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