190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page E-7
NOTE
The GDU 37X rear connector (J3701) is electrically isolated. For installations using
shielded cables, a ground pin must be tied to the connector shell.
Pin Pin Name I/O
25 CDU SYSTEM ID PROGRAM* 3 In
26 28V LIGHTING BUS HI In
27 SIGNAL GROUND --
28 CAN BUS TERMINATION --
29 RS-232 IN 3 In
30 RS-232 OUT 2 Out
31 AIRCRAFT POWER 2 In
32 AIRCRAFT POWER 1 In
33 CONFIG MODULE CLOCK I/O
34 SIGNAL GROUND --
35 SIGNAL GROUND --
36 SIGNAL GROUND --
37 SIGNAL GROUND --
38 SPARE --
39 SPARE --
40 SPARE --
41 SPARE --
42 CDU SYSTEM ID PROGRAM* 4 In
43 14V LIGHTING BUS HI In
44 SIGNAL GROUND --
45 CAN BUS LO I/O
46 CAN BUS HI I/O
47 RS-232 IN 1 In
48 RS-232 OUT 1 Out
49 CONFIG MODULE GROUND --
50 CONFIG MODULE DATA I/O
*Indicates Active Low
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