Within the RJ (Registered Jack) standard, the RJ11 has a 2-conductor (6P2C) modular jack. Along with the RJ13, it is commonly used for wall- and baseboard-mounted telephone jacks installed in residences.
Most plugs, jacks and cables sold as RJ11 are actually RJ13 (4 conductor).
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 2023-03-08 09:11 by Stephen B (Revised 2023-03-09 11:27)
Keywords: RJ11, RJ11 Connector, and RJ11 Plug