Garmin G3X User Manual

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page F-5
F.5.2 J731 Connector
Figure F-3 J731 on GSU 73, as viewed looking at connector on unit
J731 pins are configured as shown in preceding figure. J731 pin assignments are given in the following
table, additional tables group pin connections by function.
Pin Pin Name I/O
1 MAGNETOMETER RS-485 IN B In
2 MAGNETOMETER RS-485 IN A In
3 SIGNAL GROUND --
4 RESERVED --
5 RESERVED --
6 RESERVED --
7 CAN BUS HI I/O
8 CAN BUS LO I/O
9 DISCRETE IN* 1 In
10 DISCRETE IN* 2 In
11 DISCRETE IN* 3 In
12 DISCRETE IN* 4 In
13 DISCRETE OUT* 1 Out
14 DISCRETE OUT* 2 Out
15 MAGNETOMETER RS-232 OUT OUT
16 RS-232 IN 2 (RESERVED) In
17 RS-232 OUT 2 (RESERVED) Out
18 RS-232 IN 3 (RESERVED) In
19 RS-232 OUT 3 (GPS/ALT ENCODER) Out
20 ARINC 429 OUT 1 A Out
21 ARINC 429 OUT 1 B Out
22 ARINC 429 OUT 2 A Out
23 ARINC 429 OUT 2 B Out
24 SIGNAL GROUND --
25 ARINC 429 IN 1 A In
26 ARINC 429 IN 1 B In
27 ARINC 429 IN 2 A In
28 ARINC 429 IN 2 B In
29 CAN BUS TERMINATION --
30 ARINC 429 IN 3 A In
31 ARINC 429 IN 3 B In
32 ARINC 429 IN 4 A In
*Indicates Active Low

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