Grass Valley Trinix NXT v.3.3.1 - Manual (Page 89)

Trinix NXT — Installation and Service Manual 89
Duplication and Expansion
The concepts in this example can be applied equally to both HD and SD
systems with PE-33008 Port expanders. For example, they would apply to
a 1024 x 1024 system that is pre-wired for expansion to 2048 x 1024 (similar
to the system shown in
Figure 37 on page 79 , where LD-33100 Loader
boards would be installed in place of output boards in Frames 4 through 7).
Output Expansion
The LD-33100 Loader boards may also be used for output-expandable sys-
tems. For example,
Figure 48 on page 89 , below shows a 512 x 512 system
expandable to 512 x 1024:
Figure 48. A 512 X 512 System Expanded to 512 x 1024
Again, considering one signal path (below in Figure 49 ), pre-wired cable
connections do not allow for installation of individual terminators. Instead,
the LD-33100 Loader boards are installed in the unused frame. However, in
this case they are installed in the input slots.
Figure 49. Detail of one PE-33016 shown above in Figure 48
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
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.