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For questions about physical cables used in a computer network topology. This tag is suitable when your question is about a network cable. Examples: Twisted pair cable, Fiber optic cable, Coaxial cable, Patch cable and other specialized network cables.

4 votes
2 answers
6k views

PoE losses: Cat5e vs Cat6

A higher twist rate means a longer copper wire per length of cable. Both these facts would make one assume that the resistance per unit distance of a Cat6 cable would be higher than that of a Cat5e. … Presumably this is not the case, as modern PoE standards are allowing for higher power while keeping the voltage the same, meaning that more power would be dissipated in the cable if it were true. …
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