Grass Valley Trinix NXT v.3.3.1 - Manual (Page 162)

162 Trinix NXT — Installation and Service Manual
Section 3 — Hardware Installation
Frames with Sync Redundant NR Operation
This is an option with the TRX-NXT-128x128, TRX-NXT-256x256, TRX-
NXT-128x256, TRX-NXT-256x512, and the TRX-NXT-512x1024 Routing
switchers.
Figure 82.
For NR-33000 redundant operation, one (or two maximum) sync references
are looped from the Primary to the Secondary boards. If the Primary board
fails, the system will switch automatically to the Secondary board. Note
that in this arrangement, Sync Bus 1 is always combined with Sync Bus 3
and Bus 2 combined with Bus 4. When configuring the output boards, only
Bus 1 and Bus 2 are valid selections.
Jupiter
Sync 1
2 1 Primary NR-33000
Secondary NR-33000
Output
board(s)
on SL1
Output
board(s)
on SL2
Sync Lines
Sync 2
SMS MCPU
Sync 1
or
Encore SCB
OR
Sync
1
T T
4 3
Sync Redundant switch = On