Ositech comm Trumpcard Data/Fax Modem manual Rn RTS/CTS Option, Sn DSR Option

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	Modem Command Reference
Examples
AT&Q0	Selects asynchronous operation in the Direct mode.
	In this mode, the communications software speed
	must match the telco line speed.
AT&Q4	Selects AutoSync operation. Is used in conjunction
	with communications software that is compatible
	with the Hayes Synchronous Interface (HSI).
AT&Q5	Selects error correction mode. Modem negotiates
	an error-correction link. The modem can be
	configured to either disconnect or fallback to a
	normal asynchronous connection if the link cannot
	be negotiated (refer to register S36).
	&Q5 and S36=0 Same as \N2 command (no
	fallback)
	&Q5 and S36=1 Same as \N3 command (fallback)
AT&Q6	Selects asynchronous operation in Normal mode
	(Speed Buffering). In this mode, the communications
	software speed can differ from the telco line speed.
&Rn — RTS/CTS Option
Parameters	0 or 1
Default	0

Controls the state of the Clear To Send (/CTS) signal operation, this can be altered if hardware flow control is enabled. (see &K command).

Examples

AT&R0	CTS acts according to V.25bis handshake (i.e. /CTS
	tracks /RTS [Request To Send])
AT&R1	The modem ignores /RTS;/CTS is always ON
&Sn — DSR Option
Parameters	0 or 1
Default	0

Determines whether Data Set Ready (/DSR) operates in accordance with EIA-232-D specification or remains ON.

Examples

AT&S0	DSR is always ON
AT&S1	DSR is turned ON at start of handshaking and OFF
	when carrier is lost

User’s Guide and Reference

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Contents User’s Guide and Reference Trumpcard Data/Fax ModemCopyright How To Contact UsFTP Preface FCC Notice Regulations Governing the Use of Modems Page Vii Contents Modem Command Reference Page Introduction Data Mode FeaturesCellular Mode Facsimile ModeUnique Features 22bis Industry Standards32bis 27ter 42bisMNP 2, 3, MNPPreparing for Installation Hardware InstallationInstalling the Trumpcard Modem Pcmcia Modem Adapter connector is keyed to go in one way Line Interface Module Connection to Telephone Network Basic Modem Operation Enabling The Trumpcard Before You BeginOperating the Trumpcard Using AT CommandsTone or Pulse Dialling Making an Outgoing CallStoring a Number Re-Dialling the Last NumberConnection Messages Carrier Connect 1200TX/75RXFAX DataEnding Your Connection Setting Up for a Non-Error Correcting ConnectionReceiving an Incoming Call Setting up for a Cellular ConnectionModem Configurations for Cellular Operation Cellular Phone Configuration Cellular Call Status Section Four Trumpcard 14400/28800 Modem Modem Command Reference Modem Command Guidelines Modem Command Reference +MS Modem Command SummaryModem Command Reference Re-execute Modem Command DescriptionsAnswer ATB1 Bn Set ITU-T or Bell ModeDn Dial ATB0ATDS=2 Fn Select Line Modulation 14400 only En Command EchoSub-parameter Definitions +Ms Select Line Modulation 28800 onlyATH1 Hn Switch-Hook ControlVFC ATH0Olume IdentificationMn Speaker Control On Return To The On-Line State Nn Automode DetectionATQ0 Set Pulse Dial as DefaultQn Result Code Display Sn Read/Write S RegistersVn Result Code Form Set Tone Dial as DefaultWn Connect Message Control Xn Extended Result Codes Result Codes Q0, V1, Wn, S95 Carrier Connect Yn Control Long Space Disconnect Zn ResetCn DCD Option Dn DTR Option Restore Factory ConfigurationNone Jn T elephone Jack Selection Gn Set Guard ToneKn DTE/Modem Flow Control Ln Line Type Mn Communication ModePn Dial Pulse Ratio disabled for the U.S Qn Communication ModeSn DSR Option Rn RTS/CTS OptionTn T est and Diagnostic AT&T8 View Configuration and User ProfilesAT&T6 AT&T7Wn Store User Profile Yn Designate Default User Profile\Kn Break Control Zn=x Store Phone Number\Bn T ransmit Break \Gn Modem-to-Modem Flow ControlAT\K3 AT\K1AT\K5 Cn Compression Control \Nn Operation Mode ControlReport Received Signal Level En Enable/Disable Line Quality MonitorReport Line Signal Quality Mn T ransmit Level Adjustment for Cellular Connection Kn MNP Extended ServicesHn Link Negotiation Speed En Compromise Equalizer @Mn Initial Cellular Power LevelInit string = Null Init string Event Based CommandModem S Registers Default Register SettingsModem Register Summary Modem Command Reference S95 Extended Result Codes Register Descriptions S8 Pause S5 Backspace CharacterS6 Wait S7 Wait For Carrier After DialS12 Escape Code Guard Time S10 Lost Carrier To Hang Up DelayS9 Carrier Detect Response Time S11 Dtmf T one DurationS30 Inactivity Timer S18 Test TimerS24 Sleep Inactivity Timer S25 Delay to DTRS33 Xoff Character S32 XON CharacterS36 Lapm Failure Control S37 Desired Telco Line Speed Range DefaultS46 Protocol Selection S38 Delay Before Forced DisconnectS86 Connection Failure Cause Code S48 V .42 Negotiation ActionS95 Extended Result Codes Class 1 Commands Facsimile CommandsClass 2 Commands Modem Test Procedures Local Modem Self-Test Local Analog Loopback Local Analog Loopback with Self- Generated Pattern Remote Digital Loopback Remote Digital Loopback with Self- Generated Pattern Local Digital Loopback Product Information Testing Modem MemoryROM Checksum Test