
T400 Controller Facilities Manual
667/EB/20200/000 Page 2-7 Issue 9
The Awaiting New Command lamp will only illuminate when all phase minimums on
all streams have expired and consequently allow further moves to be made using the
Manual Buttons.
A change is accepted as valid even if only one of the stage streams changes.
The Manual Panel indicators illuminate when the stage that is configured to the
corresponding button is active.
For parallel Stage Streams the buttons can be configured to call combinations of stages
in the individual streams and the LEDs illuminate when the combinations configured to
the corresponding buttons are active. The indicators illuminate in VA and fixed time
mode as well as manual mode and irrespective of whether the handset is plugged in.
Manual Step-On:-
If fitted, the Controller will step on to the next stage, or combination of stages, on the
operation of a pushbutton. See also section 9.7.
2.6.4(e) Hurry Call
2 Hurry Call units are available, numbered 0 and 1, and they may be allocated to any
stage on any stream.
If they are both allocated to different stages but in the same stream, they will be
actioned on the basis of Hurry Call 0 being of higher priority than Hurry Call 1.
However, if they are allocated to different stages but in different streams, they can both
be actioned simultaneously, neither having precedence over the other or affecting each
other in any way.
2.6.4(f) Priority and Emergency Vehicle
Each stream will move around its own stages according to its own Priority or
Emergency Vehicle demands and extensions independent of any other streams.
2.6.4(g) UTC
UTC mode can be active on any or all of the streams. If there are force bits present on
any stream then the UTC active lamp will illuminate on the manual panel. Each stream
can respond to its force bits independently of the other streams. If, however, it is
required to have Master-Master UTC Linking, i.e. for UTC mode to operate on any
stream, force bits are required to be present for all streams, then the UTC mode may
be disabled on the relevant streams by Special Conditioning until the correct force bits
are available.
2.6.4(h) Part Time (see also Para. 2.6.3)
The Part Time switch off mode, when requested, will apply simultaneously to all
streams.
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