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ICS CALL Annunciator
(11)
This is a customizable deadfront annunciator activated by an
external switch.
When enabled, it will illuminate when a ground is applied to the
ICS 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.
ICS Volume Control
(12)
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.
3.3
Normal Operation Mode
Note: Numbers in parentheses refer to the front panel controls shown in section 3.2.
The JA95-043 is in Normal mode when the front panel EMER / NORM switch (4) is in the NORM position and suitable
electrical power is supplied to the unit.
3.3.1
Panel Lighting
The legends and annunciators will be illuminated (when appropriate) and dim through the aircraft lighting buss.
3.3.2
Receiving
When the JA95-043 receives an incoming transmission on a transceiver or receiver that has been selected, either by the
white transceiver receive switches (1) or the transmit selector (8), the incoming audio will be directed to the user's phones.
The audio level of any incoming transmission will depend upon the level selected by the front panel RX volume control (3).
It will be muted if the unit is transmitting and muting of receive audio during transmit is enabled.
3.3.3
Transmitting (Transmit Operation)
To select a transceiver, rotate the Transmit Select Switch until it aligns with the line leading to the Transceiver Select
switch legend (see 1) - default legends COM1, COM2, AUX, FM1, FM2, or PA. The corresponding Transmit Select
annunciator will illuminate.
When the user's TX PTT is activated, the unit will transmit on the selected transceiver, and the deadfront Transmit
Annunciator (7) will illuminate 'TX'. All MIC and sidetone audio will be routed to the user's phones, and any music will be
muted for the duration of the transmission.
Rev B
JA95-043 Audio Controller - AMS43 Compatible
Installation and Operating Manual
Page 19
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