Garmin GMA 1347D-00 User Manual

Page 4-10 GMA 1347D Installation Manual
Revision C 190-00303-21
4.4.3 Com Audio and Mic Keys
Table 4-13. Com Audio and Mic Keys Pin Assignments, J3471
Pin Pin Name Description I/O
27 ON-SIDE COM MIC KEY* Out
33 CROSS-SIDE COM MIC KEY* Out
78 COM 3 MIC KEY*
Enables audio into the respective
transceiver unit
Out
7 ON-SIDE COM AUDIO IN HI
COM 1 audio input for GMA #1
COM 2 audio input for GMA #2
In
26 ON-SIDE COM MIC AUDIO OUT HI
COM 1 audio output for GMA #1
COM 2 audio output for GMA #2
Out
8 ON-SIDE COM AUDIO LO
Ground reference for COM 1 audio
(GMA #1)
Ground reference for COM 2 audio
(GMA #2)
--
12 CROSS-SIDE COM AUDIO IN HI**
COM 2 audio input for GMA #1
COM 1 audio input for GMA #2
In
32
CROSS-SIDE COM MIC AUDIO OUT
HI**
COM 2 audio output for GMA #1
COM 1 audio output for GMA #2
Out
13 CROSS-SIDE COM AUDIO LO**
Ground reference for COM 2 audio
(GMA #1)
Ground reference for COM 1 audio
(GMA #2)
--
58 COM 3 AUDIO IN HI COM 3 audio input In
77 COM 3 MIC AUDIO OUT HI COM 3 audio output Out
59 COM 3 AUDIO LO Ground reference for Com 3 audio --
* Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active).
** Denotes analog inputs not used in digital installations.
4.4.4 Nav Audio
Table 4-14. Nav Audio Pin Assignments, J3471
Pin Pin Name Description I/O
6 ON-SIDE NAV AUDIO IN HI**
Nav 1 audio input for GMA #1
Nav 2 audio input for GMA #2
In
25 ON-SIDE NAV AUDIO IN LO**
Nav 1 ground reference for GMA #1
Nav 2 ground reference for GMA #2
In
14
CROSS-SIDE NAV AUDIO IN
HI**
Nav 2 audio input for GMA #1
Nav 1 audio input for GMA #2
In
34
CROSS-SIDE NAV AUDIO IN
LO**
Nav 2 ground reference for GMA #1
Nav 1 ground reference for GMA #2
In
** Denotes analog inputs not used in digital installations.

Garmin GMA 1347D-00 Specifications

General

Brand	Garmin
Model	GMA 1347D-00
Category	Avionics Display
Language	English