J3471 Connector Pin Assignments - Garmin GMA 347 Installation Manual

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