190-02207-A2
GPS 175/GNX 375/GNC 355 Part 23 AML STC Maintenance Manual
Rev. 3
Page 5-29
Table 5-7 J3551 Connector Pinout
Pin
Pin Name
I/O
Pin
Pin Name
I/O
1
CONFIG MODULE CLOCK
OUT
32
ETHERNET OUT 1B
OUT
2
OBS ROTOR H (GND)
--
33
ETHERNET IN 1A
IN
3
OBS ROTOR C
OUT
34
VEDOWN OUT
OUT
4
TIME MARK A
OUT
35
LOC COMPOSITE
OUT
5
ARINC 429 OUT 1A
OUT
36
REMOTE GO AROUND
IN
6
ARINC 429 OUT 1B
OUT
37
LRIGHT OUT
OUT
7
RS-232 OUT 3
OUT
38
+FROM OUT
OUT
8
RS-232 OUT 2
OUT
39
GPS SELECT
OUT
9
RS-232 OUT 1
OUT
40
LIGHTING BUS LO
OUT
10
ETHERNET OUT 1A
OUT
41
AIRCRAFT GND
--
11
ETHERNET IN 1A
IN
42
AIRCRAFT POWER
IN
12
VEUP OUT
OUT
43
CONFIG MODULE POWER
OUT
13
GND
--
44
OBS STATOR D
IN
14
GND
--
45
OBS STATOR E (GND)
--
15
LLEFT OUT
OUT
46
GND
--
16
+TO OUT
OUT
47
GND
--
17
LOI ANNUNCIATE
OUT
48
ARINC 429 IN 2A
IN
18
GPS APPROACH ANNUNCIATE
OUT
49
ARINC 429 IN 2B
IN
19
LIGHTING BUS HI
IN
50
RS-232 GND 3
--
20
AIRCRAFT GND
--
51
RS-232 GND 2
--
21
AIRCRAFT POWER
IN
52
RS-232 GND 1
--
22
CONFIG MODULE DATA
I/O
53
LATERAL -FLAG OUT
--
23
CONFIG MODULE GND
--
54
LFLAG OUT
OUT
24
OBS STATOR G (GND)
--
55
VEFLAG OUT
OUT
25
OBS STATOR F
IN
56
VERTICAL -FLAG GND
----
26
TIME MARK B
OUT
57
DISCRETE IN 2
IN
27
ARINC 429 IN 1A
IN
58
DEMO MODE
IN
28
ARINC 429 IN 1B
IN
59
RESERVED
IN
29
RS-232 IN 3
IN
60
DISCRETE OUT 4
OUT
30
RS-232 IN 2
IN
61
REMOTE POWER ON
IN
31
RS-232 IN 1
IN
62
GND
--
