Showing posts with label utp. Show all posts
Showing posts with label utp. Show all posts

Sunday, August 22, 2010

UNSHIELDED TWISTED PAIR CABLE

UTP (Unshielded Twisted Pair)

UTP, or Unshielded Twisted Pair, is a type of cable used in telecommunications and computer networks. It consists of different numbers of copper wire that have been twisted into matching pair. It differs from screened and shielded twisted pair, in that the individual pair are not protected with additional protection from interference. Each copper wire is insulated, and the groups of twisted pair have a sheathing holding them together, but no additional insulation is provided. UTP comes in many different types and sizes, and is primarily used as node cabling, meaning it runs from a backbone unit to the individual components on the network.

Types


UTP comes in different types called Categories, often abbreviated as "Cat". The most common are Cat 3, Cat 5e, and Cat 6. The higher the category number, the more twists per foot in the pair, and the better protection from interference. Cat 3 is usually used for home telephone systems. Cat 5e is the industry standard for computer networks and large telephone systems. Cat 6 is an improvement on Cat 5e and is starting to become the favorite for new installs due to its increased speed and protection from interference

TWISTED PAIR CABLE

A type of cable that consists of two independently insulated wires twisted around one another. The use of two wires twisted together helps to reduce crosstalk and electromagnetic induction. While twisted-pair cable is used by older telephone networks and is the least expensive type of local-area network (LAN) cable, most networks contain some twisted-pair cabling at some point along the network.

OR

Twisted pair cable consists of a pair of insulated wires twisted together. It is a cable type used in telecommunication for very long time. Cable twisting helps to reduce noise pickup from outside sources and crosstalk on multi-pair cables.

 TYPES
  1. STP
  2. UTP
STP (shielded twisted pair)


Short for Shielded Twisted-Pair cable, STP is a type of cable originally developed by IBM for Token Ring that consists of two individual wires wrapped in a foil shielding to help provide a more reliable data communication. Shielded twisted pair is a special kind of copper telephone wiring used in some business installations. An outer covering or shield is added to the ordinary twisted pair telephone wires; the shield functions as a ground.