The RFID Passive DAS Monitoring and Management System consists of three components: the main unit, combiner, and tags. The main unit communicates with the tags via a dedicated frequency to determine the status of devices and links. Combined with antenna information binding and registration, it enables fault visualization in the network management system. This system is specifically designed to address issues in traditional passive DAS, such as the inability to achieve real-time monitoring, difficulty in fault location, troubleshooting, and repair. Additionally, it helps operators manage their assets more effectively.