The device is a 2*10G Base-X, 16*10/100/1000Base-T Managed PoE Industrial Ethernet switch, through the fanless cooling circuit design, wide range working environment temperature, high protection level, and other technologies, provides high/low temperature, lightning protection, and other outstanding industrial quality, and integrated switching, safety, and various rich protocols, simultaneously supported The public Ethernet multi-ring protection technology (ERPS) has greatly enhanced the flexibility of the network and enhanced the reliability and security of the industrial network. It can meet the deployment requirements of rail transit, safe city, intelligent transportation, outdoor monitoring, and other harsh environments.