Service manual

Trinix NXT — Installation and Service Manual 189
Duplication and Expansion
Note Use the PE33016 Port expander for HD operations and the PE2x2-3G Port
expander for 3G operations.
The necessary gain increase is accomplished by one of the following:
1. Closing the rear-panel Input Expand DIP switch.
For the location of this switch, see:
• Figure 63 on page 136 [128 x 128]
• Figure 4 on page 43 [256 x 256]
• Figure 8 on page 47 [512 x 512]
• Figure 14 on page 51 [256x512]
2. Setting the output board jumpers (or DIP switches) to the Expand Enable
position (as shown on
Figure 105).
Restricted Input Expansion
In the case of Restricted Input Expansion, one or more output blocks are not
combined and are therefore not boosted. For example, in the system shown
in
Figure 104, Outputs 1-16 of Frame 0 are not combined (and therefore are
restricted to inputs 1-512).
Figure 104.
Note Use the PE33016 Port expander for HD operations and the PE2x2-3G Port
expander for 3G operations.
Frame 0
Trinix
512 x 512
17 - 512
1 - 512
513 - 1024
17 - 512
Dual outputs
32
port expan-
ders
used as
combiners
Inputs expanded
to 1024 (restricted)
1 - 512
Trinix
512 x 512
Frame 1
1 - 16