... can conveniently connect up to 8 serial devices to an Ethernet, allowing you to network your existing serial ... remote management, each serial port operates independently to provide maximum versatility, each port can be ... TXD,DTR,GND,DSR,RTS,CTS RS-485:Data+,Data-,GND RS-422:TXD+,TXD-,RXD+,RXD-, ... side adopt ADDC technology, auto text and control data transfer directionLoading: RS-485/422 side support ...