Introduction | Multi-Tech Systems BL-Series specs

MultiModemBL User Guide

8.1Introduction

Each time you power up the MultiModem, it performs an automatic self- test to ensure proper operation. The modem also has four diagnostic test features: Local Analog Loopback, Digital Loopback (remote/automatic), Digital Loopback (local/manual) and a modem Back-to-Back test.

A loopback test involves entering data from your PC and looping that data through the circuits of your modem and/or a remote modem. When the loop has been completed, the original data entered should match the data received back on your PCs monitor after the test.

The Local Analog Loopback Test allows you to verify that the modem’s transmitter and receiver circuits are functioning properly.

The Digital Loopback Test (local/manual) allows you to verify that the remote computer or terminal, the remote modem, serial ports, the telephone line and the local modem are functioning properly.

The Digital Loopback Test (remote/automatic) allows you to verify that the local computer or terminal, the two modems and the transmission line between them are functioning properly.

The Back-to-Back test lets you connect two MultiModems with a back-to-back cable to verify proper modem operation.

In asynchronous mode, upon completion of testing, enter either Escape Sequence, +++AT<CR> or <BREAK>AT<CR>.

Note: All loopback tests will operate at all speeds except 300 bps. Disable error correction

(&E0&W0<CR>) before engaging in loopback tests (self-test and back-to-back test not affected).

