Operating Voltage: 12 V DC (6-24 V) 2 Operating Current: 10-16 mA 3 Control Mode: MODBUS RTU 03 06 16 4 Three Operating Modes: 8 inputs/8 outputs or 4 inputs/4 outputs 5 Input Mode: Compatible with 3.3 V/5 V TTL inputs, two input modes: low level (default) and high level Output Mode: 5 V TTL level, low level (default)/high level output In MODBUS mode, up to 247 devices can be used in parallel Input port status supports polling (default) and automatic report generation Default transmission rate is 9600 bits/s, configurable to 1200, 2400, 4800, and 19200 bits/s Application Automated industrial programmable logic controller (PLC) Digital input to RS485/RS485 to digital output Smart home, home automation; Identification system; PTZ control of CCTV cameras; Security system; LED matrix display; RS485 remote control; Color: Green Material: Plastic Dimensions: 44 x 31 x 15 mm Weight: with pins: 10 grams Package contents: 1 x input/output module Only the above-mentioned package contents are included. Other products are not included. Note: The color of the item in the photo may slightly differ from the real thing due to lighting and your monitor settings. A margin of error of +/- 1 to 3 cm is possible.