Extron electronic System 7SC manual Command Ascii Command Response Additional description

Serial Communication, cont’d

Command/response table for SIS commands

Command	ASCII Command	Response	Additional description
	(host to switcher)	(switcher to host)
Input selection

Select both video and audio		X1
Example:	6!
Select audio only
		X1
Select video only
		X1

!	Chn		X1
	Chn06
$	Aud
			X1
&	Vid
		X1

Video & audio input X1 Example: select input 6 video & audio Audio input X1

Video input X1

Display (projector) power

Turn display power on	1P	Pwr	X3
Turn display power off	0P	Pwr
			X3
View display power status	P	Pwr
			X3
Example:	P	Pwr2

On (discrete)

Off (discrete)

Show the display power status.

Display mute

Turn display mute on	1M	Mut	X2
Example:	1M	Mut1
Turn display mute off	0M	Mut
			X2
View display mute status	M	Mut
			X2

Mute

Unmute

Show the display mute status.

Display mode

Toggle display mode J Mde Toggle the display mode on/off.

Room function

Turn room relay 1 on	1*1 O	Rly 1*	X2
Turn room relay 1 off	1*0 O	Rly 1*
			X2
Turn room relay 2 on	2*1 O	Rly 2*
			X2
Example:	2*1O	Rly2*1
Turn room relay 2 off	2*0 O	Rly 2*
			X2
View relay 1 status	1O	Rly 1*
			X2
Example:	1O	Rly1*0
View relay 2 status	2O	Rly 2*
			X2
Example:	2O	Rly2*1

Relay 1 on (discrete) Relay 1 off (discrete) Relay 2 on (discrete)

Relay 2 off (discrete) Show the status of relay 1.

Show the status of relay 2.

Audio gain/attenuation

Set audio gain	X6	G	Aud	X9	Set a single input’s gain (in dB).
Example:	18G		Aud+09.0		Example: set gain to +9 dB
Set audio attenuation		g	Aud		Set an input’s attenuation (in dB).
	X7			X9
Example:	23g		Aud-11.5		Example: set attenuation to -11.5 dB
View audio channel level	G		Aud	X9	Show an input’s audio level.

Volume adjustment for the Variable output

Set the Variable output’s volume	X14	V	Vol	X14
Example:	82V		Vol082
Increment	+V		Vol
				X14
Decrement	-V		Vol
				X14
View the Variable output’s level	V		Vol
				X14

Specify the volume for the variable audio output. Example: set volume to 82 Increase variable audio output. Decrease variable audio output. Show the variable output volume.

Audio mute

Mute on (fixed & variable audio outputs)	1Z	Amt	X2
Example:	1Z	Amt1
Mute off (fixed & variable audio outputs)	0Z	Amt
			X2
View audio mute status	Z	Amt
			X2

Mute both audio outputs.

Unmute all audio outputs. Show the status of audio mute.

4-4 System 7SC • Serial Communication