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Green Telecom is a company specializing in the production of communication equipment. Its main products include Fiber Optic Splice Closure, Fiber Closure, Inline Closure , DOME Fiber Closure.

Wiring is a very tedious and complicated task, but it seems that there is a general lack of knowledge and experience among the people who work in this work. From the market point of view, the capabilities and experience of the wiring staff are uneven. How can the team members successfully collaborate on a project and minimize the problems in the project?

1. Proactive planning of the overall network to achieve scientific wiring

2. try to use the same line, reduce multiple wiring

3. Effective management of the line

4. Do not let the cable interfere with the data line.

5. make the wiring away from the interference source

6. the wiring to consider the actual distance limit

7. the wiring must be in line with national regulations

8. always test the line

9. Follow industry standards to reduce negative impacts

10. Plan ahead for new lines in the future

If you want to know more about communication devices such as Inline Closure, please click here.


Specifically, the fixing method of the horizontal Fiber Closureis divided into fixing of a stainless steel screw and fixing of a plug. The cap type fiber sealing member adopts a hoop fixing box body. The hoop structure has two screw fixing structures and one surface screw fixing structure, and the quick fixing structure is horizontal type, and the fiber optic cable is selected to be closed corresponding to the number of installed and disassembled cables. Since the inlet and outlet of the cable are located on both sides of the case, the number of inlet and outlet cables is generally described as multiple inputs and outputs. It is a cap-type fiber optic closure because the inlet and outlet of the cable are distributed on one side of the housing, and the number of inlet and outlet cables is generally described as a plurality of inlet and outlet cables. Since the inlet and outlet of the fiber plug can be sealed by clogging or clogging, the number of inlets and outlets of the selected product is selected. It may be larger than the actual number of input and output cable ports used.

Select the appropriate specifications based on the type and capacity of the cable. That is to say, the optical cable is divided into two types according to the core structure, and the corresponding product is selected when the optical fiber is selected to be closed, and the horizontal optical fiber is not closed. The maximum capacity of the box can be used to meet the required capacity. When selecting the capacity of the fiber blockage, it must be selected according to the structure of the cable. In the continuous operation state of the monitoring device, the change of the power supply is normal. If the device requires a narrow input range, the device will inevitably work when the power supply changes, and may even cause damage to the telephone line distribution box, especially as a front-end device. The transmitter is usually installed in an outdoor equipment box. The on-site environment is relatively poor and lightning protection is very important. The quality of lightning countermeasures directly measures the probability of failure of the cable distribution box. Set the M-type horizontal fiber seal. Mounting accessories are sealing tape, overhead hook or wall fixing (choose one), emery cloth, ground wire, nylon cable tie, digital paper, desiccant.

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Green Telecom is a company specializing in the production of communication equipment, including Fiber Optic Splice Closure, Fiber Closure, Inline Closure, etc.

