Grass Valley Trinix v.2.4.1 - Manual (Page 137)

Output Monitoring
Planning and Installation Manual 137
Output Monitoring
Output monitoring allows verification of switcher performance
without interrupting normal operations. A separate internal switching
system is used to switch the Monitor Output to any output of the
switcher.
Using a control panel, the operator picks an output as usual—in this
case, the Monitor Output. The operator then selects an input, but this
input is actually one of the switcher outputs.
With the DV-33128 and DV-33256 chassis, two pairs of output monitor
ports are provided by the NR-33000 board (one side of each pair is
inverted). Two additional dual ports are optionally available when a
second NR-33000 is added; this would provide a total of four monitor
ports.
With the DV-33512 chassis, the SR-33500 Sync/OPM board provides
four monitoring ports.
For configurations that require multiple chassis, the monitor signals are
brought through a PE-33016 Port Expander used as a combiner (see
page 144 ).
Examples of basic monitoring connections are shown below.