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3.2 I/O Socket Instruction
3.2.1 Circuit Instruction of I/O Socket
3.2.2 4-pin Socket instruction
4-pin socket is connected to key box, pin’s functions refer to following table.
4-pin socket
Pin NO.
Pin Name
Function
4P-1
Min4
It’s used to connect to
“START/STOP” operation button.
4P-2
GND
“0V” Power supply