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Audio Interface (Optional)
The audio interface can provide 3 kinds of Audio output choics :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 speaker)will be cut off. when the
RearAudio is available, the ActiveAudio will be cut off. An onboard amplifier is needed for
the case of earphone plugged into. when the FrontAudio jack is inexistence, Pin11 and
Pin12, Pin13 and Pin14 must be short connected.
Microphone in
Line in
Speaker
(Active Audio)
Speaker Out
Earphone
(Front Audio)
Œ
Pin
Symbol
No.
1
Active LINE Out(R)
3
GND (ALO)
5
GND(+12)
7
+12V(1A)
9
MIC
11
Front LINE Out( R )
13
Front LINE Out( L )
15
GND (FLO)
Front Audio jack
2
4
1
3
Manual for S4L series
Installation Instructions
Pin
Symbol
No.
2
Active LINE Out(L)
4
GND (ALO)
6
GND(+12)
8
(Cut away )
10
GND ( MIC )
12
LINE Next( R )
14
LINE Next( L )
16
(Cut away )
FrontLineOutR
LineNextR
LineNextL
FrontLineOutL
GND
6
8
10
12
14
16
Œ
BLSPK
(Audio Interface)
5
7
9 13
1 1
15
13
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