Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 85)

MAESTRO — Automation Interface Protocol Technical Reference Manual 85
TRAN_PRESET (Preset distributed transition parameters)
Maestro applicability:
Argument definitions:
<board bits> = 00-0F (hex, one byte)
Specifies the Maestro groups affected by the command.
bit 7 - bit 2 = Reserved
bit 1 = All audio groups
bit 0 = Video
Reply format:
The response will contain a reply for the Video Group and/or All Audio Groups requested in the
argument of the query, wrapped within a begin-end construct.
Notes:
If the Transition Duration is 0 then <type> in the reply will be “4 = Fade-Fade“ since the system cannot resolve
this case.