Multi-Tech Systems MT2834ZPX owner manual S36 Time Between DTR Inactive and Modem Off-Hook

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Chapter 4 - AT Commands, S-Registers and Result Codes

S36

Time Between DTR Inactive and Modem Off-Hook

Unit:	1 Second
Range:	0-255 seconds
Default:	0

Description: Sets the time between DTR inactive (low) and the modem going off-hook. The DTR Busy-out feature is disabled with S36=0.

S37

Time Between DTR Active and Modem On-Hook

Unit: 1 Second Range: 0-255 seconds Default: 5

Description: Sets the time between DTR being active and the modem going on-hook(not busy).

S48

Program V.34 Connect Speeds

Unit: N/A

Range: 33, 31, 28, 26, 21, 19, 16, 14, 12, 9 and 4

Default: 0

Description: Defines which speed modem connects within V.34 mode scope (e.g., S48 = 21 means maximum connect speed is 21.6K). This register compensates for line conditions that will not support higher V.34 speeds (e.g., 33.6K, 31.2K, 28K, 26.4K, 24K...). The modem default is a value of 0, which indicates a connection

attempt of 33.6K.

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Contents Page Record of Revisions Revision Description Contents Index Introduction and Description Modem Features Product Description Fax FeaturesInstallation and Connection How to Use This ManualSoftware Configuration AT Commands and S-RegistersTesting Your Modem Service, Warranty & Technical Support/ BBSAppendices Safety Warnings Installation and ConfigurationConfiguration and Installation Procedure StepProcedure Configuration/Installation ProcedureInstallation and Configuration Is Your MT2834ZPX Ready for Use? Operating Your MT2834ZPX Simple Operations Configuring Software for Your Modem Software Configuration IntroductionAT &F X4 S0= 2 M PC Initialization StringsConfiguring Software for Your Computer Changing Default ParametersTerminal Emulation Configuring Software for the Remote SystemWhen to Disable Data Compression File Transfer ProtocolsAT &F S0=0 X4 &E14 M Disabling Error Correction 16550 Uart and WindowsAT &F S0=0 X4 &E0 M COM2FIFO=1 COMnFIFO=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 Remote Configuration ProceduresRemote Configuration Operation Procedures StepProcedure Contd. Remote Configuration Operation Procedures Password CommandsEscape Code Character RegistersReturn Character Pause Time for Comma S13 Remote Configuration Escape Character S29 Local Inactivity Timer S36 Time Between DTR Inactive and Modem Off-Hook Q0 Multi-Tech Result Codes Result CodesQ1 Standard AT Result Codes AT Commands and S-Register Summary Modem Does Not Respond to Commands TroubleshootingPage Modem Dials But Cannot Make a Connection Page Modem Disconnects While Online Modem Cannot Connect When Answering File Transfer Is Slower Than It Should BeLosing Data Fax and Communications Software Won’t Run at the Same Time Getting Garbage Characters on the MonitorLocal Analog Loopback Test Testing Your Modem Local Analog Loopback Test/V.54 LoopDigital Loopback Test/V.54 Loop 2 Local/Manual Digital Loopback Test local/manual Digital Loopback Test/V.54 Loop 2 Remote/ AutomaticDigital Loopback Test remote/automatic Limited Warranty Service, Warranty and Tech Support IntroductionOn-line Warranty Registration Tech SupportRecording Modem Information Service To log on to the Multi-Tech BBS About the Multi-Tech BBSTo Download a file If you know the file nameIf you don’t know the file name About CompuServe/Internet About the Multi-Tech Fax-Back ServiceAppendix a Technical Specifications Command Buffer Intelligent FeaturesModulation Fax ModulationsCarrier FrequenciesData Carrier Frequencies BpsBell StandardCarrier Frequencies Diagnostics ConnectorsTemperature Power Consumption Dimensions697 770 852 941 1209 Digits 1336 1477 1633 Appendix B Tone Dial FrequenciesAppendix 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