Introduction JHA-SW4G1608MGH fully follows the design and materials of industrial products, the shell adopts 19-inch rack design, wide range of working environment temperature, DC37-75V/AC100-240V dual power supply redundancy and other technologies, providing durable Excellent industrial-grade quality such as high/low temperature and lightning protection; supports powerful management functions, including system management, comprehensive Layer 2 management functions, Layer 3 routing management, QOS queue management, comprehensive network security management and monitoring and maintenance management; industrial grade 3rd ESD protection is suitable for various occasions, such as deployment requirements in intelligent transportation, outdoor surveillance, industrial networks, safe cities and other harsh environments.