Gsu 73 (Sensor Unit) - Garmin G3X Installation Manual

23.13 GSU 73 (Sensor Unit)

23.13.1 Connector Description
The GSU 73 has one 62-pin connector (J731) and one 78-pin connector (J732) located on the connector
end of the unit, as shown below. J731 and J732 are clearly marked on the connector end plate.
23.13.2 J731 Connector
Figure 23-26 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
1 MAGNETOMETER RS-485 IN B
2 MAGNETOMETER RS-485 IN A
3 SIGNAL GROUND
4 RESERVED
5 RESERVED
6 RESERVED
7 CAN BUS HI
8 CAN BUS LO
9 DISCRETE IN* 1
10 DISCRETE IN* 2
11 DISCRETE IN* 3
12 DISCRETE IN* 4
*Indicates Active Low
190-01115-01
Rev. AA
Figure 23-25 Rear View of Connector End Plate
Pin Name
G3X/G3X Touch Installation Manual - LRU Pinouts
I/O
In
In
--
--
--
--
I/O
I/O
In
In
In
In
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