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JA95-091 Audio Controller - Dual ICS Input
Installation and Operating Manual
Rev A
Page 21
(10)
PA Legend
This is a customizable legend to mark the
PA position for the transmit selector.
The interchangeability allows an appropriate name for
this legend to be selected.
(11)
VOX Threshold Control
This is a rotary knob that is used to select the VOX
threshold of the unit. See
below.
When rotated fully clockwise (cw), the threshold will
be at maximum and VOX ICS operation is disabled
and ICS PTT input is required for ICS operation.
When rotated fully counterclockwise (ccw), the
threshold will be at minimum (almost live).
To adjust the unit for
VOX
(Voice activated) use, the VOX control should be set fully ccw and then slowly rotated cw to
the point where no intercom audio can be heard. The VOX control should be adjusted for proper operation according
to the ambient noise.
(12)
CALL Annunciator
This is a customizable deadfront annunciator
activated by an external switch.
When enabled, it will illuminate when a
ground is applied to the CALL input from
another user’s audio controller or by a remote
‘call’ button within the aircraft.
Note
: Check with your installing agency for confirmation of the operation of this annunciator. The legends
are interchangeable to allow customization.
(13)
ICS Volume Control
This is a rotary control used to adjust the volume
of all ICS audio to suit the ambient conditions.
Rotating the control completely cw gives rated
level, and completely ccw reduces the output to
minimum level.