Extron electronic MVX 128 manual G InX! AudX$

1*Z

0*Z

X#*0Z

X#Z

X#*1Z

X*]

Amt1]

Amt0]

AmtX#*0]

AmtX#*1]

Programmer’s Guide, cont’d

Command/response table for SIS commands (continued)

Command	ASCII command	Response	Additional
	(host to switcher)	(switcher to host)	description
Video mute commands

RGB mute

RGB unmute

Read RGB mute Global RGB mute Global RGB unmute

X#*1B	VmtX#*1]
X#*0B	VmtX#*0]
X#B	X*]
1*B	Vmt1]
0*B	Vmt0]

Mute output X# RGB (video off).

Unmute output X# RGB (video on).

1 = mute on, 0 = mute off. Mute all RGB outputs. Unmute all RGB outputs.

Audio input gain and attenuation

NThe set gain (G) and set attenuation (g) commands are case sensitive.

Set input audio gain to +dB	X!*X%G	InX!•AudX$]
value
Example:	1*2G	In01•Aud+02]	Set input 1 audio gain to
			+2 dB.
Set input audio attenuation	X!*X%g	InX!•AudX$]
to -dB value
Increment gain	X!+G	InX!•AudX$]	Increase gain by 1 dB.
Example:	5+G	In05•Aud+03]	Audio input 5 level
			incremented from +2 dB to
			+3 dB.
Decrement gain	X!-G	InX!•AudX$]	Decrease gain by 1 dB.
Example:	7-G	In07•Aud-09]	Audio input 7 level
			decremented from -8 dB to
			-9 dB.
Read input gain	X!G	X$]

Audio output volume

NThe table on page 4-7 defines the value of each audio volume step.

Set the audio volume to a	X#*X&V	OutX#•VolX&]
specific value
Example:	1*50v	Out01•Vol50]	Set output 1 volume to 79%.
Increment volume	X#+V	OutX#•VolX&]	Increment volume by 1 step.
Example:	1+V	Out01•Vol51]
Decrement volume	X#-V	OutX#•VolX&]	Decrease volume by 1 step.
Read output volume	X#V	X&]

Audio mute commands

Audio mute

Audio unmute

Read audio mute

Global audio mute

Global audio unmute

Mute output X# audio (audio off).

Unmute output X# audio (audio on).

1 = mute on, 0 = mute off. Mute all audio outputs. Unmute all audio outputs.

4-6 MVX 128 A VGA Matrix Switchers • Programmer’s Guide