BUS TOPOLOGY

o  Drop Lines and Taps
o  Drop Line is the connection between device and the main cable (Backbone)
¾  Tap is a connector that;
Splices into the main cable   or
Punctures the sheathing of a cable to create connection with the
metallic core


  Signal degrades as it travels, therefore there is a limit on:
  The number of Taps a Bus can support and
  The distance between those Taps

™ Advantages of BUS TOPOLOGY

  Easy to install
  Backbone can be laid on the most efficient path and then rest of the nodes can be connected using Drop Lines
  Less cabling than Mesh , Star or Tree
  Difference b/w Star Cabling and Bus Cabling


™  Disadvantages of BUS Topology

  Difficult Reconfiguration
  Difficult to add new devices
   adding new devices may require modification of backbone 

  No Fault Isolation
  A fault or break in backbone can disable communication even on the same side of the problem
  Damaged area reflects signals back in the direction of origin creating Noise in both directions