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The Fiber Optic Splice Closure connector design listed above is very basic. There are industries that require special connector designs though. One design is identified as the subminiature Type A or SMA. This is one that highlights the ostensible screw-on mechanism. This kind of connector has different designs, for instance, some with straight screw connectors while others with smaller connection mechanisms found on either ends of the connector.

An additional kind of connector for Fiber Optic Splice Closures is recognized as the straight-tip or ST connector. This one depends on a bayonet mount lock, a flexible link that can either be separated then refastened with much ease. Of course, the square connector or SC is also highly chosen especially because it prevents crossing of fibers during installation. This one is easily discernible to the user as it has a square tip.

Clean the Fiber Optic Splice Closures

When cleaning the various parts you should take care that you don't allow the cleaning alcohol to evaporate off the ferrule. This is to prevent having a residual material on the fiber core and cladding. If you let the alcohol evaporate you will have a difficult time removing the cladding. In most cases you will be forced to use the wet cleaning method which as mentioned above, can easily result in damage of the different parts.

When cleaning the different parts take caution that you don't touch the parts. In addition to leaving marks on the parts thus making it difficult for you to clean the box, you also risk collecting harmful glasses that might injure you.

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Green Telecom always adheres to the communication industry and contributes to the development of the communication industry. The company's main products are Fiber Optic Splice Closure and Inline Closure.

The Fiber Patch Panel is a wiring connection device between an optical cable and an optical communication device or between an optical communication device. The fiber optic patch panel is used for the end-to-end and distribution of the backbone cable in the optical fiber communication system, which can easily realize the connection, distribution and dispatching of the optical fiber line. With the increasing degree of network integration, there have been set ODF, DDF, power distribution unit in one of the number of light mixed patch panels for fiber to the district, fiber to the building, remote module and wireless base station in the small and medium-sized Line system.

There are three types of fiber patch panels. Unit-type fiber patch panel is installed in a rack a number of units, each unit is a separate fiber patch panel. This patch panel not only retains the original characteristics of small and medium-sized optical fiber patch panel, but also through the structure of the deformation of the rack, providing space utilization, is a large-capacity optical fiber distribution frame early common structure. But because of its inherent limitations in the provision of space, in the operation and use of a certain inconvenience.

The drawer's fiber patch panel also divides a rack into multiple units, each consisting of one or two drawers. When the welding and transfer line, pull out the corresponding drawer to operate outside the frame, which has a larger operating space, so that each unit does not affect each other. The drawer is provided with a locking device in both pull-out and push-in conditions to ensure safe and reliable operation and use of devices within the unit.

Modular structure is the fiber optic patch panel is divided into a variety of functional modules, fiber optic cable splicing, transfer lines, cable storage and other functional operations, respectively, in the module to complete, these modules can be combined according to the need to install a common rack Inside. This structure provides maximum flexibility to better meet the needs of the communications network.

The selection of fiber optic patch panel is an important and complicated work, all localities should be based on the specific circumstances of the local, taking full account of various factors, in a serious understanding, repeated comparison on the basis of a best to meet the current needs And the future development of fiber optic patch panels.


As you konw, greentelftth is a professional DOME Fiber Closure manufacturer, we offer high-quality and different types of closure. So you need to konw the types of greentel closure before you purchasing it from

Basic Closures

At its simplest, a closure joins one length of fiber cable to a different length of the same type of cable. This is sometimes known as in-line closure or track joint. Added functionality is provided by a spur (or branch) joint which divides the cable into two ongoing parts - the main cable and a side or spur cable. There are also end of route closures where the cable is broken out into individual elements for customer or telco connection.

The earliest fiber closures were direct descendants of their copper cousins. The simplest in construction (but not to use!) were wrap-around heat-shrink products, most usually just in-line closures but sometimes branch joints. Although they could be made water resistant they had few other benefits (except low cost) and often required a skilled jointer to apply them.

Tube Distribution Closures

With the widespread adoption of blown fiber and cable systems which use multiple microduct bundles, tube distribution closures have become prevalent. As the name suggests these either create an in-line microduct track joint or, more commonly, branch off individual microducts to different destinations. Instead of fiber jointing occurring in the closure, individual microducts are joined together by purpose-made push fit connectors that in themselves are designed to be water tight. This has enabled the closure to be of simple design, without the need for expensive seals and is easily assembled in the field.

Dome Fiber Closures

Probably the most common type of closure is now the ‘dome’ closure, which comprises a base with cable port inlets, a stack of splice trays and a removable dome cover. The advantages are:

The format is easily sealed to IP68, yet the dome can be removed in seconds for re-entry.

Many configurations of base can be produced within the same overall footprint

By using different domes closures can be expanded to add in more splice trays.

