Features: 16 inputs can remotely control 16 outputs of another board via RS485 bus (relevant registers must be set); MODBUS RTU command, Support 03 06 function code(Some registers support 16 function codes); Under the ''Delay'' command ,the delay is 255 seconds; MODBUS commands can be made Terminals ( assistant) OR ''Modbus Poll'' Enter; Under the MODBUS command modes, it can support up to 64 devices The default baud rate is 9600BPS. The baud rate can be selected through jumpers: 2400 4800 9600 19200BPSload: the load current of each channel is 300MA Specifications: Material:ABS Working voltage: DC6.5-30V (7.5V 9V 12V 15V 24V) Working current:8-50MA 16channels photoelectric isolation Input ports (low level active ) 16channels output (ULN2803NPN output) ''open'' ''close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay'' 6Commands Option Type:1xRS485 Remote Control Module,1xRS485 Remote Control Module with Shells Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xRS485 Remote Control Modules