
28
MICROPHONE
Pin No.
Signal Name
Pin 1
MIC
Pin 2
Connected to RADIO PIN 5
Pin 3
PTT
Pin 4
DC+5V Bias
Pin 5
MIC Ground
Pin 6
Control Pulse Input
Pin 7
Ground
Pin 8
SP Output
E
Ground
Note: You do not use the Pin 2, 4 and 6 in usual operation.
4-6: Power Source
To power your
AR570
, you will either need and an external power supply or a battery. An external
power supply must be able to provide 10 to 13.8VDC at 500mA. The Black/Red power cord which
comes with the
AR570
can be used to connect the power source.