Black Box MD1641A, MD1640A manual 160, #Xn

SERIES II INTELLIGENT DATA/FAX MODEMS

Command	Values	Description
Xn	n = 0,1,2,3 or 4	*X0 selects Basic Result Codes (w/o
		CONNECT 1200, CONNECT 2400).
		X1 selects Extended Result Codes
		(w/CONNECT 1200, CONNECT 2400).
		X2 selects Standard AT Command set
		with NO DIAL TONE.
		X3 selects Standard AT Command set
		with BUSY.
		X4 selects Standard AT Command set
		with NO DIAL TONE and BUSY.
&Xn	n = 0, 1, or 2	*&X0 has sync clock controlled by DIP
		switch.
		&X1 forces external sync clocking.
		&X2 forces slave sync clocking.
#Xn	n = 0 or 1	*#X0 selects single XOFF character sent
		until XON level returns.
		#X1 selects multiple XOFF characters
		after buffer level is full.
Yn	n = 0 or 1	*Y0 disables sending or responding to
	(In Dial Command) long space “break”.
		Y1 enables sending or responding to long
		space “breaks”.
Z		All configuration parameters are reset to
		default values.
,	In Dial Command	Causes pause during dialing.
;	In Dial Command	Causes return to Command Mode after
		dialing.
!	In Dial Command	Causes modem to flash On-Hook.
@	In Dial Command	Causes modem to wait for ringback, then
		5 seconds of silence before processing
		next part of command.

* Factory Default Setting

160