RS232/RS485/422 industrial converter; Three ends of the power interface completely isolated; 9-40VDC wide voltage power supply; Full duplex & half duplex; Automatic transceiver and conversion without delay; Maximum rate: 230Kbps; Maximum communication distance: 2km (9600bps) or 3km (4800bps); Rail-mounted industrial structure; With communication indicator; Can be configured with 64 RS485 nodes; Lightning protection.