Used to define the wiring standards for RJ-45 connectors
RJ-45 Connector Pin Standards (T568A, T568B)
Transclude of content_dam_etc_medialib_new_lib_cablinginstall_online_articles_2011_03_t568a_and_t568b_wiring_schemes_9129.avifYou do not have to follow any specific standard, but you must make sure to keep to the standard you set as connectors and ports are incompatible if they are different standards.