Grass Valley Trinix NXT v.3.3.1 - Manual (Page 188)

188 Trinix NXT — Installation and Service Manual
Section 3 — Hardware Installation
In this example:
• For SO-33110/33011, HO-3G, and HO-33110/33011 output
boards, the gain for outputs 1-16 would be boosted by closing
the rear-panel Input Expand DIP switch and verifying that the
on-board jumper
for that set of outputs is in the Expand Enable
position. The gain for outputs 17-256 must be held at unity by
setting the on-board jumpers for that set of outputs to the Force
Normal position; this overrides the rear-panel DIP switch setting
for those outputs.
• For HO-33120/33121 output boards, the gain for outputs 1-16
would be boosted by closing the rear-panel Input Expand DIP
switch and verifying that the on-board DIP switch for those
outputs is closed. The gain for outputs 17-256 must be held at
unity by opening the on-board DIP switches for that set of out-
puts; this will override the rear-panel DIP switch setting for
those outputs.
Input Expansion
Input expansion requires output combiners and output gain increase.
Full Frame Input Expansion
In this arrangement, all outputs are combined and must therefore be
boosted. For example, in the system shown in
Figure 103 , Output 1 of
Frame 0 would be combined with Output 1 of Frame 1; Output 2 of Frame
0 would be combined with Output 2 of Frame 1, etc.
Figure 103.
Frame 0
Trinix
512 x 512
1 - 512
1 - 512
513 - 1024
1 - 512
Dual outputs
32
PE 33016
used as
combiners
Inputs expanded
to 1024
1 - 512
Trinix
512 x 512
Frame 1