(It is believed that students are familiar with large-scale enterprise data centers. No matter the technology of Huawei or Cisco, students can systematically learn the actual technology of data centers. This course is a very important technical project in the field of system integration, which is the power supply system architecture design of DC in large data center. The course content includes DC power supply redundancy architecture design, DC power supply system design, high-voltage distribution system and backup power supply system design, which can enable network engineers to develop horizontally and master more professional technology.)