Fiber closure is the inclusion and protection of the housing of each connector in any fiber optic system, rather than fiber splicing (splicing, splicing and mechanical splicing), which is covered in this separate blog. In view of the fragility of the fiber and the potential to upgrade the cable, high-quality closure is critical to the success of the installation. But what is fiber closuref when you choose one when you should look for something?
Pipeline distribution closures have become popular with the widespread use of blown fiber and cable systems using multiple microbodies. As the name suggests, these create an online miniature rail link, or, more often, to separate the miniature products into different destinations. Instead of the fiber splits that occur in the enclosure, the individual miniature products are connected together by a specially designed push-in connector specifically designed for waterproofing. This allows the closure to have a simple design without the need for expensive seals and easy assembly in the field.
Fiber closure requires attention to sealing performance. The enclosure must be sealed to its rating and can also be connected to the cable port. The cable port must also withstand the associated tensile load caused by direct or thermal effects of cable shrinkage. Please note that the shutdown does not necessarily require "full" waterproof (IP 68), but depending on the usage, it can be rated as a lower level, such as IP 67. Some closures can be safely turned off and forgotten. However, most of the need to re-enter to add / remove customers, upgrade the fiber or as part of the bug fix. This has led to advances in the use of cold seals for rubber seals, gaskets and gel compounds.
But perhaps the biggest change will continue in the customer's building. In view of the aesthetic considerations, it is now necessary to use a small electrical outlet box, rinse or surface mount and high-quality decorative surface. These should be able to accommodate the input of the pre-terminated or ordinary fiber for the connector, the mechanical or fused connection to the client device connected to the network jumper. In some cases, especially using PON.