Service manual

Trinix NXT — Installation and Service Manual 167
Sync Reference Connections
TRX-NXT-512x512 with Dual Sync References and Redundant NR
Operation
Figure 86.
In this application, two sync references are looped through the SR-33500,
the Primary NR board, and the Secondary NR board. The NR boards are
operated in redundant mode.
• If the Primary board fails, the system will switch automatically to the
Secondary board.
• If both NR boards are removed, Sync Lines 1 and 2 will automatically
switch to the SR board.
Notice that Sync Line 1 is always combined with Sync Line 3 and Line 2
combined with Line 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
1
2
3
4
SR-33500
Output
board(s)
on SL1
Output
board(s)
on SL2
Sync Lines
Sync 2
SMS MCPU
Sync 1
or
Encore SCB
OR
Sync Redundant switch = On
“C” switch = On
Sync
1
Some TRX-NXT-512x512 power
supply units are not labeled correctly.
See drawing on Figure 68 on page 141
for correct REF IN connector labelling.
4 3
T
T