Name: Garmin G3X Touch
Brand: Garmin
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190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts

Rev. AC Page 25-48

25.9 GMU 11 (Magnetometer)

25.9.1 J441 Connector

Figure 25-20 J111 on GMU 11, as viewed looking at connector on unit

25.9.2 Power Function

The GMU 11 is compatible with 14V and 28V systems. AIRCRAFT POWER 1 and

AIRCRAFT POWER 2 are “diode ORed” to provide power redundancy.

25.9.2.1 Unit ID

Install a jumper connecting pin 3 to pin 6 to configure unit as Magnetometer #2.

25.9.2.2 CAN Bus

The CAN Bus conforms to the BOSCH standard for Controller Area Network 2.0-B, and complies with

ISO 11898. Refer to Section 2.3.1.3

for details on wiring the CAN bus.

Pin Pin Name I/O

1 CAN BUS HI I/O

2 CAN BUS LO I/O

3 UNIT ID IN

4 RESERVED --

5 RESERVED --

6 SIGNAL GROUND --

7 AIRCRAFT POWER 1 IN

8 AIRCRAFT POWER 2 IN

9 POWER GROUND --

Pin Name Connector Pin I/O

AIRCRAFT POWER 1 J111 7 In

AIRCRAFT POWER 2 J111 8 In

POWER GROUND J111 9 --

Pin Name Connector Pin I/O

UNIT ID J111 3 IN

SIGNAL GROUND J111 6 --

Pin Name Connector Pin I/O

CAN BUS HI J111 1 I/O

CAN BUS LO J111 2 I/O

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