Garmin 011-01257-00 Kurulum Kılavuzu - Sayfa 34
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4.3.6
Speaker
The speaker output is capable of driving up to 10 Watts into a 4 Ω or 8 Ω speaker.
Pin
Pin Name
41
SPEAKER AUDIO OUT LO
42
SPEAKER AUDIO OUT HI
4.3.7
Digital Audio
The following Inputs and Outputs are used in a digital installation.
Pin
ON-SIDE COM MIC DIGITAL
8
AUDIO OUT
9
ON-SIDE COM DIGITAL AUDIO IN
CROSS-SIDE COM MIC DIGITAL
47
AUDIO OUT
CROSS-SIDE COM DIGITAL
48
AUDIO IN
28
ON-SIDE NAV DIGITAL AUDIO IN
CROSS-SIDE NAV DIGITAL
68
AUDIO IN
SECONDARY DIGITAL AUDIO
49
CLOCK OUT
SECONDARY DIGITAL AUDIO
50
CLOCK IN
29
ONSIDE VOICE ALERT DIGITAL
AUDIO IN
61
CROSS-SIDE VOICE ALERT
DIGITAL AUDIO IN
17
COM SWAP*
18
PROGRAM GROUND
*Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active).
4.3.8
PA MUTE
PA MUTE is an output that is grounded when active. It is used to trigger the mute function on
an external PA system.
Pin
Pin Name
PA MUTE* OUT
64
*Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active).
Page 4-8
Revision C
Table 4-8. Speaker Pin Assignments, J3472
Ground reference for speaker audio
Speaker audio output
Table 4-9. Digital Audio Pin Assignments, J3472
Pin Name
Table 4-10. PA MUTE Pin Assignments, J3472
Output capable of sinking 500 mA to ground
Description
Description
COM 1 Mic digital output for GMA #1
COM 2 Mic digital output for GMA #2
COM 1 digital input for GMA #1
COM 2 digital input for GMA #2
Not used in dual installations
COM 2 digital input for GMA #1
COM 1 digital input for GMA #2
NAV 1 digital input for GMA #1
NAV 2 digital input for GMA #2
NAV 2 digital input for GMA #1
NAV 1 digital input for GMA #2
Digital data pins for synchronization
between two audio panels in a dual
installation
Digital input for on-side voice alert audio
Digital input for cross-side voice alert
audio
When enabled, COM1 and COM2 are
swapped.
Description
GMA 1347D Installation Manual
I/O
--
Out
I/O
Out
In
Out
In
In
In
Out
In
In
In
In
--
I/O
Out
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