User guide

MVC 121 • Remote Control
3-5
Command ASCII Command Response Additional description
(host to controller) (controller to host)
Initial power up ©Copyright 2003, Extron Electronics, MVC 121, V 1.00 Turn input on/off (unmute/mute)
Turn input on/off
X2
*
X3
!In
X2
*
X3
Set input
X2
to
X3
where
X3
= 0/off, 1/on, 2/
mute by contact closure. An input, while muted by contact closure, is not affected by SIS commands or front panel operations.
See Note below.
View input on/off status
X2
!
X3
Show the status
X3
of input
X2
where the status
is 0/off or 1/on or 2/mute by contact closure.
Turn Master Output on/off
Turn output on/off 4*
X3
! Out4*
X3
Set output to
X3
where
X3
= 0/off or 1/on.
View output on/off status 4!
X3
Show the status
X3
of master output where the
status is 0/off or 1/on.
There are three ways to determine if an input has been muted by contact closure: 1. The unsolicited response In
X2
*2 is sent following contact closure mute.
2. Querying the status using the
X2
! command results in the 2 response.
3. Sending the
X2
*
X3
! command results in the E14 error message response.
After an input is no longer muted, the input will be restored back to the settings that were in effect prior to the mute, including volume gain control and input on/off status.