Category 3 cable
UNSHIELDED TWISTED PAIR CABLE USED IN TELEPHONE WIRING, DESIGNED TO RELIABLY CARRY DATA UP TO 10 MBIT/S
Voice-grade copper; Cat 3 cable; CAT-3 cable; Station wire
Category 3 cable, commonly known as or station wire, and less commonly known as VG or voice-grade (as, for example, in 100BaseVG), is an unshielded twisted pair (UTP) cable used in telephone wiring. It is part of a family of standards defined jointly by the Electronic Industries Alliance (EIA) and the Telecommunications Industry Association (TIA) and published in TIA/EIA-568-B.