If the power supply system cannot output the specified current, the voltage exceeds the allowable fluctuation range, and the noise voltage exceeds the allowable value for more than 10 seconds, it will be judged as a system fault. Any voltage, frequency, or waveform distortion in the original communication system that exceeds the specified range for a duration of more than 60 seconds is considered a fault. To ensure the reliability of the communication power supply system, communication departments with conditions should try to introduce 2-way mains power input from two different places and set up 2-way mains power automatic switching devices; The equipment used should be high-frequency switch rectifier equipment with high reliability, adopting a modular and hot swappable structure for easy replacement, and reasonably configuring backup equipment. No new technology or equipment shall enter the power supply system without sufficient verification and trial operation. The power supply method should vigorously promote decentralized power supply, and communication equipment using the same DC voltage should adopt two or more independent power supply systems. This is also a new requirement for the continuous expansion of communication network capacity and scale, and the introduction of various new industries in the future. In order to minimize the average time to repair equipment failures, it is necessary to regularly analyze operating parameters, predict the time of failure occurrence, and promptly eliminate it. We also need to improve the level of technical maintenance by adopting centralized maintenance, remote signaling, and telemetry maintenance.

Implementing centralized monitoring and management is an inevitable trend in the development of network technology, a requirement of modern communication networks, and an effective measure for enterprises to reduce staff and increase efficiency. Various power devices should be intelligent, standardized, and comply with open communication protocols. In the implementation process, the setting of the three remote points should be reasonable, and the more, the better. Reliability and practicality should be the basic principles, and simplicity should be avoided. In this regard, our station has achieved unmanned power supply by utilizing functions such as remote signaling, telemetry, and remote centralized maintenance in the power supply system. When an obstacle occurs in the power supply system, the system automatically sends a paging message to maintenance personnel.