Black Box MD1641A, MD1640A manual BSn, $BAn, CDn, DsNd

SERIES II INTELLIGENT DATA/FAX MODEMS

Command	Values	Description
&Bn	n = 0 or 1	*&B0 means normal transmit buffer size.
		&B1 means reduced transmit buffer size.
&BSn	n = 0 or 1	&BS0 means maximum transmit block size
		of 64 characters.
		*&BS1 means maximum transmit block size
		of 256 characters.
$BAn	n = 0 or 1	*$BA0 means speed conversion is on.
		$BA1 means speed conversion is off.
&Cn	n = 0,1,2,4	&C0 forces Carrier Detect on.
		*&C1 lets Carrier Detect act normally.
		&C2 lets Carrier Detect drop S24 time on
		disconnect.
		&C4 resets modem when Carrier Detect
		drops.
&CDn	n = 0 or 1	*&CD0 execute cleardown on disconnect.
		&CD1 do not execute cleardown on
		disconnect.
Ds	s = phone #	Dial a telephone number “s,” where s may
		include up to 60 digits or T, P, R, comma
		and ; characters.
* Factory Default Setting

Command	Values	Description
DsNd	s = phone #	Store telephone number. To store, phone
	d = 0 thru 9	number ”s“ is entered and followed by N
		and then Directory Number “d.”
&Dn	n = 0 thru 3	&D0 DTR is ignored.
		&D1 means modem returns to command
		mode.
		*&D2 lets modem react to DTR normally.
		&D3 causes modem to reset to modem
		default parameters.

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