Document No -A2-GN32-41
Warranty, Sales, and Service Information
Trademarks
Important Safety Instructions
3910-A2-GN32-40
Table of Contents
Status Branch
Remote Branch
Glossary Index
List of Figures
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List of Tables
Viii
Objectives and Reader Assumptions
How to Use this Manual
Preface
Related Documents
Overview
Features
Introduction
Comsphere 391x Series Models
Leased Backup Applications
Multipoint Applications
Standalone Model 3910 4-Wire/2-Wire Modem
Model
Carrier-Mounted Model 3911 4-Wire/2-Wire Modem
Government Requirements and Equipment Return
United States
Comsphere 3900 Series Modems
Canada
Model Certification Number See label on modem
Technical Specifications
Technical Specifications for 391x Series Modems Description
Leased-Line Modulations
Pin D-subminiature connector EIA-232-D/ITU-T
Technical Specifications for 391x Series Modems
Specifications Description
100 to 250 Vac, 50 to 60 Hz
ITU-T V.42bis
ITU-T
MNP
MNP Class
Modem Installation
391x Series Modem Package
Model 3910 Modem Installation
Customer-Supplied Equipment
Connecting Cables to the Model 3910 Modems
Model 3910 Rear Panel and Power Supply
Model 3910 Leased Backup Connection
Model 3910 4-Wire/2-Wire Leased-Line Connection
Model 3910 Dial Backup Connection
DTE Connection
Power On Selftst Passed
Power Supply Connection
Modem Power-Up
Network Management System Connection
Selecting Factory Configuration Options
Using the Diagnostic Control Panel DCP
Using AT Commands
Type AT
Type AT&Fy&Wn
Model 3911 Modem Installation
Removing and Replacing Model 3910 Modems
Installing a Model 3911 Modem
Circuit Pack Lock
Removing and Replacing Model 3911 Modems
Diagnostic Control Panels
DCP Operation
Model 3910 Diagnostic Control Panel
Model 3910 DCP
Status Indicators
Optional SDCP, Model 3911 Faceplate, and Optional SDU
Alrm
Model 3910 and Model 3911 DCP LEDs
Label Color Indicates Pwr
Diag
Diagnostic Control Panel Operation
LCD Display
Keypad
Key
Menu Structure
Top-Level Menu Status and Operational Messages
Leased Backup
Call Setup
Dial Backup or
Top-Level Menu Status
Status Message Indicates Call Failure
Status Message Indicates Call Disconnect
AT Command
Reset
Firmware
Common Operational Messages
Dial Access Security Messages
Dial Access Security Indicates Message
Common Indicates Operational Message
Leased19.2 abbb cdd ee ffff
Quick Configuration Display
Leased19.2 Status Configure
Comsphere 3900 Series Modems
Status Branch
DTE
Device HS Major Minor
Device Health and Status DeviceHS
Status DeviceHS VF
Minor
Health and Status Messages
Type Message Indicates Major
Status
Security
Type Message Indicates Dial
Thresh
Port
Sig/Noise
SigQual
RcvLevel
NrEchLvl
Identity
LSD DTR DSR Tst
Backup
Status Identity DTE
StatusBackup Bkup2wAPL=Good
Backup
StatusBackup Line=Pri 4w APL
Status
Backup Status Screens
Options
Options
Record
OptionsStatus 29V.33
Record Status Display Clear
Record Number Modem O.K
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DCP Configuration
DCP Configuration Process
AT Command Configuration Process
Configure Branch
Choose Function
LdEditAreafrm Factory
Editing and Saving a Configuration Option
LdEditAreafrm ActivOperating
Choose Function EditSave
Ld Fact Preset SyncLeased
Choose Mode Answer Originate
Edit StrapGroup DTEInterface
StrapsWhenDisc Nxt NoChange
RemAccssPasswrd Nxt
Sav EditArea to ActiveSaved
Summary
Choose Function Edit Save
Configuration Tables
DTE Interface
DTE Interface Configuration Options
Asyn Parity Bit None Nxt None Even Odd Mark Space
DTE Interface Configuration Options
DTE Interface Configuration Options
DTE Interface Configuration Options
DTE Interface Configuration Options
DTE Interface Configuration Options
TX Clock Source Internal Nxt Internal External RXCLoop
Fallback2 Not available for TMp tributaries
Primary data can only be extended one link
Extend Main Ch. Disable Nxt Disable Enable
DTE Dialer
DTE Dialer Configuration Options
AT Escape Char 043 Asci Nxt 043 Asci
CarriageRtn Char 013 Asci Nxt 013 Asci
AT Commands and S-Registers
AT Cmnd Mode Normal Nxt Normal NoERROR NoStrapOrERR
Line Dialer Configuration Options
Line Dialer
Blind Dial Pause 2sec Nxt 2sec 4sec 6sec 8sec 10sec 20sec
Line Dialer Configuration Options
Line Dialer Configuration Options
