Ositech comm Trumpcard Data/Fax Modem manual Dn DTR Option, Restore Factory Configuration, None

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Section Four

&Dn — DTR Option

Parameters

0, 1, 2, or 3

Default0

Determines actions taken by the modem in relation to the Data Terminal Ready (/DTR) signal of the serial port. The effect of /DTR loss depends upon the &D and &Q (&M) commands.

The action for the event that follows /DTR loss is indicated in the following table:

	&D0	&D1	&D2	&D3
&Q0	NONE	2	3	4
&Q1	1	2	3	4
&Q2	3	3	3	3
&Q3	3	3	3	3
&Q4	1	2	3	4
&Q5	NONE	2	3	4
&Q6	NONE	2	3	4

The DTR-going-off events corresponding to the action numbers in the above table are:

1.Modem disconnects and sends OK result code.

2.Modem goes into command mode if in data mode and sends the OK result code.

3.Modem disconnects, sends the OK result code, and disables auto answer while /DTR is OFF.

4.Modem performs a warm start (i.e., same as Z command).

&F — Restore Factory Configuration

Parameters none

Defaultnone

Loads the modem active configuration area with the factory default values.

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Trumpcard 14400/28800 Modem

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Contents Trumpcard Data/Fax Modem User’s Guide and ReferenceCopyright How To Contact UsFTP Preface FCC Notice Regulations Governing the Use of Modems Page Vii Contents Modem Command Reference Page Introduction Features Data ModeFacsimile Mode Cellular ModeUnique Features 22bis Industry Standards32bis 42bis MNP 2, 3,MNP 27terHardware Installation Preparing for 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 Before You Begin Enabling The TrumpcardUsing AT Commands Operating the TrumpcardMaking an Outgoing Call Tone or Pulse DiallingStoring a Number Re-Dialling the Last NumberConnection Messages Connect 1200TX/75RX FAXData CarrierSetting Up for a Non-Error Correcting Connection Ending Your ConnectionSetting up for a Cellular Connection Receiving an Incoming CallModem 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 Modem Command Summary +MSModem Command Reference Re-execute Modem Command DescriptionsAnswer Bn Set ITU-T or Bell Mode Dn DialATB0 ATB1ATDS=2 En Command Echo Fn Select Line Modulation 14400 only+Ms Select Line Modulation 28800 only Sub-parameter DefinitionsHn Switch-Hook Control VFCATH0 ATH1Olume IdentificationMn Speaker Control Nn Automode Detection On Return To The On-Line StateSet Pulse Dial as Default Qn Result Code DisplaySn Read/Write S Registers ATQ0Vn 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 Mn Communication Mode Pn Dial Pulse Ratio disabled for the U.SQn Communication Mode Ln Line TypeRn RTS/CTS Option Sn DSR OptionTn T est and Diagnostic View Configuration and User Profiles AT&T6AT&T7 AT&T8Yn Designate Default User Profile Wn Store User ProfileZn=x Store Phone Number \Bn T ransmit Break\Gn Modem-to-Modem Flow Control \Kn Break ControlAT\K3 AT\K1AT\K5 \Nn Operation Mode Control Cn Compression 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 @Mn Initial Cellular Power Level En Compromise EqualizerInit string Event Based Command Init string = NullModem S Registers Default Register SettingsModem Register Summary Modem Command Reference S95 Extended Result Codes Register Descriptions S5 Backspace Character S6 WaitS7 Wait For Carrier After Dial S8 PauseS10 Lost Carrier To Hang Up Delay S9 Carrier Detect Response TimeS11 Dtmf T one Duration S12 Escape Code Guard TimeS18 Test Timer S24 Sleep Inactivity TimerS25 Delay to DTR S30 Inactivity TimerS33 Xoff Character S32 XON CharacterS36 Lapm Failure Control Range Default S37 Desired Telco Line SpeedS38 Delay Before Forced Disconnect S46 Protocol SelectionS48 V .42 Negotiation Action S86 Connection Failure Cause CodeS95 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