This series of UPS uninterruptible power supply adopts the high-frequency double transformation structure of the output isolation transformer and advanced digital control technology, to achieve stable, clean and uninterruptible power output, and to provide important loads with power supply equipment that is free from grid interference, voltage regulation and frequency stability. At the same time, it also provides a variety of communication solutions, and a friendly human-machine interface, which is convenient for users to set up and monitor the machine. The communication section provides MODBUSRS, 232 and expandable smart slots. ​