190-01717-B1
G500/G600 TXi Part 23 AML STC Maintenance Manual
Rev. 1
Page 4-12
4.2.5
GRS 79
The GRS 79 has a single connector:
•
J791/P791 78-pin female contact HD D-Sub
Figure 4-6 View of J791 Connector looking at GRS 79
J791/P791 Connector
Pin
Function
I/O
Pin
Function
I/O
1
ARINC 429 OUT 1A
OUT
40
PPS IN 1 B
IN
2
ARINC 429 OUT 1B
OUT
41
PPS IN 2 A
IN
3
ARINC 429 OUT 2A
OUT
42
RESERVED
--
4
RESERVED
--
43
RESERVED
--
5
RESERVED
--
44
RESERVED
--
6
RESERVED
--
45
ARINC 429 IN 1A
IN
7
ARINC 429 OUT 1B
OUT
46
ARINC 429 IN 1B
IN
8
ARINC 429 OUT 3A
OUT
47
ARINC 429 IN 3A
IN
9
ARINC 429 OUT 3B
OUT
48
SIGNAL GROUND
--
10
RS-422 IN A
IN
49
ARINC 429 OUT 2A
OUT
11
RS-422 IN B
IN
50
ARINC 429 OUT 2B
OUT
12
RS-232 OUT 3
OUT
51
RS-232 OUT 1
OUT
13
MAGNETOMETER POWER OUT
OUT
52
RS-232 IN 1
IN
14
AIRCRAFT POWER 1
IN
53
CONFIG MODULE POWER
OUT
15
SIGNAL GROUND
--
54
CONFIG MODULE DATA
I/O
16
AIRCRAFT POWER 2
IN
55
CONFIG MODULE CLOCK
OUT
17
RESERVED
--
56
DISCRETE IN 1*
IN
18
RESERVED
--
57
SYS ID 2*
IN
19
RESERVED --
58
RESERVED
IN
20
RESERVED --
59
RESERVED
I/O
21
ARINC 429 OUT 3A
OUT
60
PPS IN 1A
IN
22
ARINC 429 OUT 3B
OUT
61
PPS IN 2B
IN
23
ARINC 429 OUT 2B
OUT
62
RESERVED
--
24
SIGNAL GROUND
--
63
RESERVED
--
25
PPS SELECT
IN
64
RESERVED
--
26
SIGNAL GROUND
--
65
ARINC 429 IN 2A
IN
27
ARINC 429 OUT 1A
OUT
66
ARINC 429 IN 2B
IN
28
RESERVED
--
67
ARINC 429 IN 3B
IN
29
RESERVED
--
68
SIGNAL GROUND
--
30
SIGNAL GROUND
--
69
RESERVED
--
31
SIGNAL GROUND
--
70
RESERVED
--
32
SIGNAL GROUND
--
71
RS-232 OUT 2
OUT
33
MAGNETOMETER GROUND
--
72
RS-232 IN 2
IN
34
AIRCRAFT GROUND 1
--
73
SIGNAL GROUND
--
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
31 32 33 34 35 36 37 38 39
40
41 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
