The following lines were added (+) and removed (-):
For the T568B standard, which is the most common used in the United States, be sure to observe which way you are holding the cable in your hand when you line up the colored pairs. Some people inadvertently cross wire (not cross-over) their network cable not because they didn't have the colors in the correct order, but because they were holding one end facing upward, and the other facing downward. See illustration below:[[File:EthernetXXXXwiringdontcross.jpg]]