• Download Catalogue| Chinese| ENGLISH| РУССКИЙ РУССКИЙ
  • Download Preview
  • Latest News Company News Industry News Learning Center

    What is the Optical Fiber Splice Closure?

  • Learning Center    release time:2022-01-20
  • Optical fiber splice closure is a connection part that connects two or more fiber optical cables together and has protective components. It must be used in the construction of fiber optic network and is one of the very important equipment. The quality of the optical fiber splice closure directly affects the quality and service life of fiber optic network.

    Optical fiber splice closure, also known as optical cable splice box and fiber joint box . It belongs to the mechanical pressure sealing joint system and is a splicing protection device that provides continuity of optical, sealing and mechanical strength between adjacent optical cables. It is mainly used for straight-through and branch connections of overhead, pipeline, direct burial and other laying methods of optical cables of various structures.

    The optical fiber splice closure body is made of imported reinforced plastic, which has high strength and corrosion resistance. The structure is mature, the sealing is reliable, and the construction is convenient. Widely used in communications, network systems, CATV cable television, optical cable network systems and so on.It is a common equipment for protective connection and optical fiber distribution between two or more optical cables. It mainly completes the connection between distribution optical fiber cables and household optical fiber cables outdoors, and can install box-type or simple optical splitters according to FTTX access needs.

    Example 24 Cores Splice Tray 2 IN 2 OUT Mechenical Splicing.png

    Example: 24 Cores Splice Tray 2 IN 2 OUT Mechenical Splicing

    Internal structure of optical fiber splice closure

    1. The support frame is the main body of the internal components.

    2. Optical fiber cable fixing device, used for fixing the optical fiber cable and the base and fixing the reinforcing element of the optical fiber cable. The first is the internal fixation of the fiber optic cable strengthening core. The second is the clamping and fixing of the optical fiber cable and the support frame. The third is the sealing and fixing of the fiber optic cable and the inlet and outlet cables of the splice box with a heat-shrinkable sheath.

    3. The optical fiber placement device can store the optical fiber connectors and the remaining optical fibers in order. The length of the remaining optical fibers should not be less than 1 meter, and the labyrinth of the remaining optical fibers should not be less than 35mm. The storage tray can be multi-layered and has a larger capacity, and the storage tray can be adjusted according to the number of cores connected by the optical fiber cable.

    4. For the protection of optical fiber connectors, place the heat-shrinked protective sleeve on the fiber core fixing clip in the receiving tray, and the silica gel fixing method can also be used.

    5. Seal the optical fiber cable and the optical fiber splice closure. Use abrasive cloth to polish the junction of the optical fiber splice closure and the optical fiber cable at the cable entry point of the base. Clean the polished area with detergent, paste it with aluminum foil, and then put the heat shrinkable tube on the optical fiber splice closure. At the cable entry point, use a blowtorch to heat slowly from the middle to the two ends, so that the entire heat shrinkable tube can be completely shrunk.

    Optical fiber splice closure classification

    1. According to the shape and structure, it can be divided into two types, vertical optical fiber splice closure and horizontal optical fiber splice closure.

    2. According to the laying method of optical fiber cable, there are overhead, pipeline (tunnel) and direct buried types.

    3. According to the connection method of optical fiber cable, it is divided into two types, straight-through connection and split-fiber connection.

    4. According to the sealing method, there are heat shrinkable sealing type and mechanical sealing type.


    The role of optical fiber splice closure in FTTx

    The optical fiber splice closure is the place where the end of the optical fiber cable is connected, and then connected to the optical switch through the optical fiber patch cords to prevent the aging of materials caused by heat, cold, light, oxygen and microorganisms in nature, and has excellent mechanical strength, sturdy The outer casing and main structure of the optical fiber splice closure can endure the worst environmental changes, and at the same time play the role of flame retardant and waterproof, so that the vibration, impact, cable stretching and twisting are protected.

    The optical fiber splice closure is suitable for the straight-through and branch connection of various structural optical fiber cables such as overhead, pipeline, direct burial and other laying methods. The optical fiber splice closure is also suitable for the connection in the terminal room of the structured optical fiber cable. Optical fiber splice closures are usually suitable for indoor or non-open outdoor use, and are not suitable for outdoor use. If they are to be used, protective measures should be taken. Working temperature: Indoor type: -5℃~+40℃; Outdoor type: -20℃-+60℃. The optical fiber splice closure can play the role of protection and connection. The optical fiber closure body is made of reinforced plastic, which has high strength, corrosion resistance, mature structure, reliable sealing and convenient construction.

    Sopto technology is an experienced professional fiber networking solution provider. We can provide various types of optical fiber splice closures, such as vertical optical fiber splice closure and horizontal optical fiber splice closures,also includes different numbers of 12~288 cores. Welcome to contact us for more details.

    Tags : optical fiber splice closure, optical fiber closure, optical fiber cable, optical fiber joint

    —  END  —





    Shenzhen Sopto Technology Co., Ltd. All rights reserved