Garmin G3X Touch, Maintenance Manual

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Maintenance Manual 190-02472-02
G3X Touch EFIS Part 23 AML STC Revision 2
Page 7
equipment that is not compatible with G3X can retain their separate external indicator to maintain IFR
capability. The external indicator installation is outside the scope of this STC.
G3X systems using optional SiriusXM (SXM) or ADS-B receivers require dedicated antennas which are
not installed under this STC.
2.1 Equipment Descriptions
2.1.1 GDU 460
The Garmin Display Unit (GDU) 460 provides a central display and user interface for the G3X Touch EFIS
Touch system. GDU 460 is a 10.6-inch landscape-oriented, panel mounted control and display unit with
a GPS receiver. The GDU features a high-resolution infrared touchscreen user interface augmented by a
set of dual-concentric knobs and dedicated buttons for commonly used functions. The GDU 460 is
mounted flush to the aircraft instrument panel on the left side within the pilot’s primary field of view. Below
is a list of some of the functions provided by the GDU 460.
Many of the listed functions depend on optional equipment interfaces and/or subscription services.
PFD Functions

Primary attitude, heading, and air data information

Slip/skid and rate-of-turn indication

Synthetic Vision including Pathways and Flight Path Marker

Horizontal Situation Indicator (HSI)

Flight Director display with GFC500 autopilot modes and alerts

Clock and timer
MFD Functions

Moving map with VFR flight planning function

Charts and SafeTaxi

Traffic display and alerting

Terrain and obstacle display and alerting

Datalink weather

Display of flight plan and navigation from an external Garmin GPS navigator

Display of navigation from an external VOR/ILS NAV radio

Control and display of Transponder and Com radios
System Interfaces

Display engine parameters when configured and interfaced with a Garmin Engine Adapter (GEA
24).

Wireless Bluetooth transceiver that can communicate with tablet computers and other Garmin
devices that support Connext interface protocol. Refer to G3X Touch Pilot’s Guide for Certified
Aircraft (190-02472-00) for guidance in using Connext Bluetooth connections.

CAN and RS-232 interfaces to communicate with Garmin LRUs and other devices. Refer to the
appropriate sections in G3X Touch EFIS Part 23 AML STC Installation Manual (190-02472-01)
for interconnect and configuration information.

BNC connector for GPS antenna (only required on PFD)
One GDU 460 may be installed as a single PFD (see Figure 2-1) or with a GDU 470 in a dual display
configuration.