Garmin G1000 Nxi System Maintenance Manual page 25

GIA 63W Integrated Avionics Unit (2)
Two Garmin GIA 63W Integrated Avionics Units (IAUs) contain the VHF COM/NAV receivers,
WAAS GPS receiver, Flight Director, and system integration microprocessors. The GIAs also
serve as a communication interface to all other G1000 LRUs in the system. Each GIA 63W
communicates directly with the on-side GDU 1050A display using a HSDB Ethernet connection.
Both GIAs are located remotely in the nose equipment bay.
GIA 1 receives primary electrical power from No. 1 Triple Fed Bus and a secondary electrical
power supply from Center Bus. GIA 2 receives electrical power from No. 3 Triple Fed Bus. The
GIA 1's COM power supply (COM 1) is provided by No. 1 Triple Fed Bus. GIA 2's COM power
supply (COM 2) is provided by No. 3 Triple Fed Bus. Therefore, both GIAs power-up
immediately with external or aircraft power or battery operation.
Both GIA 63Ws interface to the following equipment:
•
Existing VOR/LOC/Glideslope Antenna System
•
Existing VHF COM #1 & #2 Antennas
•
GA 36 and GA 37 GPS/WAAS Antennas
•
GMA 1347D, #1 & #2
•
GEA 71, #1 & #2
•
GSA 80 and GSA 9000 Servo Motors
•
GRS 77 or GRS 7800, #1 & #2
and a
GDC 7400 #1 & # 2
•
A429 Interface Traffic Systems (if installed)
The GIA 63W #1 interfaces to the following additional equipment:
•
GTX 33( )#1, GTX 3000 #1, GTX 345R #1, or GTX 335R#1
•
DME 42 (if installed)
•
GSR 56 (if installed per stand-alone configuration)
•
GDU 1050A #1
The GIA 63W #2 interfaces to the following additional equipment:
•
GTX 33( )#2, GTX 3000 #2, or GTX 335R#2
•
ADF (if installed)
•
Stormscope (if installed)
•
Radar Altimeter (if installed)
•
GDU 1050A #2
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
or GSU 75 #1 & #2 (ADAHRS)
Page 12
Revision 1