Sunday, January 6, 2013

Ethernet Cable Tips


  • A straight-thru cable has identical ends.
  • A crossover cable has different ends.
  • A straight-thru is used as a patch cord in Ethernet connections.
  • A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
  • A crossover has one end with the Orange set of wires switched with the Green set.
  • Odd numbered pins are always striped, even numbered pins are always solid colored.
  • Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
  • No more than 1/2" of the Ethernet cable should be untwisted otherwise it will be susceptible to crosstalk.
  • Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Ethernet cables near noise inducing components.
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