Grass Valley Karrera Video Production Center v.4.0 - Manual (Page 155)

KARRERA — User Manual 155
Bus Linking
Source Override
Holding down a source select button on a Linked bus prevents that bus
from changing its sources when Controlling bus source selections change.
Bus Pair Rules
Karrera source selection buses can operate in pairs. ME keyer buses operate
in video fill/key cut mode. Aux buses can be configured in pairs, either as
video fill/key cut or as video/video for external DPMs. When a bus pair is
involved in bus linking, the following rules apply:
• Key cut selections on video fill/key cut bus pairs does not affect the key
cut source on a linked bus (split key cut selections don’t link).
• The fill/A side of the Controlling bus is always sent to the fill/A side of
the Linked bus.
• If the Controlling bus is in video/video mode, the B side selection will
be sent to the Linked bus.
• If the Linked bus is in video-video mode, a B side source change from
the Controlling bus will change the Linked bus's B side.
A video only bus behaves as if it is the A side of a bus pair.