Fiber networks

Xem 1-20 trên 290 kết quả Fiber networks
  • Carriers and enterprises are looking for inexpensive ways to utilize their infrastructures to take advantage of the cost effectiveness of Ethernet transport and services. One area currently under consideration is how to fully utilize fiber build-outs to continue to offer revenue-generating services such as voice, and to add new packet-based services at the same time. The LoopStar711 is a fixed configuration, multi-service access platform offering cost-effective and easy-to-manage Ethernet and TDM-based services that allow for the full utilization of fiber networks....

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  • Research activities in laser physics and in photonics technologies over the last two decades have continuously produced a large diversity of new advances. Several examples illustrate the major impact of optics in the quantum sciences, engineering, metrology, communication fiber networks, or high-capacity data storage. Besides these established fields of research and development for industry or for the consumer markets, laser optics will certainly disseminate in the near future in new areas such as biology, chemistry, medicine, or nanotechnologies.

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  • In the backbone or to the desk, optical networks achieve peak performance with ADC's fiber connectors, patch cords, raceways, and panels featuring integrated cable management and bend radius protection. Proper cable management practices make fiber networks less susceptible to accidental damage, quicker to install, less expensive to own and operate over the long haul and easier to expand as needs grow.

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  • T o the traveler, the border crossing is invisible: no armed guards, snarling guard dogs, passport checks, or luggage searches. To the signals crossing this border, it might as well not even exist; but to your network man- agers and technicians, it’s a critical crossing. The border is the demarcation point, or “demarc,” between your fiber network and that of your ser- vice provider. On the outside, the service provider handles maintenance; on the inside, the responsibility is all yours.

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  • Lower operations costs, greater reliability and flexibility in service offerings, quicker deployment of new and upgraded services—these are the characteristics of a successful service provider in a competitive global market. Service providers continue to build out high-bandwidth networks around the world. These networks use a great deal of fiber—the medium that meets both their bandwidth and cost requirements. But just deploying the fiber is not enough; a successful fiber network also requires a well built infrastructure based on a strong fiber cable management system.

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  • Deploying a successful fiber-to-the-premise (FTTP) network requires careful planning and execution. It is clear after many years of trials that FTTP is here to stay. Taking FTTP networks from the lab/field trial mode to full-scale network deployment presents many significant challenges for service providers. One of these challenges is deploying the network for the lowest possible cost, while creating a fiber network infrastructure that has the flexibility and reliability to last long into the future....

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  • VAMs can perform a variety of network functions, including splitting, multi- plexing, and providing access within fiber networks, the most popular appli- cation today is non-intrusive monitor- ing, which lets providers proactively troubleshoot their networks without forcing a disruption of service on cus- tomers.

    pdf4p kieuoanh 11-08-2009 65 3   Download

  • Since the publication of the first edition of this book in 1992, the state of the art of fiber-optic communication systems has advanced dramatically despite the relatively short period of only 10 years between the first and third editions. For example, the highest capacity of commercial fiber-optic links available in 1992 was only 2.5 Gb/s. A mere 4 years later, the wavelength-division-multiplexed (WDM) systems with the total capacity of 40 Gb/s became available commercially.

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  • Physical Layer. In this chapter, you will learn to: Explain the role of Physical layer protocols and services in supporting communication across data networks. Describe the purpose of Physical layer signaling and encoding as they are used in networks. Describe the role of signals used to represent bits as a frame is transported across the local media. Identify the basic characteristics of copper, fiber, and wireless network media.

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  • The demand for higher bandwidth by residential customers has led carriers to one simple conclusion – optical fiber with its almost limitless bandwidth capability will be a network necessity. The driver for such high consumer bandwidth usage is the need for carriers to deliver video, along with voice and data services, to complete the “triple play” package. As traditional carriers experience declining revenue from voice services, they must find ways to increase the revenue from data and video services.

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  • Tham khảo tài liệu 'omnireach™ fttx solutions fiber distribution hubs', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Transmission Basics and  Networking Media Explain basic data transmission concepts, including full duplexing, attenuation, and noise Describe the physical characteristics of coaxial cable, STP, UTP, and fiber-optic media Compare the benefits and limitations of different networking media Identify the best practices for cabling buildings and work areas Specify the characteristics of popular wireless transmission methods, including 802.11, infrared, and Bluetooth

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  • Tham khảo tài liệu 'omnireach™ fttx solutions nema fiber demarcation box (fdb)', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo tài liệu 'omnireach™ fttx solutions nema fiber demarcation cabinet (fdc)', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • In the last two years, optical networking has risen into the public consciousness in many different ways. It has become the next great technological thing — businesses want it, service providers want to sell it, device manufacturers want to provide equipment, and component manufacturers are scrambling to supply pieces and parts to all of them. At the time of this writing, an 18-month backlog on optical fiber and some optical amplifiers exists because of the enormous and unanticipated demand for highbandwidth optical connectivity.

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  • The ADC Outdoor Fiber Distribution Terminal 48F (oFDT-48) is designed to terminate, splice and interconnect fiber optic cables in an outdoor environment. This terminal may be adapted to Fiber-to-The-Premise (FTTP) Multiple Dwelling Unit (MDU) applications by mounting the enclosure to the exterior surface of a dwelling and connecting between the distribution cable and drops routed to individual living units. The oFDT-48 is typically divided into two side-by-side sections with distribution cable routed into one side and drop cable routed into the other side.

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  • ADC’s new Optical Normal Through Panel is the latest addition to its Pro Patch line of broadcast patching products. This new fiber panel is designed to provide patch by exception, normal through functionality, similar to copper-based patch panels. Traditional fiber patch panels require a fiber jumper to be in place at all times. With this newly designed panel, however, all fiber “Source” and “Destination” connections are on the rear of the panel, with a normal through connection between the “Source” and “Destination” ports.

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  • Tham khảo tài liệu 'fiber cable assemblies and accessories patch cords, ifc assemblies, attenuators, fasterm® connectors and adapters', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • ADC's Loopstar® Fiber Field Cabinet for ADC’s next-generation SONET platform offers service providers an economical solution for providing legacy TDM services (DS1/DS3) and next-generation Ethernet services in areas that cannot be served from local wire centers or mobile switching centers. In these environments, ADC’s small outdoor enclosure, packaged with ADC’s LoopStar 800 SONET access system and other supporting equipment, allows carriers to continue providing customer requirements and offering additional services.

    pdf4p halanh 14-08-2009 47 5   Download

  • Growth in wireless services is increasing the number of copper and fiber cables that must be managed – causing an increased workload for reconfigurations and maintenance. Meeting the challenge of increasing profits in the face of fewer capital and operating resources to manage this steadily growing and more complex wireless network infrastructure requires improvements in operational efficiency from Network Operations.

    pdf8p halanh 14-08-2009 75 5   Download


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