USR-N540, A Four Serial Device Server;Four Ports Can Work Independently At The Same Time;Can Distinguish Which Serial Port Connects To The Device Via Port Number;Support Virtual Serial Port And Provide Corresponding Software USR-VCOM;Each Serial Can Work As Rs232,Rs485 Or Rs422;DB9 Female;Provide Rs485/Rs422 Converter

• USR-N540 RS232 to Ethernet RS485 to RJ45 RS422 to TCP IP Converter

USR-N540 RS232 to Ethernet RS485 to RJ45 RS422 to TCP IP ConverterUSR