Grass Valley Trinix NXT v.3.3.1 - Manual (Page 186)

186 Trinix NXT — Installation and Service Manual
Section 3 — Hardware Installation
Duplication and Expansion
Trinix routing switchers are designed to duplicate/expand inputs and
outputs using passive splitter/combiner expansion panels. Whenever an
expansion panel is connected, signal gain must be increased to compensate
for the added circuitry.
In addition, unused connectors should be terminated for optimum perfor-
mance.
Note For Jupiter-controlled (0-based) systems, the input/output numbers should
be decreased by one (1). For example, block 1-256 should be understood as
block 0-255.
Frame numbers are determined by the input/output blocks served by the
particular frame. For example, a TRX-NXT-256x256 router’s input block 1-
256 and output block 1-256 must be connected to frame zero. For more
information about frame numbering, see Frame Number Settings
on page 212 .
Output Duplication
Output duplication (dual/quad outputs) requires output splitters and
output gain increase.
Full Frame Output Duplication
In this arrangement, all outputs from a given frame are duplicated and
must therefore be boosted. See
Figure 101 for an example. The PE33016 Port
expander is used as an example in the following figures . Use the PE33016
Port expander for HD operations and the PE2x2-3G Port expander for 3G
operations.
Figure 101.
Trinix
256x256
0 -255 0 - 255
0 -255
Dual outputs
16
PE 33016
used as
splitters