7 class f bandwidth 16 mhz 100 mhz 100 mhz 200 mhz 600

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Unformatted text preview: 00 MHz 200 MHz 600 MHz Cable Type UTP UTP/STP UTP/STP UTP/STP SSTP Link Cost (Cat 5 =1) 0.7 1 1.2 1.5 2.2 Comparison of Shielded and Unshielded Twisted Pair Unshielded Attenuation (dB per 100 m) Frequency (MHz) Category 3 UTP Category 5 UTP 1 2.6 4 Near-end Crosstalk (dB) 150-ohm STP Category 3 UTP Category 5 UTP 150-ohm STP 2.0 1.1 41 62 58 5.6 4.1 2.2 32 53 58 16 13.1 8.2 4.4 23 44 50.4 25 — 10.4 6.2 — 41 47.5 100 — 22.0 12.3 — 32 38.5 300 — — 21.4 — — 31.3 Near End Crosstalk Near coupling of signal from one pair to another occurs when transmit signal entering the occurs link couples back to receiving pair link i.e. near transmitted signal is picked up by i.e. near receiving pair near Coaxial Cable Coaxial Coaxial Cable - Transmission Characteristics Characteristics superior frequency characteristics to TP performance limited by attenuation & noise analog signals amplifiers every few km closer if higher frequency up to 500MHz digital signals repeater every 1km closer for higher data rates Optical Fiber Optical Optical Fiber - Benefits Optical greater capacity data rates of hundreds of Gbps smaller size & weight lower attenuation electromagnetic isolation greater repeater spacing 10s of km at least Optical Fiber - Transmission Characteristics C...
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This note was uploaded on 12/27/2012 for the course TELECOM 302 taught by Professor Usman during the Spring '12 term at University of Engineering & Technology.

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