Controls on PC Board | Multi-Tech Systems MT2834BL, MT2834BA

Chapter 1 - Introduction and Description

1.8Controls on PC Board

The MultiModem is designed on a single printed circuit (PC) board. This board contains one 16- position DIP-Switch (numbered 1-16). The DIP-Switches are accessible through a cut-out on the side of the modem. There is also a knob which is used to adjust the speaker volume. This knob is accessible through the modem's rear panel. The sixteen DIP-Switches control various modem options or set default values for Command Mode operation. There is a difference in how several of the switches operate depending on whether you are in synchronous or asynchronous mode. Refer to the switch label on the bottom of the modem for an exact list of the switch functions in asynchronous and synchronous operation. Chapter 8 provides detailed instruction for configuring the modem’s PC board.

Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide

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Multi-Tech Systems MT2834BL, MT2834BA manual Controls on PC Board

Contents

User Guide User Guide Record of Revisions Date DescriptionPatents Trademarks Contents Registers Index 117 Introduction and Description How To Use This Manual Introduction Modem Features 1 MT2834BA/BL Series Features Fax Features Technical Specifications Power Modem LED Indicators MT2834BA LED Display Controls on PC Board Installation and Connection What Is in Your Modem Package? InstallationSafety Warnings Installation Procedure MultiModemBA Connections Installing PhoneTools, the Data Communications Software Is Your Modem Ready for Use? Software Configuration and Modem Basics Configuring Your Software Configuring Software for Your ModemSoftware Configuration PC Initialization Strings Changing Default Parameters Configuring Software for Your ComputerOther Parameters AT &F S0=0 &F9 &W0 CR Answer/Originate Voice/Data Toggle Switch Modem BasicsSimple Operations Manual Dial and Automatic Answer Dialing/On-Line/Answering Manual Dial and Automatic Answer Manual Dial Backup Call Termination Dial Backup and Leased Line RestoralAutomatic Leased Line Restoral Operation Dial-Up Operation Manual Call Origination Automatic Answering Manual Answering Abort Timer Handshaking DetailsCall Termination Command Mode AT Command Editing Command ModeFunctional Modes Summary of AT Commands Functional Modes Store Modem Configure Data Result Codes Multi-Tech Result CodesStandard AT Result Codes Dialing Commands Dialing Action Commands Dial Modifier Commands Voice/Data Dialing $VDPulse or Tone Dial P T Set Pulse Dial Ratios &P Return to Command Mode After Dial Command Execution Reverse the Mode of Operation RAutomatic Pauses in Dialing Long Space Disconnect Y Calling Card Detect Tones $ Quiet Answer @ Phone Number Memory Commands Storing Phone Numbers D...NNumber Linking NN Listing Numbers Stored in Memory L Configuration and Default Storage Commands Loading Factory Defaults &FModem Reset Z Async/Sync Mode Switching &M Unix Uucp Spoofing $SPSynchronous Transmit Clock Select &X Command Response Result Code Commands Echo Command Mode Characters EResult Codes Enable/Disable and No Response Answer Q Result Codes Multi-Tech or Standard AT &Q Result Codes Basic and Extended and Call Progress Selection Phone Line Conditioning Commands Enable/Disable Trelis Coded Modulation #TGuard Tones Not Used in BAI/BLI Models &G Bell/V.21 Tone Fallback Modes When On-Line #F Enable/Disable Lowspeed Fast Connect $FCCleardown at Disconnect &CD Auto Speed Detect #A 7 RS-232C Interface Control Commands Carrier Detect Control &CData Terminal Ready Control &D CTS Control &R Data Set Ready Control &S CTS/RTS Interaction Control &RFDSR/CD Interaction Control &SF Error Correction Commands Normal Mode &E0Auto-Reliable Mode &E1 Reliable Mode &E2 Mode Select #L Auto-Reliable Buffering $A Enable/Disable Auto Reliable Fallback Character $F Error Correction/300bps $ERetransmit Count $R Flow Control Commands Hardware Flow Control &E4Xon/Xoff Flow Control &E5 Xon/Xoff Pass-Through &E7 Send Xon/Xoff Characters #XHewlett-Packard ENQ/ACK Pacing &E9 Normal Mode Modem Flow Control On &E11 Terminal/Computer Initiated Pacing &E13Maximum Block Size &BS Parity Selection #P Normal/Auto-Reliable/Reliable Mode Commands Xon/Xoff Pass-Through CommandsEnq/Ack Pacing Commands Speed Conversion Commands Speed Conversion $BAModem Baud Rate $MB