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Multitech MT2834BAI, MT1432BA manual Appendix I MultiModemBA Cables, Figure I-1. RS232 Cable IBM PC

Models: MT2834BAI MT1432BA MT2834BA

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MultiModemBA User Guide

Appendix I - MultiModemBA Cables

These cables connect your modem to your terminal or computer’s serial port.

25-PIN DTE	25-PIN DCE
Connector	Device

TD 2 RD 3 RTS 4 CTS 5 DSR 6 GND 7 CD 8 DTR20 RI 22

2 TD

3 RD

4 RTS

5 CTS

6 DSR

7 GND

8 CD 20 DTR

22 RI

Figure I-1. RS232 Cable (IBM PC)

1

2

3

4

5

6

RED (Tip)

GREEN (Ring)

	To Terminal
RJ-11 Type	Block Screws
Modular Plug	(Transmit and Receive)

Figure I-3. Two Wire Leased Line Connection

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Image 154

Multitech MT2834BAI, MT1432BA manual Appendix I MultiModemBA Cables, Figure I-1. RS232 Cable IBM PC

Contents

User Guide User Guide Record of Revisions Contents Manual Dial and Automatic Answer Command ModeCallback Security and Remote Configuration Registers Warranty, Service and Tech Support Modem TestingDIP-Switch Settings AppendixesPage Introduction and Description How To Use This Manual Introduction Testing Your Modem AT Command Mode OperationCallback and Remote Configuration DIP-Switches 2 1432 Series Features Modem Features1 2834 Series Features 3 932 Series Features Fax Features Technical Specifications Command Buffer Mode of OperationIntelligent Features Introduction and Description Carrier Frequencies 300 bps Bell Standard Fax Carrier FrequenciesCarrier Frequencies Transmit Level Indicators ConnectorsDiagnostics Operating Temperature Modem LED Indicators PowerModels Only Controls on PC Board MultiModemBA User Guide Installation and Connection What is in Your Modem Package? Unpacking MT2834BA shown Safety Warnings InstallationInstallation Procedure MultiModemBA/BAI Connections Loading Trio DataFAX Software MultiModemBA User Guide Is Your Modem Ready for Use? MultiModemBA User Guide Software Configuration and Modem Basics Serial Port Limitations How Can You Identify Your Uart Type? Software Configuration Configuring Your SoftwareConfiguring Software for Your Modem 16550 Uart and Windows PC Initialization Strings Changing Default ParametersOther Parameters Macintosh Initialization Configuring Software for Your ComputerConfiguring Software for the Remote System Terminal Emulation File Transfer Protocols When to Disable Data CompressionDisabling Error Correction AT &F S0=0 X4 &E14 M Modem Basics Answer/Originate Voice/Data Toggle SwitchSimple Operations MultiModemBA User Guide Manual Dial and Automatic Answer Dialing/On-Line/Answering Automatic Answering Manual Call OriginationManual Dial and Automatic Answer Manual Answering Handshaking Details Abort Timer Call Termination MultiModemBA User Guide Command Mode AT Command Editing Command Mode Functional Modes Summary of AT Commands Reliable Mode Normal ModeAuto-Reliable Mode Flow Control Disabled Passwords for Callback Phone Numbers Enable/Disable Reading Line Probe From DSP during handshakeDisplay of Signal Strength Information Callback Security Enable/Disable Result Codes Multi-Tech Result Codes Series MultiModemBA User Guide Standard AT Result Codes Series Continuous Redial not used in BAI a or Dialing Commands Dialing Action CommandsDial Command D Dialing a Stored Number N Pulse or Tone Dial P T Dial Modifier CommandsVoice/Data Dialing $VD Set Pulse Dial Ratios &P Automatic Pauses in Dialing Return to Command Mode After Dial Command ExecutionReverse the Mode of Operation R Long Space Disconnect Y Calling Card Detect Tones $ Quiet Answer @ Number Linking NN Phone Number Memory