Introduction Huawei R4815G1 is a digital rectifier that converts the 85~300VAC input to 53.5 VDC output and possesses the characters of high efficiency, walk-in start, hotplug, complete protection, and no audible noise. The rectifier adopts the latest power monitoring technology, implements the function of monitoring the states of loads and the rectifier status in real-time. The output voltage of the rectifier can be adjusted through the host.