Instruction Manual

G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air Page 2-5
190-00716-01 Revision 4
2.1.7 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 1040A 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
COMM power supply (COMM 1) is provided by No. 1 Triple Fed Bus. GIA 2’s COMM power supply
(COMM 2) is provided by Left Gen Avionics Bus. Therefore, both GIAs power-up immediately with
external or aircraft power or battery operation, with the exception of COMM 2 operation which will
become active after selection of Avionics Master on.
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
• GDU 1040A, #1 & #2
• GSA 80
• GSA 9000
• GRS 77 or GRS 7800, #1 & #2
• Traffic System (if installed)
The GIA 63W #1 interfaces to the following additional equipment:
• GDC 7400 #1
• GTX 33( ) or GTX 3000 #1
• DME 42 (if installed)
• GSR 56 (if installed per stand-alone configuration)
The GIA 63W #2 interfaces to the following additional equipment:
• GDC 7400 #2
• GTX 33( ) or GTX 3000 #2
• ADF (if installed)
• Stormscope (if installed)
• Radar Altimeter (if installed)
Figure 2-6, GIA unit