Garmin G3X User Manual

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 23-40
23.5.2 Power Functions
23.5.2.1 Aircraft Power
The GHA™ 15 height advisor provides an aircraft power input which accepts 14/28 VDC.
23.5.3 CAN Bus
The GHA 15 provides a CAN Bus. The CAN Bus conforms to the BOSCH standard for Controller Area
Network 2.0-B and ISO 11898.
23.5.4 USB
The GHA 15 provides a standard Universal Serial Bus (USB) interface for unit diagnostic purposes. The
USB connection is not required for normal installations. The interface is compatible with the Universal
Serial Bus Version 2.0 standard for operation as a “high-speed” device.
Table 23-1 Aircraft Power
Pin Name Pin I/O
AIRCRAFT POWER 14 In
POWER GROUND 1 --
Table 23-2 CAN Bus
Pin Name Pin I/O
CAN BUS LO 7 I/O
CAN BUS HI 8 I/O
CAN BUS TERM 18 Out
Table 23-3 USB Connections
Pin Name Pin I/O
USBO DP** 9 I/O
USBO DM** 10 I/O
USB VBUS** 19 In
SIGNAL GROUND 20 --
**Signals have ESD (Electrostatic Discharge) protection, but no lightning protection.
USB Type B Receptacle pigtail cable must be wired directly to J2001.

Garmin G3X Specifications

General

Display Type	LCD
Touchscreen	Yes
Power Input	10-32 VDC
Connectivity	Bluetooth, Wi-Fi (optional)
Interfaces	RS-232
GPS	Internal GPS/WAAS receiver
AHRS	Integrated AHRS
Air Data Computer	Integrated Air Data Computer
Autopilot Compatibility	Compatible with Garmin autopilots
Operating Temperature	-20°C to +55°C
Sunlight Readability	Sunlight readable display
Screen Size	10.6 inches