Becker Avionics
Operation
Intercom Operation Mode
DV64440.03 Issue 09 November 2019
ACU6100
55
Isolated / Call Function - Cabin
Isolated / Call Function - Cabin
ISOL/CALL key
In the cabin the key "ISOL/CALL" is used to send a - call for connection - to the
cockpit circuit if the intercom circuits are disconnected (isolated).
•
Push to the key "ISOL/CALL".
o
A call for connection is sent to the cockpit circuit.
o
The LED "ISOL/CALL" flashes.
•
A member of the cockpit circuit can accept the call and can connect the
cabin circuit with a push to the key "ISOL/CALL".
NOTICE:
•
LED on:
o
Cockpit and cabin intercom circuits are disconnected (isolated).
•
LED off:
o
Cockpit and cabin intercom circuits are connected.
•
LED flashes:
o
A call was sent.
o
The system is in call mode.
o
A call tone is audible in the cockpit (depends on configuration).
•
If the intercom circuits are connected, the key "ISOL/CALL" on the cabin
devices have no function.
For some special mission profiles also the cabin circuit members must be able to
disconnect the cockpit and the cabin circuit (depends on configuration).
•
The cabin circuit members can only disconnect the intercom circuits.
•
Only a cockpit circuit member can connect the circuits.
Emergency Call (E-Call)
A call for connection can be a "Call" or an "Emergency Call" (E-Call).
To send an E-Call, an external emergency switch is necessary.
•
Push the external E-Call key.
•
The "ISOL/CALL" LED flashes with the double frequency of the "Call" notification.
•
An E-Call tone, different to the "Call" tone is audible in the cockpit (depends on
configuration).
3.8 Intercom Operation Mode
Ways to start the intercommunication between the users:
•
Voice controlled (VOX).
•
Intercom with PTT-IC (on rotary wing panel).
•
External PTT switch controlled.
