWR) for the dc power supply.
• An 8-pin modular keyed jack (LEASED) for 4-wire/2-wire leased lines.
• An 8-pin modular keyed jack (DIAL) for backup lines (2-wire dial or 2-wire leased).
• A 4-pin modular jack for the (NMS) network management system connection.
• A 25-pin DB-25-S receptacle for the DTE interface.
Connecting Cables to the Model 3910 Modems
Modem Installation
Figure 2-1
shows how Model 3910 modems are connected to certain TELCO jack types using the
appropriate cables. For pin assignments, refer to Appendix C.
DTE
8-POSITION,
8-CONDUCTOR
PLUG FOR
LEASED-LINE
NETWORK
OPERATION
6-POSITION,
4-CONDUCTOR
PLUG FOR
PERMISSIVE
DIAL NETWORK
OPERATION
NOTE:
THE DIAL JACK IS ALSO USED
FOR 2-WIRE LEASED BACKUP.
2
CONNECTOR
FOR DATA
TERMINAL
EQUIPMENT
OPERATION
DTE 3 DTE 4
DTE 1LEASED DIAL NMS PWR ON OFF
DB-25-P
SUB-MINIATURE,
4-CONDUCTOR
PLUG FOR
NETWORK
MANAGEMENT
OPERATION
POWER
SUPPLY
Figure 2-1. Model 3910 Rear Panel and Power Supply
2-33910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
DTE Connection
Use the following procedures to connect the EIA-232-D cable from the modem to the DTE:
1.
Make sure the modem’
2. Connect the DB-25-P (plug) connector on the cable to the DB-25-S (socket) connector
labeled DTE (Figure 2-1) on the modem’
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 secure the cable to the DTE.
s rear panel power switch is OFF
s rear panel. Use a small screwdriver to secure the
.
Model 3910 4-Wire/2-Wire Leased-Line Connection
Use the following procedures to connect a Model 3910 to the leased-line network interface:
1. Insert the 8-position, 8-conductor modular plug into the jack labeled LEASED
(Figure 2-1).
2. Insert the other end of the modular cord into the leased-line network interface.
Dial Network Connection
The telephone company provides the line termination jacks for the permissive service you request.
Advance coordination with the telephone company is suggested when connecting the modem to
telephone dial lines (PSTN).
In the Permissive mode, the modem’s transmit output level is fixed at –9 dBm. The telephone
company assumes that the line loss is 3 dB and no compensation is provided for additional losses.
A Permissive mode telephone line is usually terminated with a USOC RJ1
Model 3910 Dial Backup Connection
For the Model 3910, use the following procedures to connect the modem to the dial backup
network interface:
1. Insert the 6-position, 4-conductor modular plug into the jack labeled DIAL (Figure 2-1).
2. Insert the other end of the modular cord into the dial network interface.
Model 3910 Leased Backup Connection
For the Model 3910, use the following procedures to connect the modem to the 2-wire leased
backup network interface:
1. Insert the 8-position, 8 conductor modular plug into the jack labeled DIAL (Figure 2-1).
1C jack.
2. Insert the other end of the modular cord into the leased-line network interface.
2-4 November 1996 3910-A2-GN32-30
Network Management System Connection
For the Model 3910, use the following procedures to connect the modem to the network
management system interface:
1. Insert the sub-miniature, 4-conductor modular plug of the 3600 Hubbing Device into the
jack labeled NMS (Figure 2-1). Refer to Document Number, 3610-A2-GZ45,
3600 Hubbing Device Featur
description of the 3600 Hubbing Device. Installation for the 3910 is the same as for the
3610 DSU.
2. Connect the 3600 Hubbing Device to the network management channel (Figure G-4 in
Appendix G).
e Number 3600-F3-300, Installation Instructions, for a
Power Supply Connection
Use the following procedures to connect the modem to an ac power outlet:
1.
Make sure the modem’
s power switch is in the OFF position.
Modem Installation
2. Insert the power supply’s 8-pin DIN connector into the modem’s rear panel dc power
receptacle (Figure 2-1).
3. Connect the power supply to a grounded ac power outlet.
Modem Power-Up
Once your modem is properly connected to the power supply
DTE, press the modem’s rear panel power switch to the ON position. The modem begins a
power-up self-test, in which all DCP LEDs light. This test takes several seconds to perform, and
verifies the operation of most hardware components within the modem. If successful, the LCD
displays
If a failure occurs during the self-test, the LCD displays Power On Selftst Failed for several
seconds. The LCD then displays the T
appearing on the top line of the LCD. Although a failure has occurred, the modem will attempt to
operate. This allows you to activate a more thorough self-test using the Test branch. Refer to the
est
section in Chapter 3.
