Garmin 010-00859-00 Installation Manual - page 29
GDL 88 TSO Installation Manual
Page 5-1
190-01122-00
Rev. A
5 CONNECTOR PINOUT INFORMATION
5.1 Pin Function List
5.1.1 P881 Connector
View looking at rear of unit, Pin X is top X
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
21
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
Table 5-1. P881 Connector
Pin
Pin Name
I/O
1
RESERVED
--
2
RS-232 OUT 5
I/O
3
TIME MARK 1B
I/O
4
AUDIO OUT HI
Out
5
RS-232 OUT 4
Out
6
RS-232 OUT 3
Out
7
RS-232 OUT 2
Out
8
RS-232 OUT 1
Out
9
TIME MARK 2B
I/O
10
ARINC 429 OUT 1A
Out
11
ARINC 429 OUT 2A
Out
12
FAN SPEED
In
13
AUDIO ACTIVE OUT*
Out
14
ADS-B DEVICE FAIL*
Out
15
ADS-B FUNCTION FAIL
Out
16
AIR/GROUND*
In
17
REMOTE POWER ON*
In
18
GROUND
In
19
AIRCRAFT POWER
In
20
AIRCRAFT POWER
In
21
RS-232 IN 5
In
22
TIME MARK 1A
I/O
23
AUDIO OUT LO
Out
24
RS-232 IN 4
In
25
RS-232 IN 3
In
26
RS-232 IN 2
In
27
RS-232 IN 1
In
28
TIME MARK 2A
I/O
29
ARINC 429 OUT 1B
Out
30
ARINC 429 OUT 2B
Out
31
FAN POWER (5V)
Out
32
RS-422 IN 2A
In
33
RS-422 IN 2B
In
34
RS-422 OUT 2A
Out
35
RS-422 OUT 2B
Out
36
IDENT*
In
37
AUDIO INHIBIT IN*
In
38
PRESSURE ALT BROADCAST INHIBIT*
In