Garmin GMA 240 Installation Manual page 27

4.2.2 J2402 Connector
Pin Pin Name
1
PILOT HEADSET AUDIO OUT LO
2
COPILOT HEADSET AUDIO OUT LO
3
COPILOT HEADSET AUDIO OUT LEFT
4
COPILOT HEADSET AUDIO OUT RIGHT
5
LIGHTING BUS 14V LO/28V LO
6
LIGHTING BUS 14V HI/28V LO
7
LIGHTING BUS 14V HI/28V HI
8
AIRCRAFT POWER
9
AIRCRAFT POWER
10
AIRCRAFT GROUND
11
AIRCRAFT GROUND
12
RESERVED
13
PILOT ISO MUSIC* IN
14
PILOT ISO MUSIC* RETURN
15
ALERT 3 AUDIO IN HI
16
PILOT HEADSET AUDIO OUT LEFT
17
RESERVED
18
RESERVED
19
BUTTON PRESS TONE ENABLE* IN
20
COM SWAP* IN
21
COM SWAP* IN RETURN
22
RESERVED
23
MUSIC 1 IN LEFT
24
MUSIC 1 IN RIGHT
25
MUSIC 1 IN LO
26
MUSIC 2 IN LEFT
27
MUSIC 2 IN RIGHT
28
MUSIC 2 IN LO
29
FAILSAFE WARN AUDIO IN HI
30
MUTE ON COM TX* IN
31
PILOT HEADSET AUDIO OUT RIGHT
32
COPILOT MIC AUDIO IN HI
33
COPILOT MIC KEY* IN
34
COPILOT MIC AUDIO IN LO
35
PASS 1 MIC AUDIO IN HI
36
PASS 1 MIC AUDIO IN LO
37
PASS 2 MIC AUDIO IN HI
38
PASS 2 MIC AUDIO IN LO
39
RESERVED
40
RESERVED
41
RESERVED
42
RESERVED
43
RESERVED
44
RESERVED
* Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active)
GMA 240 Installation Manual
190-00917-01
Table 4-2. J2402 Pin Assignments
I/O
--
--
OUT
OUT
--
IN
IN
IN
IN
--
--
--
IN
--
IN
OUT
--
--
IN
IN
--
--
IN
IN
--
IN
IN
--
IN
IN
OUT
IN
IN
--
IN
--
IN
--
--
--
--
--
--
--
Page 4-3
Rev. A