Garmin G3X Installation Manual page 307

23.3.4 Serial Data
23.3.4.1 RS-232
3 Channels of RS-232 I/O data.
RS-232 IN 1
RS-232 OUT 1
RS-232 IN 2
RS-232 OUT 2
RS-232 IN 3
RS-232 OUT 3
23.3.4.2 CAN Bus
This data bus conforms to the BOSCH standard for Controller Area Network 2.0-B. This bus complies
with ISO 11898. CAN BUS TERMINATION should be connected to CAN BUS LO for the GDU that is
located at the end of the bus (farthest from the GSU 73), see
CAN BUS HI
CAN BUS LO
CAN BUS TERMINATION
23.3.4.3 Configuration Module
Connect the configuration module to the PFD1 unit; do not connect a config module to PFD2 or the MFD.
Pin Name
CONFIG MODULE CLOCK
CONFIG MODULE DATA
CONFIG MODULE POWER OUT
CONFIG MODULE GROUND
190-01115-01
Rev. AA
Pin Name
Pin Name
Wire Color
WHITE (WHT)
YELLOW (YEL)
RED (RED)
BLACK (BLK)
G3X/G3X Touch Installation Manual - LRU Pinouts
Connector
J3701
J3701
J3701
J3701
J3701
J3701
Section 2.3.1.3.3 for details.
Connector
J3701
J3701
J3701
Connector
J3701
J3701
J3701
J3701
Pin I/O
47 In
48 Out
14 In
30 Out
29 In
13 Out
Pin I/O
46 I/O
45 I/O
28 --
Pin I/O
33 I/O
50 I/O
17 Out
49 --
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