What Does Unshielded Twisted Pair Cable (UTP) Mean?
Unshielded twisted pair (UTP) cables are widely used in the computer and telecommunications industry as Ethernet cables and telephone wires.In an UTP cable, conductors which form a single circuit are twisted around each other in order to cancel out electromagnetic interference (EMI) from external sources. Unshielded means no additional shielding like meshes or aluminum foil, which add bulk, are used.
UTP cables are often groups of twisted pairs grouped together with color coded insulators, the number of which depends on the purpose.