Line Dialer Configuration Options
Dial Line Configuration Options
Dial Line
V32bis Automode Enable Nxt Enable Disable System
V22b Guard Tone Disable Nxt Disable 550Hz 1800Hz
Leased Line Configuration Options
Leased Line
Leased Line Configuration Options
V32bis Autorate Enable Nxt Enable Disable
Leased Line Configuration Options
V27bis Train Short Nxt Short Long
42/MNP/Buffer
42/MNP/Buffer Configuration Options
42/MNP/Buffer Configuration Options
EC Negotiat Bfr Disable Nxt Disable Enable Disab&Switch
Flw Cntl of DTE CTStoDTE Nxt CTStoDTE Disable XON/XOFF
XON/XOFF
XON/XOFF Psthru Disable Nxt Disable Enable
Break Buffr Ctl KeepData Nxt KeepData DiscardData
BuffrDiscDelay 10sec Nxt 10sec Disable 60sec
Test Configuration Options
Test
Test Configuration Options
Miscellaneous Configuration Options
Misc
Miscellaneous Configuration Options
Miscellaneous Configuration Options
Diag Connection ModemDC Nxt ModemDC Nmscc Disable
Security
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Poll List Branch
Poll List Display Clear
Display
Leased19.2 PList Control
Change
Clear function does not appear in Remote mode
Clear
Change function does not appear in Remote
Poll ListChang Active Delete
Poll Listyyyyyy Ent
Acquire
Acquire function does not appear in Remote mode
Add
Poll ListAcquir Abort xxx yyy
Poll ListAcquir Num Acquired yyy
Control Branch
Leased19.2 Control Test
Control Speaker Reset
Speaker
Speaker Control Off Low Med
Data Stream Port1 Disable
Reset
Data Stream function is not available in Async mode
Data Stream
EIA LEDs
Data Stream Port1 Enable
Eialed Command Complete
Control EIALEDs
Control MakeBusy
Make Busy Command Complete
Make Busy/Remove Make Busy
Control RemoveMakeBusy
Service Line/Disconnect Service Line
Control ServiceLine
Control DownloadCode
Download Software
Selecting Clone Remote
DwnLoadSoftware CloneRemote
Cloning DC Broadcast Remote
Clone Remote in Point-to-Point Configurations
Clone Remote in Broadcast Configurations
Choose DLL Type SCClone
Choose DLL Type DCCloneResults
Clone Remote in Multipoint Configurations
Viewing DC Broadcast Clone Results
DC Clone Results Nxt xxx Pass
Choose DLL Type Single Multiple
Choose Password Ent yyyyyyyy
Cloning a Single TMp Remote
Choose Address Ent
Choose DLL Type MPtCloneResults
Cloning a Multiple TMp Remote
Viewing Multiple TMp Clone Results
MPtCloneResults Nxt xxx Pass
No Response
Implementing a Clone Remote Operation
Incompat Modulat
Password Invalid
VF Thresholds Update
Access Disabled
No Circuit
VF Thresholds Edit Save Reset
RSL High dBm Nxt
If you want to modify additional VF thresholds, select Nxt
Save VF Thresh Thd Out of Range
Valid Ranges for VF Thresholds Default Values
Test Branch
Test Abort Self
TestAbort Command Complete
Abort
Self
TestLocal Loop Started
Loc Analog Loop
Test LocAnalogLoop
Rem Digital Loop
Test RemDigitalLoop
Loc Digital Loop
TestRemote Loop Started
TestDigitl Loop Started
Pattern
Test LocDigitalLoop
Test Pattern
TestPattern BlksErrd=xxxxxxx
Test Branch
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Sub-Network Health Status Branch
Leased19.2 TestSubHS
Press the key until SubHS appears. Select SubHS
Call Setup Branch10
Call Setup function is not available in TMp Control mode
Dial
Leased19.2 CallSetup
Call Setup Dial Disconnect
DialDirectory Nxt
DialDirectory01 Off Hook
Disconnect Command Complete
Disconnect
Answer
Call Setup Answer
Answer Command Complete
Dial Standby/Return to Dial
Call Setup Dial Standby
Call Setup ReturntoDial
Change Directory
Dial Standby Command Complete
Call Setup ChangeDirectory
019W5556789z Nxt
01 551234 z Nxt
02 z Nxt
Valid Dial Command Modifiers
Number Status Nxt 01Allowed
Call Setup DirectoryStatus
Directory Status Does Not Appear in North America
10-10
Model 3911 modems
Talk/Data function is not available in TMp Control mode
Talk/Data Branch11
Online19.2 CallSetup
Idle19.2 Tlk/Data
Talk/Data Branch
11-4
Dial Access Security12
Originate Access Security
Answer Access Security
DTE-Side Passwords
Security Branch
Leased19.2 Security Remote
Set Access Ctrl EditPassWdTable
Set Access Ctrl
Admin Password? Ent
Security SetAcessCtrl
EditPasswdTable
Select Index Ent
Edit Password Table Group Options
12-8
Set Access Ctrl SetAnswerSec
Set Answer Security Group Options
Set Access Ctrl SetOrigSec
