Category Archives: Fiber To The Home

A compelling treatment of FTTH

how mpo/mtp cable to be tested

To understand the challenges of MPO cable validation, it’s necessary to understand MPO cables and how they’re tested in the field. An MPO connection is about the size of a fingernail and contains 12 optical fibers, each less than the diameter of a human hair – and each one needs to be tested separately. That traditionally means the use of a fan-out cord to isolate each fiber, followed by tedious manual testing, tracing, and error-prone calculations.

Testing and determining fiber polarity is another challenge. The simple purpose of any polarity scheme is to provide a continuous connection from the link’s transmitter to the link’s receiver. For array connectors, TIA-568-C.0 defines three methods to accomplish this: Methods A, B, and C. Deployment mistakes are common because these methods require a combination of patch cords with different polarity types

So what would a proper MPO test look like? The answer is simple: Test all 12 fibers – the whole cable – simultaneously and comprehensively (including loss, polarity, etc.). That sort of test capability changes the fiber landscape, enabling installers and technicians to efficiently validate and troubleshoot fiber – flying through the process by tackling an entire 12-fiber cable trunk with the push of a button.

The tools to perform this type of test are just emerging on the market, and promise to reduce the time and labor costs up to 95% over individual fiber tests (according to internal research based on the average list of standard competitive products). Characteristics to look for in such a tool include:

An onboard MPO connector to eliminate the complexity and manual calculations associated with a fan-out cord.
A single “Scan All” test function that delivers visual verification via an intuitive user interface for all 12 MPO fibers in a connector.
Built-in polarity verification for end-to-end connectivity of MPO trunk cables.
“Select Individual Fiber” function that enables the user to troubleshoot a single fiber with more precision.
Demand for fast and reliable delivery of critical applications is driving data center technology to evolve at an ever-increasing pace. And that insatiable need for bandwidth ensures that the integrity of the data center has become inextricably linked to the strength of the fiber cabling infrastructure. The growing use of MPO fiber trunks – and the migration from 10-Gbps to 40/100-Gbps connections – means that it’s time to stop the cumbersome verification of individual fibers. After all, it’s a single MPO connection. You should be able to test it as one.

You can buy fiber optic jumpers with mpo/mpo connectors  from FiberStore now!

Municipal Fiber optic networks

The city where I live, Palo Alto has a long tradition of providing municipal utility services (that is, electricity, water, gas, etc) to its residents. For the past several years the city has been considering implementing a municipal fiber optic system which would permit residents to have fiber optic cable link directly to their houses which provided television, telephone and Internet services (at very high bandwidths). Naturally, the incumbent service providers (cable and phone) strongly lobby against such moves (for precisely the same reasons these companies wish to be monopolists in the first place.) The incumbents have sabotaged municipal FTTH fiber efforts in the past — specifically in the “tri-cities” region in Illinois, around the far west suburbs of Chicago.

In this Sunday’s Mercury News, there’s an article which discusses the city’s plan to make a final feasibility study of the project and a recommendation to the city council. Even if the city council votes in favor of the project, there will be a city wide referendum, since fiber optic cable prices would require millions of dollars in bonds to finance.

As a resident of Palo Alto, as well as a technology advocate, I’m rather strongly in favor of such a move by the city, even though it carries some financial risk (if the fiber optic plan flops, the city would have to raise its rates for other utilities).

At last there might be a means of transmission which is separated from the fiber optic cable providers, something that the local cable and phone companies absolutely refuse to provide.

Imagine a network with massive amounts of bandwidth where multiple companies competed to send content down that connection to a consumer. How would this be anything but a win-win situation for everyone? The city sells the bandwidth to many different companies, consumers have lots of choices in content providers, and the content providers are collecting revenue for their content — and that’s the whole point anyway isn’t it?

SOURCE: http://it.toolbox.com

Tips To Clean Fiber Optic Connectors

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Fiber Connectors are susceptible to be damaged which is not immediately obvious to the naked eye. The damage can have significant effects on measurements. Member any degradation of a fiber ferrule or fiber endface, any stray particles or finger oil on the endface, can have a significant effect on connector performance.

Fiber optic connector and connector ferrules have to be completely cleaned to make sure the trouble totally free working of fiber optic systems. As you’ve devote superior money installing a fiber optic, you might want to opt for a world course fiber optic connector cleaner and bnc coaxial connector to help keep it in superior shape.

Well, cleaning fiber optic connector can be done either with the help of a professional service provider or with the help of DIY kits. Below are a couple of time-tested methods.

