Garmin GTX 330 Installation Manual page 20

4. SYSTEM INTERCONNECTS
4.1 PIN FUNCTION LIST
4.1.1 J3301
Pin Pin Name
1 AVIONICS MASTER ON SELECT*
2 ALTITUDE A1
3 ALTITUDE C2
4 ALTITUDE A2
5 ALTITUDE A4
6 ALTITUDE C4
7 ALTITUDE B1
8 ALTITUDE C1
9 ALTITUDE B2
10 ALTITUDE B4
11 ALTITUDE D4
12 EXTERNAL IDENT SELECT*
13 EXTERNAL STANDBY SELECT*
14 28 V LIGHTING BUS HI
15 AUDIO OUT HI
16 AUDIO OUT LO
17 SQUAT SWITCH IN
18 RESERVED
19 ALTITUDE ALERT ANNUNCIATE*
20 RESERVED
21 AIRCRAFT POWER
22 RS 232 IN 1
23 RS 232 OUT 1
24 RS 232 IN 2
25 RS 232 OUT 2
26 ARINC 429 IN 3 A
27 AIRCRAFT GROUND
28 ARINC 429 OUT 2 B
29 ARINC 429 IN 3 B
30 ARINC 429 OUT 2 A
31 EXTERNAL SUPPRESSION I/O
32 ARINC 429 IN 1 A
33 ARINC 429 IN 2 A
GTX 330 Installation Manual
190-00207-02
21 20 19 18 17 16 15 14 13
42 41 40 39 38 37 36 35
62 61 60 59 58 57 56 55
Figure 4-1. Rear Connector, J3301
Connector P3301
Table 4-1. P3301 Pin Assignments
12 11 10 9 8 7 6 5
34 33 32 31 30 29 28 27 26
54 53 52 51 50 49 48 47
4 3 2 1
25 24 23 22
46 44
I/O
In
In
In
In
In
In
In
In
In
In
In
In
In
In
Out
Out
In
--
Out
--
In
In
Out
In
Out
In
--
Out
In
Out
I/O
In
In
Page 4-1
Rev. 1