RJ45-stikkets ben 5 og 4 blev forbundet til en enkelt toleder telefonforbindelse - og hunstikkets ben 7 og 8 havde en "programmerende" [[resistor]].<ref>{{cite web |url=http://pe2bz.philpem.me.uk/Comm/-%20Telephone/Site-900-Everything/Plugs/rj45s.html |title=RJ45S (Archived copy) |accessdate=2017-05-22 |url-status=live |archiveurl=https://web.archive.org/web/20180509184226/https://pe2bz.philpem.me.uk/Comm/-%20Telephone/Site-900-Everything/Plugs/rj45s.html |archivedate=2018-05-09 }}</ref>
<ref>{{cite web |url=http://www.hvs.on.ca/modular_jack_wiring.htm |title=Modular Jack Wiring |publisher=Hamilton Video & Sound Limited |archive-url=https://web.archive.org/web/20071014035210/http://hvs.on.ca/modular_jack_wiring.htm |archive-date=2007-10-14 |access-date=2017-05-21 |url-status=dead }}</ref>
<ref>{{cite web |url=http://www.siemon.com/us/standards/13-24_modular_wiring_reference.asp |title=Modular Wiring Reference |publisher=Siemon |accessdate=2010-10-14 |url-status=live |archiveurl=https://web.archive.org/web/20101008203926/http://www.siemon.com/us/standards/13-24_modular_wiring_reference.asp |archivedate=2010-10-08 }}</ref> RJ45 er forældet i dag (2020).
Filosofi Samfund Kemi Videnskab Teknologi Immaterialret