Monthly Archives: June 2013

Huawei Deploys 10G GPON Commercial Network in the World’s Tallest Building

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It is recorded that Huawei and the leading telecom operator Emirates Telecommunications (Etisalat) successfully deployed the world first 10G GPON commercial networks in the world’s tallest Skyscraper Burj Khalifa (formerly Mingdibaita), bringing in 1G access and Elife business for 30,000 end users, which has greatly enhanced the network bandwidth to meeting the 4K, 8K HD video Services. Meanwhile, the network provides IP VPN and other services, fully meeting more than 200 multinational corporations and luxury hotels in the tower with the ultra-wideband, highly reliable business needs.

Burj is the world’s tallest building located in Dubai, with height of 828m, number of Floors 169 layers. Many multinational companies set up offices there, so the demand for the network is very high. The completion of the network, enable the 10G GPON business providing up to 10G per second transfer rate on network the same with GPON FTTH to provide up to 10Gbite rate speed, which will meet the demand for high-end users for high bandwidth, low latency and more, and corporate information about access, LTE backhaul connectivity to provide high-speed stability.

As the leading telecom operator in the Middle East, Etisalat provides innovative and reliable telecommunication services in more than 15 countries in the Middle East, Africa, Asia and other places. UAE Etisalat has provided more than 80% populations nationwide with FTTH services, and is committed to innovation technology to help the UAE government to establish the best basis for networking and knowledge based economy.

At the end of 2012, Huawei SingleFAN ultra broadband access solutions have served the global 1/3 broadband users, based on which, operators can access DSL, P2P, GPON, EPON, 10G-PON, TWDM 40G-PON through a unified platform. To achieve full-service bearer, and bandwidth, on-demand deployment and smooth network evolution. According to Infonetics, OVUM, Broadbandtrends and other advisory reports for the first quarter of 2013. Huawei PON and DSL’s share continued to maintain the first position in the global rankings, continue leading the global access market.

Published by FiberStore, industry news – www.fs.com

 

Noun Explanation of Several Common Optical Passive Devices

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Noun Explanation of Several Common Optical Passive Devices

1) What is the PON?

PON is the English abbreviation of Passive Optical Network. Because of its large transmission capacity, low maintenance cost and fiber dosage saving, PON has now become the main optical access technology in the world, and is widely used mainly by the fiber to the home (FTTH) network construction. PON is mainly comprised of OLT, optical splitter and ONU. According to the agreement, PON can be divided into EPON, GPON, WDM-PON and so on.

2) What is the optical passive device?

Optical passive device is a kind of optical components which does not rely on any outside optical or electrical energy, and can do some optical functions by their own, such as coupler, filter and so on. Its working principle complies with the physical and geometrical optics theory, while laser transceiver device based on photoelectric energy conversion is called active devices.

3) How is the optical passive device classified?

Optical passive devices can be classified according to their production process and functions. According to the different production process, optical passive devices can be divided into fiber optical passive devices and integrated optical passive devices. According to the different functions, they can be divided into optical connection devices, optical attenuator, optical splitter, optical wavelength distribution devices, optical isolation devices, optical switch, optical modem devices and so on.

4) What is the main technical indicators to evaluate optical passive devices?

The main technical indicators to evaluate optical passive devices are: insertion loss, return loss, bandwidth, with ups and downs, power allocation error, the wavelength isolation, channel isolation, channel width, extinction ratio, switching speed, speed and so on. Different devices have different requirements of technical indicators, but most of the optical passive devices need the requirements of low insertion loss, high reflection loss, and wide working bandwidth.

5) What is the PLC?

PLC is the English abbreviation of Planar Lightwave Circuit, namely the planar optical waveguide. The optical passive device and traditional vertical difference, PLC devices are used by semiconductor fabrication, which can integrate the optical components with different functions into one chip. PLC is the basic technology of photoelectric device integration, modularization, miniaturization. The devices those are used PLC technology include: optical splitter, arrayed waveguide grating (AWG), variable optical attenuator (VOA), variable optical attenuation combiner (VMUX), reconfigurable optical add-drop multiplexer (ROADM) and so on.

