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
This page intentionally left blank
List of Tables
Viii
Preface
How to Use this Manual
Objectives and Reader Assumptions
Related Documents
Introduction
Features
Overview
Multipoint Applications
Leased Backup Applications
Comsphere 391x Series Models
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
Technical Specifications
Technical Specifications for 391x Series Modems Description
Model Certification Number See label on modem
Leased-Line Modulations
Technical Specifications for 391x Series Modems
Specifications Description
Pin D-subminiature connector EIA-232-D/ITU-T
100 to 250 Vac, 50 to 60 Hz
ITU-T
MNP
ITU-T V.42bis
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 4-Wire/2-Wire Leased-Line Connection
Model 3910 Dial Backup Connection
Model 3910 Leased Backup Connection
DTE Connection
Power Supply Connection
Modem Power-Up
Power On Selftst Passed
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
Model 3910 and Model 3911 DCP LEDs
Label Color Indicates Pwr
Alrm
Diag
Diagnostic Control Panel Operation
LCD Display
Keypad
Key
Menu Structure
Top-Level Menu Status and Operational Messages
Call Setup
Dial Backup or
Leased Backup
Top-Level Menu Status
Status Message Indicates Call Failure
AT Command
Reset
Status Message Indicates Call Disconnect
Firmware
Dial Access Security Messages
Dial Access Security Indicates Message
Common Operational Messages
Common Indicates Operational Message
Leased19.2 Status Configure
Quick Configuration Display
Leased19.2 abbb cdd ee ffff
Comsphere 3900 Series Modems
Status Branch
DTE
Status DeviceHS VF
Device Health and Status DeviceHS
Device HS Major Minor
Health and Status Messages
Type Message Indicates Major
Minor
Status
Type Message Indicates Dial
Thresh
Security
Port
SigQual
RcvLevel
Sig/Noise
NrEchLvl
Identity
Status Identity DTE
Backup
LSD DTR DSR Tst
Backup
StatusBackup Line=Pri 4w APL
StatusBackup Bkup2wAPL=Good
Status
Backup Status Screens
Options
Record
Options
OptionsStatus 29V.33
Record Status Display Clear
Record Number Modem O.K
This page intentionally left blank
DCP Configuration
DCP Configuration Process
AT Command Configuration Process
Configure Branch
Choose Function
LdEditAreafrm ActivOperating
Editing and Saving a Configuration Option
LdEditAreafrm Factory
Ld Fact Preset SyncLeased
Choose Mode Answer Originate
Choose Function EditSave
Edit StrapGroup DTEInterface
StrapsWhenDisc Nxt NoChange
RemAccssPasswrd Nxt
Choose Function Edit Save
Summary
Sav EditArea to ActiveSaved
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
DTE Dialer
Extend Main Ch. Disable Nxt Disable Enable
Primary data can only be extended one link
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
This page intentionally left blank
Poll List Branch
Leased19.2 PList Control
Display
Poll List Display Clear
Clear function does not appear in Remote mode
Clear
Change
Change function does not appear in Remote
Poll ListChang Active Delete
Poll Listyyyyyy Ent
Add
Acquire function does not appear in Remote mode
Acquire
Poll ListAcquir Abort xxx yyy
Poll ListAcquir Num Acquired yyy
Control Branch
Control Speaker Reset
Speaker
Leased19.2 Control Test
Speaker Control Off Low Med
Reset
Data Stream function is not available in Async mode
Data Stream Port1 Disable
Data Stream
Data Stream Port1 Enable
Eialed Command Complete
EIA LEDs
Control EIALEDs
Make Busy/Remove Make Busy
Make Busy Command Complete
Control MakeBusy
Control ServiceLine
Service Line/Disconnect Service Line
Control RemoveMakeBusy
Download Software
Selecting Clone Remote
Control DownloadCode
DwnLoadSoftware CloneRemote
Clone Remote in Point-to-Point Configurations
Clone Remote in Broadcast Configurations
Cloning DC Broadcast Remote
Choose DLL Type SCClone
Clone Remote in Multipoint Configurations
Viewing DC Broadcast Clone Results
Choose DLL Type DCCloneResults
DC Clone Results Nxt xxx Pass
Choose Password Ent yyyyyyyy
Cloning a Single TMp Remote
Choose DLL Type Single Multiple
Choose Address Ent
Cloning a Multiple TMp Remote
Viewing Multiple TMp Clone Results
Choose DLL Type MPtCloneResults
MPtCloneResults Nxt xxx Pass
Incompat Modulat
Implementing a Clone Remote Operation
No Response
