USRobotics 33600 Sets pulse rotary dial make/break ratio, Controls Data Set Ready DSR operations

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	&N9	16.800 bps.
	&N10	19.200 bps.
	&N11	21.600 bps.
	&N12	24.000 bps.
	&N13	26.400 bps.
	&N14	28.800 bps.
	&N15	31.200 bps.
	&N16	33.600 bps.
&Pn	Sets pulse (rotary) dial make/break ratio.
	&P0	U.S./Canada ratio, 39%/61%.
	&P1	U. K. ratio, 33%/67%.
&Rn	Sets Receive Data (RD) hardware flow control,
	Request to Send (RTS) (see also &In).
	&R1	Modem ignores RTS.
	&R2	Received Data to computer only on RTS.
&Sn	Controls Data Set Ready (DSR) operations.
	&S0	DSR override; always ON.
	&S1	Modem controls DSR.
&Tn	Begins test modes.
	&T0	Ends testing.
	&T1	Analog Loopback.
	&T2	Reserved.
	&T3	Local Digital Loopback.
	&T4	Enables Remote Digital Loopback.
	&T5	Prohibits Remote Digital Loopback.
	&T6	Initiates Remote Digital Loopback.
	&T7	Remote Digital with self test and error
		detector.
	&T8	Analog Loopback with self test and error
		detector.
&Wn	Writes current configuration to NVRAM templates.
	&W0	Modifies the NVRAM 0 template (Y0).
	&W1	Modifies the NVRAM 1 template (Y1).
&Yn	Sets break handling.
	&Y0	Destructive, but doesn’t send break.
	&Y1	Destructive, expedited.
	&Y2	Nondestructive, expedited.
	&Y3	Nondestructive, unexpedited.

Sportster Winmodem 33600 & x2/56K - User's manual 45

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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 Sportster Winmodem 33600 & x2/56K Installation 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 Problems and Solutions TroubleshootingSymptom 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 isResult Codes Xn SettingFunctions 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 Bit 4 Bit ResultValue 128 Reserved Page Page Sportster Winmodem X2/56K Specifications Electrical power CE Mark SafetyElectromagnetic Compatibility Page Glossary Analog signalsAsynchronous transmission Baud rateBits BitBps BufferDigital signals Data modeError correction DuplexFallback Fax modeFlow control Local EchoProtocol ParityRemote Echo Serial transmission Terminal modeSynchronous transmission TerminalXON/XOFF Page Limited Warranty Advised of the Possibility of Such Damages Page 024.1388-00