RJ12 Jack

Within the RJ (Registered Jack) standard , the RJ12 utilises a 6-conductor (6P6C) modular jack. It is plug-compatible with, but less common, than the RJ11 and RJ13 jacks used for wall- and baseboard-mounted telephone jacks installed in residences. As such, RJ12 jacks, plugs and cables are often mistakenly called RJ11. The British Telecom 431A/631A telephone … Read more