The MXLoRa-N04 is a LoRaWan node device that incorporates LoRaWan technology and makes it suitable for building automation. It is also a standalone LoRaWan terminal node with 4 IO and a RS485 port, which can transmit data from traditional IO monitoring points or RS485 devices through LoraWAN. Compliance with LoRaWan Class A and Class C, and supports downlink communication. (The downlink command is used to control IO points.)