Physical issues

You should also be aware that there are many issues related to cabling that can cause problems, and are often overlooked as a potential cause. The most common form of network cabling used in homes and offices is unshielded twisted pair (UTP), with fiber optic cabling being the more expensive alternative. UTP cabling is susceptible to various forms of interference. One such form is crosstalk, when the signal from one cable bleeds into another cable. This often happens when two cables are run too close to each other. Near end crosstalk (NEXT) is when an outgoing data transmission leaks into an incoming transmission. Far end crosstalk (FEXT) is when a transmitting station at the other end of a transmission line leaks into the ...

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