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RJ-11
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RJ-11

RJ-11 is a physical interface often used for terminating twisted pair type cables. RJ stands for Registered Jack which is part of the United States Code of Federal Regulations. It has six pins or electrical connections.

Table of contents
1 Telephone signal polarisation and cable wiring in RJ-11
2 See also
3 External links

Telephone signal polarisation and cable wiring in RJ-11

RJ-61/8P8C, RJ-25/6P6C, RJ-14/6P4C and RJ-11/6P2C Wiring
8P8C 6P6C 6P4C 6P2C Pair Wire T/R +/- Color Old
1 4 1 T4 + white/brown
2 1 3 1 T3 + white/green
3 2 1 2 1 T2 + white/orange black
4 3 2 1 1 2 R1 - blue/white red
5 4 3 2 1 1 T1 + white/blue green
6 5 4 2 2 R2 - orange/white yellow
7 6 3 2 R3 - green/white
8 4 2 R4 - brown/white

(T4 means 4th pair's tip wire, R2 means 2nd pair's ring wire, etc.)

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See also

External links