Paradyne 3800PLUS manual 5 of 3800Plus AT Commands, Description, Front Panel Branch, LSD Control

AT Command Set and S-Registers

Table 13-1

(5 of 11)

3800Plus AT Commands

AT Command		Description	Front Panel Branch
&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 DATAKITr applications. Note that to use this configuration
		option, the DTR Action configuration option must be set to
		Stndrd_RS232 (&D1 or &D2).
	&C6	Bridge Retrain. LSD behaves as if it were set for Stndrd_RS232,
		except that it is turned off when a retrain condition lasts longer than
		10 seconds, and turned on again when no retrain condition is
		detected for a period of 10 seconds.
&Dn	DTR Action		Configure\Edit\
	&D0	Ignore. Modem ignores the true status of DTR and treats it as	DTE Interface
		always ON.
	&D1	Off=Command Mode. Modem enters online Command Mode if
		connected when DTR switches Off.
	&D2	Standard RS232. DTR Signal is controlled by the DTE.
	&D3	Off=Reload Strap. Follows Standard RS232 operation, except that
		when DTR switches Off, the modem loads the Active (Saved) area
		into the Active (Operating) area.
	&D4	Controls On-Hook. Follows Standard RS232 operation, except that
		modem does not disconnect until DTR is lowered by the DTE.

3980-A2-GB30-20 November 1996 13-7