However, having a robust outer casing is only half the challenge. The other 50% is to contain and organize the fiber-to-fiber jointing function. In general, optical fiber cables are comprised of cable ‘elements’ (commonly loose tubes or ribbons). So a 144 fiber cable comprises twelve 12-fiber ribbons or twelve 12-fiber loose tubes. A ‘single element’ splice tray therefore houses an entire cable element’s worth of fibers. This arrangement is well suited to in-line (track) closures. The fibers are stored for long term survivability with no expectation that the closure is an intentional point of intervention. However, for branch (spur) there is often the intention to go back to the closure repeatedly to add, subtract or re-route individual circuits. Then it is beneficial to store a ‘single circuit’ on one splice tray. Using this approach individual customers can be connected without disturbing existing circuits.

Maybe you can tell us what your need, we will recommend the suitable fiber closure for you as soon as possible.

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Fiber is a shorthand of optical fiber, is a glass or plastic made of fiber, can be used as a light transmission tool. Is now commonly used long-distance networking materials. If the long-distance network failure, if you can not quickly determine whether the fiber failure, for the emergence of network failure, will greatly delay the troubleshooting time.GreenTel not only produces Fiber Optic Splice Closure, Fiber Closure, but also brings you knowledge about this.

In general, common fiber failure equipment failure, such as fiber optic box. Fiber optic equipment is mainly due to signal output distortion caused by the transmission process of signal distortion, making a large number of signal loss. Often, the associated output characteristics are affected by temperature and related factors. Whenever the bias current and light intensity changes to a certain extent, the actual electrical output curve of the corresponding working range will change, resulting in the signal up and down the process of moving, the signal is caused by interference loss.

The main faults of fiber optic box that can be measured at present can include fiber failure and fiber optic cable fault, coupler link failure. Specifically, it is also possible to refine the pigtail failure to the actual corresponding radius of the pigtail bending, the pigtail break, and the dust at the flange of the flange. Fiber optic cable fault, including the total cable attenuation is too large and line disruption.

With the rapid development of China's economy, people's demand for communication technology is getting higher and higher. In the communication system, the integrated use of new communication equipment is more able to meet the needs of the development of the times. Among them, the promotion of fiber optic box is particularly prominent, for equipment failure analysis and routine maintenance work, maintenance personnel have an important responsibility, the normal operation of the equipment plays a key role. So we often check whether the fiber optic box occuring error.

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Green Telecom Technology Co.,Ltd is professionally engaged in the integration and service of customized projects of deployment and detection of optical communication network. The main products are Fiber Optic Splice Closure, Inline Closure, Fiber Closure, etc.

Fiber PLC Splitter is an integrated waveguide optical power distribution device based on a quartz substrate. As with a coaxial cable transmission system, optical network systems also need to couple, branch and allocate optical signals, which requires optical splitter. It is one of the most important passive devices in the fiber optic link. It is a fiber optic remover device with multiple input terminals and multiple output terminals. It is especially suitable for connecting to the passive optical network (EPON, GPON, BPON, etc.) And the terminal device and realize the shunt of the optical signal.

Fiber PLC Splitter has bare fiber type, miniature (steel pipe / module) type, ABS box type, with branch type, tray type, insert type, rack type and so on.

Rack-mounted is installed in the 19-inch OLT cabinet, the fiber branch in the home, the installation of equipment is a standard digital cabinet. Bare fiber is installed in various types of pigtail box or installed in various types of test instruments and WDM system. Splitter type is installed in various types of optical equipment or installed in various types of optical test instrument. The plug-in is a user access point for FTTX system in the FTTX system. It mainly completes the cable entry into the cell or building. It has the functions of fixing, stripping, splicing, jumpering and shunting of the fiber. The form of the optical cable into the end user.

Fiber PLC Splitter can meet the needs of different wavelengths of transmission, and evenly distributed, the signal can be evenly distributed to the user. It is compact, small size, can be installed directly in the existing variety of transfer box, no special design to leave a large installation space.

However, the device production process is complex, the technical threshold is higher, the current chip is a few foreign companies monopoly, the domestic large quantities of packaging production enterprises are only a few. Compared to the cost of the melt-pull tapered splitter, especially in the low-channel splitter is more at a disadvantage.


The reasons for the failure of the Fiber Optic Splice Closure test are roughly divided into the following categories: First, the structural design, the bonding between the tape and the PE sheath is not tight; second, the process parameters in the injection molding process are not well mastered, resulting in a partial permanent size difference, and The sealing rubber at the joint is easy to form excessive extrusion or collapse at this time. In severe cases, cracking and brittle fracture of the product may occur. Third, the quality of the sealant is not good. Fourth, the PE sheath is not ground into a pockmark during installation. Also, no sealant was applied, and the head of the self-adhesive tape was not stretched tightly, and some tapes were insufficiently wound, and the outer diameter was fine without being pressed.

In addition to the above problems, we found some problems in the fiber optic splice closure. First, the internal space is small and cannot meet the requirements of the standard. The remaining fiber length is not less than 1.6m, and the radius of curvature of the remaining fiber disk is not to be less than 30mm" requirements, if the fiber is placed on the disc, the split lid is not on; the second is the lack of accessories to be configured, such as the amount of sealant is too small, can not complete the seal as required; lack of fiber splice protection tube, horizontal fiber optic splice closure seals the retaining ring.

