| gen. |
RJ (Alexander Demidov); registered jack (A Registered Jack (RJ) is a standardized telecommunication network interface for con voice and data equipment to a service provided by a local exchange carrier or long distance carrier. Strictly, registered jack refers to both the female physical connector (modular connector) and its wiring, but the term is often used loosely to refer to modular connectors regardless of wiring or gender, such as in Ethernet over twisted pair. There is much confusion over these connection standards. The same six-position plug and jack commonly used for telephone line connections may be used for RJ11, RJ14 or even RJ25, all of which are names of interface standards that use this physical connector. The RJ11 standard dictates a 2-wire connection, while RJ14 uses a 4-wire configuration, and RJ25 uses all six wires. The RJ abbreviations, though, only pertain to the wiring of the jack (hence the name registered jack); it is commonplace, but not strictly correct, to refer to an unwired plug connector by any of these names. WK Alexander Demidov) |
