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 sockets look similar to the RJ11 jack but are not compatible.
Compare RJ11 (6P2C), RJ12 (6P6C), RJ13 (6P4C), RJ18 (6P6C) and RJ25 (6P6C).
Created 2023-03-09 07:49 by Stephen B (Revised 2023-03-09 11:28)
Keywords: RJ12, RJ12 Connector, and RJ12 Plug