23-51-00  AUDIO INTEGRATING SYSTEM Back

A. System Function

1. 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)
2. 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 Components

The 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 Operation

The 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