Ampersand AT& Commands, Percent AT% Commands

Appendix A1015N-2MFM-1A

“AT” COMMANDS and ‘S” REGISTERS

EXCLUSIVE TO THE PE2400

Command	Factory Default		Parameters / Descrlptlon

&Dn	n = 0	Data Terminal Ready Option. &Dn controls the Data Terminal Ready (DTR) options.
		Parameters: n = 0, 1, 2, 3
		n = 0	Modem ignores DTR (factory default)
		n = 1	Modem assumes command state when ON-to-OFF transition Is detected
			on DTR.
		n = 2	Modem hangs up, assumes command state and disables auto-answer
			upon detecting ON-to-OFF transition on DTR.
		n = 3	Modem assumes initialization state upon detecting an ON-to-OFF transition
			on DTR.
		Result codes: OK
&Jn	n = 0	Auxiliary Relay Control. &Jn determines how the auxiliary relay is controlled.
		Parameters: n = 0.1
		n = 0	The auxiliary telco relay is commanded to stay open. Suitable for RJ-11,
			RJ-41 S, or RJ-45S type phone jack (factory default).
		n =1	The auxiliary telco relay is controlled by off-hook/on-hook. If the modem is
			off-hook, the relay is commanded to close (connectingAtoA1); if the modem
			is on-hook. the relay is commanded to open (disconnecting A from A1).
			Suitable for RJ-12 or RJ-13 type phone jacks.

Command	Factory Default		Parameters / Descriptlon
%Dn	n = 0	DTMF Attenuation. %Dn command sets the DTMF transmit level attenuation.
		n = 0	0 dB attenuation
		n =1	2 dB attenuation
		n = 2	4 dB attenuation
		n = 3	6 dB attenuation
		n = 4	8 dB attenuation
		n = 5	10 dB attenuation
		n = 6	12 dB attenuation
		n = 7	14 dB attenuation
%Ln	n = 0	Transmit Attenuation. %Ln command sets the transmit level attenuation.
		n = 0	0 dB attenuation
		n = 1	2 dB attenuation
		n = 2	4 dB attenuation
		n = 3	6 dB attenuation
		n = 4	8 dB attenuation
		n = 5	10 dB attenuation
		n = 6	12 dB attenuation
		n = 7	14 dB attenuation

A-6