6) What are the advantages of PLC splitter compared to FBT optical splitter?
Compared with the traditional device FBT splitter used of FBT(Fused Biconical Taper) processing, PLC splitter has wide work wavelength channel loss, good uniformity, small volume, wide working temperature range, high reliability, is currently the preferred connection of OLT and ONU and the realization of optical signal power distribution PON the access network.

7) What is the difference between Full-band PLC splitter and three FBT window splitter?

Due to the working principle and the limit of process, traditional FBT splitter can generally meet the transfer at most three different wavelength, which is called the three window splitter. While the loss of PLC splitter is very low in a very wide wavelength range (1260-1650nm), so in addition to meet the three a window outside the commonly used, PLC splitter can also be used for transmission and management more work wavelength. So PLC splitter is called full-band splitter. The wavelength requirements of EPON and GPON standards were 13101490 and 1550nm, the next generation PON standard (such as WDM-PON) will require more work wavelength. The use of PLC optical branch devices can better adapt to the needs of future network upgrade and development.

How To Test Ethernet Cable With Network Cable Tester

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Whether installing new cable or troubleshooting existing cable, cable testing plays an important role in the process. But do you know the process of using cable tester to test Ethernet cable? First we should know the product of Ethernet cable and network cable tester clearly.

About Ethernet Cable
An Ethernet cable is one of the most popular forms of network cable used on wired networks. An Ethernet cable has eight wires that are arranged in four pairs. For current to flow correctly, the wire pairs must be connected in the proper order. Ethernet cables normally support one or more industry standards including Category 5 (CAT5) and Category 6 (CAT6).

Ethernet cables are physically manufactured in two basic forms called solid and stranded. Solid Ethernet cables tend to offer better performance and protection against electrical interference, while stranded cables are less prone to physical cracks and breaks making them more suitable for travelers and portable devices.

Computer networks use Ethernet cables to allow computers in the network to talk to each other. Ethernet cables connect network devices on local area networks such as PCs, modems, routers, switches and Fiber Optic Adapters. They transmit data using the Ethernet protocol.

About network Cable Tester
Basic network cable testers can test for simple connectivity issues but may not identify other problems that cause the cable to malfunction. Cabling may not work when it is near a source of interference or if the cable is too long. Intermittent faults may develop that do not show up when the cable is tested. Sometimes the problem is not sustained long enough to show up on the tester. Professional-level network cable testers may not only tell if an open circuit exists, but may identify where the break is located. Some also identify the gauge of wire used and can generate their own signal to test for interference.

When connected to an Ethernet cable, a network cable tester tells if the cable is capable of carrying an Ethernet signal. If the cable carries the signal, this indicates that all the circuits are closed, meaning that electric current can move unimpeded through the wires, and that there are no short circuits, or unwanted connections, in the wire. Network cable testers vary in complexity and price, but a basic tester consists of a source of electrical current, a measuring device that shows if the cable is good, and a connection between the two, usually the cable itself.

How to test Ethernet cable with Ethernet cable tester?

1.Reboot your modem/router. Unplug the power cord or hold down the reset button on your modem or router. Wait for 30 to 60 seconds then turn your modem/router back on.

2.Wait for your modem/router to re-establish a connection. Depending on your network hardware, it might take two to three minutes. If the problem persists, then try the network cable tester.

3.Turn on the network cable tester and plug one end of the cable into the “IN” Ethernet input on the network cable tester and the other end into the “OUT” input on the network cable tester.

4.Press the “Test” button on the network cable tester. The tester will send a signal across the Ethernet cable. If the signal gets from one end of the cable to the other, the tester will let you know if the test was successful, by displaying a green light, or unsuccessful, by displaying a red light.

5.Replace the Ethernet cable. If the test was unsuccessful, replace the bad Ethernet cable with a good one.

Follow the steps above, you generally know the error during installing new cables or troubleshooting existing cable. Correct it and finally have a smooth network.

Huawei Still Maintains Its Leading Position In 2013 Global Broadband Aggregation Equipment Market

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1Q13 global DSL, PON and FTTH equipment revenue declined 7% compared with 4Q12, down to $ 1.5 billion; although its global sales of EPON and GPON equipment respectively dropped 5% and 4%, Huawei still maintaining its leader position in global broadband aggregation equipment market (world market share of 33%).

