Question by Ben Whorton posted 21 Jan 2003
| RJ11 v. RJ12|
|What is the difference between RJ11 and RJ12 and can you use one in place of the other, ie: are they interchangeable as long as it's consistent throughout the wiring? Thanks in advance!|
Answer by Dmitri Abaimov posted 28 Jan 2003
These are essentially the same jack. RJ11, however, has only 4 positions connected while RJ12 has all 6. As long as your system does not use 6 wires to operate, you should be fine with either one of those.
Usually, analog phone takes a center pair of pins, which works with both connectors.
Dmitri Abaimov, RCDD
Click here to see the expert's profile