DC 12V 4Ch RS232 Relay Board SCM PC USB UART DB9 Remote Control Switch PLC Motor
15,37 €
Communication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Two-way data transmission. 1 xDC 12V 4Ch RS232 Relay Board. Relay toggle (Relay status reversal,if COM connect to NO,this commands will Disconnect COM to NO and Reverse COM connect to NC,and vice versa).
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