FiberStore news, on June 6th, 2013, Infonetics Research principal analyst Jeff Heynen said, broadband aggregation equipment market got a poor start this year, although the performance of various regions and different technical aspects is different, but the overall revenue began a continuous decline from the first quarter of last year.

“EMEA (Europe, Middle East and Africa) suffered a heavy blow, the region DSL, PON and FTTH equipment sales in this region declined by 27% compared with last quarter, ending the growth of previous three consecutive quarters. The EPON sales in the Chinese market have fallen sharply, but due to China Telecom and China Unicom continuing deploy FTTH GPON-based to provide 20M access services, GPON equipment sales in the region has achieved eight consecutive quarters of growth. Meanwhile, as operators increase investment to resist the competition of DOCSIS 3.0 technology, the North American market contrarian, successfully avoided a quarter of weakness as its previous peculiar”, said Heynen.

The highlights of broadband aggregation equipment market in first quarter of 2013

1Q13 global DSL, PON and FTTH equipment revenue declined 7% compared with 4Q12, down to $ 1.5 billion;

Due to seasonal and Russia, the Middle East carriers initial GPON equipment purchase tide coming to an end, and PON equipment sales in EMEA fell sharply by 50% after achieved double-digit growth in two consecutive quarters;

Despite its global EPON and GPON equipment sales respectively appeared 5% and 4% decline, Huawei maintains its leader position in revenue of global broadband aggregation equipment market (accounting for 33% market share);

Alcatel-Lucent ranked second in global broadband aggregation equipment market, followed by ZTE; ZTE shared China Telecom’s FTTx business by cheap price, its revenue was not that good for several consecutive quarters.

Mellanox Acquired Danish Optical Interconnect Component IPtronics

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Following the announcement of acquisition of silicon photonics manufacturer Kotura two weeks ago, the storage network vendors Mellanox Technologies Ltd. recently announced that the company will acquire a Danish private IPtronics A / S, reflecting determination of them enhancing the light transmission capability. Mellanox will spend $ 47.5 million in cash for the acquisition. IPtronics A / S is the industry’s well-known application of parallel optical transmitter and receiver technology developers. Board of Directors of Mellanox and IPtronics has approved the details of the transaction, Mellanox is expected in the second half to complete the transaction.

IPtronics provides multi-channel vertical cavity surface emitting laser (VCSEL) driver, modulator drivers and transimpenndance amplifier. Mellanox’s platform is already in use of IPtronics products. The same with the acquisition of Kotura, Mellanox said that IPtronics products are embedded in its current solutions, and that the acquisition enhances its ability to deliver complete end-to-end optical interconnect solutions at 100-Gbps and higher speeds to meet the growing demands of applications used in high-performance, Web 2.0, cloud, data center, database, financial services and storage environments.

The proposed acquisition of IPtronics is highly complementary with our recently proposed acquisition of Kotura. IPtronics’ parallel optical interconnect ICs further solidify our strategy to have a full end-to-end solution for the server and storage interconnect,” said Mellanox president and CEO Eyal Waldman.

Mellanox plants to establish its first R&D center in Europe at IPtronics’ premises in Roskide, Denmark, and further expan its customer support presence in Europe. It will keep IPtronics’ existing product lines to ensure continuity for customers and partners.

“We are very pleased to joint the Mellanox team and look forward to working together to further push forward the development of the combined company” said IPronics A / S co-founder and CEO Niels Finseth.

Published by FiberStore, business news – www.fs.com

on June 5, 2013

Common Passive Fiber Optical Splitters

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Fiber optical splitter, also named fiber optic coupler or beam splitter, is a device that can distribute the optical signal (or power) from one fiber among two or more fibers. Fiber optic splitter is different from WDM(Wavelength Division Multiplexing) technology. WDM can divide the different wavelength fiber optic light into different channels, but fiber optic splitter divide the light power and send it to different channels.

