Garmin GMA 342 Installation Manual page 50

music inputs or headset outputs will be heard.
Pin Connector
16 J3402
31 J3402
1 J3402
3 J3402
4 J3402
2 J3402
40 J3401
41 J3401
42 J3401
4.6.9 Speaker Audio Out
Do not connect the LO of the speaker to the aircraft chassis. Two wires must be connected from the
GMA 342/345 to the Speaker for the HI and LO signals. If speaker LO is connected to the aircraft chassis
ground, the speaker will contain more noise than if connected back to the GMA 342/345 source
connections.
Pin Connector
43 J3402
44 J3402
190-01878-02
Rev. 5
Table 4-15 Headset Outputs
Pin Name
PILOT HEADSET AUDIO
OUT LEFT
PILOT HEADSET AUDIO
OUT RIGHT
PILOT HEADSET AUDIO
OUT LO
COPILOT HEADSET AUDIO
OUT LEFT
COPILOT HEADSET AUDIO
OUT RIGHT
COPILOT HEADSET AUDIO
OUT LO
PASS HEADSET AUDIO
OUT LEFT
PASS HEADSET AUDIO
OUT RIGHT
PASS HEADSET AUDIO
OUT LO
Table 4-16 Speaker Audio Output
Pin Name
SPEAKER AUDIO OUT LO
SPEAKER AUDIO OUT HI
Description
Pilot Headset Audio Output
Copilot Headset Audio Output
Passenger Headset Audio Output
Description
Speaker Audio Output Ground
Reference
Speaker Audio Output Hi
GMA 342/345 Installation Manual
I/O
OUT
OUT
--
OUT
OUT
--
OUT
OUT
--
I/O
--
OUT
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