Twisted pair comes with each pair uniquely color coded when it is packaged in multiple pairs. Different uses such as analog, digital, and Ethernetrequire different pair multiples.
Although twisted pair is often associated with home use, a higher grade of twisted pair is often used for horizontal wiring in LAN installations because it is less expensive thancoaxial cable.
The wire you buy at a local hardware store for extensions from your phone or computer modem to a wall jack is not twisted pair. It is a side-by-side wire known as silver satin. The wall jack can have as many five kinds of hole arrangements or pinouts, depending on the kinds of wire the installation expects will be plugged in (for example, digital, analog, or LAN) . (That's why you may sometimes find when you carry your notebook computer to another location that the wall jack connections won't match your plug.)
It is called RJ45.
The twisting in a twisted pair cable helps make the cable immune to electromagnetic interference. These cables are of two types: Shielded and unshielded twisted pair.
RJ-45 connector
if by "twisted pair cable" you mean a cat5 cable which is commonly used as an ethernet cable. then it´s made of copper.
with RJ 45 conecter & unshilded twisted pair cable
twisted pair cable can used as LAN connections....for example CAT5 and CAT6 both twisted pairs.
Twisted pair wiring is a digital signal.Coaxial cable is an analog signal.
cable
Shielded Twisted pair cable
A twisted pair cable consists of two copper conductors, each one with its own plastic insulation and twisted together
Twisted pair cables were invented by Alexander Graham Bell in 1881.
CAT 5 Cable and RJ 45 Cable (Twisted-pair Ethernet). Unshielded twisted-pair (UTP) cable