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RJ11 is commonly used to connect DSL modems to the customer line. [ citation needed ] The conductors other than the two central tip and ring conductors are in practice variously used for a second or third telephone line, a ground for selective ringers , low-voltage power for a dial light, or for anti-tinkle circuitry to prevent pulse dialing ...
The connector is also used in other telecommunications connections, including ISDN and T1. Where building network and telephone wiring is pre-installed, the center (blue) pair is often used to carry telephony signals. While this allows an RJ11 plug to connect, it may damage the modular jack; an approved converter prevents damage.
For example, telephone cables in the UK typically have a BS 6312 (UK standard) plug at the wall end and a 6P4C or 6P2C modular connector at the telephone end: this latter may be wired as per the RJ11 standard (with pins 3 and 4), or it may be wired with pins 2 and 5, as a straight-through cable from the BT plug (which uses pins 2 and 5 for the ...
This article is supported by Computer hardware task force (assessed as Mid-importance). The contents of the RJ11, RJ14, RJ25 page were merged into Registered jack on 2010-02-23. For the contribution history and old versions of the redirected page, please see its history ; for the discussion at that location, see its talk page .
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In North America no adapter is needed for certain uses: With ports wired in the preferred standard T568A pattern, for the 6P2C plugs most commonly used for single-line phone equipment (e.g. with RJ11), and 6P4C plugs used for two-line phones without power (e.g. with RJ14) and single-line phones with power (again RJ11), telephone connections are ...
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This page was last edited on 21 November 2023, at 11:00 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.