Fiber optic closure, also known as fiber optic splicing closures, is a protective enclosure used in fiber optic networks. It is designed to house and protect fiber optic cables, splices, and connectors from environmental factors such as moisture, dust, and physical damage. Fiber optic closures can provide protection for the fiber joint and the fiber cables since they have excellent mechanical strength and strong out shell, which ensures the joints are not damaged by the hostile environment.
The closure provides a sealed environment to ensure the integrity and reliability of the fiber optic connections. It allows technicians to access the cables and perform splicing or connectorization of the fibers inside. Fiber closures can come in various sizes and configurations depending on the number of fibers and the specific requirements of the network. They are an essential component in fiber optic infrastructure to maintain the performance and longevity of the network.
Generally, the splicing tray offered as accessories has two types: single side 12 cores type and double sides 24 cores.
Horizontal type fiber closure is like a flat or cylindrical case. This type of fiber splice closure is the most commonly used one in mounted aerials or buried underground. Horizontal type fiber optic closure usually contains one or more fiber splice trays to provide space and protection for fiber optic splices. Fiber splice trays used in different fiber optic splice closures may have different designs and fiber counts. The common fiber counts of flat fiber splice closure are 12 and 24 fibers.
Vertical fiber optic closure looks like a dome, thus it is also called dome fiber optic splice closure or fiber dome closure. The dome shape makes it easy to be buried in many applications, though it also can be used above-ground as well. Dome fiber optic splice closure requires high-levels seals and waterproof technology, due to its underground applications. Besides, keeping insects and dirt out is also important for underground closures.
Hybrid Type Fiber Optic Closure
The hybrid fiber enclosure is capable of securing network fiber regardless of weather, temperature, or location making it the most versatile of the enclosures. This flexibility allows for wall, aerial, or cell installations. In addition, a compact design allows for pedestal mounting and below-grade applications. Adaptability is another benefit to the hybrid enclosure with grommets to suit a 48 count feeder cable (72 count max) and up to 12 Flat, Round, ROCยฎ, or Speedflexโข drop fibers. The unit allows for grounding and can be pressurized if required.
