Cat 1

Cat 1 or Category 1 was introduced in 1985 and is wiring used to transfer voice data in telephone services. This wiring was available in unshielded twisted pairs and untwisted. Although Cat 1 is sometimes found with older homes, most modern homes and businesses are replacing Cat 1 for Cat 3 and Cat 5.

Cable, Cat 2, Cat 3, Cat 4, Cat 5, Cat 5e, Cat 6, Cat 7, Network terms, POTS, Telephone