Indoor fiber optic daily maintenance primarily involves cleaning fiber end faces, inspecting physical connections, performing periodic power-off maintenance, and avoiding excessive bending to ensure signal stability and extend service life.
Fiber End Face Cleaning
Tools: Use fiber optic cleaning solution and lint-free wipes; avoid alcohol-based cleaners.
Method: Wipe the end face vertically. For single-mode fiber, maintain an 8° angle during wiping. Replace the protective cap immediately after cleaning.
Physical Connection Inspection
Interface Compatibility: Mixing SC/UPC and SC/APC interfaces may cause over 30dB loss increase. Verify interface types match.
Connector Condition: Periodically inspect fiber connectors for looseness or contamination. Use a fiber end-face inspection pen for verification when necessary.
Regular Power-Down Maintenance
Recommend powering down for at least 30 minutes weekly to clear memory fragments and reduce capacitor aging risks. Allow 1-2 minutes for discharge after powering down.
Avoid Excessive Bending
The minimum bending radius for single-mode fiber is 30mm, and 40mm for multi-mode fiber. Excessive bending causes microbend loss; maintain natural cable curvature.
Optical Modem Status Monitoring
Indicator Lights: Monitor PON and LOS lights. Investigate optical signal issues during anomalies.
Optical Power: Maintain home ONT reception power between -8dBm and -28dBm. Check link loss if below -30dBm.
Environmental Protection
Heat Dissipation: Elevating the ONT 10cm improves cooling efficiency by 30%. Use external fans for summer cooling.
Humidity Control: Employ electronic dehumidifiers during rainy seasons. Coastal areas require moisture and oxidation prevention.