Serial Port Baud Rate $SB Immediate Action Commands Listing On-Line Diagnostics L8 Off Hook H Line Probe Commands Force Answer Mode aExiting Command Mode, Going Back On-Line O Registers Number of Rings Until Modem Answers Rings Which Have OccurredEscape Code Character Return Character Time for Carrier Abort Timer Line Feed CharacterBackspace Character Wait Time for Dial Tone S10 Carrier Loss Disconnect Delay Time S13 Remote Configuration Escape CharacterCarrier Detect Response Time S11 Tone Dialing Tone Spacing and Duration S15 Callback Time Delay S19 MT2834BL Only Dial-Back TimerS16 Callback Attempts S17 Changing Break Time S26 Failed Password Attempts S29 Local Inactivity TimerS24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S25 DTR Dropout Time S30 Inactivity Timer S32 Time Elapse for Escape SequenceS36 Time Between DTR Inactive and Modem Off-Hook S37 Time Between DTR Active and Modem On-Hook S48 Program V.34bis Connect Speeds Reading and Assigning S-Register Values Examples of Assigning ValuesExamples of Reading Values AT Command and S-Register Summary Callback Security and Remote Configuration Callback Feature Description Callback Security and Remote Configuration Remote Configuration Description To change your Remote Configuration feature status To set parity of the password/message prompt AT#CBN0xxxxxxxxxxCR Callback Operational Sequence Procedures Remote Configuration Procedures Remote Configuration Operation Procedures Remote Configuration and Callback Security AT Commands Remote Configuration/Callback Security S-Registers DIP-Switch Settings Dip-Switch Settings MT2834BA PC Board DIP-Switch Option Settings Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-UP = Down Down Dip-Switch Settings Speaker Volume Control Recording Option Configurations Switch Function Position Effect DIP Switches #13-14 DIP Switches #15-16 MT2834BADIP Switches #15-16 MT2834BL Warranty, Service and Tech Support Multi-Tech Systems, Inc. Warranty & Repairs Policies Warranty, Service, and Technical Support Online Warranty Registration Repair Procedures for International Distributors Replacement Parts Technical SupportInternet Sites Country Telephone Appendixes Upgrade Overview Appendix a Upgrading Your Modem’s FirmwareAppendix a Upgrading Your Modem’s Firmware Download the Upgrade File Upgrade the Modem’s Firmware Appendix B Troubleshooting None of the LEDs Light When the Modem Is OnModem Does Not Respond to Commands Appendix B Troubleshooting Appendix B Troubleshooting Modem Dials But Cannot Make a Connection Modem Cannot Connect When Answering Modem Disconnects While On-lineFile Transfer Is Slower Than It Should Be Am Losing Data Am Getting Garbage Characters on the Monitor Appendix C AT Command Summary Appendix C AT Command SummaryCommand Values Description DsNd Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 100 $FCn MT2834BL Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 101 $MBn Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 102 $SBn Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 103 Dial Tone Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 104 Callback Security/Remote Configuration Command Summary Password Command Summary 25bis Commands Delayed and Forbidden Numbers Appendix D V.25bis Operation25bis Operation Appendix D V.25bis Operation 25bis Mode AT Commands 25bis DIP-Switches25bis Set-Up and Initialization Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 108 25bis AT Commands Enable/Disable V.25bis Mode $V CommandChange Serial Baud Rate CSP Command 25bis Responses Result Codes Dial Phone Number Provided CRN Command Listing Delayed Phone Numbers RLD CommandListing Forbidden Phone Number RLF Command Disregard or Connect to Incoming Calls DIC or CIC Command ITU V.25bis Country Specific Information Appendix D V.25bis Operation Belgium SingaporeMulti-Tech Systems, Inc. MT2834BA/BL Series User Guide 112 Appendix E MultiModemBA Cables Appendix E MultiModemBA/BL Cables Appendix F Regulatory Information FCC Part 68 TelecomFCC Part Canadian Limitations Notice Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 115 South African Notice Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 116 Index Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 117 91-116 Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 118 PBX/CBX Disconnect Drop Time for DSR/CTS/CD63 Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 119