Gmu 22 (Magnetometer) - Garmin G3X Installation Manual

23.9 GMU 22 (Magnetometer)

23.9.1 J441 Connector
Figure 23-20 J441 on GMU 22, as viewed looking at connector on unit
Pin
1 SIGNAL GROUND
2 RS-485 OUT B
3 SIGNAL GROUND
4 RS-485 OUT A
5 SPARE
6 POWER GROUND
7 SPARE
8 RS-232 IN
9 +12 VDC POWER
23.9.2 Power Function
Power-input pins accept supply voltage from ADAHRS (GSU 25/73).
+12 VDC POWER, GMU 22
POWER GROUND, GMU 22
23.9.3 Serial Data
23.9.3.1 RS-232
The RS-232 input pin accepts data from the ADAHRS (GSU 25/73).
RS-232 IN
23.9.3.2 RS-485
The RS-485 pins provide data to the ADAHRS (GSU 25/73).
RS-485 OUT A
RS-485 OUT B
190-01115-01
Rev. AA
Pin Name
Pin Name
Pin Name
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
Connector Pin
J441 9
J441 6
Connector Pin
J441 8
Connector Pin
J441 4
J441 2
Page 23-48
I/O
--
Out
--
Out
--
--
--
In
In
I/O
In
--
I/O
In
I/O
Out
Out