Barco FSN Series User Manual page 280

7. Operations
Understanding the T-Bar and Transition LEDs
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This section describes the functionality of the T-Bar and Transition LEDs , which are
identical for the M/E and PGM banks.
Transition
Figure 7-10. T-Bar and Transition LEDs
The T-Bar provides manual transition control for the layers enabled in the Next Transition
Group . For both manual and automatic transitions, the Transition LEDs indicate the
position of the transition in progress.
The following topics are discussed in this section:
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When a manual transition is performed, the T-Bar controls the transition direction — away
from (or back towards) the end-limit.
Please note:
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This section provides information about automatic transitions, and their flexibility. Please
note the following important points:
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280
LEDs
Manual Transitions
Automatic Transitions
Physical and Virtual T-Bar Position
Transition LED Notes
In general, when the T-Bar is resting at either the top or bottom limit and all
Transition LEDs are off, the bank's output is full BG (or PGM ) bus, and the
various key layers are completely on or off.
From either limit (when BG is armed), moving the T-Bar always transitions from
the BG (or PGM ) bus towards the PST bus.
When the T-Bar is manually moved, the Transition LEDs always move in the
same direction as T-Bar movement. The LEDs indicate the transition's position
between the BG (or PGM ) and PST .
When an automatic transition is performed, the Transition LEDs indicate the
transition's position, but the direction is always towards the PST bus.
T-Bar
FSN Series • User's Guide