How to Management the Optical Fiber after Splicing？

The scientific fiber coiling method can make the optical fiber layout reasonable, the additional loss is small, can withstand the test of time and harsh environment, and can avoid the phenomenon of fiber breakage caused by extrusion.

Fiber Splice Tray

Optic Fiber Management Rules

1. Coil the fibers along the direction of the loose tube or the branching direction of the optical cable. The former is applicable to all splicing projects; the latter is only applicable to the end of the main optical cable, and it has one input and multiple outputs. Most of the branches are small logarithmic optical cables. The rule is to reel the fiber once after splicing and heat-shrinking one or several fibers in loose tubes, or fibers in a split direction cable. It avoids the confusion of optical fibers between loose tubes of optical fibers or between different branch optical cables, making it reasonable in layout, easy to reel and dismantle, and easier to maintain in the future.

2. Take the heat-shrinkable tube placement unit in the reserved tray as the unit to coil the fiber. This rule is based on the number of heat-shrinkable tubes that can be placed in a small placement area in the reserved tray in the splice box. The same bundle of optical fibers caused by different positions is uneven, difficult to coil and fix, and even sharp bends and small circles appear.

3. In special cases, such as optical splitters, up or down pigtails, pigtails and other special devices in the splicing, it is necessary to splice, heat shrink, and coil ordinary optical fibers first, and then deal with the above situations in turn, for the sake of safety. Management operation to prevent the increase of additional losses caused by extrusion.

Optic Fiber Management Method

1. First the middle and then both sides, that is, first place the heat-shrinkable sleeves in the fixing groove one by one, and then deal with the remaining fibers on both sides. It is beneficial to protect the fiber joints and avoid possible damage caused by the fiber coil. This method is often used when the space reserved for the optical fiber is small and the optical fiber is not easy to coil and fix.

2. Start from one end to coil the fiber, that is, start from the fiber on one side, fix the heat shrinkable tube, and then process the remaining fiber on the other side. According to the length of remaining fiber on one side, the installation position of the effective copper tube can be flexibly selected, which is convenient and fast, and can avoid sharp bends and small circles.

3. Handling of special circumstances, such as individual optical fibers that are too long or too short, can be coiled separately at the end; when there are special optical devices, they can be processed in another coil, if they are coiled with ordinary optical fibers, they should be It is lightly placed on the ordinary optical fiber, and a buffer liner is added between the two to prevent fiber breakage caused by extrusion, and the tail fiber of special optical devices should not be too long.

4. According to the actual situation, a variety of graphic disk fibers are used. According to the length of the remaining fiber and the size of the reserved disk space, it will be coiled naturally according to the trend. Do not pull it forcefully. You should flexibly use various graphics such as circle, ellipse, "CC" and "~" (note R≥4cm), maximize the use of the reserved disk space and effectively reduce the additional loss caused by the disk fiber. 

In addition, strengthening the monitoring of OTDR is of great significance to ensure the quality of optical fiber fusion, reduce the additional loss caused by the fiber coil and the possible damage to the optical fiber caused by the sealing box. Optical cable continuity is a meticulous work, especially in the links of end face preparation, welding, fiber coiling, etc., requiring the operator to observe carefully, consider carefully, and operate in a standardized manner.

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