Working voltage: DC 12V (6-24V) Working current: 10-16mA MODBUS RTU 03, 06, 16 control mode Three functional modes available: 8 channel input, 8 channel output, or 4 input and 4 output Input mode: supports 3.3V/5V TTL level input; two input modes available: low level input (default) and high level input Output mode: 5V TTL level, low level (default) or high level output MODBUS mode supports up to 247 devices in parallel Input port status supports query (default) and automatic reporting Default baud rate is 9600bps; configurable to support 1200, 2400, 4800, 19200 bps Applications: Industrial automation PLC Digital input to RS485 / RS485 to digital output Smart home and home automation Identification systems CCTV camera PTZ control Security systems LED dot matrix displays RS485 remote control Color: Green Material: Plastic Size: 44x31x15mm Weight with pin: 10 grams Package Contents: 1 x Input Output module Note: Light and display differences may cause slight color variation between item and image. Measurement error allowed is +/- 1-3cm.