Garmin G900X Pilot's Manual page 22

SYSTEM OVERVIEW
GDU 1040
PFD #1
GIA 63W #1
Integrated Avionics Unit
System Integration Processors
I/O Processors
VHF COM
VHF NAV/LOC
GPS
Glideslope
GPS Output
6
GDU 1040
GMA 1347
MFD
Audio Panel
GDC 74A #1
Air Data
Computer
OAT
Airspeed
Altitude
Vertical Speed
GRS 77 #1
AHRS
Attitude
Rate of Turn
Slip/Skid
GMU 44 #1
Magnetometer
Heading
GTX 33 #1
Transponder
GEA 71
Engine/
Airframe Unit
Figure 1-2 Basic G900X Three Display System Block Diagram
Garmin G900X Pilot's Guide
GCU 476
Control Unit
(optional, shown)
or
GCU 477
Control Unit
(optional)
GDC 74A #2 #2
Air Data
Computer
OAT
Airspeed
Altitude
Vertical Speed ed
GRS 77 #2
AHRS
Attitude
Rate of Turn
Slip/Skid
GMU 44 #2
Magnetometer
Heading
GTX 33 #2
Transponder
GDU 1040
PFD #2
GIA 63W #2
Integrated Avionics Unit
System Integration Processors
I/O Processors
VHF COM
VHF NAV/LOC
GPS
Glideslope
GPS Output
190-00726-00 Rev. J