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it into your mouth) with the lock tab down, then the pins are it into your mouth) with the lock tab behind, then the pins are Now days many telcos are using twisted pair ethernet, Cat 5 and above, for all telephone wiring in home and office. See our [[Telephone RJ11 Wiring Reference]].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]]Always hold the cable upward with the lock tab facing behind and cable facing up. Slide the RJ45 connector down onto the colored pairs carefully so they are not misaligned both in color and evenness of cut length on top where they will rest against the inside slots of the RJ45 connector.