SYSTEM OVERVIEW
High-Speed Data Bus (Ethernet)
GMA 1347 Audio Panel
GDU 1040 (PFD)
GDU 1040 (MFD)
Reversionary Control
Reversionary Control
GDC 74A Air Data Computer No. 1 GIA 63 Integrated Avionics Unit System Inegration Processors I/O Processors VHF COM VHF NAV/LOC GPS Glideslope GPS Output
OAT Airspeed Altitude Vertical Speed
GRS 77 AHRS Attitude Rate of Turn Slip/Skid
No. 2 GIA 63 Integrated Avionics Unit System Integration Processors I/O Processors VHF COM VHF NAV/LOC GPS Glideslope GPS Output
GMU 44 Magnetometer Heading
GTX 33 Transponder
Honeywell KAP 140 Autopilot (If equipped)
GEA 71 Engine/Airframe Unit
Figure 1-1 Basic G1000 System
1-4
Garmin G1000 Pilot’s Guide for Cessna Nav III
190-00498-00 Rev. A