BL101 is IoT gateway which can be used to convert Modbus, DLT645 to MQTT, OPC UA, Modbus TCP protocols, and then connected to cloud platform through 4G or Ethernet. It can be connected to HUAWEI Cloud, Alibaba Cloud, Thingsboard, AWS and other cloud platforms. It has one RS485 interface, and it can collect 4,000 data points from 100 devices at the same time. It also has VPN network security, TLS SSL data encryption, and data supplementary transmission functions.