A CDE Definition
(Universal Service Order Code) An equipment coding system created by AT&T. The number was applied to telephone equipment and to wire termination patterns. See 568A.
An EIA/TIA standard for the termination pattern of an 8-wire RJ-45 cable. 568A and 568B (AT&T 268A) are functionally identical, but use different wire colors for identification. They both differ from the older USOC termination pattern that was widely used by AT&T. See RJ-45.
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