Digicom 3910, 3911 operation manual 14-9

AT Command Set and S-Registers

Table 14-2

(5 of 10)

391x Series AT Commands

AT		Description	DCP LCD
			Command
Command
			Sequence
Zn	Reset and Load Active.		Control\Reset
	Z0	Loads configuration options from Active (Saved) to Active
		(Operating).
	Z1	Loads configuration options from Customer 1 to Active
		(Operating).
	Z2	Loads configuration from Customer 2 to Active (Operating).
	Z3	Loads configuration options from Active (Saved) to Active
		(Operating) and performs a reset.
&Cn	LSD Control.		Configure\Edit\
	&C0	Forced On. LSD ON at all times.	DTE Interface
	&C1	Standard RS232. LSD is ON when the remote modem’s
		carrier signal is detected. LSD is OFF when carrier signal is
		not detected.
	&C2	Wink When Disconnect. LSD normally forced ON, turns OFF
		for approximately one second upon disconnecting.
	&C3	Follows DTR. State of LSD follows state of DTR.
	&C4	Simulated Control Carrier. State of LSD follows state of
		remote modem’s RTS.
	&C5	=DTR/Disconnect Off. State of LSD follows state of DTR
		except upon a disconnect where DTR remains ON and LSD
		turns OFF. DTR must then toggle OFF and ON to turn LSD
		ON. Use this setting for AT&T DATAKIT applications. Note
		that to use this option, the DTR Action configuration option
		must be set to Stndrd_RS232 (&D1 or &D2).
&Dn	DTR Action.		Configure\Edit\
	&D0	Ignore. Modem ignores the true status of DTR and treats it	DTE Interface
		as always ON.
	&D1,&D2,&D3
		Standard RS232. DTR Signal is controlled by the DTE.
	&D4	Controls On-Hook. Modem does not disconnect from the VF
		line until DTR turns OFF.
	&D5	Controls Transmitter Mute. Mutes the transmitter whenever
		DTR drops on the DTE interface. This can be used on the
		answer side modem to force the originate modem to initiate a
		dial backup.
	NOTE: Only the Standard RS232 setting is allowed in Austria.

3910-A2-GN32-40 September 1998 14-9