Begin by removing the outer jacket of the fiber optic cable, including any shielding or armor, to expose the loose tubes. Leave approximately 3 meters of cable for preparation. Clean the exposed fibers and strength members using a fiber cleaning solution, and abrade the outer jacket for about 150mm to ensure a clean surface for sealing. Remove any excess filling material to prevent contamination during splicing .
Select sealing rings that match the cable diameter and place them on the cable. Insert the cable into the designated entry port of the splice closure. Ground the cable shield if applicable. Wrap self-adhesive sealing tape between the sealing rings to create a secure, waterproof seal. Use a hose clamp or provided clamps to secure the cable to the base of the closure, ensuring stability and strain relief .
Open the splice closure and arrange the fibers in splice trays for organized management. Use a fusion splicer for permanent splices or a mechanical splice kit for temporary connections. After splicing, protect each joint with heat shrink tubing or mechanical protectors to prevent damage and signal loss. Ensure fibers are neatly arranged to maintain proper bend radius and avoid stress .
Once all fibers are spliced and protected, seal the enclosure using heat-shrink tubing, mechanical gaskets, or other manufacturer-recommended methods. Ensure all entry points are properly sealed to prevent dust, moisture, and environmental ingress. Mount the closure in its designated location—whether aerial, underground, or wall-mounted—and verify it is properly supported .
After installation, test the fiber connections using an optical power meter or OTDR to confirm signal integrity and acceptable loss levels. Label all cables and ports clearly for future maintenance and network management. Regular inspections are recommended to check for water ingress, physical damage, or strain on the fibers .
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