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Network #4

From 3.0

TermDefinition
Transmission Medium Below the physical layer and directly controlled by it
Guided (wired) media Provides a conduit from one device to another. Signal is directed and contained by the physical limits of the medium
Twisted-pair cable Two copper conductors each with their own plastic insulation, twisted together. Higher twist ratio = higher quality
Unshielded Twisted Pair(UTP) encased in plastic sheath
Shielded Twisted Pair(STP) Metal shield over each pair to provide better noise resistance. More expensive, rarely used
Coaxial cable Higher frequency ranges and noise resistance than twisted pair. Copper core. Used for radio frequency connection and First Gen ethernet. Better but more expensive + harder to install than twisted pair
Fiber-optic cable Data transmission by pulsing light from LED or laser through central core. Can be digital or analog
Multimode fibre Uses a larger core. Light travels at different angles. Used in shorter connections inside a facility
Single-Mode fibre Uses a narrow core. Light goes straight. Highest bandwidths. Too expensive for most LAN
Connectors Hardware connecting wire to network device. Specific to media type
Media converters Allows different hardware running on different transmission media to interconnect and exchange signals
Unguided (wireless) media Transports waves without using a physical conductor
Radio wave Electromagnetic waves ranging from 3khz ~ 1GHz
Microwave Electromagnetic waves ranging from 1 ~ 300GHz
Created by: jolly_n4
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