Appendix A: G300 Pinouts - Garmin G300 Installation Manual

APPENDIX A G300 Pinouts
A.1 GDU 37X
A.1.1 P3701 Connector
Figure A-1. View of J3701 Connector from Back of Unit
Pin Pin Name
1 MONO AUDIO OUT HI
2 STEREO AUDIO OUT LO
3 STEREO AUDIO OUT LEFT
4 SPARE
5 SPARE
6 SPARE
7 SPARE
8 SPARE
9 CDU SYSTEM ID PROGRAM* 2
10 CDU SYSTEM ID PROGRAM* 1
11 RS-422 OUT A
12 RS-422 OUT B
13 RS-232 OUT 3
14 RS-232 IN 2
15 POWER GROUND
16 POWER GROUND
17 CONFIG MODULE POWER OUT
18 MONO AUDIO OUT LO
19 STEREO AUDIO OUT RIGHT
20 STEREO AUDIO OUT LO
21 SPARE
22 SPARE
23 SPARE
24 SPARE
25 CDU SYSTEM ID PROGRAM* 3
26 28V LIGHTING BUS HI
27 SIGNAL GROUND
28 CAN BUS TERMINATION
29 RS-232 IN 3
30 RS-232 OUT 2
31 AIRCRAFT POWER 2
32 AIRCRAFT POWER 1
* Indicates Active Low
G300 Installation Manual – Pinouts
190-00921-01
PIN 1
PIN 18
PIN 34
PIN 17
PIN 33
PIN 50
I/O
Out
--
Out
--
--
--
--
--
In
In
Out
Out
Out
In
--
--
Out
--
Out
--
--
--
--
--
In
In
--
--
In
Out
In
In
Page A-1
Revision A