Gia 63 Integrated Avionics Unit; Gea 71 Engine/Airframe Unit; Figure 2-2. Gia 63 Integrated Avionics Unit; Figure 2-3. Gea 71 Engine/Airframe Unit - Garmin G1000 Maintenance Manual

2.1.3 GIA 63 Integrated Avionics Unit

Two Garmin GIA 63 IAUs provide VHF COM, VHF NAV, GPS NAV and other various navigation
functions, as well as control logic for the Garmin GFC 700 autopilot. GIAs provide communication
interface to all other G1000 LRUs in the system. Both GIAs are located directly behind the MFD,
installed into their respective LRU racks. The #1 GIA is powered through the essential bus and
immediately powers up when the left battery or right battery master switch is turned on. The #2 GIA
receives power through the Avionics bus and powers up when the avionics master switch is turned on.
Both GIA 63s interface to the following equipment:
•
Existing VOR/LOC/Glideslope Antenna System
•
Existing VHF COM 1 & 2 Antennas
•
Existing GPS 1 & 2 Antennas
•
WX-500 StormScope (#2 GIA Only)
•
GFC 700 Autopilot
•
Ryan TCAD (#2 GIA Only)
•
CO Detector (#2 GIA Only)

2.1.4 GEA 71 Engine/Airframe Unit

The Garmin GEA 71 Engine/Airframe Unit provides engine/airframe data to the G1000 system. Data
received from transducers/sensors is processed, then sent via RS-485 to a GIA 63, and subsequently to the
GDU 1040 MFD. The GEA 71 is connected to both GIA 63s for redundant communications. In display
reversionary mode, engine instrumentation is displayed on the PFD as well. The GEA is located directly
behind the PFD in its LRU rack. Power is received from the essential bus.
Page 2-2
Revision C

Figure 2-2. GIA 63 Integrated Avionics Unit

Figure 2-3. GEA 71 Engine/Airframe Unit

G1000-Columbia 350/400 System Maintenance Manual
190-00577-03