CommandsStoring Phone Numbers D...N Listing Numbers Stored in Memory L Loading Factory Defaults &F Configuration and Default Storage CommandsModem Reset Z Unix Uucp Spoofing $SP Async/Sync Mode Switching &MSynchronous Transmit Clock Select &X Result Codes Enable/Disable and No Response Answer Q Command Response Result Code CommandsEcho Command Mode Characters E Result Codes Multi-Tech or Standard AT &Q Result Codes Basic and Extended and Call Progress Selection Guard Tones Not Used in BAI Models &G Phone Line Conditioning CommandsEnable/Disable Trelis Coded Modulation #T Bell/V.21 Tone Enable/Disable Lowspeed Fast Connect $FC 2834 Series only Fallback Modes When On-Line #FCleardown at Disconnect &CD 2834 Series only Auto Speed Detect #A Data Terminal Ready Control &D 7 RS-232C Interface Control CommandsCarrier Detect Control &C CTS Control &R CTS/RTS Interaction Control &RF Data Set Ready Control &SDSR/CD Interaction Control &SF Auto-Reliable Mode &E1 Error Correction CommandsNormal Mode &E0 Reliable Mode &E2 Answer Mode Mode Select #LOriginate Mode Auto-Reliable Buffering $A Error Correction/300bps $E Enable/Disable Auto Reliable Fallback Character $FRetransmit Count $R Hardware Flow Control &E4 Flow Control CommandsXon/Xoff Flow Control &E5 Send Xon/Xoff Characters #X Xon/Xoff Pass-Through &E7Hewlett-Packard ENQ/ACK Pacing &E9 Maximum Block Size &BS Normal Mode Modem Flow Control On &E11Terminal/Computer Initiated Pacing &E13 Parity Selection #P Xon/Xoff Pass-Through Commands Normal/Auto-Reliable/Reliable Mode CommandsEnq/Ack Pacing Commands Speed Conversion $BA Speed Conversion CommandsModem Baud Rate $MB Command Mode Series Serial Port Baud Rate $SB Immediate Action Commands Listing On-Line Diagnostics L8 Off Hook H Force Answer Mode a Line Probe Commands 2834 Series onlyExiting Command Mode, Going Back On-Line O MultiModemBA User Guide Registers Escape Code Character Number of Rings Until Modem AnswersRings Which Have Occurred Return Character Backspace Character Time for Carrier Abort TimerLine Feed Character Wait Time for Dial Tone Carrier Detect Response Time S10 Carrier Loss Disconnect Delay TimeS13 Remote Configuration Escape Character S11 Tone Dialing Tone Spacing and Duration S17 Changing Break Time S15 Callback Time DelayS16 Callback Attempts S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S30 Inactivity Timer S26 Failed Password AttemptsS29 Local Inactivity Timer S32 Time Elapse for Escape Sequence S37 Time Between DTR Active and Modem On-Hook S36 Time Between DTR Inactive and Modem Off-HookS48 Program V.34bis Connect Speeds 2834 Series only Examples of Assigning Values Reading and Assigning S-Register ValuesExamples of Reading Values AT Command and S-Register Summary MultiModemBA User Guide Callback Security and Remote Configuration Callback Feature Description Callback Security and Remote Configuration Remote Configuration DescriptionTo change your Remote Configuration feature status AT#CBN0xxxxxxxxxxCR To set parity of the password/message promptAT#CBN1xxxxxxxxxxCR Callback Operational Sequence Procedures Remote Configuration Procedures Remote Configuration Operation Procedures StepProcedure Callback Security Enable/Disable Remote Configuration and Callback Security AT CommandsAssign Passwords for Callback Phone Numbers #CBN Change Login Password Erase Callback Password Erase Callback Phone Number #RDNxx Remote Configuration/Callback Security S-Registers MultiModemBA User Guide Modem Testing Introduction Modem Testing Local Analog Loopback Test/V.54 Loop Digital Loopback Test/V.54 Loop 2 Local/Manual 100 Digital Loopback Test/V.54 Loop 2 Remote/Automatic 101 Back-to-Back Test 4A. Back-to-Back Test