Grass Valley Kayenne Installation Planning Guide Aug 30 2011 - Manual (Page 61)

KAYENNE — Installation Planning Guide 61
Video Processor Frame GPI/Tally Interface
that are active depends on the number of ME boards installed in the
chassis. Twelve outputs are active for every board installed.
MatchDef and SetDef Format Conversion
The four highest numbered input connectors associated with each installed
ME board can be used with the optional MatchDef format conversion
feature (inputs 21-24, 45-48, 69-72, 93-96). The two highest numbered
output connectors associated with each installed ME board can be used
with the optional SetDef format conversion feature (outputs 11-12, 23-24,
35-36, 47-48). 525, 625, 1080i and 720p line rate signal format conversion is
supported.
Reference Input
The Kayenne Video Processor Frame has two separate, looping reference
input pairs. The upper pair accepts analog 525 or 625 composite video.
Burst is not required, but typically facility reference color black is used.
Kayenne can auto-sense whether the reference is 525 or 625 and can change
the internal standard accordingly. The lower looping reference input pair is
for HD production and uses analog tri-level sync.
75-ohm termination of one of each of these looping inputs is required,
either directly on the adjacent connector or at the end of a daisy chain
looping to other equipment. Any one of the SDI inputs can also be used
temporarily as reference in the respective standard.
CAUTION Kayenne HD operation requires tri-level sync. Using an HD SDI source for
sync purposes is not recommended, except for temporary troubleshooting.
Video Processor Frame GPI/Tally Interface
The GPI (General Purpose Interface) and tally interface provides a means
to transfer commands to and from the switcher to external customer pro-
vided equipment. A one wire per function parallel hardware relay mecha-
nism is used. The nominal contact rating specification for each relay is 1A,
60 V.
Note A serial tally interface that communicates with third party devices over a
Video Processor Frame RS422 connector is also available. Refer to the sep-
arate Switcher Products Protocols Manual for specific information.