Grass Valley Trinix v.2.4.1 - Manual (Page 58)

Planning Guide
58 Planning and Installation Manual
Output Expansion
Similarly, LD-33100 Loader boards may also be used for output-
expandable systems. For example, Figure 28 shows a 512 x 512 system
expandable to 512 x 1024:
Figure 28.
Again, considering one signal path ( Figure 29 ), pre-wired cable connec-
tions do not allow for installation of individual terminators. Instead,
LD-33100 Loader boards are installed in the unused frame, but in this
case they are installed in the input slots.
Figure 29. Detail of one PE-33016 shown in Figure 28 .
Input and Output Expansion
The rules just described for use of LD-33100 Loader boards will also
apply to systems designed for expansion of both inputs and outputs.
An example would be a 512 x 512 pre-wired for expansion to 1024 x
1024 (similar to the system shown on page 52 ). Only chassis 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 LDs would be needed for Frame 3.
Trinix
512 x 512
Trinix
512 x 512
1 - 512
1 - 512 1 - 512
32
PE 33016
used as
splitters
Frame 0
Frame 1
(unused)
Installed pre-wiring
Future output
wiring
Input slots should be terminated
using LD-33100 Loader boards
Input 1A - from upstream equipment Output 1A - to Frame 0 Input 1
Input 1B - not used. Termination
provided by 75 ohm BNC terminator
Output 1B - to Frame 1 Input 1.
Termination provided by LD-33100
in Frame 1.