PRESENTED BY V.LAXMANA VENKATA KUMAR 09PA1A04B6 ABSTRACT: FSO may sound new and experimental but in fact it predates optical fiber and has its roots in wartime efforts to develop secure communication systems that did not require cable and could withstand radio jamming. FSO has been around for more than a decade‚ but it is only recently that interest in this technology has started
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media lie below the physical layer. We can evaluate transmission media by throughput‚ propagation speed‚ and propagation time. * A guided medium provides a physical conduit from one device to another. Twisted-pair cable‚ coaxial cable‚ and optical fiber are the most popular types of guided media. Twisted-pair cable consists of two insulated copper wires twisted together. Twisting allows each wire to have approximately the same noise environment. Twisted-pair cable is used in telephone lines for
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magnesium‚ vitamin E‚ iron‚ calcium‚ fiber‚ and riboflavin. A scientific review published in Nutrition Reviews last year found that almonds as a food may help maintain healthy cholesterol levels. The authors wrote: "The message that almonds‚ in and of themselves‚ are a heart-healthy snack should be emphasized to consumers. Moreover‚ when almonds are incorporated into a healthy‚ balanced diet‚ the benefits are even greater." Almonds have more fiber than any other tree nut. The fatty
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Fa-2012/MScEM/040 INSTALLATION OF GPON AT ISLAMABAD PROJECT CHARTER DEVELOP PROJECT CHARTER - INPUTS Statement of Work. The scope of the project includes installation of GPON (Gigabit Passive Optical Network) at Islamabad. The same includes laying of fiber optic cable‚ installation of necessary PON components and provision of triple play services (Data‚ Voice & Video) and add-on services such as Video on-demand‚ Online Gaming‚ HDTV etc to 0.2M subscribers of Islamabad city. The project is to be undertaken
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eating habits Change in usual foods or eating patterns. Urine has scanty amounts and yellowish in color Constipation related to little amount of fiber diet and inadequate water intake manifested by dry and hard stool. Experiencing constipation due to sudden change in eating pattern with little amount of fiber diet and inadequate water intake . Low fiber diet results in low fecal residues‚ which can reduce the frequency of bowel action that is evidenced by dry and hard stool Short term : After 4
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Name: Jeremiah Edison D. Pascua Course & Year: BSIT-3 Date Submitted: June 24‚ 2013 1. Twisted Pair Wire Physical Specification: -Twisted pair wire is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling outelectromagnetic interference (EMI) from external sources; for instance‚ electromagnetic radiation from unshielded twisted pair (UTP) cables‚ and crosstalk between neighboring
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The horizons of optical networks are much more than high speed physical layer transport. An intelligent optical network design must include higher network layer considerations. This is the only book currently on the market that addresses optical networks from the physical layer to the network layer and should be valuable for those who try to understand the intricacies of what optical networks can be. —Vincent Chan‚ Professor‚ MIT Department of Electrical Engineering and Computer Science This book
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necessary to complete an acceptable installation of the horizontal and riser data communications cabling plant. This is to include‚ but is not necessarily limited to‚ faceplates‚ modular jacks‚ connectors‚ data patch panels‚ equipment racks‚ cable and fiber optics. Work Included: 1. Work shall include all components for both a horizontal and riser data cable plant from workstation outlet termination to wire-room terminations. All cable-plant components‚ such as outlets‚ wiring-termination blocks
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Optical Fiber and its Applications Index 1. Aim 2. Important Terms 3. Optical Fibers 4. Applications 5. Principle Of Operation 6. Mechanism of Attenuation 7. Manufacturing 8. Practical Issue 9. Electronically Based Project 10. Bibliography Aim To Study the Optical Fibre Cable Principle and its Applications. Important Terms v Optical Fiber: An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the
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CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio Infrared 4.3 Wireless Propagation Ground Wave Propagation Sky Wave Propagation Line-of-Sight Propagation 4.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 4.6 Recommended Reading and Web Sites Key Terms‚ Review Questions‚ and Problems Key Terms Review Questions
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