1. Use Wipes And Solvents

This is probably the most widely used method of cleaning for the fiber optic parts. Cotton, cloth or lens paper is usually used for using this technique. Fabric and/or composite material wipes provide combined mechanical action and absorbency to remove contamination. Wipes should be used with a resilient pad in order avoid potential scratching of the connector end-face. Most solvents can provide good cleaning for the surfaces and tend to leave a slight residue that evaporates after a while.

This method is appropriate for cleaning connectors with exposed ferrules or termini but cannot be used to clean connector end-faces within alignment sleeves. The wipe should be constructed of material that is lint free and non-debris producing during the cleaning process. Please note that dry wipes have been shown to leave a static charge on the end-face of the connector which can thereafter attract particulate contamination. Therefore it is recommended that a static dissipative solvent be used with a dry wipe to eliminate this condition.

If the connector is not clean after the first cleaning, the process can be repeated perhaps with slightly more pressure on the connector to increase the mechanical action and perhaps making several stokes from the damp to dry sections of the cleaning material.

2. Cleaning Through Connector Reels

Optipop and Cletop are the most widely used reel connectors that are used in the industry for proper cleaning solutions. These work on the function of a resilient pad, sliding dust cover as well as a certain mechanism that tends to keep these small parts of the gadget working known as the ratcheting mechanism. The connector is inserted into an fiber microscope. This is done to check how clean the connector is.

About Solvents

Solvents used to clean fiber optics should be static-dissipative and residue-free. Many solvents are flammable and/or packaged so that transportation of the solvent is considered a hazardous material increasing cost of shipment and storage of the solvent. However, there are solvents available that are non-flammable and non-hazardous and packaged so that shipping requires no additional fees or paperwork.

Mind:

The methods require technical skill and expertize, it is advisable to trust the best in line professionals for fiber optic cleaning. Professional groups will not only ensure that your connectors are taken good care of, but also will prevent any sort of technical failures due to improper cleaning techniques.

Fibre Optic Connectors in FTTD Applications

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Because of major national policy support, to develop the field of fibre optic products, optical fibre gradual decline in the price of the cost, fibre optic installation and construction are also increasingly simple and convenient, plus high-bandwidth optical fibre, a wide range of applications, from external electromagnetic interference and prevent signal leakage, etc., fibre optic system solutions increasingly facored by customers. FTTx is the use of optical fibre as a transmission channel network physical layer information media, mainly as a network of broadband access. x represent different scenarios applications generally include the following:

1. FTTC (Fibre To The Curb/Cell) is mainly for residential service, ONU telecommunications equipment installed in the side of the road junction box, through the coaxil cable extending from ONU transmission CATV signal, twisted-pair copper networks to transmit voice and fibre optic splice mode signal.

2. FTTB (fibre to the building) service object has two types, one is an apartment building home users, the other is the commercial building companies or business units. ONU devices are generally placed on the bottom into a building (such as the basement), where apartment buildings may be FTTC ONU extension; while commercial buildings because it is a company or business office services enterprises, so that the network transmission performance requirements are higher, network stability and security requirements more stringent.

3. FFTH (Fibre To The Home) optical fibre directly extended to all home users, all-digital network services, to provide users with a varitey of life and enterainment services, such as a doctor at home, online shopping, video on demand, remote training.

4. FTTD (fibre to the desk) refers to the fibre completely replace the traditional copper twisted-pair transmission medium extends directly to the user terminal (such as office computers, printers, etc.), the user terminal to achieve full network access through fibre, improves network transmission bandwidth, extending the transmission distance, and enhance the stability of the network and information security.

The main impact of the test fibre system performance parametres – decay, in addition to the quality of their products with the relevant cable, the most important is the construction and installation process.

1. Fibre polishing method: through on-site hand-grinding, with epoxy adhesive curing, the connector assembly steps to complete the cable connection. Now the basic fibre polishing method should not be adopted, because this way the construction workers demanding technical level, and for the present single-mode systems, Gigabit multimode networks, grinding mode is difficult to achieve, unstable performance.

2. Fibre splicing method: it works by fibre alignment system to align the ends of optical fibers, the use of high-temperature high-pressure arc discharge tip of the principle and performance of fiber-optic high temperature melting, so that fibre splicing together to obtain low loss, low reflection fiber optic fusion splice. Fibre splicing method most widely used at this stage, the most suitable for application in a large number of relatively concentrated fibre termination, especially in the wiring between the application of the cabinet.

3. Fibre Optic Splice method (also called mechanical fibre splice): The whole process does not require cold then hot welding machine, suitable for relatively small number of core optical fibres, optical fibre connecting geographically dispersed, especially suitable for the application in the FTTD.

