Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of cancelling out electromagnetic interference (emi) from external sources; for instance, electromagnetic radiation from unshielded twisted pair (utp) cables, and crosstalk between neighbouring pairs.
4 pairs foilded twisted pair (ftp) cable
conductor metal: solid bare copper with 23 awg
shield: aluminum polyester foil
color code: black
drain wire: 26 awg
jacket material: double sheath, pvc inner sheath, uv pvc outer sheath
pe central cross separator