190-02207-A2
GPS 175/GNX 375/GNC 355 Part 23 AML STC Maintenance Manual
Rev. 3
Page 5-24
Table 5-4 J1751 Connector Pinout
Pin
Pin Name
I/O
Pin
Pin Name
I/O
1
CONFIG MODULE (C)
OUT
32
ETHERNET OUT(N)
OUT
2
OBS ROTOR H (GND)
OUT
33
ETHERNET IN(N)
IN
3
OBS ROTOR C
OUT
34
VEDOWN OUT
OUT
4
TIME MARK A
OUT
35
LOC COMPOSITE
OUT
5
ARINC 429 OUT 1 A
OUT
36
REMOTE GO AROUND
--
6
ARINC 429 OUT 1 B
OUT
37
LRIGHT OUT
OUT
7
RS-232 #3(T)
OUT
38
FROM FLAG
--
8
RS-232 #2(T)
OUT
39
GPS SELECT
(DISCRETE OUT 3)
--
9
RS-232 #1(T)
OUT
40
LIGHTING BUS(L)
IN
10
ETHERNET OUT(P)
OUT
41
POWER GND
--
11
ETHERNET IN(P)
IN
42
POWER INPUT 1
IN
12
VEUP OUT
OUT
43
CONFIG MODULE (V)
OUT
13
GND
--
44
OBS STATOR D
--
14
GND
--
45
OBS STATOR E (GND)
--
15
LLEFT OUT
OUT
46
GND
--
16
TO FLAG
--
47
GND
--
17
LOI (DISCRETE OUT 2)
OUT
48
ARINC 429 IN 2 A
IN
18
APPR (DISCRETE OUT 1)
OUT
49
ARINC 429 IN 2 B
IN
19
LIGHTING BUS(H)
IN
50
RS-232 #3 (GND)
--
20
POWER GND
--
51
RS-232 #2 (GND)
--
21
POWER INPUT 1
IN
52
RS-232 #1 (GND)
--
22
CONFIG MODULE (D)
I/O
53
LATERAL FLAG GND
--
23
CONFIG MODULE (GND)
OUT
54
LATERAL FLAG OUT
OUT
24
OBS STATOR G (GND)
--
55
VERTICAL FLAG OUT
OUT
25
OBS STATOR F
--
56
VERTICAL FLAG GND
--
26
TIME MARK B
OUT
57
DISCRETE IN 2
IN
27
ARINC 429 IN 1 A
IN
58
DEMO MODE
IN
28
ARINC 429 IN 1 B
IN
59
TEST MODE
IN
29
RS-232 #3(R)
IN
60
DISCRETE OUT 4
OUT
30
RS-232 #2(R)
IN
61
REMOTE POWER ON
IN
31
RS-232 #1(R)
IN
62
GND
--
