190-01639-00
GSU 75 ADAHRS Installation Manual
Rev. 6
Page 4-1
4 SYSTEM INTERCONNECTS
4.1 Pin Function List
4.1.1 GSU 75 J751 Connector
Figure 4-1 View of J751 connector looking at back of GSU 75
Table 4-1 J751 Connector
Pin
Pin Name
I/O
1
ARINC 429 OUT ADC 1A
Out
2
ARINC 429 OUT ADC 1B
Out
3
ARINC 429 OUT ADC 2A
Out
4
OAT LO
In
5
OAT HI
In
6
OAT POWER
Out
7
ARINC 429 OUT ADAHRS 1B
Out
8
ARINC 429 OUT ADAHRS 3A
Out
9
ARINC 429 OUT ADAHRS 3B
Out
10
RS-422 IN A
In
11
RS-422 IN B
In
12
RS-232 OUT AHRS 3
Out
13
MAGNETOMETER POWER OUT
Out
14
AIRCRAFT POWER 1
In
15
SIGNAL GROUND
--
16
AIRCRAFT POWER 2
In
17
RS-232 OUT ADC 2
Out
18
RS-232 IN ADC 2
In
19
RESERVED
--
20
RESERVED
--
21
ARINC 429 OUT ADC 3A
Out
22
ARINC 429 OUT ADC 3B
Out
23
ARINC 429 OUT ADC 2B
Out
24
SIGNAL GROUND
--
25
PPS SELECT
In
26
SIGNAL GROUND
--
*Indicates active low
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
340095
The document reference is online, please check the correspondence between the online documentation and the printed version.
