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Chapter 2
Chapter 2
Chapter 2
Chapter 2
Chapter 2
Audio Interface(Optional)
The audio interface provides three kinds of audio output choices: the FrontAudio, the
RearAudio and the ActiveAudio. Their priority level is as sequence. When the FrontAudio is
available, the RearAudio and the ActiveAudio( in-case speakers ) will be cut off. When the
RearAudio is available, the ActiveAudio will be cut off. An onboard amplifier is provided for
the earphone. When the FrontAudio is absent, Pin11 and Pin12, Pin13 and Pin14 must be
short connected.
Pin
No.
Symbol
Pin
No.
Symbol
1
Active LINE Out(R)
2
Active LINE Out(L)
3
GND (ALO)
4
GND (ALO)
5
GND(+12)
6
GND(+12)
7
+12V(1A)
8
(Cut away )
9
MIC
10
GND ( MIC )
11
Front LINE Out( R )
12
LINE Next( R )
13
Front LINE Out( L )
14
LINE Next( L )
15
GND (FLO)
16
(Cut away )
Speaker Out
Line in
Microphone in
Speaker
Earphone
F_AUDIO
(Audio Interface)
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
