Twisted pair 双绞线

（重定向自Shielded Twisted Pair）

Cross-section of cable with several unshielded twisted pairs

Unshielded twisted pair cable with different twist rates

Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources; for instance, electromagnetic radiation from unshielded twisted pair (UTP) cables, and crosstalk between neighboring pairs. It was invented by Alexander Graham Bell.

单词	Shielded Twisted Pair
释义	Shielded Twisted Pair 英语百科 Twisted pair 双绞线（重定向自Shielded Twisted Pair） Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources; for instance, electromagnetic radiation from unshielded twisted pair (UTP) cables, and crosstalk between neighboring pairs. It was invented by Alexander Graham Bell.
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