USRobotics x2/56K, 33600 user manual Link

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If both modems exchange carrier signals but fail to establish a data communications

link. (cont.)

When the call is finished, reset the modem by:

1.Typing ATZ

2.And then pressing the ENTER key. Make sure you’ve set your software to the same data format (word length, parity, and number of stop bits) required by the modem you’re trying to connect with and, if your modem is dialing out, that your software is set to a baud rate equal to or higher than that of the other modem.

NOTE: Using a data format different from the other modem’s can alter data. If you cannot call to find out the other modem’s data format, trying the following data formats in this order:

8-None-1, 7-Even-1, 7-Odd-1, and 7- Mark-1.

Make sure your modem’s connection rate isn’t locked. The default of &N0 (the last character is zero), the variable connection rate, lets the two modems negotiate the best possible connection rate. (See &Nn in the Commands chapter.)

Make sure the modem is in the right mode for what you’re trying to do:

Data mode for a data call.

Fax mode for a fax call.

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

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Contents User’s Manual 1997 Table of Contents Appendix B Technical Specifications Glossary Limited WarrantyVoice Functions Appendix a Technical ReferenceIntroduction How a Modem WorksHow Does Your Sportster Winmodem 33600 & x2/56K∗ Work ? QuicklyOther Features AccuratelyEfficiently With WindowsPackage Contents Plug and Play InstallationSportster Winmodem 33600 & x2/56K Installation Installation Procedure Insert the Modem Into the ComputerPlug 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 Using the Modem Installation TestFactory Settings Resetting the Modem to Factory Settings Remarks on Using the Modem Remember the Following Points When Using the ModemUn-Installing the Modem Page Symptom Solution TroubleshootingProblems and Solutions Send AT commands Modem does notRespond when, Terminal mode, youTone when you try to Using a certainErrors There is no audibleConnection problem ModemConnects itself Correctly toTransmission errors A fax, errors alterIntercontinental Connections areBefore the Modems Connect Signals but fail to If your PC reacts asThough you are Online, but no callLink. During Data Transfers If your screen displays random or garbage charactersDuring Fax Transmissions If You Are Still Having Problems Page Voice Functions Overview of Voice FunctionsApplication Settings SpeakerphoneImplementing Voice Functions Voice ApplicationsInput/Output Source Selection Page Main AT commands Appendix a Technical ReferenceBasic Command Set E0 Echo OFF E1 Modem displays keyboard commands Ln Controls speaker volume internals only Fn Sets online local echo of transmitted data ON/OFFHn Controls ON/OFF hook Displays the following informationXn Sets result code displayed. Default is Vn Displays verbal/numeric result codesFunctions Xn SettingResult Codes Advanced Command Set Enables/disables data compression Sets Error Control ARQ 1200 bps and higherSets Guard Tone Sets Transmit DataTD flow controlWrites current configuration to Nvram templates Sets pulse rotary dial make/break ratioSets Receive Data RD hardware flow control Controls Data Set Ready DSR operationsReg Default Function RegistersSets the number of seconds the modem Page Bit Value Result Reg Default Function Reg Default Function Page Value Bit 4 Bit ResultBit 128 Reserved Page Page Sportster Winmodem X2/56K Specifications Electrical power Electromagnetic Compatibility SafetyCE Mark Page Analog signals GlossaryAsynchronous transmission Baud rateBit BitsBps BufferData mode Digital signalsError correction DuplexFax mode FallbackFlow control Local EchoRemote Echo ParityProtocol Terminal mode Serial transmissionSynchronous transmission TerminalXON/XOFF Page Limited Warranty Advised of the Possibility of Such Damages Page 024.1388-00