190-01115-01
G3X/G3X Touch Installation Manual - LRU Pinouts
Rev. AC
Page 25-14
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