Optical cable connection is an important part of the construction of optical cable lines. The quality of optical cable connection directly affects the construction quality and affects the quality of optical communication. Improving the quality of optical cable connection is very important in line construction, so this article will address several issues that should be noted in the connection of optical cable.
1. Pay attention to the depth of the feed when the cable is stripped. The key to the stripping of the outer sheath of the cable is to master the depth of the sheath cutter, otherwise it is easy to break the fiber. In actual operation, the sheath cutter should be rotated while observing the incision. If the white polyester belt can be seen, the feed should be stopped and the cutter removed. This step is a skilled process and requires multiple exercises to master the depth of the infeed.
2. Fixation of the optical cable and stripping of the core bundle tube. After the cable is stripped, fix the cable in the cable connector box, open and strip the core tube, and prepare for the fiber fusion.
At this point you should note:
a) The core bundle tube cannot be twisted. Before fixing the optical cable, you must pay attention to the position of the core tube. When the reinforcing member passes through the fixing screw, the underside of the reinforcing member must be a filling beam tube. It cannot be a core tube. The core tube must be in the reinforcing member and enter the fiber. The same side of the receiving tray cannot be twisted on the reinforcing member. If the reinforcing member is pressed on the core bundle tube, the deformation of the core bundle tube will cause excessive loss, and the optical fiber in the core bundle tube will also be broken due to long-term stress, leaving a hidden danger to the project.
b) The length of the reinforcement should be appropriate. Once the position of the core tube is determined, the cable can be secured. The cable must be fixed so that the position of the fiber in the connector box does not become loose, and the fiber loss or fiber breakage problem may be avoided due to the movement of the cable position. The fixing of the cable is divided into the fixing of the reinforcing member and the fixing of the rest of the cable. The fixing of the reinforcing member should pay attention to its length, which is too long and cannot be placed in the joint box; it is too short, and it is not suitable for fixing the optical cable. Generally, when cutting the reinforcing member, the distance between the clamping plate of the fixing cable and the fixing reinforcing member screw should be equivalent to the remaining length. The rest of the cable is fixed after the reinforcement is fixed, and the clamp is screwed tightly and fixed tightly at the cable entrance of the connector box.
c) The length of the stripping of the core bundle tube should be appropriate. After the cable is fixed, the core tube can be stripped. If the stripping length is too long, it will reach the groove of the fiber heat-shrinkable tube, and the fiber will be damaged when the fiber is used. When the stripping length is too short, when the core tube is fixed, the fixing clip will be stuck on the fiber, which will easily damage the fiber. . Therefore, it is generally preferred to peel it off after two fixed bayonet mounts. In this length, the core bundle tube does not cause damage to the optical fiber and can be well fixed. However, when the clip is fixed, the clip cannot be over-tightened, otherwise the fiber of the core bundle tube will be lost due to the force, and the fiber will be broken after a long time, leaving a hidden danger to the project.

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Green Telecom specializes in the production of Inline Closureand will bring you this information so that everyone can learn more.

Cable installation
1. Select the seal ring with the smallest inner diameter according to the outer diameter of the cable, and place the two seal rings on the cable.
2. Place the fiber optic cable into the corresponding access hole.
3. Connect shield and ground.
4. Wrap a self-adhesive sealing tape between the two sealing rings so that the sealing tape is wound flush with the outer diameter of the sealing ring to form a cable sealing end.
5. Press the sealed end of the cable into the hole of the cable.
6. Pass the hose clamp through the cable rib fixing seat and the cable core bracket, fix the cable to the base of the joint box, and tighten the hose clamp until the hose clamp is tightened.
7. Put a nylon cable tie on the cable and cut off the excess length.
8. The remaining unused cable holes should be sealed with a plug. The sealing tape is also wound on the plug, and the requirements are the same as in 5.2.4.
9. Wrap the reinforcing member around the countersunk screw of the splice tray holder and press it tight.
Fiber optic connection
1. Prepare the fiber around the coil after 1.5 times of preparation, and then coil all the remaining fibers in the box.
2. Use a single-core buffer tube for the single-core fiber tray and a ribbon buffer tube for the ribbon-shaped fiber tray. Nail with a nylon cable tie at the entrance of the splice tray.
3. Dock two (belly) optical fibers according to the specified method. The connector is snapped into the slot of the fusion unit. The excess length should be coiled in the disk.
4. Cover the splice tray and press it into place.
5. According to the different capacity required of the joint box, determine the number of disks to be superimposed on the welding plate. The superimposed type of the welding plate must conform to the card-in welding unit of the fiber connector and check and maintain requirements. Each two welding plates are superimposed, and the rubber can be folded into six holes to respectively catch the three convex twists on the upper and lower plates; four rubber folding pages, two symmetric positions on each side of the disk, such as superimposed five For the splice tray, the two-layer disc and the three-layer disc are buckled according to the above method, the three-layer disc and the four-layer disc are buckled, the four-layer disc and the five-layer disc are buckled, and so on, and the five discs are stably stacked together. . When it is necessary to view or maintain the welding condition of a certain layer of disk, as long as the two folding sheets of the upper layer of one side of the disk are removed, the welding plate can be opened like a page.

