Grass Valley Trinix NXT v.3.3.1 - Manual (Page 90)

90 Trinix NXT — Installation and Service Manual
Section 2 — Planning Guide
would be a 512 x 512 pre-wired for expansion to 1024 x 1024 (similar to the
system that is shown in
Figure 37 on page 79 ). Only frame 0 would be
active in the 512 x 512 router, so only the port expanders connected to
Frame 0 would be in use. Frame 1’s inputs are connected to the top left PE;
while Frame 2’s outputs are connected to the top right PE. Therefore Frame
1’s input slots would require LD-33100s and Frame 2’s output slots would
require LD-33100s. No LD boards would be needed for Frame 3.
Monitoring with Expanded Systems
Symmetric Frame
Output monitor signals must be sent through a combiner in expanded sys-
tems. An example of an output-expanded system in shown in
Figure 50 on
page 91 ; an input-expanded system is shown in ( Figure 119 on page 209 ).
Note Output monitoring is not available for input-expanded systems controlled by
an SR-33000 Sync/OPM board.