Section 4 System Interconnects; Pin Function List; Figure 4-1. Rear Connector, J3301; Table 4-1 J3301 Pin Assignments - Garmin GTX 330 Installation Manual

4 SYSTEM INTERCONNECTS

4.1 Pin Function List

4.1.1 J3301
Pin
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 1
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 POWER GROUND
28 ARINC 429 OUT 2 B
29 ARINC 429 IN 3 B
30 ARINC 429 OUT 2 A
*Denotes Active Low (Ground to activate)
190-00207-02
Rev. U

Figure 4-1. Rear Connector, J3301

Table 4-1 J3301 Pin Assignments

Pin Name
GTX 330/330D Installation Manual
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
Page 4-1