Garmin GMA 240 インストール手順
GMA 240 Installation Manual
190-00917-01
Page 4-6
Rev. D
4.5 Audio Inputs/Outputs and Mic Keys
4.5.1 Mic Audio Inputs and Mic Keys
4.5.2 Intercom Key Inputs (if configured)
These inputs only perform the described ICS KEY function if the audio panel has been configured for
KEYED ICS by configuration jumper settings (
KEYED ICS by configuration jumper settings (
). For this configuration, intercom squelch
levels should be set fully CCW (live MIC) because the MIC signal must also break the VOX threshold to
be heard.
be heard.
Table 4-7 Mic Audio Inputs and Mic Keys
Pin
Connector
Pin Name
Description
I/O
34
P2401
PILOT MIC KEY* IN
Enables respective MIC audio into
the selected transceiver unit
the selected transceiver unit
IN
33
P2402
COPILOT MIC KEY* IN
IN
33
P2401
PILOT MIC AUDIO IN HI
Pilot Mic audio input and ground
reference
reference
IN
35
P2401
PILOT MIC IN LO
--
32
P2402
COPILOT MIC AUDIO IN HI
Copilot Mic audio input and ground
reference
reference
IN
34
P2402
COPILOT MIC IN LO
--
35
P2402
PASS 1 MIC AUDIO IN HI
Passenger 1 Mic audio and ground
reference
reference
IN
36
P2402
PASS 1 MIC AUDIO IN LO
--
37
P2402
PASS 2 MIC AUDIO IN HI
Passenger 2 Mic audio and ground
reference
reference
IN
38
P2402
PASS 2 MIC AUDIO IN LO
--
*Denotes Active Low (Ground to activate)
Table 4-8 Intercom Key Inputs
Pin
Connector
Pin Name
Description
17
P2402
PILOT ICS KEY* IN
Enables respective mic audio to be heard in the
intercom
intercom
36
P2401
COPILOT ICS KEY* IN
37
P2401
PASSENGER ICS KEY* IN
*Denotes Active Low (Ground to activate)