The protection rating IP65 means Huijue Outdoor Compact Integrated DC Power Module and Battery Module is a weatherproof outdoor DC power supply. It is reliable, powering network access layer devices. Matched with a battery, it may work as reliable long-duration backup power constituting a strong DC waterproof power supply system. The given solution finds wide application for indoor distributed systems of mobile networks, remote micro base station of mobile networks, WLAN access layer PoE switch, IMS, FTTH data network access site, among others.