Features 1、MULTIPLE FUNCTIONS: Support standard RTU commands, function code, write 05, 06, 15, 16 and read 01, 02, 03. With hardware reset function, and TVS surge protection function 2、INPUT AND OUTPUT: 12 opto isolated inputs (NPN), 12 relay outputs, upgraded relays, more durable 3、COMMAND RUNNING: Commands can be entered through serial HyperTerminal(serial assistant) or Poll, in command mode, up to 64 devices can be supported in parallel 4、OPTIONAL BAUD RATE: The default baud rate is 9600BPS. Baud rate can be selected by Conmand 2400 4800 9600 19200 38400 57600 115200BPS 5、CHECK AND DATA TIME: Parity can be no parity, even check and odd check. You can set the time for data transmission and return, the maximum value is 1000ms Specification Item Type: RS485 Relay Module Backboard Length: Approx. 190mm / 7.48in Insulation Grade: Flame retardant VO grade Installation: DIN35 and C45 rail standby current(all relays off) 14MA, 1 relay on 40MA, 2 relays on 68MA, 3 relays on 96MA, 4 relays on 122MA, 5 relays on 149MA, 6 relays on 177MA, 7 relays open 201MA, 8 relays open 225MA Package List 1 x RS485 Relay Module