Point-to-Point, Configuration Options, Cables | Digicom 3911, 3910

COMSPHERE 3900 Series Modems

Point-to-Point

Figure G-1 shows a sample configuration for point-to-point applications.

DTE

19200(V32t)

TX

3910 A

19200(V32t)

	TX
	Leased	DTE
	3910 B	DTE
	3910 B

(Sync)

(Sync)

Cable 1

Cable 2

Cable 2

Cable 1

Figure G-1. Sample Configuration — Point-to-Point

Configuration Options

3910 A Use Sync Leased (Answer) default configuration options.

3910 B Use Sync Leased (Originate) default configuration options.

Cables

Cable 1 Use a standard, customer-supplied, EIA-232-D/V.24 cable with a DB-25-P (plug) connector at one end to attach to the modem. Attach this to the connector labeled DTE1.

Cable 2 Use part number 125-0053-1431 (an 8-position, 8-wire modular cord that is supplied with the modem). Attach this to the connector labeled LEASED.

G-2

September 1998

3910-A2-GN32-40

Image 256

Digicom 3911, 3910 operation manual Point-to-Point, Configuration Options, Cables

Contents

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 ManualObjectives and Reader Assumptions Related Documents Introduction FeaturesOverview Multipoint Applications Leased Backup ApplicationsComsphere 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 DescriptionModel Certification Number See label on modem Leased-Line Modulations Technical Specifications for 391x Series Modems Specifications DescriptionPin D-subminiature connector EIA-232-D/ITU-T 100 to 250 Vac, 50 to 60 Hz ITU-T MNPITU-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 ConnectionModel 3910 Leased Backup Connection DTE Connection Power Supply Connection Modem Power-UpPower 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 PwrAlrm Diag Diagnostic Control Panel Operation LCD Display Keypad Key Menu Structure Top-Level Menu Status and Operational Messages Call Setup Dial Backup orLeased Backup Top-Level Menu Status Status Message Indicates Call Failure AT Command ResetStatus Message Indicates Call Disconnect Firmware Dial Access Security Messages Dial Access Security Indicates MessageCommon Operational Messages Common Indicates Operational Message Leased19.2 Status Configure Quick Configuration DisplayLeased19.2 abbb cdd ee ffff Comsphere 3900 Series Modems Status Branch DTE Status DeviceHS VF Device Health and Status DeviceHSDevice HS Major Minor Health and Status Messages Type Message Indicates MajorMinor Status Type Message Indicates Dial ThreshSecurity Port SigQual RcvLevelSig/Noise NrEchLvl Identity Status Identity DTE BackupLSD DTR DSR Tst Backup StatusBackup Line=Pri 4w APLStatusBackup Bkup2wAPL=Good Status Backup Status Screens Options RecordOptions 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 OptionLdEditAreafrm Factory Ld Fact Preset SyncLeased Choose Mode Answer OriginateChoose Function EditSave Edit StrapGroup DTEInterface StrapsWhenDisc Nxt NoChange RemAccssPasswrd Nxt Choose Function Edit Save SummarySav 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 EnablePrimary 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 DisplayPoll List Display Clear Clear function does not appear in Remote mode ClearChange Change function does not appear in Remote Poll ListChang Active Delete Poll Listyyyyyy Ent Add Acquire function does not appear in Remote modeAcquire Poll ListAcquir Abort xxx yyy Poll ListAcquir Num Acquired yyy Control Branch Control Speaker Reset SpeakerLeased19.2 Control Test Speaker Control Off Low Med Reset Data Stream function is not available in Async modeData Stream Port1 Disable Data Stream Data Stream Port1 Enable Eialed Command CompleteEIA LEDs Control EIALEDs Make Busy/Remove Make Busy Make Busy Command CompleteControl MakeBusy Control ServiceLine Service Line/Disconnect Service LineControl RemoveMakeBusy Download Software Selecting Clone RemoteControl DownloadCode DwnLoadSoftware CloneRemote Clone Remote in Point-to-Point Configurations Clone Remote in Broadcast ConfigurationsCloning