Work Theory Of Optical Splitters

The Optical Splitters “split” the input optical signal received by it between two optical outputs, simultaneously, in a pre-specified ratio 90:10 or 80:20. The most common type of fiber-optic splitter splits the output evenly, with half the signal going to one leg of the output and half going to the other. It is possible to get splitters that use a different split ratio, putting a larger amount of the signal to one side of the splitter than the other. Splitters are identified with a number that represents the signal division, such as 50/50 if the split is even, or 80/20 if 80% of the signal goes to one side and only 20% to the other.

Some types of the fiber-optic splitter are actually able to work in either direction. This means that if the device is installed in one way, it acts as a splitter and divides the incoming signal into two parts, sending out two separate outputs. If it is installed in reverse, it acts as a coupler, taking two incoming signals and combing them into a single output. Not every fiber-optic splitter can be used this way, but those that can are labeled as reversible or as coupler/splitters.

Attenuation Of Fiber Optic Splitter

An interesting fact is that attenuation of light through an optical splitter is symmetrical. It is identical in both directions. Whether a splitter is combining light in the upstream direction or dividing light in the downstream direction, it still introduces the same attenuation to an optical input signal (a little more than 3 dB for each 1:2 split). Fiber optic splitters attenuate the signal much more than a fiber optic connector or splice because the input signal is divided among the output ports. For example, with a 1 X 2 fiber optic coupler, each output is less than one-half the power of the input signal (over a 3 dB loss).

Passive And Active Splitters

Fiber optic splitters can be divided into active and passive devices. The difference between active and passive couplers is that a passive coupler redistributes the optical signal without optical-to-electrical conversion. Active couplers are electronic devices that split or combine the signal electrically and use fiber optic detectors and sources for input and output.

Passive splitters play an important position in Fiber to the Home (FTTH) networks by permitting a single PON (Passive Optical Network) network interface to be shared amongst many subscribers. Splitters include no electronics and use no power. They’re the community parts that put the passive in Passive Optical Network and are available in a wide range of break up ratios, including 1:8, 1:16, and 1:32.

Optical splitters are available in configurations from 1×2 to 1×64, such as 1:8, 1:16, and 1:32. There are two basic technologies for building passive optical network splitters: Fused Biconical Taper (FBT) and Planar Lightwave Circuit (PLC). FBT Coupler is the older technology and generally introduces more loss than the newer PLC Splitter.

How To Get the Best Broadband Service

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The best broadband service is by these factors are most important to you. If the money is not the problem, the best plan is likely to be the fastest. If money is the primary concern, the best broadband might be the least expensive service. If it’s convenient, defined the best may be simple, call your cable TV company; or perhaps customer service is your number one concern, making your choice of the Internet Service Provider (ISP) the most important factor in choosing the best broadband provider. It’s likely that it will be a combination of these factors taken in different degrees that will define the best broadband for you, so let’s take them one at a time.

Fastest: If you have a need for speed and your wallet is willing to look the other way, watch out for fiber optic broadband. While only available in select areas, fiber optical cable is replacing copper telephone lines and can pack a whollop when it comes to bandwidth. This cable can deliver television, digital phone and Internet with plenty of room to spare. As of February 2009, a vendor offer speeds of up to 50 Mbps (megabits per second) of about $140 US Dollars (USD) per month. If your wallet just look back your way, consider bottom tier plans of 10 Mbps for about $45 USD per month.

Cable TV broadband will be the next best choice, if you need speed. Cable can handle the transfer rate of up to 30Mbps, though most cable plans to place limit bandwidth to accommodate more customers at reduced 3 Mbps. High local load, (many local residents surfing at once), can also slow service if allotted bandwidth runs short.

A top DSL program can wet your whistle of 6 Mbps speed, but be sure to ask if you live in the local DSL router or digital subscriber line access multiplexer (DSLAM). Your physical address to the DSLAM, nearly the speed of the closer you will be the top boundary of the plan.

Cheapest: DSL plans have introductory speeds at affordable prices, making this your best broadband choice when budget is the main concern. DSL providers offer plans with speeds up to 768 kilobits per second (kbps) for about $14 USD per month in most areas. Dial-up operates at less than 54 kbps, making even the slowest DSL plan many times faster for your cruising pleasure.

