1. Regular Inspection and Cleaning Routine inspection is critical to prevent signal degradation. Monthly checks should include visual inspection of fiber connections, testing backbone link attenuation, and cleaning connector end faces. Quarterly or semi-annual maintenance should involve OTDR testing, verifying system alarm records, and updating maintenance logs to detect potential issues early . Connector end-face contamination is a leading cause of network failures, so inspection before each reconnection is recommended, using fiber optic microscopes or automated inspection tools . 2. Environmental Control Temperature and humidity significantly affect fiber performance. Maintain a stable environment (18–27°C, 40–60% relative humidity) to prevent micro-bending losses caused by thermal expansion or contraction . Dust control is essential; use high-efficiency air filters, anti-static cleaning tools, and seal spare cables to prevent contamination . Proper airflow planning in high-density cabling areas helps avoid heat accumulation and signal loss. 3. Cable Management Maintaining proper bend radius and cable slack is crucial to prevent physical damage. Use horizontal and vertical cable managers, trays, and raceways to organize fibers and avoid unintentional bending . Labeling and color-coding cables according to industry standards simplifies troubleshooting and future upgrades . Pre-configured cable management solutions save time during installation and reduce the risk of damage . 4. Monitoring and Digital Tools Implement optical cable monitoring systems to detect abnormalities in real time. Advanced digital platforms, such as Fiber Network Management Systems, allow geospatial visualization, predictive analytics, and real-time fault detection, improving operational efficiency and reducing downtime . Automated monitoring supports preventive maintenance and early warning of potential hazards. 5. Safety and Standard Compliance Operators must follow safety standards, including ITU-T G.664 and IEC 60825, to handle fiber safely and avoid eye or skin exposure to fiber light sources . Training and certification, such as FOA CFOT, ensure personnel perform maintenance effectively and safely .
Adopt a “prevention first” approach, combining regular inspections, environmental monitoring, and automated surveillance. Record all maintenance activities meticulously to avoid hidden risks and ensure continuity of service . Seasonal and periodic maintenance, coupled with real-time monitoring, helps detect and resolve faults before they impact network performance.
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