Fast optical fibre connector is characterized by the application FTTD

Fast fibre optic connectorsis smaller than the volume of the common connector smaller, more convenient wall and desktop installation, to ensure the stability of the optical system
performance and reliability. However, if the conventional optical fibre splicing manner, since the heat-shrinkable sleeve has a length 6 ~ 7mm, the bottom panel 86 of the cartridge mounting space is not deep enough, it can not guarantee performance of the fibre splice and fibre bend radius requirements may result network communication is unstable.

Fast fibre optic connector with fibre embedded in the factory, without gluing and sanding, simple and convenient. Process does not require the entire cold then hot melt machine, greatly reducing the complexity of fibre termination, saving fibre splice time and improve the efficiency of construction.

Fast fibre optic connector with a simple construction and installation requires only a crimping tool to completer fibre optic splice, easy to use and short trainning period; and cold connection equipment investment cost is small, as FTTD solutions to improve the cost-effectiveness.

Fast fibre optic connector construction process does not require an active device, suitable for office construction for harsh environments, especially in pre-construction project, most of them are not powered site environment or to take power inconvenient places.

Fast fibre optic connector can be repeated production, improve the utilisation of fibre head, significant cost savings.

Fast fibre optic connector are available in SC and LC connectors, multi-mode OM2, OM3 and singlemode OS2 Gigabit systems to choose from.

Fast fibre optic connector cold connection steps

Assembly tool (fibre optic cleavers, fibre cable strippers, aramid scissors) and the product material (connector, tail cap, assembly fixtures, 0.9mm cable gripper) the preparation, as shown in Figure 1.

The connector is fixed on the assembly tool, as shown in Figure 2.

Using optical fibre stripping pliers strip the fibre core and the fibre coating sheath, shown in Figure 3

Dipped in pure alcohol, using fibre-cleaning paper bare fibres, as shown in Figure 4.

Optical fibre fixed on the holder, as shown in figure 5.

Using the fibre optic cutter to remove excess length, as shown in Figure 6.

The gripper assembly tool in a guide groove, ensuring the end of fibre alignment U-shaped parts of the connector shown in Figure 7.

Loosen the clamp clip, in the middle of the holder, slow to move forward, until hear the “pop”, as shown in figure 8.

Open all clamps and lock, remove the connector, shown in Figure 9.

Fitted with tail cuff, cold connection completed, as shown in Figure 10.

Fast fibre optic connector as ease of installation and flexibility, more and more customers, are widely used in fibre to the desktop FTTD solution.

Guide to Fiber Optic Splice Closure

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Fiber optic splice closure is usually used with outdoor fiber optic cables, provides space for the outdoor fiber optic cables to be spliced together. The fiber optic splice closures and the fiber trays inside will protect the spliced fiber and the joint parts of the outdoor fiber cables. Generally the fiber optic splice closures are dome type and horizontal types, and Horizontal Fiber Splice Closure is used more often.

Structure of Fiber Splice Closures

The fiber splice closures are made from special industrial grade, high tension plastic with a reliable moisture barrier. They are also optimized to resist aging of the material due to factors in the natural environment such as ultraviolet light.

There are two main types of closures, fiber optic and fiber optic terminal. A closure is hardware used to restore integrity of fiber cables entering the enclosure. The terminal is a hardened external connector that allows the addition of one or more fiber cables to the enclosure. These two categories can be configured as butt closures and in-line closures. The butt closure allows cables to enter from one end, while the in-line allows entry from both ends. Both the butt closures and in-line closures can be one of the following types:

Fiber Optic Splice Closures Key Features

The box add aging-resistant in imported high tensile construction plastic out-faster is made up of stainless steel;
Overlap structure in splicing tray easy to install;
Suitable for ordinary fiber and ribbon fiber;
Perfect leak proofness and fine function;
Perfect and reliable sealing operations;
Fiber-bending radium guaranteed more than 40mm;
Full accessories for convenient operations;
Fiber optic splice closure can be used repeatedly;
High reliability;
For aerial, and direct buried applications.

Fiber Optic Splice Closure Types

For outside plant splice closure, there are two major types: horizontal type and vertical type.

1) Horizontal type

Horizontal type splice closures look like flat or cylindrical case. They provide space and protection for optical cable splicing and joint. They can be mounted aerial, buried, or for underground applications. Horizontal types are used more often than vertical type (dome type) closures.

