GRASS VALLEY APEX -, Installation And Service Manual

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APEX — Installation and Service Manual 51
Facility Interface
Single Video Reference – Redundant Operation
In this arrangement ( Figure 17 ), the same video reference is brought to the
Primary and Secondary Matrix boards. If the Primary board fails the
system will switch automatically to the Secondary board.
The system will detect that the same reference signal is connected to both
inputs and automatically combine Sync Bus 0 with Sync Bus 2.
When configuring the output boards, only Bus 0 is a valid selection.
Figure 17. Single Video Reference – Redundant Operation
House Video Reference (used for AES sync)
AES REF A
VID REF A
AES REF B
VID REF B
All input and output
board(s) on
Video Ref
These connections require
Matrix board B to be present
0
Binary ID used for assigning
reference to input and output board
with XPT board DIP switch
To next Apex chassis (or terminate)