Easiest: If you don’t have time to shop for a provider and you want to surf the Internet and the investment with the least loss of time, please contact your local cable TV provider. They will provide Internet access to your cable line directly or by subscribing you to a third party, to provide broadband service for them.

Many people think that the Internet cable is the best choice, because it is faster than DSL broadband, despite some cross over in speed and plans. Cable can theoretically accommodate up to 30

Mbps, but is usually capped by the provider at speeds between 3-20 Mbps. Cable Internet costs about $45 USD per month or more.

Best Customer Service: It may be, you are a new broadband, can comfort you through the process you want to know, if you need, no headaches long telephone tips and automatic menu, slowly let you are confused about what to do. In many cases, a local or smaller DSL company will provide superior customer service to large, national group, telecom or cable company.

Search listings of DSL providers in your area, then to contact potential suppliers by calling the customer service number listed on the website the ISPs. You should not be more than one menu to navigate to a real person, waiting for should be reasonable for the time of day. Asked on behalf of the company’s customer service, and then with a little research online, and see how they are current clients.

Websites like DSL report has a wealth of information providers isp and interest rates according to the feedback. Note, however, the satisfactory companies rarely leave feedback and disgruntled customers tend to be more motivation. No company can please everyone, but you should get an idea, along with your phone, which companies might be the best broadband provider for you.

Regardless of priority, if you use the USENET Newsgroups, ensure that provides of news feed or you will be forced to get a third party service. The number of email addresses afforded might also be important if you’ll be sharing the plan with family members. Provide your own modem can also save a small monthly fee, if you are comfortable configuration DSL or cable modem to connect to the service.

Google Fiber is Aiming to Breakout the U.S Telecommunication Duopoly Market

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Google Fiber is Aiming to Breakout the U.S Telecommunication Duopoly Market FiberStore News, According to the foreign media reports, since its inception, Google Fiber is basically regarded as an experiment in the industry, aiming to highlight the poor performance of the network service providers to promote high-speed broadband services, which is also test platform of next generation of advertising and video technology. Google has been working to correct this stereotypes of people, and repeatedly stressed that it is their serious business to carry out, even if there are indications that they would never in a nationwide promotion of Google Fiber (only a handful of cities deployment)

Media reports fully proved Google is by trying to get people to think more seriously about Google’s fiber optic network project to get it regarded as a major broadband company, although not always the case. Technology News clearly states: This network was initially seen as what the Internet giant used to test its news services and advertising model as an experiment network. Others also would like to know if Google network is just is a mean to promote the existing cable TV and phone companies to provide faster Internet service. Obviously, it was agreed that Google as a rich and powerful technology giant is affordable with this project and simply credited the cost as research and development expenditures.
The reason of Google fiber networks impress on peoples in this way is because that is the truth. This makes Google recently announced the entry into Austin and Prove does not really change that. Google Fiber is an amazing little experiment, although it may ultimately have a huge impact, it is till a long time for it to get rid of “the interesting experiment” (in issues on the U.S market capacity background and connectively)
It is not important that how we call it. Google Fiber MiloMeldin (formerly known as @Home) participate in the association meeting on FTTH in North America this week, and reiterated Google fiber network is a serious money-making initiatives. During the meeting, other than repeatedly requesting for subsidies, deregulation or complaining the poor service (just like the attitude of telecommunication industry’s mobile operators towards the large carries), Google in turns insisted that the earnings of working with the local government is rather abundance.
To be specifically, Google requires Kansas City as the assigned inspector for the Google Fiber project construction to enable speedy completion of the city’s periodic inspection, which will further saves the time and money that Google invest I the construction phase. This company also requires deploy fiber in other cities’ piping, and minimizing the unnecessary street excavation projects. The company has cooperated with the public utility companies to get the supported base station location for connections of the new fiber optic network.
Despite all these sound very good, but as of now, Google has not disclosed any convincing financial data, and Google Fiber has not yet been deployed on a large scale in families except a few part families. Although it is welcomed that Google Fiber intended to break the duopoly U.S telecommunication market, it is still a long way to go if it let people to see it as a real player in the market and a truly disruptive market forces.