Friday, February 01, 2008

4 UTP Cable


NETWORK CABLING

4 UTP CABLE :

  1. Unshielded Twisted Pair

  2. Shielded Twisted Pair

  3. Coaxial Cable

  4. Fiber Optic Cable

* kabel-kabel UTP boleh ditarik / digunakan sepjg max 100 meter.
1. Unshielded Twisted Pair

Telekomunikasi - ( Telefon, Internet, pc 2 pc, point 2 point, node 2 node)


DEFINITION: This definition closely duplicates the definition for twisted pair.

Unshielded twisted pair is the most common kind of copper telephone wiring. Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted.


Reference : http://www.bitpipe.com/tlist/Unshielded-Twisted-Pair-Cable.html




2. Shielded Twisted Pair
Pengalir - ( tahan gangguan elektrik / elektronik, distance )




3. Coaxial Cable

Tv, CCTV

Coaxial Cable - Orginally used for the cable television industry coaxial cable is now widely used for computer networks. Although it is more expensive than standard telephone wires it is less susceptible to interference and can transmit more data.


Reference - http://www.24by7.ca/glossary.htm



4. Fiber Optic Cable
Terdapat gentian kaca di dalamnya. – (Mahal, Rapuh, Tahan haba & kelembapan, cahaya, noise (bunyi bising), Server, Penghantaran data (laju)

Defination :
Optical fiber (or "fiber optic") refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic wire or fiber. Optical fiber carries much more information than conventional copper wire and is in general not subject to electromagnetic interference and the need to retransmit signals. Most telephone company long-distance lines are now of optical fiber.
Transmission on optical fiber wire requires repeaters at distance intervals. The glass fiber requires more protection within an outer cable than copper. For these reasons and because the installation of any new wiring is labor-intensive, few communities yet have optical fiber wires or cables from the phone company's branch office to local customers (known as local loops).
A type of fiber known as single mode fiber is used for longer distances; multimode fiber fiber is used for shorter distances.

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