4-9ISS 408 Integration Seamless Switcher • Programmer’s Guide

Command/response table for SIS commands
Command ASCII Command Response Additional description
(host to switcher) (switcher to host)
Input selection

You can select an input for either output (preview or program) using SIS commands.

Select video and audio
X
2
*
X
1
! Out
X
2
•In
X
1
•All Select input
X
1
to
X
2
output.
Example: 1*2! Out1•In2•All Input 2 video and audio selected
to program output.
Select video only
X
2
*
X
1
& Out
X
2
•In
X
1
•RGB Select video input
X
1
to
X
2
output.
Example: 2*5& Out2•In5•RGB Input 5 video only selected to
preview output.
Select audio only
X
2
*
X
1
$ Out
X
2
•In
X
1
•Aud Select audio input
X
1
to
X
2
output.
View video only
X
2
&
X
1
Video input
X
1
is tied to
X
2
output.
View audio only
X
2
$
X
1
Audio input
X
1
is tied to
X
2
output.
Take (switch preview output to program output)

The cut or dissolve effect is determined by the Switching Effect, X29 (0 = cut, 1 = dissolve) *4#

command. See “Command/Response Table for Special Function SIS Commands”.

The preview switch mode, stay or swap, determines the preview output after the take command.

•In stay mode, the preview output remains unchanged (both outputs share the same input).

•In swap mode, the program output switches to the preview output (the two outputs swap inputs).

Switch video and audio % Tke0 Switch preview video and audio
output to the program output.
Switch video only 1% Tke1 Switch preview video output to
the program output.
Switch audio only 2% Tke2 Switch preview audio output to
the program output.

The response (Tke0 , Tke1 , or Tke2 ) indicates that the switcher has received and is responding

to the “Take” command. A larger series of switcher-initiated messages follows the Tke response

during a cut or dissolve operation. The following two examples show the sequence of responses to a

“Take” command in stay and swap mode. See Busy (cut and dissolve) earlier in this chapter for

more details about the responses after the Tke response.

Example (stay mode): % Tke0 Take command.
Bsy1 Busy.
Out1•In
X
1
•All Switch input to program scaler.
Bsy0 Clear busy.
Example (swap mode): 1% Tke1 Take command.
Bsy1 Busy.
Out1•In
X
1
•All Switch input to program scaler.
Out2•In
X
1
•All Switch input to preview scaler.
Bsy0 Clear busy.
Video mute
Video mute on
X
2
*1B
X
2
Vmt
X
3
Set the
X
2
video output to black.
Video mute off
X
2
*0B
X
2
Vmt
X
3
Set the
X
2
video output to the
selected input 1 through 8.
View video mute status
X
2
B
X
3
Video mute is
X
3
for
X
2
output.