How Shielded Twisted Pair?

Shielded twisted pair (STP) is a special kind of copper telephone and local area network (LAN) wiring used in some business installations. ... To reduce cross-talk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each signal on twisted pair requires both wires.

Why twisted pair cable is shielded?

Shielded twisted pair cabling (STP) reduces electromagnetic and radio frequency interference from other devices and electronic objects to ensure a steady signal. ... Each pair is twisted together to reduce crosstalk interference from the other wire pairs in the bundle.

What are the different types of shielding for twisted pair cable?

There are commonly two types of shielding used on Category Cables: Foil Shield and Braided Shield. A foil shield consists of an Aluminum foil that is wrapped around all of the twisted pairs as an "overall foil shield" or it may be used around each individual pair of wires as "each pair shielded".