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In order to prevent the Fiber Optic Splice Closurefrom entering the water, preventing exposure to aging and prolonging the service life, it is necessary to do maintenance work so that the incidence of problems can be effectively reduced.

There are a few things to keep in mind when maintaining the cable connector box: After each rain, the cable connector box is burned down, and the repair work will be very large. In fact, the cable connector box is easy to enter the water because the space inside the cable connector box is too small, there is no extra space to place the waterproof bend, and the 35mm power supply line is fixed with a plastic expansion tube, so that the waterproof measures are not in place, and the rain will follow. The cable is left in the connector box, and the terminal block is wetted. Because the gap between the terminals is small and the insulation effect is not good, it is easy to short-circuit.

In addition, the design of the cable connector box itself has surrounding heat dissipation holes and wiring holes, and the design originally used for the heat dissipation wiring becomes a defect at this time, and the cable connector box becomes easier to enter the water in rainy days. In this case, it is necessary to regularly check the maintenance cable junction box, press the wires in the cable connector box in time, and replace the damaged or aged wires in time. If there is not enough space, install the connection box in time to prevent too much internal wiring. The space is too small.

There is a lot of information about Inline Closurehere, if you are interested you can click to visit .


In any fiber optic system, connectors and connectors are critical and must be installed in a protective structure to ensure reliable system operation. This is true in optical splitters used in Fiber to the Customer (FTTx) installations. Fiber and cable management products must be properly designed for cable grounding, strain relief and fiber routing, and the most suitable application should be chosen. Before choosing the right type, you must understand each of the different types of features and features.

The fiber optic splice closure is made of engineering plastic with different port types for different fiber optic cables. Vertical fiber optic splice boxes for cable, telecom and fiber optic networks. Optical fiber connector box with high mechanical properties, high anti-aging ability, weather conditions have excellent sealing performance. They are suitable for protecting optical connectors in straight-through and branch applications. Related Fiber Trays and Connectors The protective sleeve is equipped with a vertical connector box. These products can be used for antenna, pipelines and direct buried cable projects.

Use the fiber optic splice closure throughout the network, including fiber mains, feeders, distribution, and last mile segments. When enclosing fibers with external plants, your enclosure needs to be: It is suitable for a variety of applications and environments, including antennas, pedestals, buried or underground. Designed to withstand the rugged exterior of walls, posts or hand holes. In addition, it must be compatible with most common cable types.

Fiber optic splice closureis the ideal product splicing cable.External device (OSP) enclosures handle pre-terminated cables, single splices, and large-scale splices. Fiber Closure is a mid-size to large round dome closure that provides a high degree of fiber capacity for antenna, underground, and direct burial equipment and provides an integrated routing (IR) or tubing fiber management system. It can double-stack the splice tray to provide splice capacity up to 1440 fibers (maximum version). The basic configuration of optical fiber closure has 28 round cable entries (ports) and 2 oval ports for cyclic applications.

Greentelftth is an integrated industrial and trade enterprise specialized in Inline Closure.


The cable splice box, also called fiber optic splice closure and barrel, is suitable for direct and branch connection of overhead cables, pipelines, and direct burial methods for various structural optical cables. The box body adopts imported reinforced plastics, which has high strength and corrosion resistance. The terminal is suitable for the connection in the terminal room of the structure optical cable, the structure is mature, the sealing is reliable, and the construction is convenient.

With the increasing popularity of fiber optic cable networks, fiber optic splice closures that provide reliable connectors for fiber optic cables are becoming known and familiar to everyone. There are a wide variety of fiber optic splice closures available in the market. The new name of the fiber optic splice closure is the optical fiber splice box, which is a passive device that provides reliable guarantee for the continuity of the optical cable.

