Grass Valley M-2100 - Manual (Page 32)

2-8 MMCP Installation/Operation Manual
Section 2 — System Operations
Program and Preset Bus Operations
Preset Bus
The Preset bus (PST) ( Figure 2-4 ) is a row of eight source select crosspoint
buttons. Each crosspoint button may be mapped to an input source from
the rear of the Processor frame. The crosspoint buttons are initially config-
ured at the factory so that the sources are associated in ascending numeric
order from left to right. The left-most button corresponds to Source 1; the
right-most button corresponds to Source 8. This order may be changed in
the
Main Sources form, under PGM/PST/Aux Sources tab in Configuration Man-
ager.
The crosspoint buttons can be mapped to any input source desired. It is not
necessary to map Crosspoint 1 to Source 1, for example, it may be assigned
to any of the sources. Each source consists of video and like-numbered
audio inputs. For instance, video at input 1, and all audio connections to
input 1 (from one to four channels), are all part of the same source, Source 1.
Figure 2-4. Program (PGM) and Preset (PST) Buses
Selecting Preset Sources
PST buttons can select main audio/video (married) sources and/or sources
for Audio Processor Modules 1–4. To select a Preset source, do the fol-
lowing:
1. Press the PST button corresponding to the desired source.
The selected PST button lights at high tally, indicating that it is the
source of both video and audio signals. All other PST buttons go dark.
2. If Next transition Bkgd tallies high, the selected Preset source will be output
on the Look Ahead Preview (LAP) output.
PGM
PST
1
1
PROGSRC1 PROGSRC3 PROGSRC5 PROGSRC7
PROGSRC2 PROGSRC4 PROGSRC6 PROGSRC8
2 3 4 5 6 7 8
2 3 4 5 6 7 8
V A
V A
Non Sync
Non Sync
Video
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