Greentel Fiber Closure’s Working Principle

The domestic communication engineering is constantly expanding, driving the update and enhancement of optical communication equipment. The Fiber Closure and optical cable terminal box win the latest domestic communication engineering such as China Mobile, China Telecom, China Unicom and China Tietong with high quality products and low price. Maintenance material approval! Serving the field of communication and achieving good results.

There are many types of greentel fiber closure. The box body is made of imported reinforced plastic. It has high strength and corrosion resistance. The terminal box is suitable for connection in the terminal room of the structural optical cable. The structure is mature, the seal is reliable, and the construction is convenient. Today, we talk about some of his working principles around the two-in and two-out cable connectors.

The two-in and two-out greentel fiber closure are used for protective connection and fiber distribution between two or more optical cables. They are one of the commonly used devices for user access points, mainly for wiring fiber optic splice closures and household line cables. Connection and installation of a box or simple optical splitter according to FTTX access needs

The two-in and two-out Fiber Closure Tel body adopts high-quality engineering plastics; the second-stage cable-cable technology ensures that the fiber in the box has no additional attenuation; provides the space for the cable terminal to be placed and the remaining fiber storage space, and the installation operation is convenient; Multiple reuse and expansion functions.

Number of cores: 12/24

Maximum splice tray: minimum capacity 4 cores maximum capacity 144 cores.

Maximum number of splice trays: 6

Stretch tightness: 2000N axial tension, no air leakage.

Stretch seal: After the product is inflated, it can withstand 2000N axial tension without air leakage.

Impact Seal: After the product is inflated, it can withstand the impact energy of 16N*m (Newton*m) three times. The product has no cracks and no air leakage.

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Fiber Optic Splice Closure Uses High Quality Insulation Material

At present, greentel Fiber Optic Splice Closure has a wide range of applications, but the insulation problem of the fiber optic splice closure has always been a big problem, and the appropriate choice is made based on the dielectric properties and the degree of plasticity of the material itself. Therefore, the structure, material, and surface condition of the insulation also have a great influence on the withstand voltage strength performance of the fiber optic splice closure.

Reasonable insulation material is the fundamental guarantee for withstand high voltage DC breakdown. Therefore, the structure, material, and surface condition of the insulation also have a great influence on the withstand voltage strength performance of the fiber optic splice closure.

In order to improve the withstand voltage performance of the fiber optic splice closure, better insulating materials must be used to increase the surface finish and reduce the curvature between the insulator and the pole and pole and between the pole and the ground. With other parameters being the same, this situation can be increased by at least 100%.

The fiber closure is an indispensable and important part of the optical cable communication line. The main function is to realize the connection of the optical fiber cable, and at the same time, to ensure the grounding function of the fiber optic splice closure, the internal grounding device and the grounding portion of the optical cable must be electrically connected, and the metal component of the fiber optic splice closure and the grounding device and the cable reinforcing core are ensured. Insulate from each other to avoid adverse effects from the environment on the cable splice closures.

Since the environment in which fiber optical are used is basically outdoor, their use environment may be buried, overhead, or pipeline. Therefore, higher requirements are placed on the design of the fixing and grounding devices of the fiber optic splice closure and the insulating materials used.

How to Fix the Fiber in the Fiber Optic Splice Closure

Greentel Fiber Optic Splice Closure includes a connector body, a front and rear dust cover, an extrusion sleeve, and the like. The front part uses a ceramic tube with a very light connection surface to ensure the contact of the optical fiber and improve the durability. An elastic sleeve at the rear prevents the fiber from being torn.

Fiber optic splice closures are widely used today. It is precisely because of the development of optical fiber communication technology and the coverage of the national network. The requirements for fiber optic splice closures are also gradually increasing. There are also requirements on the length of the reinforcing elements for fiber optic splice closures, and the length of the reinforcing parts is required. Suitably, if the fiber optic splice closure reinforcement is pressed on the core bundle tube, the core bundle tube will be deformed by force and cause excessive loss, and the optical fiber in the core bundle tube will also be fractured due to long-term stress, leaving the project with Hidden danger.

The fixing of the optical cable must ensure that the position of the optical fiber in the fiber optic splice closure does not loosen, thereby avoiding the increase of optical fiber loss or the problem of fiber breakage due to the displacement of the optical cable. The fixing of the optical cable is divided into fixing of the reinforcing member and fixing of the rest of the optical cable.

The reinforcement must be fixed in its length. It is too long to fit in the fiber optic splice closure; it is too short to fix the cable. Generally, when cutting reinforcements, the distance between the clamping plate of the fixed cable and the screws of the fixed reinforcement should be equal to the length of stay. The rest of the fiber optic cable is fixed after the reinforcements are fastened, tighten the clamping plate with screws, and tightly fix it on the fiber optic cable inlet of the joint box.

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The Main Composition of the Fiber Optic Splice Closure

Fiber optic splice closure:for the connection of ADSS, OPGW and ordinary optical cable, 2-4 optical fiber cable introduction sets are used to introduce and extract the optical cable for connection. It can also be used for the connection of urban cable communication cable.

Fiber optic splice closure features: fixed optical cable stainless steel clamp and fixed aramid and the special design of the core to make the fiber cable fixed more firmly, loose fiber space makes the fiber more convenient and fast, so that the optical fiber has enough bending radius to avoid Optical fiber extra loss to ensure transmission characteristics. The double seal design makes the joint box sealing performance more reliable. The installation and fixation on the tower and in the pipeline are very convenient and reliable.

Fiber optic splice closure is suitable for installation and use of overhead, pipeline, and direct burial methods in communication and radio, television and optical cable lines.

The core can be flexibly connected in any way in the box, such as grouping, divergent, expansion and straight-through. The optical fiber cable connector can be protected by a heat-shrinkable tube after being connected, and it can also facilitate the storage of the optical fiber bare fiber.

The fiber optic splice closure is mainly composed of a box cover, a base, internal components, a sealing element, and a fiber connector. Good sealing performance, reusable, reliable installation, convenient operation and maintenance testing.

Scope of application: The fiber optic splice closure is continuously improved and perfected according to the requirements of the user, providing quality assurance for excellent voice, image and data transmission. Can fully meet the needs of fiber optic cable trunk and distribution cable network, but also to meet the cable overhead, buried directly underground, building entrance wall, pipe and manhole installation and construction requirements.