Grass Valley Trinix v.2.4.1 User Manual
Page 57
Duplication and Expansion
Planning and Installation Manual
57
Now consider Output 1 of Frame 0. This signal is connected to Input 1A
of the first PE-33016 Port Expander. See
Figure 27. Detail of one PE-33016 shown in
.
In this example:
• Only Input 1A and Output 1A are presently functional.
• Following the rule that unused connectors should be terminated,
Output 1B is fitted with a 75 ohm BNC terminator.
• Input 1B is pre-wired to Frame 1, so there is no place for a termi-
nator. In this case, termination will be provided by an LD-33100
Loader board installed in output board slot “1-32” of Frame 0. Fur-
thermore, in this example all 16 output slots of Frame 0 should have
an LD-33000 installed.
• When the system is upgraded to 1024 x 512, the LD-33000 boards
will be removed and replaced by output boards. Cabling to the port
expanders is already in place.
The concepts in this example apply equally to 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
, where LD-33100 Loader boards would be installed
in place of output boards in Frames 4 through 7).
Input 1B - from Frame 1 Output 1.
Input 1A - from Frame 0 Output 1
Output 1A - to downstream equipment
Output 1B - not used. Termination provided by
Termination provided by LD-33000
75 ohm BNC terminator
in upstream Trinix frame.