T
, leased and/or dial lines, and the
Power on Selftst Passed and continues to the Top-Level menu screen.
Power On Selftst
Passed
F1
F2
F3
op-Level menu screen with the message
Power on Fail
2-53910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
Selecting Factory Configuration Options
After
the modem passes the power
factory preset configurations.
The 391x Series modems have six factory preset templates that contain the most commonly used
configuration options (straps) for Synchronous Leased (Answer or Originate), Asynchronous
Leased (Answer or Originate), Trellis Multipoint (Control or Tributary), Asynchronous Dial,
Synchronous Dial, and UNIX Dial hardware network configurations. Your modem ships from the
factory with the Synchronous Leased (Answer) default configuration options stored in memory. If
Synchronous Leased (Originate), Asynchronous Leased (Answer or Originate), Trellis Multipoint
(TMp) (Control or Tributary), Async Dial, Sync Dial, or UNIX Dial is more appropriate for your
configuration, then you must change the factory setting using either the modem’
command set as described in the following sections.
The purpose of having preset configurations is so that you can have a “head start” in getting your
modem operating and reducing the amount of time required to configure your modem. For a better
understanding of DCP operation and factory preset configuration options, refer to Chapter 4, DCP
Configuration.
-up self-test, configure it for operation using one of the six
s DCP or the A
T
Using the Diagnostic Control Panel (DCP)
The DCP’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
Top-Level menu tree (Appendix A).
To change a factory template from the Sync Leased preset configuration using the DCP, perform
the following steps:
1. Press the function key below Configure to select the Configure branch.
The LCD now displays
Press the
2.
factory preset configurations.
Factory preset configurations are
Async Dial
must choose either
Control or Trib (Tributary) mode.
Press the
3.
press the corresponding function key to select your choice. (For certain factory templates
you will also need to choose the appropriate mode.)
Choose Function appears and displays the Edit and Save functions.
4.
5. 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.
key until Factory
, Sync Dial
Answer or Originate
key until the appropriate factory preset template appears on the LCD, and
Ld EditAr
, and
UNIX Dial
ea frm.
comes into view
Sync Leased, Async Leased, TMp
. If Sync Leased or Async Leased is selected, you
, then press the F1 key to display the
(Trellis Multipoint),
mode. If TMp is selected, you must choose either
(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
2-6 November 1996 3910-A2-GN32-30
Sav EditArea to.
Modem Installation
6. 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.
Refer to Chapter 4,
configuration options.
Using AT Commands
When
If the modem does not return OK, refer to Appendix B, Troubleshooting.
7. The modem is now configured with the selected factory template. Press the
key to
return to the Top-Level menu.
using A
DCP Configuration,
T commands, the following criteria must be met:
for more information regarding default factory
• 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 cable is attached to the DTE connector on the rear of the 391x Series
modem and to the correct serial communications port on the asynchronous DTE.
• Configure the modem for
Using the DCP
. To verify that the modem is connected and functioning properly, enter the
Async Dial, Async Leased,
or
UNIX Dial
as described earlier in
following:
TYPE: AT
PRESS: Return (Enter)
The screen displays
OK.
NOTE
If the factory preset configuration is something other than Async
Dial, Async Leased, or UNIX Dial, you do not have AT command
control. To regain AT command control, select, via the DCP, the
Async Dial factory preset configuration as described earlier in
the DCP
.
Using
2-73910-A2-GN32-30 November 1996
COMSPHERE 3900 Series Modems
To change a factory template using AT commands, perform the following steps. For more
information on changing factory templates using AT commands, refer to Chapter 5, A
Set and S-Registers
T Command
.
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 Async Leased (Answer)
6 for Async Leased (Originate)
7 for TMp (Control)
8 for TMp (Trib)
NOTE
Only &F0, &F3, &F5, and &F6 allow you to use AT commands after
saving a factory configuration. Any other selection removes AT
command control. The only way to return to AT command control is
through the DCP as described earlier in
Using the DCP
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.
To establish a connection with a remote modem, use the D (Dial) command. Refer to Chapter 5,
T Commands and S-Registers
A
, for more on AT commands.
2-8 November 1996 3910-A2-GN32-30
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