Garmin GMA 342 Installation Manual page 59

APPENDIX C INTERCONNECT DRAWINGS
190-01878-02
Revision 5
GMA 342/345
J3402 P3402
PILOT HEADSET LO 1
PILOT HEADSET RIGHT
31
PILOT HEADSET LEFT
16
S
COPILOT HEADSET LO 2
COPILOT HEADSET RIGHT 4
COPILOT HEADSET LEFT 3
S
COPILOT MIC AUDIO IN LO 34
COPILOT MIC AUDIO IN HI 32
S
COPILOT MIC KEY* IN 33
PASS 1 MIC AUDIO IN LO 36
PASS 1 MIC AUDIO IN HI
35
S
38
PASS 2 MIC AUDIO IN LO
37
PASS 2 MIC AUDIO IN HI
S
PASS 3 MIC AUDIO IN LO 40
PASS 3 MIC AUDIO IN HI 39
S
PASS 4 MIC AUDIIO IN LO 42
41
PASS 4 MIC AUDIIO IN HI
S
MUSIC 1 IN LO 25
MUSIC 1 IN RIGHT 24
MUSIC1 IN LEFT 23
S
MUSIC 2 IN LO 28
MUSIC 2 IN RIGHT 27
MUSIC 2 IN LEFT 26
S
SPEAKER AUDIIO OUT HI 44
SPEAKER AUDIO OUT LO 43
S
15
ALERT 2 AUDIO IN HI
ALERT 2, FAILSAFE AUDIO LO 14
S
29
FAILSAFE WARN AUDIO IN HI
S
PA MUTE* OUT 12
PA MODE SELECTED* OUT 19
LIGHTING BUS 14V HI/28V HI 7
SEE NOTE 10
LIGHTING BUS 14V HI/28V LO 6
REFER TO THE LIGHTING BUS WIRING DIAGRAM FOR WIRING OPTIONS.
LIGHTING BUS 14V LO/28V LO 5
PASSENGER ICS KEY* IN 13
20
COM SWAP* IN
SEE NOTE 14
PLAY KEY* IN 22
COPILOT ICS KEY* IN 30
AIRCRAFT POWER 8
AIRCRAFT POWER 9
POWER GROUND 10
POWER GROUND 11
21
GROUND SPARE GROUND
CAN BE USED FOR ANY GROUND RETURN EXCEPT POWER OR MUSIC.
DO NOT USE FOR POWER OR MUSIC GROUND.
RS-232 IN 17
RS-232 OUT 18
SEE NOTE 5
SEE NOTE 5
ALTERNATE
SEE NOTE 5 PTT CONNECTION
COPILOT PTT
SEE NOTE 5,6
SEE NOTES 5, 6
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 19
SEE NOTE 5
SEE NOTE 19
Cabin Speaker
SEE NOTE 9,16
Alert 2 Audio
Failsafe Audio
Mute Trigger to EXT PA
USE 5 AMP BREAKER
Aircraft Power Bus
5A
USE 22 AWG FOR POWER AND GROUND
COPILOT PTT
Figure C-3 J3402 Connector Example Interconnect Drawing
GMA 342/345 Installation Manual
Page C-3