Most horizontal fiber closure can accommodate hundreds of fiber connections. They are designed to be waterproof and dust proof. They can be used in temperature ranging from -40°C to 85°C and can accommodate up to 106 kpa pressure. The cases are usually made of high tensile construction plastic, are widely used in CATV, telecommunications and fiber optic networks.

2) Vertical Type

Vertical type of fiber optic splice closures looks like a dome, thus they are also called dome fiber optic splice closure. They meet the same specification as the horizontal types. They are designed for buried applications.

Vertical fiber optic splice closures are made of excellent engineering plastics, they are with 1inlet/outlet ports, 2inlet/outlet ports, 3inlet/outlet ports types, fitting different fiber optic core numbers. The vertical fiber optic splice closure is used in CATV, telecommunications and fiber optic networks.

Fiber splice closures accept both Ribbon Fiber Cable and round fiber cables. Each type (ribbon or round cable) fits respective requirement of different fiber splicing counts. They are widely used in optic telecommunication systems. FiberStore offers fiber optic splice closure, vertical, horizontal, dome, from 2 cores to 240 cores maximum, with inside fiber optic splice trays accessories like fusion splice sleeves.

China Optical Fiber To The Home will Release 8 Trillion Business Opportunities

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From global telecommunications network investment development in the last five years, China has become a leading global network equipment, which is one of the main kinetic energy market growth. As the optical FTTH(fiber to the home) FTTH patch cables policy, RMB 600 billion forecast will bring business opportunities, in addition to the infrastructure construction, the Chinese are optimistic forecasts for the whole broadband policy related investment on the upstream and downstream industry more than 1.6 million yuan. In addition to broadband policy, China to accelerate the development of 4 g, driven optical fiber and CNC equipment performance grow.

Housing and urban-rural development, according to media reports, China’s ministry of industry and information technology, has issued “residential area and residential buildings fiber-to-the-home fiber optic transmission facilities engineering design specification”, “residential area and residential buildings fiber-to-the-home fiber optic transmission facilities engineering construction and acceptance norms”, the two national standards, to the situation of the implementation of the optical fiber to the home for the first time to make mandatory provisions.

According to the rules, from April 1, in public telecommunication network is optical fiber transmission. New residential and residential construction of communications facilities, should use optical fiber to the home way construction, at the same time, encourage and support the conditional towns, rural housing project.

According to internet service providers, if you want to complete “250 million broadband users, access speed urban family an average of more than 20 m rural averaged more than 4 m in 2015,”, individual operators, the total cost of the national broadband network construction, will need about 200 billion yuan to 280 billion yuan, the three operators will exceed 600 billion yuan total construction cost.

China ministry of industry and in the “broadband China 2013” conference earlier this year has also suggested to add FTTH (fiber to the home) covering number exceeds 35 million goals. Ministry of industry and at the same time, according to the last year China FTTH coverage expanded to 94 million households.

Hainan New Housing Will be Installed Fiber To The Home,Users Can Customize Operators

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On16, we learned information from housing and construction department of Hainan province, to implement the national ministries to speed up the popularization fiber-to-the-home FTTH fiber optic cables broadband China construction requirements, to promote residential and residential building in the construction of optical fiber to the home, new housing will be comprehensive implement the optical fiber to the home work of Hainan province.

According to the state ministries issued “residential area and residential buildings fiber-to-the-home fiber optic transmission facilities engineering design code” and “residential area and residential buildings fiber-to-the-home communication facilities engineering construction and acceptance standard” requirements: in public telecommunication network is optical fiber transmission at county level and above, the new residential and residential construction mode of communication facilities should use optical fiber to the home construction;

Engineering design must have several equal accesses, user can choose telecommunication business operators. Newly built residential area and residential buildings of underground communication pipe, distribution pipe network, telecommunications, equipment and other communication facilities must be synchronous with residential area and residential buildings construction, synchronous acceptance.

According to introduction, in various cities and counties of Hainan province related departments to strengthen supervision, to solve the optical fiber to the home renovation entry difficult problem. At the same time, encourage and support the conditional villages and towns, rural housing project and residential construction to realize optical fiber to the home. Residential construction unit, realty service enterprise should actively support optical fiber to the home renovation, shall not be restricted telecom operating companies equal access and use, shall not restrict the user options.

China Formal Implementation for Fibre Optic Network Fibre To The Home Needs to be Improved

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On April 1, the formal implementation of fibre optic network Fibre To The Home(FTTH) of the policy was put into effect, is the process of city informatization construction and renovation, but in the process of execution, some parts of the acceptance standard has yet to be improved.

