RS232/485 converter, port-powered, isolation, support 2500V isolation, no ... port, It is high delicacy, function stabilization and so on. adopt DB9 pin currency serial interface. Features1. Plug and ... Port-powered, high efficiency obtain electricity, can also worked on 3 lines 3. Support 2500V isolation, no power supply ... Update Date:2012-04-24 04:38:40 RS232/485 converter(port-powered, isolation)