Transceiver Interfaces; Receiver And Alert Inputs; Headset Outputs And Microphone Inputs; Aes3 Interface - Garmin GIA 6300 Installation Information

Speaker Outputs

5.4.1 Transceiver Interfaces

The GIA 6300 supports a total of 8 radio transceivers including the internal VHF COM radio. One of
these interfaces is used to connect to the cross-side GIA 6300 VHF COM.
Four transceiver inputs can be configured as microphone inputs. This allows a total of 8 passenger or
support staff positions per GIA 6300. In cases where both 8 passenger microphones and 8 transceivers
are required, some of the receiver and alert inputs can be repurposed as transceiver inputs.

5.4.2 Receiver and Alert Inputs

The GIA 6300 has a total of 11 differential audio inputs. These can be used as either un-switched, alert
inputs or as inputs from radio receivers. Two of these inputs are used to interface from the cross-side
GIA 6300 NAV radio and Alert Output.
With the division list in Table XXX, the GIA 6300 will be capable of supporting up to 8 receiver inputs
including the integrated NAV radio.

5.4.3 Headset Outputs and Microphone Inputs

The GIA 6300 will be capable of supporting 2 crew members and 4 or 8 passenger headset locations per
unit. This is facilitated with 2 headset-microphone crew locations and a two passenger headset outputs
with 4 microphone locations (and the 4 configurable Transceiver/Microphone inputs).
The Pilot Headset and Microphone interface has a hardware failsafe connection to the integrated VHF
COM. When in hardware failsafe, the Pilot microphone input will be hardwired through relays to the
COM input and the COM output will be hardwired through relays to the Pilot Left Headset output.
Each of the passenger headset output is capable of driving 4 stereo headsets in parallel. If desired, the
output can be configured as two mono channels allowing 2 groups of passengers to receive separate,
mono selected audio sources per output. The total number of passengers supported by the GIA 6300 is
limited by microphone inputs, 8.

5.4.4 AES3 Interface

The GIA 6300 has 2, digital, AES3 interfaces (primary and secondary). The primary AES3 interface
implements carries ICS, communication, and navigation related audio between GIAs.
The secondary AES3 interface can be used to carry high fidelity music audio. This secondary interface
will be configurable to either carry 8 (4 stereo) high fidelity channels, or 24 low fidelity channels (just like
the primary AES3 interface).
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