USRobotics 33600 During Data Transfers, If your screen displays random or garbage characters

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During Data Transfers

If your screen displays random or garbage characters.

∙Make sure your communications port is set to connect at the maximum possible connect rate.

∙Set your software to the same word length, parity, and stop bits as the remote modem.

∙Peripherals (drivers for hardware and software) may be interfering with the transmission. Try disabling the extensions before you run your communications software.

∙The flow control settings for your software and modem may be different. Check to see that your software and the modem are set for the same kind of flow control, either hardware or software (hardware is recommended). Some communications programs also require that you disable the kind of flow control you are not using.

∙Load the template that enables hardware flow control as well as other optimal settings. Go into terminal mode (your communications software should let you switch to terminal mode) and:

1.Type AT&F1

2.And then press the ENTER key.

If the settings are the same, the problem may be with the phone line.

Sportster Winmodem 33600 & x2/56K - User's manual 29

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Contents User’s Manual 1997 Table of Contents Glossary Limited Warranty Appendix B Technical SpecificationsVoice Functions Appendix a Technical ReferenceHow a Modem Works IntroductionQuickly How Does Your Sportster Winmodem 33600 & x2/56K∗ Work ?Accurately Other FeaturesEfficiently With WindowsPackage Contents Installation Sportster Winmodem 33600 & x2/56K InstallationPlug and Play Insert the Modem Into the Computer Installation ProcedurePlug in the power plug and turn the computer on Run the Modem’s Installation Program If you choose Then try This COM port This IRQ Running the Installation Program on a Windows 95 System Installing the Communications Software Page Changing Country Setup under Windows Page Installation Test Using the ModemFactory Settings Resetting the Modem to Factory Settings Remember the Following Points When Using the Modem Remarks on Using the ModemUn-Installing the Modem Page Troubleshooting Problems and SolutionsSymptom Solution Modem does not Send AT commandsRespond when, Terminal mode, youUsing a certain Tone when you try toErrors There is no audibleModem Connection problemConnects itself Correctly toA fax, errors alter Transmission errorsIntercontinental Connections areBefore the Modems Connect If your PC reacts as Signals but fail toThough you are Online, but no callLink. If your screen displays random or garbage characters During Data TransfersDuring Fax Transmissions If You Are Still Having Problems Page Overview of Voice Functions Voice FunctionsSpeakerphone Application SettingsImplementing Voice Functions Voice ApplicationsInput/Output Source Selection Page Appendix a Technical Reference Main AT commandsBasic Command Set E0 Echo OFF E1 Modem displays keyboard commands Fn Sets online local echo of transmitted data ON/OFF Ln Controls speaker volume internals onlyHn Controls ON/OFF hook Displays the following informationVn Displays verbal/numeric result codes Xn Sets result code displayed. Default isXn Setting Result CodesFunctions Advanced Command Set Sets Error Control ARQ 1200 bps and higher Enables/disables data compressionSets Guard Tone Sets Transmit DataTD flow controlSets pulse rotary dial make/break ratio Writes current configuration to Nvram templatesSets Receive Data RD hardware flow control Controls Data Set Ready DSR operationsRegisters Reg Default FunctionSets the number of seconds the modem Page Bit Value Result Reg Default Function Reg Default Function Page Bit 4 Bit Result BitValue 128 Reserved Page Page Sportster Winmodem X2/56K Specifications Electrical power Safety CE MarkElectromagnetic Compatibility Page Glossary Analog signalsAsynchronous transmission Baud rateBits BitBps BufferDigital signals Data modeError correction DuplexFallback Fax modeFlow control Local EchoParity ProtocolRemote Echo Serial transmission Terminal modeSynchronous transmission TerminalXON/XOFF Page Limited Warranty Advised of the Possibility of Such Damages Page 024.1388-00