What acronym refers to a braid-screened unscreened twisted-pair cable?

The acronym that refers to a braid-screened unscreened twisted-pair cable is S/UTP. This designation indicates that the cable features shielding for the overall twisted-pair bundles, but the individual pairs themselves are not shielded, hence the 'U' for unshielded in the term.

Braid screening provides added protection against electromagnetic interference (EMI) while maintaining the advantages of an unshielded twisted pair configuration. It is especially useful in environments where increased EMI is anticipated, as it can enhance the performance of the cable by reducing external noise without the additional cost and complexity of shielding each pair.

The other acronyms represent different types of twisted-pair cables: STP (Shielded Twisted Pair) indicates both pairing and overall shielding; UTP (Unshielded Twisted Pair) refers to cables with no shielding; and FTP (Foiled Twisted Pair) includes individual shielding for each pair but does not specify overall shielding. The distinction is important in the application and performance of these cable types in data transmission.