It is divided into overhead, pipelines and direct burial in the occasion of use; the internal connection mode is divided into straight connection and split connection. The former is to connect two optical cables with the same number of cores, and the latter is to separate one large number of optical cables and one or more small number of optical cables to connect or multiple optical cables to each other. Backbone network is generally dominated by straight-through mode.

The access layer is mainly divided. The connection between optical fibers is divided into mechanical connection and heat-shrinkage connection. The former uses mechanical connectors to mechanically break and pass the optical fibers that need to be connected. The concentricity of the connectors aligns the cores, which use a fusion splicer to thermally fuse together the fibers that need to be connected and secured and protected by a heat-shrinkable sleeve. Since the latter produces little additional attenuation and has a small impact on the entire network, most of the current use of heat-shrinking connections increases the concentricity of the network.

GreenTel provides various shapes Inline Closure. All the closures we offered are with a great sealing performance. High quality plastic material also ensures the durability whether the closure is in air, in pipeline or buried underground.

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The Fiber Optic Splice Closureis a popular name. The scientific name is called the optical cable connection box, which is also called the optical cable connection package, the optical cable connector package and the barrel. It is a mechanical pressure sealing joint system, which is a continuous protection device that provides optical, sealing and mechanical strength continuity between adjacent optical cables. It is mainly used for straight-through and branch connection of overhead, pipeline, direct burial and other laying methods applicable to various structural optical cables.

The box body is made of imported reinforced plastic, high strength and corrosion resistance. The terminal box is suitable for connection in the terminal room of the structural fiber optic cable. The structure is mature, the seal is reliable, and the construction is convenient. Widely used in communications, network systems, CATV cable TV, fiber optic cable network systems, and more. The right side is a two-in and two-out connector box;

It is used for protective connection and fiber distribution between two or more optical cables. It is one of the commonly used devices for user access points. It mainly completes the connection between the distribution cable and the incoming cable, and can be connected according to FTTX. Need to install a box or simple optical splitter

1. Support frame: It is the main body of internal components.

2. Optical cable fixing device: used for fixing the optical cable and the base and fixing the optical cable reinforcing component. The first is the fixing of the cable reinforcement core inside; the second is the fixing of the cable and the support frame; the third is that the cable and the connector box are sealed and fixed by the heat shrinkable jacket.

3. Fiber-optic placement device: The fiber-optic connector and the remaining fiber can be stored in sequence. The length of the remaining fiber should be no less than 1 meter, and the remaining fiber diameter of the fiber-optic disk should be no less than 35mm. The storage tray can be four layers, the capacity is large, and the storage tray can be adjusted according to the number of cores connected by the optical cable.

4, fiber optic connector protection: the heat-shrinkable protective sleeve placed on the core holder in the receiving tray can also be used to fix the silicone.

5. Sealing the optical cable and the joint box: sand the joint between the joint box and the optical cable with the abrasive cloth on the cable and the base cable, wipe the sanding place with the cleaning agent, paste the aluminum foil, and place the heat shrinkable tube in the joint box. At the entrance of the cable, the burner is slowly heated according to the middle and rear ends, so that the entire heat-shrinkable tube can be completely contracted.

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The most significant element of the present-day world of communications is fiber optics. Fiber Optic Splice Closure has also become an indispensable part. An ever-increasing number of networks responsible for data communication depend on fiber optics for their effective and successful operation. Optical cables essentially form a part of wide area networks of buildings and campuses.

The principle on which fiber optics works is light. Fiber cables contain plastic or glass filaments, which depend on light signals for the transfer of data from one point to another. Light has a very appealing feature: it can travel more rapidly compared to electric current, which has traditionally been employed in the field of communication. Characteristically, optical fibers are quite fragile and thus get contaminated in many ways: through dust particles, through the presence of oils and buffer gel. So they must remain clean and tested after installation in order to ensure an uninterrupted flow of light.

