Common Issues with Fiber Optic Splice Closures and How to Fix Them

Fiber optic splice closures are essential components in any fiber optic network. These closures are used to protect and connect fiber optic cables for use in harsh environments. Despite their importance, fiber optic splice closure can experience a range of issues that can cause problems with network performance. In this article, we will explore some of the most common issues with fiber optic splice closures and how to fix them.

  1. Cable Damage

One of the most common issues with fiber optic splice closures is damage to the fiber optic cable. This can occur due to a number of factors, including excessive bending, crushing, or twisting of the cable. Damage to the cable can cause signal loss, poor performance, or even complete failure of the network.

To fix this issue, it is important to carefully inspect the cable and splice closure for any signs of damage. If damage is detected, the cable should be repaired or replaced as soon as possible to avoid any further problems.

  2.Moisture Infiltration

Moisture Infiltration means that water and moisture can seep into the splice box, causing damage to cables and other components. Moisture can also cause corrosion, which can further damage closures and affect network performance.

fiber optic splice closures water

To fix this issue, it is important to ensure that the fiber optic splice closure is properly sealed and protected from moisture. This can be achieved by using high-quality seals and gaskets, as well as by regularly inspecting the closure for any signs of moisture infiltration. Some of Baudcom fiber splicer closure can meet wateproof IP68 standard.

3. Cable Bends

Another issue that can affect fiber optic splice closures is cable bends or kinks. These can cause stress on the fibers, which can lead to poor performance of network.

To fix this issue, the cable should be carefully inspected for kinks or bends. If there is a problem, it should be straightened slightly to relieve the stress on the fiber. In severe cases, it may be necessary to replace the affected cable.

fiber cable too much bend in fiber optic splice closures

fiber optic splice closure tension

4.Fiber Misalignment

Fiber misalignment can occur during installation or due to thermal expansion and contraction. This can cause attenuation or signal loss.

fiber optic splice closure Fiber misalignment

To fix this issue, the fiber optic splice closure should be opened, and the fibers should be carefully inspected for any misalignment. If any are found, the fibers should be repositioned and spliced together again.

5. Poor connection Quality

Poor connection quality can also be a common issue with fiber optic splice closures. This can occur due to a range of factors, including dirty or damaged connectors, or poor quality splicing tools.

To fix this issue, it is important to carefully inspect the splice closure and fiber optic cables for any defects. This may require re-splicing the cables using high-quality tools and connectors, or replacing damaged or worn components.

6. Cable Strain

Cable strain can occur when cables are pulled too tightly or when the splice closure is improperly installed or secured.

fiber strain in fiber optical closures

To fix this issue, it is important to ensure that the cables are properly secured and supported to prevent any unnecessary strain or tension.

7.Cable Slack

Excessive cable slack can cause the fibers to move around, which can lead to fiber breaks or attenuation.

ADSS Slack Cable Storage Bracket application

To fix this issue, the cable slack should be reduced by adjusting the cable tie-downs or using cable clamps to secure the fibers in place.

8.Compatibility Issues

Finally, compatibility issues can also be a common issue with fiber optic splice closures. This can occur when the closure or components are not compatible with the fiber optic cables being used in the network.
To fix this issue, it is important to carefully check the compatibility of all components and cables before installation. This may require using compatible components or adapting the network to ensure compatibility.
In conclusion, fiber optic splice closures are essential components in any fiber optic network. However, they can experience a range of issues that can affect network performance. By understanding the most common issues and how to fix them, network administrators can ensure that their networks remain reliable and efficient.


Post time:2023-07-12

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Lomoveishiy – Finland

I needed those to connect my PC on the third floor to have internet access in that room, and ISP installed their modem on the first floor only. After dropping fiber patch cables, plugged in all cables into these media converters at both sides, and link came up instantly. Was much easier than I thought!

Raymond – USA

Great experience – units worked straight out of the box – just needed plug in cables and we were done. I also like the possibility to enable jumbo frames, while we do not have a need for this feature at the current moment it’s great to have this option.

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