How to secure fiber optic cables to the fiber optic splice tray

Fiber optic cables are secured to splice trays using cable ties, crimping tabs, and careful fiber routing to maintain bend radius and protect splices.

Step-by-

Step Guide1. Prepare the Fiber Cable: Remove the outer jacket, shielding, and any armor to expose the loose tubes or tight-buffered fibers. Clean the fibers and strength members to ensure a smooth surface for splicing and securing.

2. Install the Splice Tray: Place the splice tray in the fiber enclosure or stacking unit. If multiple trays are used, stack them according to the enclosure's design, ensuring accessibility for maintenance.

3. Route the Fibers: Loop the fibers into the tray to determine the required slack length. Bring fibers to the center of the splice holders, making the largest possible circles to avoid tight bends that can cause signal loss.

4.

Secure Tight-

Buffered Fibers: Thread cable ties through the designated holes in the tray base. Position the tie buckles to one side of the fiber bundle to prevent interference with the tray cover. Multiple fibers can be secured under a single tie, but ensure ties do not obstruct tray stacking or cover installation.

5. Crimping (if applicable): For buffer tubes, use a crimping tool to secure the tube under the crimp tab. Adjust the tool to match the tube diameter, and ensure the tube extends slightly beyond the tab (about 1 cm) for stability.

6. Splice the Fibers: Remove only enough fiber to reach the splicing equipment. Perform the splice according to manufacturer instructions, then coil the excess fiber back into the tray, maintaining proper bend radius.

7. Place Splices in Holders: Insert the completed splices into the splice holders within the tray. Ensure all fibers are positioned under retaining tabs to prevent movement and protect the splices.

8. Install the Tray Cover: Snap the clear cover onto the tray, aligning the holes with the tray base. This protects the fibers and splices while keeping the tray organized.

Best Practices

Avoid tight bends or twists in fibers to prevent attenuation. Keep fibers organized and labeled for easy maintenance. Use protective tubing if the cable jacket cannot reach the tray.

Always follow safety precautions to avoid eye injury from laser light and fiber shards. By following these steps, fiber optic cables can be securely fastened to splice trays, ensuring long-term network reliability and ease of maintenance.