The MER048-20B Waterproofing power supply is widely used in the micro base station of village, expressway, railway, tunnel lamp and outdoor communication signal. It is also suitable for indoor distributed communication system. This series of power supply has the advantages of high power density, stable performance and small volume. The structure adopts die casting aluminum technology and has good natural heat dissipation. The device adopts intelligent management system to provide RS485 and dry contact communication output interface. The series of waterproof power supply has two models. Optional battery management function.Optional wireless communication module, support WLAN Web Access, smartphone does not need to download APP.