Set Originate Security Group Options
Set Access Ctrl SetAdminPsWd
Set Admin PsWd Ent
Reset Security AbortSecReset
Reset Security
Security ResetSecurity
Reset Security EraseAllPasswd
EntryWaitTime 20 sec Nxt 20 sec 10 sec 40 sec 60 sec
Security Configuration Options
Security Configuration Options
12-14
12-15
Security Password Entry Techniques
Answer Access Password VF-Side and DTE-Side Entry Techniques
Originate Access Password
Database Table Examples
Assigned to column is not stored in the modem
12-19
12-20
Dial Access Security
12-22
Remote Branch13
To access the Remote branch, make the following selections
Trellis Multipoint tributary modems
Select Channel Secondary Prim Data blckd
Online14.4 Control ExitRem
Diagnostic Control Panel Access
Frnt Panl Acces GrantDeny
13-6
Operating Modes
AT Command Set and S-Registers14
Switching Between Data Mode and Online Command Mode
Command Guidelines
Numbers Word Description
Result Codes
Result Codes
Delayed number
AT Command List
AT Command Format
Result Codes Numbers Word Description
ATD9W5551234
391x Series AT Commands Description
Command
14-6
Sn=r
Busy Tone
Dial Tone
Detect
Only displays OK, CONNECT, RING, no Carrier
14-9
14-10
Bert
\A3
\C0
\N5
\D0
\G0
Register List
42bis Compression Configure\Edit\
Disable V42/MNP/Buffer
\X0
Register Format
391x Series S-Registers Description
14-16
14-17
14-18
14-19
14-20
= Ascii = Ebcdic
14-22
14-23
14-24
14-25
14-26
14-27
14-28
Menu Tree a
DTE
Eialeds
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Table B-1
Troubleshooting B
Symptom Action
Modem Health
Leased-Line Operation
Dial Backup Operation
Table B-2
Table B-3
Table B-4
Modem DTE Connection
If the DTE does not provide DTR to the modem, verify that
Modem VF Connection
Verify that the DTE is providing DTR to the modem
Branch
Table B-6
Pin Assignments C
Table C-1 EIA-232-D Pin Assignments Name
Signal Circuit Function Source
EIA-232-D Pin Assignments
Leased Dial RJ11
VF Connector Pin Assignments
Table C-2 VF Connector Pin Assignments Type of Telco Jack
Pin
Figure C-2. Wiring Diagram Y Cable for External Telephone
Auxiliary Cables Not Supplied
Position Plug PIN no
Figure C-4. Wiring Diagram 25-Pin Crossover Cable
Call Request with Number Provided CRN
ITU-T V.25bis Dialing Commands D and Responses
Call Request Commands
Call Request with Stored Memory Address Provided CRS
Call Connecting CNX
Call Response
Call Failure Indication CFI
Incoming Call INC
Call Answer Commands
Delayed Call Indicator
Disregard Incoming Call DIC
Request List of Forbidden Numbers RLF
Request List of Delayed Numbers RLD
Program Normal PRN
Request List of Stored Numbers RLN
List Forbidden Numbers Response LSF
List Delayed Numbers Response LSD
Command Response
List Stored Numbers Response LSN
Invalid INV
Call Answer Commands
Program Command
List Request
Valid Command
Call Connecting Indication
Command Response
Call Failure Indication
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Character
Ascii Character Table E
Table E-1 Ascii Characters Hexadecimal Decimal Control Key
027
025
026
028
Ascii Character Table
Table E-1 Ascii Characters Hexadecimal Decimal Control Key
Default Configuration Options F
Table F-1 Factory Default Configuration Options
DTE Interface
DTE Dialer
Line Dialer
Leased Line
Default
Straps When Disconnected
Entry Wait Time VF Prompt Type
Sample Configurations G
Cables
Configuration Options
Point-to-Point
Figure G-2. Sample Configuration Multipoint
Multipoint
Point-to-Point with Automatic Dial Backup
Auto Dial Back Set to Enable
Point-to-Point with Network Management
Carrier with Network Management
Figure G-6. Sample Configuration Extended Multipoint
Extended Multipoint
Rate at 19.2K Set ports 1, 2, 3, and 4 to
Extended Diagnostics
871A
Adapter
3910 E,G
Equipment Feature Part Number
Equipment List H
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Glossary
Configuration option
Command mode
Configuration area
Connector
Diagnostic Channel
Mode Control Channel
Data mode
Dial backup
Download
Error control
Indicator
Downstream device
Keypad
Interface
Kbps
Leased line
Power-up self-test
Originate mode
Phase jitter
Quick Configuration
RJ21
Return to Dial
RJ11
Secondary channel
27bis
22bis
25bis
32bis
Index
DTE
MNP
RTS
VF Thresholds Update
Comsphere 3900 Series Modems Index-6