Page 4-10
GMA 347 Installation Manual
Revision A
190-00325-01
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
Description
I/O
29
PILOT MIC KEY* IN
In
50
COPILOT MIC KEY* IN
Enables audio into the respective
transceiver unit
In
28
PILOT MIC AUDIO IN HI
In
30
PILOT MIC IN LO
Pilot Mic audio input and ground reference
--
49
COPILOT MIC AUDIO IN HI
In
51
COPILOT MIC IN LO
Copilot Mic audio input and ground
reference
--
46
PASS 1 MIC AUDIO IN HI
In
47
PASS 1 MIC AUDIO IN LO
Passenger 1 Mic audio and ground
reference
--
65
PASS 2 MIC AUDIO IN HI
In
66
PASS 2 MIC AUDIO IN LO
Passenger 2 Mic audio and ground
reference
--
44
PASS 3 MIC AUDIO IN HI
In
45
PASS 3 MIC AUDIO IN LO
Passenger 3 Mic audio and ground
reference
--
63
PASS 4 MIC AUDIO IN HI
In
64
PASS 4 MIC AUDIO IN LO
Passenger 4 Mic audio and ground
reference
--
* Denotes Active Low (Ground to activate).
4.4.2 ICS Keys
Table 4-12. ICS Key Pin Assignments, J3471
Pin
Pin Name
Description
I/O
31
PILOT ICS KEY*
In
52
COPILOT ICS KEY*
Enables audio into the intercom system
In
24
PASS ICS KEY*
In
* Denotes Active Low (Ground to activate).
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