In actual use, the fiber optic splice closure still has the following problems, which seriously affects the network quality and user experience. The specific problems are as follows:

1. The fiber optic splice closure is deformed and broken. In practical applications, some of the fiber optic splice closures have cracked the box, or the box is deformed and aged after being used for a period of time.

2. The accuracy of the fiber optic splice closure is not enough. In the actual application, after the cable is connected, it is necessary to seal the box and find that the bolt cannot be tightened, resulting in the sealing property not meeting the requirements.

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The Inline Closure provides environmentally protected sealing on splices of fiber optic cables. In addition, the unit provides excellent cable strain relief and space for excess buffer tube storage. It can be installed with all common cable sheaths and is suitable for buried, duct and aerial applica-tions. Due to its compact design, it is ideal for the connec-tion of low to medium distribution cables. The ease of open-ing and closing makes this closure ideal for access net-works.

Because the body of the closure consists of two half shellsmade ofplastic resistant against all environmental influences. So it Suitable for buried, duct and aerial lines For straight and branching application Fast and easy access to individual splice trays Capacity for up to 60 splices Closure ealing made of re-usable silicone Suitable for ordinary fiber and ribbon fiber.Fully kitted with all parts for convenient operation.Overlap structure in splicing tray for easy installation.Fiber-bending radium guaranteed more than 40mm.Easy to install and re-entry with a common can wrench.

Excellent Anti-removable Screw Opening Type to protect fiber and splice ensuring durability.Stand up to severe condition of moisture,vibration and extreme temperatures.High Quality plastic body material ensure the durability Suitable for Φ8mm~Φ20mm cables Aerial, underground, pipeline,man-holes,hand-holes assembling Adapt to the ambient temperature from -40℃ to +65℃.

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As a manufacturer and supplier of excellent Inline Closure and Fiber Optic Splice Closure, GreenTel will provide you with this knowledge from time to time.Different systems have a functional unit, can improve the efficiency and practicality of this system. In the case of cabling, the ODF patch panels represent the functional units without them, the transmission of data becomes invalid. Ideally, patch panels integrate all horizontal cabling into any infrastructure. They allow the termination of lengthy and cumbersome cables in order to connect the signal directly to the destination via patch codes.

ODF patch panels are a major part of collecting data and routing it to a predetermined destination. In the event of a patch panel failure, the entire system may fail, which explains their importance. Patch panels are located in the telecommunications portion of the building for easy management of the telecommunications network. Distribution frame can be used for optical fiber and copper cabling system. Although some people consider that there is little difference between copper and fiber systems, it is well known that fiber panels are more expensive.

Fiber optic panels require two ports for a pair of wires. One port is for the sender and the other is for the receiver. Although fibreboards tend to be faster than copper, this does not diminish the latter. The main function of the patch panel is to direct the signal rather than moving the signal at a specific speed.

Whenever you think of a patch panel, the ports are all central components. They are the physical connection points for data to and from the panel. Patch panels typically have up to four or eight modules, each with eight ports. This brings a total of 32 and 64 ports. However, this limitation is not supreme. Some panels may have a maximum of 1,536 ports, primarily for backbone cables.

Fiber Closure Manufacturers are now managing cable efficiently while designing ODF patch panels. Some manufacturers have developed front panels that allow users to terminate and manage cables from the front end. Patch panel installation is relatively easy, but requires professionalism. Sometimes the terminal is tight, which makes cable management difficult. In order to make the installation easy and the entire system effective, a specific technique is required. Care must be taken when installing the fiber optic faceplate. If the glass is moved too much during installation, signals from adjacent fibers may be affected. The bending radius must also be observed during the installation of the fiber optic cables to the panel.


With more and more applications of the Internet, the amount of data that needs to be processed is increasing, and the equipment required by the computer room is also increasing. However, the area of the equipment room is fixed. With the continuous increase of cables, many network administrators are faced with dense inline closures and limited space in the equipment room. How can the machine room be neat and the inline closure be well-organized?

The original room wiring used traditional inline closures. It was difficult to see where to start and replace the traditional distribution frames. The traditional distribution frame has many shortcomings, it is inconvenient to maintain, and it will bring security risks. Here are some points:

Not intuitive. Most of the traditional patch panels are paper, and the quality of the paper is uneven. Labels are handwritten and organic; colored, black and white; need to open the cabinet close to see clearly. If the time is long, due to the environmental reasons of the engine room, such as artificial wear, air humidity and other factors will make the label become more difficult to identify, causing inconvenience to managers.

Inconvenient maintenance. All the patch panel ports need to be tagged and the workload is high. Second, in the maintenance, it is inconvenient to find and change. If you want to jump, first check the file, find the port to jump, that is, a row, a column on the corresponding cabinet. Also, label stickers are easy to drop, dirty, and old, leading to inconvenient search and wasting a lot of time and manpower.

More security risks. The cables are complex and lack of planning, which can easily block the hot and cold channels and seriously affect the cooling and cooling of the equipment room. There is no safe and reliable implementation of cabling wiring, increasing the possibility of faults and downtime.

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