Guided Transmission Media

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this is the presentation about transmission media by cable.

this is the presentation about transmission media by cable.

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Transcript

  • 1.  
  • 2. Topic Included Guided Transmission media
    • Transmission Media
    • Guided Media
    • Types of Guided Media
    • Twisted Pair cable
    • Coaxial Cables
    • Optical Fiber
  • 3. What is Transmission Media
    • Sending of data from one device to another is called transmission of data
    • Medium used to transmit the data is called Media
    • Transmission of data through Medium is called Transmission Media
  • 4. Guided (Wired)
    • Guided transmission media means the data signals are guided along the path like cabling system . They don't have any other way to go they have to pass through the given cable or wire.
  • 5. Types Of Guided Media
    • Guided (Wired)
      • Twisted Pair
      • Coaxial cable
      • Fiber Optics
  • 6. Twisted Pair
    • A twisted pair consists of two insulated copper wires arranged in a regular spiral pattern.
    • Twisted pair may be used to transmit both analog and digital transmission.
    • Twisted pair is limited in distance, bandwidth, and data rate.
    • The attenuation for twisted pair is a very strong function of frequency
  • 7. Twisted Pair Types
    • Unshielded Twisted Pair (UTP)
      • ordinary telephone wire
      • cheapest
      • easiest to install
      • suffers from external EM interference
    • Shielded Twisted Pair (STP)
      • metal braid or sheathing that reduces interference
      • more expensive
      • easiest to install
      • harder to handle (thick, heavy)
  • 8. Coaxial Cable
    • Coaxial cable consist the followings layers in its construction
      • The copper conductor
      • Insulation layer of plastic foam
      • Second conductor or shield of wire mesh tube or metallic foil
      • Outer jacket of tough plastic
    • Coaxial cable can be used over longer distances and support more stations on a shared line than twisted pair.
    • Coaxial cable is used in a wide variety of applications, including:
    • • Television distribution - Aerial to TV systems.
  • 9. Fiber Optics
    • Fiber optic cable is known as most sophisticated cables used in long distance network connection.
    • Through this cable data transmission is done through « Light ray signal  transmission» rather than electrical signal transmission.
    • It has inner core of glass that conducts light.This inner core is surrounded by cladding.
    • Cladding is nothing but layer of glass material that reflects light back into the core.
    • Each fiber is then surrounded by plastic sheath
  • 10.