Garmin GIA 6300 Installatie-informatie - Pagina 9
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5.4.6 Summed Audio Output
The GIA 6300 has a summed audio output suitable for driving a CVR input. When in hardware failsafe,
the COM is hardwired to the Summed output.
5.4.7 Speaker Output
The GIA 6300 has two speaker outputs to support mid-sized aircraft that need one or two additional PA
speakers in the cabin area but do not need the flexibility or output capabilities of a full IFE or passenger
address system. Both speaker outputs will be capable of outputting 10W into a 4-ohm load and 5W into
an 8-ohm load.
5.4.8 External RF Interfaces
The GIA 6300 has 5 separate RF interfaces:
•
VHF COM RF In/Out,
•
VLOC RF In,
•
Glideslope RF In,
•
GPS/SBAS RF In, and
•
Marker Beacon RF In
6 Power
The Main A, Main B, COM, and Audio Boards will all have separate, independent power supplies with
separate Power connections on the external connector. NAV and GPS are powered by the 2 Main
Boards.
The GIA 6300 is only intended for use in 28V systems, but will be required to remain "online" down to
10 V
for 60 seconds during engine start conditions. The power supplies will be designed to allow the
DC
units to remain fully functional with minimal exceptions
The Main A, Main B, Audio, NAV, and COM boards will have 200 ms of backup power provided by
independent banks of capacitors. Some loads and circuitry on the these boards may be shed during a
power interrupt and the COM will not transmit in order to conserve back-up power and reduce the
physical size of the capacitor banks. The backup power is only intended to ensure a short power
interruption is transparent to the rest of the system.
Function
COM
AM Rx
AM Tx
VLD Mode 2 Rx
VDL Mode 2 Tx
1
Main A
1
Main B
Audio
Note 1: Main A and Main B share the responsibility of powering the navigation and GPS receivers.
Typical power consumptions numbers assumed shared loading while maximum numbers assuming a
single board is powering all radios.
190-01561-00
Draft1
Connector
Pins
Typical Current
Max Current
@ 28V
@ 28 V
0.37 A
2.5 A
3.6A (3:1 VSWR)
0.5 A
3.8 A
5.0A (3:1 VSWR)
1.5 A
3.25 A
1.5 A
3.25 A
0.3 A
1.2 A
GIA 6300 Installation Manual
Page 9