Multi-Tech Systems MT2834ZPX owner manual PC Initialization Strings, AT &F X4 S0= 2 M

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MT2834ZPX Owner's Manual

PC Initialization Strings

We recommend the following initialization string for a MT2834ZPX connected to a PC-compatible computer:

AT &F X4 S0= 2 ^M

This string resets the MT2834ZPX to the factory default settings, selects extended result codes with NO DIAL TONE and BUSY, and turns on auto-answer to answer on the second ring. ^M must end every string sent to the modem from software. It is the ASCII code for the RETURN key on most keyboards, and the default code for the carriage return character in the MT2834ZPX and most communications programs. The carriage return character is defined in the MT2834ZPX in S-register S3; if you change it, you must also change the carriage return character code used in your communications software. If you send a command directly to the modem in terminal mode rather than indirectly through communications software, you must end the command string by pressing the RETURN key (<CR>) instead of adding ^M to the string.

Figure 3-1. The MEW Modem Initialization Setup

*Note that the above and following setup screens are examples found in MultiExpress for Windows (MEW), and that other 3rd party data communication software is similar but different.

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Contents Page Record of Revisions Revision Description Contents Index Introduction and Description Modem Features Fax Features Product DescriptionHow to Use This Manual Installation and ConnectionSoftware Configuration AT Commands and S-RegistersService, Warranty & Technical Support/ BBS Testing Your ModemAppendices Installation and Configuration Safety WarningsConfiguration/Installation Procedure Configuration and Installation Procedure StepProcedureInstallation and Configuration Is Your MT2834ZPX Ready for Use? Operating Your MT2834ZPX Simple Operations Software Configuration Introduction Configuring Software for Your ModemPC Initialization Strings AT &F X4 S0= 2 MChanging Default Parameters Configuring Software for Your ComputerConfiguring Software for the Remote System Terminal EmulationFile Transfer Protocols When to Disable Data CompressionAT &F S0=0 X4 &E14 M 16550 Uart and Windows Disabling Error CorrectionAT &F S0=0 X4 &E0 M COMnFIFO=1 COM2FIFO=1Page Modem AT Commands Command a Default $BA0 Description Command Values Default $EB0 Description =0 thru $Fn Command Values Default Command Values Default Description Default &P1 Description RFn Command T = 0, 1, 2, or Values Default Description Command @ Remote Configuration Procedures Remote ConfigurationRemote Configuration Operation Procedures StepProcedure Password Commands Contd. Remote Configuration Operation ProceduresRegisters Escape Code CharacterReturn Character Pause Time for Comma S13 Remote Configuration Escape Character S29 Local Inactivity Timer S36 Time Between DTR Inactive and Modem Off-Hook Result Codes Q0 Multi-Tech Result CodesQ1 Standard AT Result Codes AT Commands and S-Register Summary Troubleshooting Modem Does Not Respond to CommandsPage Modem Dials But Cannot Make a Connection Page Modem Disconnects While Online File Transfer Is Slower Than It Should Be Modem Cannot Connect When AnsweringLosing Data Getting Garbage Characters on the Monitor Fax and Communications Software Won’t Run at the Same TimeTesting Your Modem Local Analog Loopback Test/V.54 Loop Local Analog Loopback TestDigital Loopback Test/V.54 Loop 2 Local/Manual Digital Loopback Test/V.54 Loop 2 Remote/ Automatic Digital Loopback Test local/manualDigital Loopback Test remote/automatic Service, Warranty and Tech Support Introduction Limited WarrantyTech Support On-line Warranty RegistrationRecording Modem Information Service About the Multi-Tech BBS To log on to the Multi-Tech BBSTo Download a file If you know the file nameIf you don’t know the file name About the Multi-Tech Fax-Back Service About CompuServe/InternetAppendix a Technical Specifications Intelligent Features Command BufferModulation Fax ModulationsCarrier Frequencies BpsBell Standard Carrier FrequenciesDataCarrier Frequencies Connectors DiagnosticsTemperature Power Consumption DimensionsAppendix B Tone Dial Frequencies 697 770 852 941 1209 Digits 1336 1477 1633Appendix C FCC and Canadian Regulations RJ11C or RJ11W single line Appendix C FCC and Canadian Regulations Canadian Limitations Notice Index 15, 19 In-band Escape Sequence MultiExpress for Windows PBX/CBX Disconnect Drop Time for DSR/CTS/CD Rings Which Have Occurred Registers Serial port 17, 20, 21 17, 19