98

Image 98

Multi-Tech Systems BL-Series manual Introduction

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 1932 Series Features Modem Features1 2834 Series Features 3 1432 Series Features Fax Features Technical Specifications Command Buffer Mode of OperationIntelligent Features Introduction and Description Carrier Frequencies Fax Carrier FrequenciesLease Line Restoral Carrier Frequencies 300 bps Bell Standard Indicators ConnectorsDiagnostics Operating Temperature Models Only PowerModem LED Indicators Controls on PC Board MultiModemBL User Guide Installation and Connection What is in Your Modem Package? Unpacking MT2834BL shown Installation Procedure InstallationSafety Warnings MultiModemBL/BLI Connections Cabling Procedure MT1432BLK and MT2834BLK MultiModemBLK Connections Loading Trio DataFAX Software Installation and Connection Is Your Modem Ready for Use? 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 Other Parameters Changing Default ParametersPC Initialization Strings 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 Simple Operations Answer/Originate Voice/Data Toggle SwitchModem Basics MultiModemBL User Guide Manual Dial and Automatic Answer Dialing/On-Line/Answering Automatic Leased Line Restoral Operation Manual Dial Backup Call TerminationDial Backup and Leased Line Restoral Manual Dial and Automatic Answer Dial-Up Operation Manual Call Origination Automatic Answering Manual Answering Call Termination Abort TimerHandshaking Details 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 MultiModemBL User Guide Standard AT Result Codes Series Continuous Redial not used in BLI/BLK 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 Not used in BLK 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 Modem Reset Z Configuration and Default Storage CommandsLoading Factory Defaults &F Synchronous Transmit Clock Select &X Async/Sync Mode Switching &MUnix Uucp Spoofing $SP 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 BLI or BLK Models &G Phone Line Conditioning CommandsEnable/Disable Trelis Coded Modulation #T Bell/V.21 Tone Not Used in BLK Models B Cleardown at Disconnect &CD 2834 Series only Fallback Modes When On-Line #FEnable/Disable Lowspeed Fast Connect $FC 2834 Series only Auto Speed Detect #A Data Terminal Ready Control &D 7 RS-232C Interface Control CommandsCarrier Detect Control &C CTS Control &R DSR/CD Interaction Control &SF Data Set Ready Control &SCTS/RTS Interaction Control &RF Auto-Reliable Mode &E1 Error Correction CommandsNormal Mode &E0 Reliable Mode &E2 Answer Mode Mode Select #LOriginate Mode Auto-Reliable Buffering $A Retransmit Count $R Enable/Disable Auto Reliable Fallback Character $FError Correction/300bps $E Xon/Xoff Flow Control &E5 Flow Control CommandsHardware Flow Control &E4 Modem-Initiated Flow Control Hewlett-Packard ENQ/ACK Pacing &E9 Xon/Xoff Pass-Through &E7Send Xon/Xoff Characters #X Maximum Block Size &BS Normal Mode Modem Flow Control On &E11Terminal/Computer Initiated Pacing &E13 Parity Selection #P Enq/Ack Pacing Commands Normal/Auto-Reliable/Reliable Mode CommandsXon/Xoff Pass-Through Commands Modem Baud Rate $MB Speed Conversion CommandsSpeed Conversion $BA Command Mode Series Serial Port Baud Rate $SB Immediate Action Commands Listing On-Line Diagnostics L8 Off Hook H Exiting Command Mode, Going Back On-Line O Line Probe Commands 2834 Series onlyForce Answer Mode a MultiModemBL 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 S16 Callback Attempts S15 Callback Time DelayS19 Dial-Back Timer S17 Changing Break Time S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S26 Failed Password AttemptsS29 Local Inactivity Timer S25 DTR Dropout Time S36 Time Between DTR Inactive and Modem Off-Hook S30 Inactivity TimerS32 Time Elapse for Escape Sequence S37 Time Between DTR Active and Modem On-Hook S48 Program V.34bis Connect Speeds 2834 Series only Examples of Reading Values Reading and Assigning S-Register ValuesExamples of Assigning Values AT Command and S-Register Summary Callback Security and Remote Configuration Callback Feature Description To change your Remote Configuration feature status Remote Configuration DescriptionCallback Security and Remote Configuration AT#CBN1xxxxxxxxxxCR To set parity of the password/message promptAT#CBN0xxxxxxxxxxCR 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 MultiModemBL 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 MultiModemBL User Guide 106 DIP-Switch Settings PC Board BL models 108 109 DIP-Switch Option SettingsDIP-Switch Settings 110 Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-UP1432 Series 111 112 113 114 Speaker Volume ControlMultiModemBL User Guide Series 115 Recording Option ConfigurationsSwitch Function Position Effect 116 DIP Switches #13-14DIP Switches #15-16 Warranty, Service and Tech Support 118 Limited WarrantyOn-line Warranty Registration Tech Support ServiceWarranty, Service and Tech Support Recording Modem Information To Download a file Multi-Tech BBSTo log on to the Multi-Tech BBS Upgrading the MultiModem Using FlashPro to Upgrade Modem FirmwareAbout the Multi-Tech Fax-Back Service About Multi-Tech’s Internet Presence 122 About Ordering AccessoriesSupplyNet Online Ordering Instructions 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 127 128 Am Losing DataAm Getting Garbage Characters on the Monitor 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 $FCn $EBn#Fn $Fn #Ln $HnL10 $MBn RFn NdNe$Rn Sr=n $SPn $SBnSFn #Tn 137 #Xn+++ATCR Callback Security/Remote Configuration Command Summary Password Command Summary 25bis Commands 140 Appendix E DIP-Switch SummaryAsynchronous Mode 141 Synchronous ModeAppendix E DIP-Switch Summary 142 Appendix F S-Register Summary S26 S24S25 S29 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 148 25bis DIP-Switches25bis Set-Up and Initialization 149 25bis Mode AT Commands25bis Responses Result Codes 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 MultiModemBL Cables Figure I-1. RS232 Cable IBM PC Appendix J RS-232C Interface Specifications Figure I-4. 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 159 Terminal Busy Out of Service Pin 25, OOSExternal Transmit Clock Pin 24, XTC 160 European Directives User Guide Statement EMC, Safety and Terminal Directive ComplianceCompliance with European Community Requirements Appendix K Regulatory Information 162 International Modem RestrictionsNew Zealand Telecom Warning Notice FCC Regulations for Telephone Line Interconnection 163 FCC Part Canadian Limitations NoticeClass a Statement Industry Canada Index 165 Functional Description of RS232C SIG 166 167 168 XON/XOFF