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Twisted Pair Cable
Twisted pair cable is a type of wiring in which two conductors of a single circuit are twisted together for the purpose of canceling out Electromagnetic Interference (E M I) from external sources ; for instance, electromagnetic radiation from UN-shielded twisted pair (U T P) cables and cross talk between neighboring pairs.
Straight-Through Wired Cables
Straight-Through refers to cables that have pin assignments on each end of cable. In other words Pin 1 connector A goes to Pin 1 on connected B, Pin 2 to Pin 2 etc.Straight-Through wired cables are most commonly used to connect host to client.Straight-Through wired cat 5_e patch cable is used to connect computers,printers and other network client devices.
Cross_over Wired Cable
Cross-Over wired cable are very much like Straight-Through cable with the exception that TX and RX line are crossed. Cross-Over cable are most used to connect two hosts directly. Example would be connecting a computer directly to another computer. Connecting a switch directly to another switch. Connecting a router to a router.
Roll-Over Wired Cable
Roll-Over wired cable most commonly called Roll-Over cable, have opposite Pin assignments on each end of cable or in another word it is "Roll-Over" Pin 1 of connector A would be connected to Pin 8 of connector B.Pin 2 of connector A would be connected to Pin 7 of connector B and so on.
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