Extron electronic MLS 406MA, MLS 304SA, MLS 304MA Audio status for the active input, Aux/Mix input

Command/response table for SIS commands (continued)

Command	ASCII Command	Response	Additional description
	(host to switcher)	(switcher to host)
Increment the volume.	+V	Vol X1) ]	Increase audio output.
Decrement the volume.	-V	Vol X1) ]	Decrease audio output.
View the volume level.	V	Vol X1) ]	Show the output volume.
Audio status for the active input
These commands allow you to view (or program a control system to monitor) the on/off status of the Clip, Normal, and
Signal indicators (the equivalent of viewing the front panel Volume LEDs) between adjustments to the audio input levels.
For details on making these adjustments via the front panel controls, see pages 3-2 and 3-3.
View Signal, Normal, & Clip status	S or 0S	Sig X& Norm X& Clp X& ]
View Signal (Min) status	1S	X& ]	Signal detection threshold:
			0 = off (Signal level is too low to
			detect.)
			1 = on (A signal of at least
			-20 dBV [-18 dBu] is present.)
View Normal (Mid) status	2S	X& ]	Normal range:
			0 = off (Input level is too low.)		PRELIMINARY
			1 = on (Input is in the right
			range.)
View Clip (Max) status	3S	X& ]	Clipping level:
			0 = off (Audio input has been set
			up properly.)
			1 = on
			(The level or gain is too high,
			audio clips/distorts. Output
			equipment could be damaged.
			Adjust the MLS’s input level so
			only the Normal LED is blinking.
			The Clip LED should not turn on.)
Aux/Mix input
Turn Aux/Mix input on or off.	X& M	Mix X& ]	Turn the Aux/Mix input on/off.
View the Aux/Mix status.	M	Mix X& ]	Show whether Aux/Mix input
			is turned on or off.
N The default Aux/Mix setting is On.
Front panel security lockout modes (executive modes)
Disable executive mode.	0X	Exe0 ]	Adjustments and selections can
			be made from the front panel.
Enable executive mode 1.	1X	Exe1 ]	Lock front panel input selection
			buttons; select inputs via RS-232
			or IR remote control only. Only
			volume adjustment is available
			via the front panel.
			This command is equivalent
			to pressing and holding front
			panel buttons 1 and 4.
Enable executive mode 2.	2X	Exe2 ]	Lock all front panel selections
			and adjustments; select inputs,
			change volume, etc., via RS-232
			only. The whole front panel is
			locked.
			Executive mode 2 can be
			enabled via RS-232 command,
			2X only. RS-232 or the front
			panel can be used to disable this
			mode.
	MLS 304 Series, MLS 406Series • Serial Communication			4-