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Pin1 0V
Pin2 DC24V

COM1/COM3
Pin1 Rx-(B)
Pin2 RxD_PLC (COM1 RS232)
Pin3 TxD_PLC(COM1 RS232)
Pin4 Tx-
Pin5 GND
Pin6 Rx+(A£©
Pin7 RxD_PLC£¨COM3 RS232£©
Pin8 TXD_PLC£¨COM3 RS232£©
Pin9 Tx+