Compared to the usual copper cables, the expense for the installation of optic cables is a bit greater, needing especially designed tools of superior quality for the process of installation. Because of their functionality, the demand for these cables is sure to increase in the foreseeable future. It is worth investing in the appropriate equipment of good quality, as that would prove economical in the long run. If you like to have an edge over other competitors in the field of communication, you should be prepared to invest and use superior kits.

Test equipment: You can get a wide range of kits for executing various jobs connected with the fiber optic industry. Here are some of the most frequently needed kits: fusion splicing tool kit, fiber optic testing tool kit, optical cleaning tool kit, quick termination connector tool kit, and traditional epoxy and polish connector termination tool kit.

You should make a careful assessment of the kit that would meet with your requirements for testing fiber optics, while keeping your budget in mind. It would be good to seek the opinion from professionals in the field of installation, maintenance and the inspection of fiber optic cables. You should also ensure to select a reliable company for making the purchase of the needed equipment. You will surely find the Internet of great help. You may also talk to people who already in the same business.

Fiber Cleaning Tools : The list of tools for the cleaning purpose comprises of:

1. Fiber optics launch cable: It's a cable box, employed for testing fiber cables when using an optical time domain reflectometer.

2. Fiber microscope: This testing equipment is used to ensure that unmated connectors are free of contamination and the face is properly finished. It must be ensured that the connected devices are clean before coupling.

3. Fiber patch cord: This fiber cable is used for making patch cords from various pieces of equipment, such as the receiver, transmitter and terminal box to the cables.

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Green Telecom Fiber Optic Splice Closure and Fiber Optic Cabinet are are of superior quality. Fiber Optic Cabinet are exposed to electrical, mechanical, chemical and environmental elements, so proper installation is critical for the long-term stability and survival of fiber cables.

Cable installation must also meet the NEC(National Electric Code) and local building codes. NEC indicates that fiber optic cables can be placed in the same raceway, cable tray or enclosure with CATV, telephone, communication circuits and Class 2 and 3 remote control signaling circuits.

Note that you should never put the fiber optic cable in the same enclosure that houses electrical terminations.

What are conduits?

Conduit is a tube or trough for protecting electrical or communication wires and cables. It may be a solid or flexible tube in which cables are run. They house and protect the fiber optic cables as well as any other type of data or communication transmission line.

Underground conduits are also called ducts and consist of one or more conduits spaced closely together. They are often buried directly in the ground in concrete casing. Duct lines terminate in underground vaults called manholes. Conduits are made of fiber, PVC, PE and other materials.

Above ground conduits are made of metal or nonmetal materials. They can be used in exposed or concealed locations aboveground.

Characteristics of a good conduit installation

1.Good mechanical properties to withstand the forces imposed by cable installations

2.Observes fiber optic cables minimum bending radius

3.No sharp edges or bends touches the fiber optic cables throughout the route

4.Meets current and future expansion requirements

What are cable trays?

A cable tray is an assembly of units made of metal or other noncombustible materials that form a continuous, rigid support for fiber cables. Cable trays are used throughout the industry and they greatly simplify the installation of fiber optic cables.

Cable trays come in several different types including ladder type, trough type, channel type and solid-bottom type.

Ladder type cable tray is a metal structure consisting of two longitudinal side rails connected by individual transverse members. The transverse members provide the support for fiber cables.

Trough type cable tray is also a metal structure. It consists of a ventilated bottom and has closely spaced supports within integral or separate longitudinal side rails.

Channel type cable tray consists of a one-piece ventilated or solid-bottom channel section.

Solid-bottom type cable tray is a metal structure that has no openings in the bottom. Integral or separate longitudinal side rails provide the support for the fiber cables.

What are pull boxes?

Pull boxes are used to break up long conduit lengths for easier and lower tension cable pulls.

Pull boxes are usually placed near conduit bends and in long straight runs. You should use at least one pull box after every second 90° bend and in long conduit spans.

When pulling cable out of pull boxes, ensure that the cable's minimum bend radius is always observed. Cable pulled through a corner pull box should first be pulled into a loop since the sharp corner of the pull box can easily damage the cable and the fibers.

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