Audio Inputs/Outputs And Mic Keys; Table 4-6 Mic Audio Inputs And Mic Keys; Table 4-7 Com Audio And Mic Keys - Garmin GMA 245 Installation Manual

4.6 Audio Inputs/Outputs and Mic Keys

4.6.1 Mic Audio Inputs and Mic Keys
Pin Connector
34 J2401
33 J2402
33 J2401
35 J2401
32 J2402
34 J2402
35 J2402
36 J2402
37 J2402
38 J2402
39 J2402
40 J2402
41 J2402
42 J2402
*Denotes Active Low (Ground to activate)
4.6.2 COM Audio and Mic Keys
Pin Connector
12 J2401
30 J2401
9 J2401
11 J2401
10 J2401
13 J2401
15 J2401
14 J2401
*Denotes Active Low (grounded when active)
190-01879-11
Rev. 6

Table 4-6 Mic Audio Inputs and Mic Keys

Pin Name
PILOT MIC KEY* IN
COPILOT MIC KEY* IN
PILOT MIC AUDIO IN HI
PILOT MIC AUDIO IN LO
COPILOT MIC AUDIO IN HI
COPILOT MIC AUDIO IN LO
PASS 1 MIC AUDIO IN HI
PASS 1 MIC AUDIO IN LO
PASS 2 MIC AUDIO IN HI
PASS 2 MIC AUDIO IN LO
PASS 3 MIC AUDIO IN HI
PASS 3 MIC AUDIO IN LO
PASS 4 MIC AUDIO IN HI
PASS 4 MIC AUDIO IN LO

Table 4-7 COM Audio and Mic Keys

Pin Name
COM 1 MIC KEY* OUT
COM 2 MIC KEY* OUT
COM 1 AUDIO IN HI
COM 1 MIC AUDIO OUT HI
COM 1 AUDIO LO
COM 2 AUDIO IN HI
COM 2 MIC AUDIO OUT HI
COM 2 AUDIO LO
Description
Enables respective MIC audio into
the selected 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 transmission on the
respective transceiver unit
COM 1 Audio Input
COM 1 Audio Output
Ground Reference for COM 1
COM 2 Audio Input
COM 2 Audio Output
Ground Reference for COM 2
GMA 245/245R Installation Manual
I/O
IN
IN
IN
--
IN
--
IN
--
IN
--
IN
--
IN
--
I/O
OUT
OUT
IN
OUT
--
IN
OUT
--
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