System Architecture; G3X Interconnect Example - Garmin G3X Installation Manual

2.1.1

System Architecture

Figure 2-1 illustrates an example block diagram of a G3X installation. The flexibility of the system allows
the installer to determine the architecture that best fits each installation. Only one GDU 37X display is
required, but up to three may be used.
Refer to Figure 2-1 to determine which of the optional LRUs will be used in the installation and to
determine the required interface connections.
GAP 26
Pitot/AOA
(Optional)
Pitot
GDU 370
AOA
PFD1
RS-232
(Optional)
GAD 29
Data
Concentrator
(Optional)
RS-232
Third-party
Autopilot
(Optional)
G3X Installation Manual - Installation Preparation
Page 2-2
RS-232
RS-232/
Static
RS-485
Source
Static
GSU 25
ADAHRS 1
RS-232
RS-232
GTX 23 ES
Transponder
(Optional)
RS-232
(ADS-B)
A429
(NAV)
A429
(GPS)
A429
(Air Data)
A429
(NAV)
A429
(GPS)
A429
(Autopilot)
Figure 2-1. G3X Interconnect Example
GMU 22
Magnetometer
A/P Controller
GTP 59
Temp Probe
GSU 25
ADAHRS 2
(Optional)
CAN BUS
GDU 375 GDU 370
PFD2 MFD
(Optional) (Optional)
No. 1 GPS/Com
(Optional*)
No. 2 GPS/Com
(Optional*)
GMA 240
Audio Panel
(Optional)
GARMIN COM OR
NAV/COM
(Optional**)
GMC 305
RS-232
(Optional)
GSA 28 GSA 28
Pitch Servo Roll Servo
(Optional) (Optional)
GEA 24
Engine Analyzer
Engine/Airframe
RS-232
RS-232
Sensors
GDL 39/39R
ADS-B Traffic and
Weather Receiver
Stereo/
(Optional)
Mono
RS-232
Notes:
*Maximum of two (2) COM/NAV
units installed.
**Same as (*) plus GDU to SL40
is Tx-only.
190-01115-01
Rev. L