DC Broadcast Remote Choose DLL Type SCClone Clone Remote in Multipoint Configurations Viewing DC Broadcast Clone ResultsChoose DLL Type DCCloneResults DC Clone Results Nxt xxx Pass Choose Password Ent yyyyyyyy Cloning a Single TMp RemoteChoose DLL Type Single Multiple Choose Address Ent Cloning a Multiple TMp Remote Viewing Multiple TMp Clone ResultsChoose DLL Type MPtCloneResults MPtCloneResults Nxt xxx Pass Incompat Modulat Implementing a Clone Remote OperationNo Response VF Thresholds Update Access DisabledPassword 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 CompleteTest Abort Self Self Test LocAnalogLoop Loc Analog LoopTestLocal Loop Started Rem Digital Loop Test RemDigitalLoop Loc Digital Loop TestRemote Loop Started Test LocDigitalLoop PatternTestDigitl 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 DisconnectDial DialDirectory Nxt Disconnect Disconnect Command CompleteDialDirectory01 Off Hook Answer Command Complete Call Setup AnswerAnswer Call Setup ReturntoDial Call Setup Dial StandbyDial Standby/Return to Dial Call Setup ChangeDirectory Dial Standby Command CompleteChange Directory 02 z Nxt 01 551234 z Nxt019W5556789z Nxt Valid Dial Command Modifiers Directory Status Does Not Appear in North America Call Setup DirectoryStatusNumber Status Nxt 01Allowed 10-10 Talk/Data Branch11 Talk/Data function is not available in TMp Control modeModel 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? EntSet 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 ResetSecurityReset Security AbortSecReset Reset Security EraseAllPasswd Security Configuration Options Security Configuration OptionsEntryWaitTime 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-Registers14Operating Modes Command Guidelines Result Codes Result CodesNumbers Word Description AT Command List AT Command FormatDelayed number Result Codes Numbers Word Description Command 391x Series AT Commands DescriptionATD9W5551234 14-6 Sn=r Dial Tone DetectBusy 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/BufferRegister 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 ActionTable B-1 Modem Health Dial Backup Operation Table B-2Leased-Line Operation Table B-3 Table B-4 Modem DTE Connection Verify that the DTE is providing DTR to the modem Modem VF ConnectionIf 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 SourceTable C-1 EIA-232-D Pin Assignments Name VF Connector Pin Assignments Table C-2 VF Connector Pin Assignments Type of Telco JackLeased 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 ResponsesCall Request with Number Provided CRN Call Connecting CNX Call ResponseCall Request with Stored Memory Address Provided CRS Call Failure Indication CFI Call Answer Commands Delayed Call IndicatorIncoming Call INC Disregard Incoming Call DIC Request List of Delayed Numbers RLD Program Normal PRNRequest List of Forbidden Numbers RLF Request List of Stored Numbers RLN List Delayed Numbers Response LSD Command ResponseList Forbidden Numbers Response LSF List Stored Numbers Response LSN Call Answer Commands Program CommandInvalid INV List Request Call Connecting Indication Command ResponseValid Command Call Failure Indication This page intentionally left blank Table E-1 Ascii Characters Hexadecimal Decimal Control Key Ascii Character Table ECharacter 025 026027 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 OptionsCables 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 Adapter871A Equipment Feature Part Number Equipment List H This page intentionally left blank Glossary Command mode Configuration areaConfiguration option Connector Mode Control Channel Data modeDiagnostic Channel Dial backup Error control IndicatorDownload Downstream device Interface KbpsKeypad Leased line Originate mode Phase jitterPower-up self-test Quick Configuration Return to Dial RJ11RJ21 Secondary channel 22bis 25bis27bis 32bis Index DTE MNP RTS VF Thresholds Update Comsphere 3900 Series Modems Index-6