Cabling Synchronous Mode Testing Local Analog Loopback Test Synchronous Mode Digital Loopback Test Local/Manual Synchronous Mode Synchronous Mode Digital Loopback Test local/manual 104 Digital Loopback Test Remote/Automatic Synchronous Mode Synchronous Mode Digital Loopback Test remote/automatic 105 MultiModemBA User Guide 106 DIP-Switch Settings PC Board 108 DIP-Switch Settings DIP-Switch Option Settings109 932 Series Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-UP110 111 112 113 MultiModemBA User Guide Series Switch #16 Reserved for Future Use114 Switch Function Position Effect Speaker Volume ControlRecording Option Configurations 115 DIP Switches #15-16 DIP Switches #13-14116 Warranty, Service and Tech Support On-line Warranty Registration Limited Warranty118 Tech Support ServiceWarranty, Service and Tech Support Recording Modem Information To log on to the Multi-Tech BBS Multi-Tech BBSTo Download a file Upgrading the MultiModem Using FlashPro to Upgrade Modem FirmwareAbout the Multi-Tech Fax-Back Service About Multi-Tech’s Internet Presence SupplyNet Online Ordering Instructions About Ordering Accessories122 Appendixes Modem Does Not Respond to Commands Appendix a TroubleshootingNone of the LEDs Light When the Modem Is On 124 Appendix a Troubleshooting 125 Modem Dials But Cannot Make a Connection 126 File Transfer Is Slower Than It Should Be Modem Cannot Connect When AnsweringModem Disconnects While On-line 127 Am Getting Garbage Characters on the Monitor Am Losing Data128 Appendix B Ascii Conversion Chart 129 Tone Dial Frequencies Appendix C Dial Pulse and Tone-Dial FrequenciesDial Pulses 130 $An Appendix D AT Command SummaryCommand Values Description #An CD n BS n$BA n SN d $Fn $EBn#Fn 133 $MBn $Hn#Ln 134 RFn NdNe$Rn Sr=n $SPn $SBnSFn #Tn #Xn $VDn137 Callback Security/Remote Configuration Command Summary +++ATCR Password Command Summary 25bis Commands Asynchronous Mode Appendix E DIP-Switch Summary140 Appendix E DIP-Switch Summary Synchronous Mode141 142 Appendix F S-Register Summary S32 S29S30 S34 Terse Digit Verbose Words Effect Appendix G Result Code SummaryAppendix G Result Code Summary 145 146 25bis Operation Delayed and Forbidden NumbersAppendix H V.25bis Operation Appendix H V.25bis Operation 25bis Set-Up and Initialization 25bis DIP-Switches148 25bis Responses Result Codes 25bis Mode AT Commands149 Change Serial Baud Rate CSP Command 25bis AT CommandsEnable/Disable V.25bis Mode $V Command Dial Phone Number Provided CRN Command Disregard or Connect to Incoming Calls DIC or CIC Command Listing Delayed Phone Numbers RLD CommandListing Forbidden Phone Number RLF Command DTR Dialing $D Command Switzerland ITU V.25bis Country Specific InformationItaly Austria Singapore Appendix H V.25bis Operation FranceBelgium 153 Appendix I MultiModemBA Cables Figure I-1. RS232 Cable IBM PC Appendix J RS-232C Interface Specifications Figure I-2. MAC Cable 155 Pin Designation Eia Appendix J RS-232C Interface SpecificationsSignal Function Assignment Circuit Source 156 Request To Send Pin 4, RTS CA Signal Ground Pin 7, SG ABReceived Data Pin 3, RD BB Clear To Send Pin 5, CTS CB Transmit Clock Pin 15, TC DB Ring Indicator Pin 22, RI CETest Voltage Pin 9 Receive Clock Pin 17, RC DD External Transmit Clock Pin 24, XTC Terminal Busy Out of Service Pin 25, OOS159 New Zealand Telecom Warning Notice EMC, Safety and Terminal Directive ComplianceInternational Modem Restrictions European Directives User Guide Statement Appendix K Regulatory Information FCC Regulations for Telephone Line Interconnection161 FCC Part Canadian Limitations NoticeClass a Statement Industry Canada Index 163 Functional Description of RS232C SIG 164 165 166