A. System Function
- The Audio Integrating System (AIS) gives the flight crew control of all the audio signals and the system interfaces to the:
- VHF communications system (Ref. 23-11-00)
- Dual HF System (Ref. 23-12-00)
- Cabin Audio System (CAS) (Ref. 23-31-00)
- Interphone System (INT) (Ref. 23-40-00)
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The AIS also lets the flight crew monitor audio signals from the:
- Audio Warning System (AWS) (Ref. 31-52-00)
- Ground-Proximity Warning System (GPWS) (Ref. 34-43-00)
- Traffic Collision and Avoidance System (TCAS) (Ref. 34-44-00)
- Integrated Navigation Units (Nav Units) (Ref. 34-51-00)
B. System ComponentsThe primary components of the AIS are the:
- Six Audio Control Panels (ACP) (Ref. Fig. 3)
- Six Press-To-Transmit (PTT) switches (Ref. Fig. 2)
- Thirteen headset jack sockets
- Six ANC headset sockets
- Six ANC headset sockets
- Mission console speaker (Ref. Fig. 1)
- Two flight compartment speakers (Ref. Fig. 1)
C. System OperationThe AIS send audio signals to the flight crew headphones and the flight compartment speakers from the:
- Integrated Communications Units (Comms Unit) (Ref. 23-11-00)
- Nav Units
- CAS
- GPWS
- TCAS