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
X11
U Phs
Example: 6U Phs6 Use a pixel phase setting of 6.
Increment pixel phase value +U Phs
Increase the pixel phase setting.
Decrement pixel phase value –U Phs
Decrease the pixel phase setting.
View the pixel phase value U Phs
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
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
X12
G Aud
X14
Set gain for the selected input to
X12
dB.
Example: 3G Aud+03 Set gain for the selected input to
3 dB.
Set attenuation
X13
g 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 Aud
X14
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
X15
VVol
Set the volume for the audio
output.
Increment the output volume +V Vol
Increase the output’s volume
level by 1 step.
Decrement the output volume -V Vol
Decrease the output’s volume
level by 1 step.
View the output volume V Vol
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
Example: @ Ad1 Audio delay is on.
