User Guide Owner's manual
4-5
PVS 204SA • Serial Communication
PRELIMINARY
Command/response table for SIS commands
Command  ASCII Command  Response  Additional description
    (host to switcher)  (switcher to host) 
Input selection
Select an input (video and audio)  X! !  Chn X! ] (single sw. mode)  Select input X! (video and audio).
Example:  2!  Chn2 ] (single sw. mode)  Select input 2.
Select an input (video and audio)  X! * X1% !  Chn X1% * X! ! ] (sep. sw. mode) Select input X! 
(composite video).
Example:  1*2!  Chn1*2 ] (sep. sw. mode)  Select input 1 of the composite 
video group.
Select an audio input  X! $  Aud X! ]  Select input X! audio only.
Select a video input (single sw. mode)  X! &  Vid X! ]  Select input X! video only.
Select a video input (sep sw. mode)  X1% * X! &  Vid X1% * X! ]  Select input X! video in group 
X1% only.
Audio gain/attenuation (per input)
N  The set gain (G) and attenuation (g) are case sensitive.
Set a specific input’s gain.  X!*X& G  InX! Aud=X( ]  Set a single input’s gain (in dB).
 Example:  2*9G  In2 Aud=+09 ]  Set input 2’s gain to +9 dB.
Set a specific input’s attenuation
  X!* X* g  In X! Aud= X( ]  Set an input’s attenuation (in dB).
Example:  1*12g  In1 Aud=-12 ]  Set attenuation to -12 dB.
N  Aux/Mix input is input 7.
Increment a specific input’s gain  X!*+G  In X! Aud= X( ]  Increase an input’s gain by 1 dB.
Decrement a specific input’s gain  X!*-G  In X! Aud= X( ]  Decrease an input’s gain by 1 dB.
View a specic input’s gain  X!*G  In X! Aud= X( ]  Show an input’s audio level.
Set the current input’s gain  X& G  In X! Aud= X( ]  Set the current input’s gain (in dB).
Set the current input’s attenuation  X* g  In X! Aud= X( ]  Set the current attenuation 
(in dB).
Increment the current input’s gain  +G  In X! Aud= X( ]  Increase the gain by 1 dB.
Decrement the current input’s gain  -G  In X! Aud= X( ]  Decrease the gain by 1 dB.
View the current input’s audio gain  G  In X! Aud= X( ]  Show the audio level.
Audio treble adjustment (applies to inputs 1-4)
N  Treble and bass are strictly global commands. They will only adjust twisted pair audio signals, not Aux/Mix signals.
Set the treble level  X$ >  Trb=X% ]  Set the global treble level.
Example:  2>  Trb=-7.5 ]  Set treble to -7.5 dB.
Increment the treble level  + >  Trb=X% ]  Increase the treble by 1.5 dB.
Decrement the treble level  – >  Trb=X% ]  Decrease the treble by 1.5 dB.
View the treble level  >  Trb=X% ]  Show the current treble level.
Audio bass adjustment (applies to inputs 1-4)
N  Treble and bass are strictly global commands. They will adjust only twisted pair audio signals, not Aux/Mix signals.
Set the bass level  X$ <  Bas=X% ]  Set the global bass level.
Example:  10<  Bas=+4.5 ]  Set the bass to +4.5 dB.
Increment the bass level  + <  Bas=X% ]  Increase the bass by 1.5 dB.
Decrement the bass level  – <  Bas=X% ]  Decrease the bass by 1.5 dB.
View the bass level  <  Bas=X% ]  Show the current bass level.
Audio mute
Mute on  1Z  Amt X# ]  Mute audio output.
Mute off  0Z  Amt X# ]  Unmute audio output.
View the audio mute status  Z  Amt X# ]  Show the status of audio mute 
0= off, 1 = on.










