Garmin G3X - 23.14.1.1 J252

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 23-58
23.14.1.1 J252
Figure 23-26 J252 on GSU 25, as viewed looking at connector on unit
Pin Pin Name I/O
1 OAT POWER Out
2 OAT HIGH In
3 OAT LOW In
4 UNIT ID 1 GROUND --
5 UNIT ID 1 In
6 +12V MAGNETOMETER POWER Out
7 MAGNETOMETER GROUND --
8 RESERVED --
9 RS-232 TX 3 Out
10 RS-232 RX 3 In
11 GROUND --
12 RS-485 RX A In
13 RS-485 RX B In
14 GROUND --
15 RS-232 TX 2 Out