TH series intelligent communication power supply developed by our company is a new "four remote" high frequency switchingpower supply specially developed for communication system. The module adopts the world leading "resonant voltage type doubleloop control power conversion technology", which has the advantages of small size, light weight, high efficiency and highreliability. Output nominal voltage is 48V, equipped with standard rs-485 interface, easy to connect with automatic system.Suitable for program-controlled switchboard and can be used with various communication equipment