iWSN-2200 series are iWSN wireless data contractors, they support one 433MHz wireless communication interface and one RS-232/RS-485/Ethernet communication interface. Among them, the RS-232/RS-485 interface can’t be used simultaneously. The series modules support Modbus RTU/TCP protocol slave, the main function can receive and buffer 31 iWSN sensor’s data by wireless, and user can transmit Modbus RTU/TCP commands to read the sensor’s data by RS-232/RS-485/Ethernet interface. In wireless interface, the series modules support 16 wireless channels and 8 groups ID by rotary switch and DIP switch setting, the user can easy to use the them to divide and manage the wireless network of 433MHz frequency.