The DC power cabinet of the power system base station is the core component of the communication base station power supply system. Its main function is to provide stable, reliable, and uninterrupted DC power for various communication equipment inside the base station. Convert the mains power (AC) into the DC power required for communication equipment (such as -48V, 240V, etc.) through rectifier modules to ensure the normal operation of critical loads such as BBU, RRU, and transmission equipment.