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Installation
Connection of the speaker-microphone
Connect the supplied speaker-microphone to the SP/MIC connector of the
ARD9000MK2.
If you wish to use your own microphone or a speaker-microphone, please refer to
the wiring diagram shown below.
Pin #
Signal
1
Speaker output
2
BIAS
3
GND
4
NC
5
NC
6
MIC PTT
7
MIC GND
8
MIC IN
Details
Speaker output
5V DC though 2.2 Kohm
Chassis ground
No connection
No connection
PTT (Push To Talk) input
Microphone ground
Microphone signal input
12
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