Programmer’s Guide, cont’d

Integration Seamless Switcher • Programmer’s Guide4-4

Switcher-Initiated Messages
When a local event such as power-up or a front panel operation occurs, the
switcher responds by sending a message to the host. The switcher-initiated
messages are listed in the following pages. The messages are underlined.
The switcher does not expect a response from the host, but the host program may
request a new status.

Power-up

(c) Copyright 2002, Extron Electronics, ISS 408 Vx.xx
The copyright message is initiated by the switcher when it is first powered on.
Vx.xx is the firmware version number.

Input selection

Out
X2
•In
X1
•All
A front panel video and audio switching, cut, or dissolve operation has occurred.
X2
is the output number and
X1
is the input number.
Out
X2
•In
X1
•RGB
A front panel video-only switching, cut, or dissolve operation has occurred.
X2
is
the output number and
X1
is the input number.
Out
X2
•In
X1
•Aud
A front panel audio-only switching, cut, or dissolve operation has occurred.
X2
is
the output number and
X1
is the input number.

Busy (cut and dissolve)

Bsy
X3
A cut or dissolve operation has been initiated or completed and the switcher is
reporting its busy status (
X3
). After the switcher has reported that it is busy
(Bsy1 ), it ignores all SIS commands until it completes the operation and reports
that it is no longer busy (Bsy0 ).

Cutting or dissolving in stay mode

The switcher issues the following reports when you switch the input that is applied
to the preview output to the program output in stay mode:
The sequence of commands may vary, but you should see all of the listed
commands.
Tke
X4
(SIS operation response only) The
switcher has received the SIS “Take” (%)
command.
Bsy1 The switcher is busy and will not respond
to any SIS commands.
Out1•In
X1
•All (or RGB or Aud) The input to the program output has
changed (to the input that had been
switched to preview output).
Bsy0 The switcher is no longer busy and is able
to respond to SIS commands.