Lecture3

[object Object],Physical Media

Physical Media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Copper Media: Coaxial Cable ,[object Object],[object Object],[object Object],[object Object],Physical Media Category Impedance Use RG-59 75  Cable TV RG-58 50  Thin Ethernet RG-11 50  Thick Ethernet

Copper Media: Twisted Pair ,[object Object],[object Object],[object Object],Physical Media

Shielded Twisted Pair (STP) Physical Media

Unshielded Twisted Pair (UTP) Physical Media

Unshielded Twisted Pair (UTP) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Categories of UTP ,[object Object],[object Object],[object Object],Physical Media

Categories of UTP: CAT 3 ,[object Object],[object Object],[object Object],Physical Media

Categories of UTP: CAT 4 ,[object Object],[object Object],[object Object],Physical Media

Categories of UTP: CAT 5 ,[object Object],[object Object],[object Object],[object Object],Physical Media

Categories of UTP: CAT 5e ,[object Object],[object Object],[object Object],[object Object],Physical Media

Categories of UTP: CAT 6 ,[object Object],[object Object],[object Object],[object Object],Physical Media

Fiber Media ,[object Object],[object Object],[object Object],Physical Media

Total Internal Reflection Physical Media

Fiber Media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Single and Multimode Fiber ,[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Fiber-Optic Cable ,[object Object],[object Object],Physical Media

Fiber Optic Cable ,[object Object],Physical Media

Wireless Media ,[object Object],[object Object],[object Object],[object Object],Physical Media

Wireless Media ,[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Frequency Bands Physical Media Band Range Propagation Application VLF 3–30 KHz Ground Long-range radio navigation LF 30–300 KHz Ground Radio beacons and navigational locators MF 300 KHz–3 MHz Sky AM radio HF 3–30 MHz Sky Citizens band (CB), ship/aircraft communication VHF 30–300 MHz Sky and line-of-sight VHF TV, FM radio UHF 300 MHz–3 GHz Line-of-sight UHF TV, cellular phones, paging, satellite SHF 3–30 GHz Line-of-sight Satellite communication EHF 30–300 GHz Line-of-sight Long-range radio navigation

Wireless LAN Physical Media Internet Router Switch Access Point Access Point PC PC

Terrestrial Microwave ,[object Object],[object Object],[object Object],[object Object],[object Object],Physical Media

Satellite Communication Physical Media

Lecture3

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Lecture3