Monthly Maintenance: Randomly inspect fiber optic cable connections, test backbone fiber optic link attenuation, and clean connector end faces. Quarterly/Semi-annual Maintenance: Perform OTDR testing on fiber optic lines, verify system alarm records, and update. Some people have suggested that fiber optic networks need periodic maintenance, including microscopic inspection of connectors and mating adapters and even insertion loss testing or taking OTDR traces. 25 deals with general features in relation to the maintenance and operation of optical fibre cable networks. This revision is intended to be appropriate for the current situation with respect to. This article, based on FiberMania's extensive experience in fiber optic product manufacturing and OEM customization, explores practical strategies for enhancing data center reliability and long-term operational stability. In today's information society, data centers have become the most important. A general practice of cleaning optical cables and module OSAs is a good and recommended habit to ensure overall system reliability and peak performance. General safety precautions are discussed within this document but care should be taken to consult and follow your specific optical device manuals. Fiber optic cables and connectors are essential components of optical networks that transmit data using light pulses. However, they are also sensitive to dust, dirt, scratches, and other environmental factors that can degrade their performance and reliability. Therefore, it is important to follow.