190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 23-67
23.17 GTX 23 (Mode S Transponder)
23.17.1 Connector Description
The GTX 23 has one 62-pin connector (J2301) as shown below. All electrical connections are made
through J2301 except for the antenna and shield ground.
23.17.2 J2301 Connector
Figure 23-30. J2301 on GTX 23, as viewed looking at connector on unit
Pin Pin Name I/O
1 NOT USED --
2 NOT USED --
3 NOT USED --
4 NOT USED --
5 NOT USED --
6 NOT USED --
7 NOT USED --
8 NOT USED --
9 NOT USED --
10 NOT USED --
11 NOT USED --
12 EXTERNAL IDENT SELECT* In
13 EXTERNAL STANDBY SELECT* In
14 NOT USED --
15 NOT USED --
16 NOT USED --
17 NOT USED --
18 NOT USED --
19 NOT USED --
20 NOT USED --
21 AIRCRAFT POWER 1 In
22 RS-232 IN 1 In
23 RS-232 OUT 1 Out
24 RS-232 IN 2 In
25 RS-232 OUT 2 Out
26 NOT USED --
27 NOT USED --
28 ARINC 429 OUT 2 B Out
29 NOT USED --
*Denotes active low (ground to activate)
123456789101112131415
222324252627282930313233343536
44464748495051
525354
5556
161718192021
373839404142
57
5859
6061
62
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