Crossover Cable

Crossover Cable

Crossover cable are used to connect two computer by reversing (crossing over) their respective pin contacts. A crossover cable seems to be similar to straight-through cable. A crossover cable can be created by reversing the order of the wires inside a cable, so that it can connect two computer directly.

 

The various advantages of using crossover cables are as follows:

  • Allows you to connect two computers directly
  • Allows you to connect a router to a switch/hub
  • Allows you to connect two switches or hubs

You can use a crossover cable to create a direct cable connection when you want to connect two computers but do not have access to a network and cannot set up an ad hoc network. These cables are beneficial in the condition when a network router, switch, or hub is not present. Perform the following steps to construct a crossover cable:

  1. Unroll the required length of a network cable.
  2. Remove the outer jacket of the cable.
  3. Untwist the pairs so that they will lay flat between your fingers.
  4. Arrange the wires based on the wiring specifications. In our case, we are using the 568B standard. The wires are arranged in the following order, from left to right.
  • White-orange
  • Orange
  • White-green
  • Blue
  • White-blue
  • Green
  • White-brown
  • Brown
  1. Press all the wires flat and parallel between your thumb and forefinger. 6. Cut the top of the wires even with one another so that they are 1/2″ (12.5 mm) long from the base of the jacket.
  2. Push the wires into the RJ-45 plug with the flat surface of the plug on top while keeping them flat.
  3. Place the wired plug into the crimping tool.
  4. Press the handle firmly. You should hear a ratcheting noise. A crossover cable has one end wired 568A and the other end wired 568B. In our case, we have already wired one end as 568B; therefore, now let’s proceed to wire the other end as 568A.
  5. Repeat the steps 1 to 3 with the other end of the cable.
  6. Arrange the wires based on the wiring specifications. In our case, we are using the 568A standard. The wires are arranged in the following order, from left to right:
  • White-green
  • Green
  • White-orange
  • Blue
  • White-blue
  • Orange
  • White-brown
  • Brown
  1. Repeat the steps from 5 to 9
  2. Test the cable using a cable wiring distribution components in the next section.
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