| means "Registered Jack", the physical connector | | | | jack, with two out of the four wires going to the |
| interface that is most often utilized for handset wire | | | | unused junction box. |
| terminals. | | | | The extra wires could be pushed for a diversity of |
| Although the RJ 11 connector has six connector | | | | special applications, such as a source for selective |
| positions, normally either only two or four are in fact | | | | ringers, as preventing a pulse dial handset from ringing |
| used. RJ11 connector wiring comes in 2 standard | | | | extension phone-bells, powering the L.E.D. ring sign |
| assortments- UTP or Unshielded Twisted Pair and | | | | operating off the ringer indication, etc. |
| flat-satin cable or the untwisted. | | | | In a powered up state, Pins number 5 (old color - |
| RJ-11 connector is the most recognized among the | | | | yellow/ new color- orange) and number 2 (old color - |
| jacks that are registered, because almost all single line | | | | black/new color - white that has orange stripe) can |
| (POTS) handset jacks in the majority of offices and | | | | carry either low voltage DC or AC power, from a |
| homes in North America utilize this connector type | | | | transformer connected in a jack; which gives power |
| and many other countries. | | | | to each of the jacks all through a dwelling. |
| Other similar Jacks Registered include RJ-14 (for a | | | | In most cases, the handset line straightforwardly |
| two line handset jack), RJ-25 (for a three line jack), | | | | provides ample power for majority phone terminals. |
| and RJ-61 (for a four line handset jack), all of which | | | | The old-fashioned handset terminals hold glowing |
| uses six modular connector positions. | | | | lights in them (for example: Trim line phone and the |
| An RJ-11 jack usually uses two out of the six | | | | old Western Electric Princess telephone) and require a |
| positions, so this can be wired with the six position, | | | | lot more energy than the handset line provides, |
| two conductor (6P-2C) modular jack. However, these | | | | because their dial lights require 6.3 volts and the usual |
| kinds of jacks are extremely unusual. Most often, an | | | | transformer output of ~5 volts for long life. |
| RJ-11 jack is a six position, four conductor (6P4C) | | | | |