Dense wavelength division multiplexing (DWDM) is a technology that puts data from different sources together on an optical fiber‚ with each signal carried at the same time on its own separate light wavelength. Using DWDM‚ up to 80 (and theoretically more) separate wavelengths or channels of data can be multiplexed into a light stream transmitted on a single optical fiber. Each channel carries a time division multiplexed (TDM) signal. In a system with each channel carrying 2.5 Gbps (billion bits per
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INTRODUCTION The current ultramodern technologies are focusing on automation and miniaturization. The decreasing computing device size‚ increased connectivity and enhanced interaction with the physical world have characterized computing history. Recently‚ the popularity of small computing devices‚ such as hand held computers and cell phones; rapidly flourishing internet group and the diminishing size and cost of sensors and especially transistors have accelerated these strengths. The emergence
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KANNUR UNIVERSITY FACULTY OF ENGINEERING Curricula‚ Scheme of Examinations & Syllabus for Semesters VII & VIII of B.Tech. Degree Programme in Electronics & Communication Engineering with effect from 2007 Admissions SEVENTH SEMESTER Code Subject Hours/Week Sessional Marks University Examination L L T P/D Hrs Marks 2K6 EC 701 Microelectronics Technology 3 1 - 50 3 100 2K6 EC 702 Microwave Engineering 3 1 - 50 3 100 2K6 EC 703 Information Theory and Coding 3 1 - 50 3 100 2K6 EC 704 Television
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Human Eye Vs. Animal EyeBy:Andrea Torres ABSTRACT The tapetum lucidum is an evolutionary advantage for animals. It enables animals to see in dimmer light than the animal would otherwise be able to see in. The tapetum lucidum is useful to animals‚ but it also has a use to humans. Human beings use the tapetum lucidum to scan for reflected eye-shine‚ in order to detect and identify the species of animals in the dark and to send trained search dogs and search horses out at night. Historically
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for Optic Inter Satellite Communication:Review Submitted by A Penchala Bindushree 4th Sem‚ M.Tech (DCE) Acharya Institute of Technology Bangalore – 560090 Under the guidance of Internal Guide: Nataraju A B M.tech‚ (PhD) Assistant Professor‚ ECE Department Acharya Institute of Technology Bangalore – 560090 External Guide: Vijesh T V Scientist/Engineer ‘SC’ LEOS/ISRO Bangalore-560013 Abstract We have proposed a digitally implemented QPSK system for Free-Space Optics systems
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DWDM Tutorial Prerequisite Training November 15‚ 2002 DWDM Prerequisite Training Trademarks and Copyrights FNC is a trademark of Fujitsu Network Communications‚ Inc. (FNC). Alcatel is a registered trademark of Alcatel. 6910 TeraLight is a trademark of Alcatel. Corning is a registered trademark of Corning Corporation DS and SMF-28 are trademarks of Corning Corporation DS is a trademark of Corning E-LEAF is a registered trademark of Corning. Lucent is a trademark of Lucent Corporation
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CONTENTS 03. 03. 04. 05. 06. 08. 09. 10. 20. 21. 22. 23. Corporate Vision & Mission Core Values and Ethics Chairman’s Message CEO’s Message Board of Directors Corporate Information Financial Highlights Director’s Report Attendance of Board Members Statement of Compliance (CCG) Review Report to the Members Auditor’s Review Report to the Members Financial Statements 26. Balance Sheet 28. Profit and Loss Account 29. Statement of Comprehensive Income 30. Cash Flow Statement 32. Statement of Changes
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Copper vs Fiber Some advantages of Copper Cabling are Power over Ethernet this gives you the ability to power phones‚ surveillance cameras‚ Wireless Access Points‚ and many other devices right through the networking cable itself. That means that you don’t have to schedule an electrician in to run power to your surveillance cameras to power them. Another advantage is the ability to have an emergency power supply that will continue powering mission critical devices even if your electricity goes
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To best describe DWDM (coarse wavelength division multiplexing) and DWDM (dense wavelength division multiplexing)‚ you must first understand how WDM (wavelength division multiplexing) operates. WDM is multiplexing several optical signals on a single fibre by using wavelengths which are essentially colours of the laser light; to transmit different signals ranging from 2.5Gbps to 40Gbps. The device that connects the signals together is a multiplexor‚ and the one that splits them apart on the other
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gjf}+ jflif{sf]T;j :dfl/sf @)^( 9th Anniversary Souvenir 2013 Optical Fiber Project & its Impact Background In the initial days‚ the backhaul of telecom equipments relied on microwave and satellite communication. The rapid proliferation of various telecom technologies and the desire to penetrate larger market segments resulted in high national and international traffic. The high cost of space segments for statellite communications and limited capacity of Microwave links compelled Nepal Telecom
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