Color Coding Cat 5e and Cat 6 Cable Straight Through and Cross Over

When the RJ-45 connectors first came into use, they were primarily used for telephones. The great advances in technology created a need for another size connector and the RJ-45 was adapted to fit. There are 2 different RJ-45 connector sizes available:

1. for Cat 5 cable and
2. for Cat 6 cable. 

You have to make sure which one suited to their job. Basic difference is, the Cat 6 connector is larger than the Cat 5 connector.

how to crimp rj-45 connector
Crimping Tool

There are also two types of Color Coding for Cat 5e and Cat 6 (Crimping RJ-45):

1. Straight Through (for Switch or Hub)

2. Cross Over (where 2 computers connected with each other without switch or hub)

1. Straight Through Color Coding (for Switch or Hub)

Figure 1.1

  1. Orange white
  2. Orange
  3. Green white
  4. Blue
  5. Blue white
  6. Green
  7. Brown white
  8. Brown






2. Cross Over (for direct connected 2 computers)

Figure 2.1
  1. Orange white
  2. Orange
  3. Green white
  4. Blue
  5. Blue white
  6. Green
  7. Brown white
  8. Brown


 


And Color Coding for other point

Figure 2.2
  1. Green white
  2. Green
  3. Orange white
  4. Blue
  5. Blue white
  6. Orange
  7. Brown white
  8. Brown






Important Note: Cross over color coding has to be different on both side of the cable as mentioned in the figure 2.1 & 2.2, unlike straight through coding, where only one color coding requires for every side of the cable.


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