Huawei AR530 Series Router AR531G-U-D-H industrial router handles a wider temperature range, suitable to harsher environments, catering specifically to thing like smart grid and automated meter collection and other type of in the field deployment. It has dual optical WAN interfaces, in addition to 3G backup for the ultimate reliability for industry applications. The Huawei AR531G-U-D-H builds onto same successful AR router platform, it already includes the function such as VPN, Zone-base security as well as a lot of attack defense mechanisms design to make this product more self-defending against things like denial services attacks. 1) 6 FE 10/100 ports, 2 GE ports, 2 RS485 ports, 2 DI ports,3G network, fan less, DC power supply 2) high- and low-temperature resistant, dustproof, waterproof, electro-magnetic interference resistance 3) Power Line Communications, Building Energy-efficiency Management System 4)150Mbps system bandwidth, 5.6Gbps switching Capacity, -40 - 60 temperature range 5)512MB Memory, 512MB Flash Memory, 1 USB 6) Zone-based firewall, VPNs, Security