VF Thresholds Update
Access Disabled
Password Invalid
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
Abort
TestAbort Command Complete
Test Abort Self
Self
Test LocAnalogLoop
Loc Analog Loop
TestLocal Loop Started
Rem Digital Loop
Test RemDigitalLoop
Loc Digital Loop
TestRemote Loop Started
Test LocDigitalLoop
Pattern
TestDigitl Loop Started
Test Pattern
TestPattern BlksErrd=xxxxxxx
Test Branch
This page intentionally left blank
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
Leased19.2 CallSetup
Call Setup Dial Disconnect
Dial
DialDirectory Nxt
Disconnect
Disconnect Command Complete
DialDirectory01 Off Hook
Answer Command Complete
Call Setup Answer
Answer
Call Setup ReturntoDial
Call Setup Dial Standby
Dial Standby/Return to Dial
Call Setup ChangeDirectory
Dial Standby Command Complete
Change Directory
02 z Nxt
01 551234 z Nxt
019W5556789z Nxt
Valid Dial Command Modifiers
Directory Status Does Not Appear in North America
Call Setup DirectoryStatus
Number Status Nxt 01Allowed
10-10
Talk/Data Branch11
Talk/Data function is not available in TMp Control mode
Model 3911 modems
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
Admin Password? Ent
Set Access Ctrl EditPassWdTable
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
Security ResetSecurity
Reset Security AbortSecReset
Reset Security EraseAllPasswd
Security Configuration Options
Security Configuration Options
EntryWaitTime 20 sec Nxt 20 sec 10 sec 40 sec 60 sec
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
Switching Between Data Mode and Online Command Mode
AT Command Set and S-Registers14
Operating Modes
Command Guidelines
Result Codes
Result Codes
Numbers Word Description
AT Command List
AT Command Format
Delayed number
Result Codes Numbers Word Description
Command
391x Series AT Commands Description
ATD9W5551234
14-6
Sn=r
Dial Tone
Detect
Busy Tone
Only displays OK, CONNECT, RING, no Carrier
14-9
14-10
Bert
\A3
\C0
\G0
\D0
\N5
42bis Compression Configure\Edit\
Disable V42/MNP/Buffer
Register List
\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
This page intentionally left blank
Troubleshooting B
Symptom Action
Table B-1
Modem Health
Dial Backup Operation
Table B-2
Leased-Line Operation
Table B-3
Table B-4
Modem DTE Connection
Verify that the DTE is providing DTR to the modem
Modem VF Connection
If the DTE does not provide DTR to the modem, verify that
Branch
Table B-6
Pin Assignments C
EIA-232-D Pin Assignments
Signal Circuit Function Source
Table C-1 EIA-232-D Pin Assignments Name
VF Connector Pin Assignments
Table C-2 VF Connector Pin Assignments Type of Telco Jack
Leased Dial RJ11
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 Commands
ITU-T V.25bis Dialing Commands D and Responses
Call Request with Number Provided CRN
Call Connecting CNX
Call Response
Call Request with Stored Memory Address Provided CRS
Call Failure Indication CFI
Call Answer Commands
Delayed Call Indicator
Incoming Call INC
Disregard Incoming Call DIC
Request List of Delayed Numbers RLD
Program Normal PRN
Request List of Forbidden Numbers RLF
Request List of Stored Numbers RLN
List Delayed Numbers Response LSD
Command Response
List Forbidden Numbers Response LSF
List Stored Numbers Response LSN
Call Answer Commands
Program Command
Invalid INV
List Request
Call Connecting Indication
Command Response
Valid Command
Call Failure Indication
This page intentionally left blank
Table E-1 Ascii Characters Hexadecimal Decimal Control Key
Ascii Character Table E
Character
025
026
027
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
Point-to-Point
Configuration Options
Cables
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
3910 E,G
Adapter
871A
Equipment Feature Part Number
Equipment List H
This page intentionally left blank
Glossary
Command mode
Configuration area
Configuration option
Connector
Mode Control Channel
Data mode
Diagnostic Channel
Dial backup
Error control
Indicator
Download
Downstream device
Interface
Kbps
Keypad
Leased line
Originate mode
Phase jitter
Power-up self-test
Quick Configuration
Return to Dial
RJ11
RJ21
Secondary channel
22bis
25bis
27bis
32bis
Index
DTE
MNP
RTS
VF Thresholds Update
Comsphere 3900 Series Modems Index-6