Western Telematic APS-16M, APS-8M manual Data Terminal Ready DTR Control

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		The Internal Modem
Command	Function/Options
&Dn	Data Terminal Ready (DTR) Control.
	&D0	Modem ignores true status of DTR signal and responds
		as if it is always on.
	&D1	If DTR drops while in online data mode, the modem
		enters command mode, issues an OK, and
		remains connected.
	* &D2	If DTR drops while in online data mode, the modem
		hangs up. If the signal is not present, the modem will
		not answer or dial.
	&D3	If DTR drops, the modem hangs up and resets as if an
		ATZ command had been issued.

En Set Modem Command Mode Echo.

E0 Disable echoing of command mode characters.

*E1 Enable echoing of command mode characters.

&Wn	Store Current Modem Conﬁguration.
		&W0	Stores current modem settings in non-volatile memory
			and causes them to be loaded instead of the factory
			defaults at power-on or when the ATZ command
			is invoked.
	*	&W1	Clears user default settings from non-volatile memory
			and causes the factory defaults to be loaded at power-on
			or following the ATZ command.
+++AT	In-band Escape Sequence. Puts the modem in command mode
	(and optionally issues a command) while remaining online. Type
	+++AT and up to six optional command characters; then press
	[Enter]. Used mostly to issue the hangup command:
	+++ATT<CR>.
&Qn	Asynchronous Communications Mode.
		&Q0	Asynchronous with data buffering. Same as /N0.
	*	&Q5	Error control with data buffering. Same as /N3.
		&Q6	Asynchronous with data buffering. Same as /N0.
		&Q8	MNP error control mode. If MNP error control is not
			established, the modem falls back according to the
			setting in Register S36.
		&Q9	V.42 or MNP error control mode. If neither error
			control method is established, the modem falls back
			according to the setting in Register S36.

6-3

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Contents Models Covered User’s GuidePage Secure Racking Input SupplyGrounding Shock Hazard Do Not Enter Disconnect PowerTable of Contents List of Figures Introduction Typographic Conventions Configuration BackupModem Communication APS-8M and APS-16M UnitsFront Panel Unit DescriptionBack Panel  Power SwitchHardware Installation Getting StartedConnect your Equipment to the Serial Ports Communicating with the APS-8/16M Access Command ModePort Status Screen Model APS-8M Shown APS-8M / APS-16M Asynchronous Port Switches User’s Guide DC Powered Units Hardware InstallationConnecting Power to the APS Unit AC Powered UnitsConnect a Telco Line to the Modem Port Connecting Devices to the APS Serial PortsAccess to the APS-8/16M Command Mode ConfigurationPassword Functions System SetUp PortsSystem Parameters Menu System Parameters Menu /F Edit Password Directory Password DirectoryAdding Passwords Editing and Deleting Passwords Dial Back Function Deleting the Entire Password DirectoryAdd Name/Password Menu Dial Back ExampleSystem Parameters Menu Configuration Conventions Port ConfigurationPort Modes RTS/CTS 3. RS232 Port Configuration MenusConﬁguration Port Parameters Menu Modem Mode Port 3 Shown Conﬁguration APS-8M / APS-16M Asynchronous Port Switches User’s Guide Invalid Access Lockout Feature Copy Port Parameters Copying Parameters to All PortsSave User Selected Parameters APS-8M / APS-16M Asynchronous Port Switches User’s Guide Communicating with the Internal Modem Internal ModemCommon AT Commands Command Function/OptionsDial String Modiﬁers Data Terminal Ready DTR Control Command Function/Options Port Status Screen /S Status ScreensPort Diagnostics Screen /SD Port Diagnostics Screen Model APS-8M Defaults Shown Port Parameters Screens /W Password Directory Screen /VPassword Directory Screen Sample Values Shown APS-8M / APS-16M Asynchronous Port Switches User’s Guide Any-to-Any Mode OperationPort Connection and Disconnection Enter Disconnecting PortsThree Characters Uses the format EnterLLLEnter, where Server Enter Defining Hunt GroupsHunt Group Example Buffer Mode Passive ModeXx Enter Reading Data from Buffer Mode PortsPort Buffers Modem ModeOperation APS-8M / APS-16M Asynchronous Port Switches User’s Guide Sending Parameters to a File Saving and Restoring Configuration ParametersRestoring Saved Parameters 10-1 Upgrading APS-8/16M Firmware10-2 Command Reference Guide Command Conventions11-1 11-2 Command Response11-3 Command Summary11-4 Command SetFormat Response TerseFormat /C x x Enter Format /CP Enter11-5 11-6 Format /D/Y x x Enter2 Enter or /D/Y 3 Enter Format /E/Y x x Enter11-7 Format /F EnterFormat /H Enter Format /I/Y Enter11-8 Format /P x EnterFormat /S Enter Format /SD EnterFormat /V Enter Format /U EnterFormat /UF Enter Format /UL EnterFormat /W x Enter Format /X Enter11-10 Apx-1 RS232 Port InterfaceStop Bits 1 or SpecificationsPower RS232 Port InterfaceApx-3 Customer ServiceTrademark and Copyright Information Trademarks Used in this ManualApx-4 Apx-5 Regulatory StatementsApx-6 EMC, Safety, and R&TTE Directive ComplianceIndex-1 IndexIndex-2 Index Index-3Index-4 Page Sterling Irvine California 949 586-9950 Toll Free