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Introduction to Network Cables

Networking  Cables

Networking cable  are the transmission media through which data flows from a source to the  destination.The data is transmitted through these  cable in the form of singals. These signals which  represent data, are propagated from one device  to another  through the transmission media The  types of  Networking cables are :

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1. Twisted Pair Cables
    a) The Shielded Twisted Pair
    b) The Unshielded Twisted Pair
2. Coaxial Cables
3. The Fiber-Optical Cable:
4. USB Cables
5. Serial and Parallel Cables
6. Crossover Cables

1.The Twisted Pairs cable : Contains two cable wires that  use copper as conductor. These wires have plastic insulations are twistes  as in Photo :


One twisted cable wire carries the signal to the receiver and the other cable  wire acts as a ground  reference .At the other  end ,the  reciver obtains the values  of the signal between two cable wire . the cable wires are twisted to provide protection against crosstalk and noise .Twisted cable are use for voice and data communication.

Twisted Pair cable  is two types, STP and UTP

(a).The Shielded Twisted Pair :this  cable  created by IBM  This cable has a metal shield covering each  pair  of insulated  cable wires. This types  of Shielding protects the cable  from external electromagnetic  interferences and crosstalk.An cable is shown in Photo




(B) The UnShielded Twisted Pair : Signifies that the UTP is the most commonly used cable in communications. It is used in Earth net  networks and telephone  Systems. The Utp cable is easy to install, and the charge are cheap.  A UTP cable U can see in photo



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2. The Coaxial Cable :
Consist of  a two conductors  Plz see Photo .One  is the inner conductor of solid copper and also  called  the core  conductor and the  other is the outer conductor. The outer conductor server as a  shield against noise and as a second conductor. There is insulating plastic between  the conductors  and the  whole cable  is covered  with a plastic jacket. The coaxial cable can carry signals of higher Frequency Ranges than twisted Pair cables .
This cable use for T.V. Network and CCTV Network and Traditional Ethernet

3. The Fiber-Optical Cable:
optical fiber cable is a cable containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed. Different types of cable are used for different applications, for example long distance telecommunication, or providing a high-speed data connection between different parts of a building.
         




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