Serial Communications, cont’d
IN1508 Scaling Presentation Switcher • Serial Communications4-6
Command/response table for SIS commands (cont’d)
Command ASCII Command Response Additional description
(host to switcher) (switcher to host)
Pixel phase
Set a pixel phase value X11U Phs
X11
Example: 6U Phs6 Use a pixel phase setting of 6.
Increment pixel phase value +U Phs
X11
Increase the pixel phase setting.
Decrement pixel phase value –U Phs
X11
Decrease the pixel phase setting.
View the pixel phase value U Phs
X11
Pixel phase value is X11 .
Freeze
Enable freeze 1F Frz1 Output a “frozen” video image.
Disable freeze 0F Frz0 Turn off freeze (output motion
video).
View the freeze status F Frz
X
4
Show the freeze status.
Example: F Frz0 Freeze mode is off.
Zoom
Zoom in +{ Zom Zoom in on the video image.
Zoom out –{ Zom Zoom out from the video image.
Audio gain and attenuation
The SIS commands for setting audio gain and attenuation are case sensitive. “G” sets gain and “g”
sets attenuation. Increment, decrement, and view are not case sensitive.
Set gain X12G AudX14 Set gain for the selected input to
X12 dB.
Example: 3G Aud+03 Set gain for the selected input to
3 dB.
Set attenuation X13g Aud X14 Set attenuation for the selected
input to X13 dB.
Example: 15g Aud-15 Set attenuation for the selected
input to -15 dB.
Increment level +G AudX14 Increase the selected input’s
audio level by +1 dB.
Decrement level -G Aud X14 Decrease the selected input’s
audio level by -1 dB.
View audio level G Aud X14 View gain for the selected input.
Example G Aud-03 The IN1508 reports that the
audio level for the selected input
is at -3 dB of attenuation.
Audio output volume
Set the output volume X15VVol
X15
Set the volume for the audio
output.
Increment the output volume +V Vol
X15
Increase the output’s volume
level by 1 step.
Decrement the output volume -V Vol
X15
Decrease the output’s volume
level by 1 step.
View the output volume V Vol
X15
Show the volume level.
Audio delay
Set the audio delay on 1@ Ad1 Delay audio to match the delay
inherent in video scaling.
Set the audio delay off 0@ Ad0
View the audio delay @ Ad
X
4
Example: @ Ad1 Audio delay is on.