Multi-Tech Systems MT5634ZLXE-T, MT5634ZLX 2 manual AT Commands, S-Registers, and Result Codes

	Chapter 3 - AT Commands, S-Registers, and Result Codes
Zn	Recall stored profile.
Z0	Reset and recall user profile 0. Either Z0 or Z1 restores the same single profile.
Extended “AT&” (Ampersand) Command Set (* indicates factory default setting)
Command	Function
&Cn	Data carrier detect option
&C0	State of carrier from remote modem is ignored. DCD circuit is always on.
&C1 *	DCD turns on when the remote modem’s carrier signal is detected, and off when the
	carrier signal is not detected.
&Dn	Data Terminal Ready (DTR) option
&D0	DTR ignored
&D1	Go to command mode on on-to-off DTR transition.
&D2 *	Hang up and go to command mode on on-to-off DTR transition. Auto-answer is
	disabled if DTR is low.
&D3	Hang up and reset from user profile 0 on the on-to-off DTR transition.
&F	Recall factory default setting as active configuration.
&Gn	V.22bis guard tone option
&G0 *	No guard tone
&G1	550 Hz guard tone
&G2	1800 Hz guard tone
&Kn	Set local flow control
&K0	Disable flow control
&K3 *	Enable bi-directional hardware flow control (CTS/RTS).
&K4	Enable bi-directional software flow control (XON/XOFF).
&Qn	Async communications mode options
&Q0	Async mode, buffered (same as “AT\N0”)
&Q5 *	Error control mode, buffered (same as “AT\N3”)
&Q8	MNP error control mode. If an MNP error control protocol is not established, the
	modem will fallback according to the current setting in S36 register.
&Q9	V.42 or MNP error control mode. If neither error control protocol is established, the
	modem will fallback according to the current setting in S36 register.
&Sn	Data Set Ready (DSR) option
&S0 *	DSR always on
&S1	DSR on during handshake and on-line, off in test mode or idle mode
&Tn	Self-test commands
&T0	Terminate any test in progress
&T1	Local analog loopback test
&T3	Local digital loopback (LDL) test

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