slides 09 Transmission Media - Chapter 7 Transmission Media...

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Chapter 7 Transmission Media
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Transmission medium and physical layer
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Guided Guided Media Media Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable
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Twisted-pair cable UTP and STP
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Categories Categories of unshielded twisted of unshielded twisted-pair cables pair cables Category Bandwidth Data Rate Digital/Analog Use 1 very low < 100 kbps Analog Telephone 2 < 2 MHz 2 Mbps Analog/digital T-1 lines 3 16 MHz 10 Mbps Digital LANs 4 20 MHz 20 Mbps Digital LANs 5 100 MHz 100 Mbps Digital LANs 6 (draft) 200 MHz 200 Mbps Digital LANs 7 (draft) 600 MHz 600 Mbps Digital LANs
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UTP performance
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Coaxial cable
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Categories Categories of coaxial cables of coaxial cables Category Impedance Use RG RG-59 59 75 W Cable TV RG RG-58 58 50 W Thin Ethernet RG RG-11 11 50 W Thick Ethernet
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BNC connectors
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Coaxial cable performance
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Bending of light ray
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Optical fiber
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Propagation modes
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Modes
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Fiber Fiber types types Type Core Cladding Mode 50/125 50/125 50 125 Multimode, graded-index 62.5/125 62.5/125 62.5 125 Multimode, graded-index 100/125 100/125 100 125 Multimode, graded-index 7/125 7/125 7 125 Single-mode
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  • Fall '14
  • Coaxial cable, MHz, Long-range radio navigation

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