MOHURD(Ministry of Housing and Urban-Rural Development) and MIIT(Ministry of Industry and Information) held a teleconference jointly that asked to implement the previous issued FTTH fibre optic cables documents, they are Residential area and residential buildings fibre-to-the-home communication facilities engineering design specifications.

It is worth mentioning that the specification is not only for new residential area, building, and it’s suitable for both residential, building renovation and expansion project of fibre optic transmission, that the fibre to the home faces the first national standards. At the same time, the  policy of the specific implementation, relevant statement to make clear, the user can choose the carrier freely.

In addition, in the process of optical fibre to the home project acceptance, the acceptance by the force of the strength and acceptance standards is also related to the implement of this policy, whether they are in good condition.

In fact, on July 15, 2010, our country had issued national standard of housing and urban-rural development of the residential area and residential buildings communication facilities specification “, “residential and residential building acceptance of communications engineering. Compared with the previous situation, the new “standard” in addition to the new requirement for optical fibre to the home, in the “mandatory norms” is made obviously improve.

For more information, pls visit our website FS.COM.

Investigation Shows that Optical Fiber To The home Network can Save 20% Cost for Operators

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According to foreign media report, Fiber to the Home Council released a latest survey that manage fiber-to-the-home fiber optic network not only can meet consumer and businessmen’s demand for much more bandwidth, but also can save as much as 20%  of the cost for the small and medium-sized operators every year.
The commission said: “on average, respondents estimated the proportion of this part of the cost saving about 20.4%, mainly due to continuous repair and maintenance cost reduction.”
Fiber to the Home Council indicated that the number of households which can be accessed the optical fiber to the home rose 17.6%, reached 22.7 million, this is due to the small and medium-sized telecommunications companies that have not install fiber tools yet, not because they are unaware of the potential cost saving benefit, but because they don’t have enough money to do it like this, or no intense competition to promote their field they behave.

FTTH Solutions for Multi-Stories Building, Quick Install and Insert

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Along with the increasing bandwidth requirements, and enhancing the user experience, more and more of the optical fibres need to be entered household. Traditional way of building wiring can’t meet the requirements of current optical fibre access, so operators are looking for a more flexible and fast economic and effective fibre-to-the-home scheme.

According to the characteristics of China’s building based on multilayer foreign mature in the FTTH network operators/high-rise building fibre-to-the-home wiring deployment experience, TE telecom network department specifically for the Chinese market developed multi-layer and high-rise building (MDU) rapid installation. In the process of the FTTx solutions, the protection of operator, on the basis of reasonable assets investment, promote the rapid response ability of the customer service, and reduce the overall network operation and maintenance costs, the bandwidth of the user help operators to cope with rising demand effectively. TE can provide industry leading end-to-end FTTH network overall current solutions, both in terms of room/data centre or outside the facility and multi-stories building, TE connection/cable and protection of all kinds of products.

Miniaturization of spectral distribution box (Mini iFDH), its compact and high density was designed specifically for the Chinese multi-stories and high-rise
approximately install in weak electricity engine room. Its spectral distribution box can provide 24 largest root feeder cable and wiring 96 core optical cable into the end, at the same time also can provide feeder and wiring cable full welding or wiring cable MPO termination in advance of all kinds of flexible solution, support the real “plug-and-play” type optical splitter module, there are nine fibre splitter card slot, can satisfy the standards/PNP optical splitter, miniaturization and industry generally fibre jumper type monochrometre installation. TE patent integrated six slide the adapter design, make the fibre jumper more convenient and flexible, also make the design more compact. In combination with the unique “revolving door” design.

TE made use of the patent to the RapidReel cable rapid deployment of the system, the design for the Chinese market has developed a miniature light (Mini RDT) the wiring terminal box, the box provides a compact and high density fibre termination box solutions, aims to accelerate the deployment of client fibre-to-the-home. Them with 30 metres of 12 core 3 mm vertical cable wiring. To multicore cable is connected to a MPO beforehand the end, and comply with the Mini iFDH.

TE sales director of telecommunications networks Yang Yajun said: “according to the multi-stories building features, TE telecom network department introduced installation fast, plug and play solution for MDU. The plan to provide the greatest return on investment, the total cost of 18% lower than the industry at present common deployment scheme. Due to the welding eliminates the wiring cable, the traditional MDU product installation saves more than 50% of the time, and provide maximum flexibility for installation, daily life of residents and property is greatly reduced and the management of interference. The miniaturization of products design, only is a quarter of traditional housings, to provide on-site to excess vertical wiring cable space, especially for Chinese buildings within narrow weak electricity engine room installation requirements, make fibre-to-the-home easier.”