Extron electronic MLS 304MA, MLS 304SA Command/response table for special function SIS commands

Command/response table for special function SIS commands

The syntax for setting a special function is __ * X? #, where __ is the function number and X? is the value. To view a function’s setting, use __#, where __ is the function number. In the following table the values of the X? variable are different for each command/function. These values are given in the right column.

Command	ASCII Command	Response	X? values
	(host to switcher)	(switcher to host)	and additional descriptions
Delay times
Set the RGB delay (Triple-Action Switching). 3 * X? #		RGBDly*X? ]	0	= 0.0 seconds (default), 1 = 0.5
			seconds, 2 = 1.0 seconds,
			... in ½ second steps up to
			10 = 5.0 seconds
Example:	3*7#	RGBDly*07]	Example: 3.5 second RGB delay.
Audio settings
Set the preamp output mode.	18 * X? #	PreAmpMod* X? ]	Set the line level audio
			(Lineout’s and Preamp’s)
			outputs to be either mono or
			stereo signals.
			1	= mono	PRELIMINARY
			2	= stereo (default)
N If mono is selected, the audio signal is the same on both the left and right channels.
If stereo is selected, the switcher sends out different (stereo) signals on the left and right channels.
Set the loudness control.	29 * X? #	Loudness*X? ]	When output volume is low,
			provide a +6 dB boost at 100Hz
			and at 10 kHz. When output
			volume is high, decrease the
			boost at those frequencies.
			This improves sound richness
			by restoring the high and low
			frequencies to which the ear is
			insensitive to at low volume
			levels. The effect diminishes as
			volume is increased.
			0	= off (default for firmware ver.
			2.1 and higher) (remove boost)
			1	= on (default for firmware ver.
			2.0 and lower) (turn boost on)
Set line level audio outputs’ levels	40 * X? #	LineLevel*X? ]	1	= -10 dBV (-8 dBu, 0.32 Vrms),
			unbalanced output (default)
			2	= +4 dBu (+6 dBV, 1.23 Vrms),
			balanced output
N If the connector is wired for balanced output, the level is +6 dB higher than if it is wired for unbalanced output.
Mode selection
Select the Monitor Out output mode 28 * X? #		MonitorOutOpt*X? ]	See pages 3-7 and 3-8 for an
			explanation of these modes.
			1	= mode 1 (RGB follow mode)
			2	= mode 2 (DA mode)
			3	= mode 3 (standard mode)

MLS 304 Series, MLS 406Series • Serial Communication 4-