Garmin 011-01257-00 Installation Manual - Page 35
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4.4
J3471 Connector Pin Assignments
This section covers the pin connections of J3471 only.
4.4.1 Mic Audio Inputs and Mic Keys
Table 4-11. Mic Audio Inputs and Mic Key Pin Assignments, J3471
Pin
Pin Name
29
PILOT MIC KEY* IN
28
PILOT MIC AUDIO IN HI
30
PILOT MIC IN LO
46
PASS 1 MIC AUDIO IN HI
47
PASS 1 MIC AUDIO IN LO
65
PASS 2 MIC AUDIO IN HI
66
PASS 2 MIC AUDIO IN LO
44
PASS 3 MIC AUDIO IN HI
45
PASS 3 MIC AUDIO IN LO
63
PASS 4 MIC AUDIO IN HI
64
PASS 4 MIC AUDIO IN LO
* Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active).
4.4.2 Remote ICS Audio and ICS Keys
Table 4-12. Remote ICS Audio and ICS Keys Pin Assignments, J3471
Pin
31
PILOT ICS KEY*
24
PASS ICS KEY*
21
REMOTE CREW ICS AUDIO IN HI
22
REMOTE CREW ICS AUDIO IN LO
40
REMOTE PASS ICS AUDIO IN HI
41
REMOTE PASS ICS AUDIO IN LO
60
REMOTE CREW ICS OUT HI
REMOTE PASS ICS AUDIO OUT
5
HI
61
REMOTE CREW ICS OUT LO
* Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active).
GMA 1347D Installation Manual
190-00303-21
Pin Name
Description
Enables audio into the respective
transceiver unit
Pilot Mic audio input and ground reference
Passenger 1 Mic audio and ground
reference
Passenger 2 Mic audio and ground
reference
Passenger 3 Mic audio and ground
reference
Passenger 4 Mic audio and ground
reference
Description
Enables audio into the intercom system
Remote crew ICS input and ground
reference
Remote passenger ICS input and
ground reference
Remote crew audio output
Remote passenger audio output
Ground reference for remote passenger
and crew audio outputs
I/O
In
In
In
In
In
In
In
In
In
In
In
I/O
In
In
In
In
In
In
Out
Out
Out
Page 4-9
Revision C