by increasing and varying the number of twists in each wire pair
In order to minimize crosstalk and prevent electromagnetic interference (EMI).
4 pairs of wires.
Coaxial.
UTP
UTP Is unshielded and STP is shielded UTP generally being bulkier and more expensive.
UTP - group - was created in 2003.
UTP - group - ended in 2007.
UTP stands for Unshielded Twisted Pair.
CAT-4 cable meets those requirements.
four pairs. white/blue, white/orange, white/green and white/brown
No. Twisted UTP or Unshielded Twisted Pair is not needed but is the common wire used.The only requirement is that you use minimum CAT5 or CAT6 wire that are correctly wired. There are 3 different methods to wire them in, I am assuming you are just buying the wire already finished.Any retailer will sell the correct wire you need already assembled in a slew of different lenght's. I recommend not letting sales people talk you into expensive wire as there is exactly NO benefit to purchasing the "monster cable" brand or whatever other "gold plated" "oxygen enriched" wiring they may try to push on you.