| Position | Pair | T/R | ± | RJ11 | RJ14 | RJ25 | Twisted pair colors | 25-pair colors[A] | Old colors[B] | German colors[C] | Australian colors | Dutch colors[D] | Diagram |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | T | + | T3 |  white/green |
white/green |
 white |
 pink |
 orange |
 6P6C connector showing the location of pin 1 | |||
| 2 | 2 | T | + | T2 | T2 |  white/orange |
white/orange |
 black |
 green |
 red |
orange | ||
| 3 | 1 | R | − | R1 | R1 | R1 |  blue |
 blue/white |
red |
white |
blue |
red | |
| 4 | 1 | T | + | T1 | T1 | T1 |  white/blue |
white/blue |
green |
 brown |
white |
blue | |
| 5 | 2 | R | − | R2 | R2 | orange |
 orange/white |
 yellow |
yellow |
black |
white | ||
| 6 | 3 | R | − | R3 | green |
 green/white |
blue |
 gray |
green |
- ^ Established in the 1950s for polyethylene-insulated conductor (PIC) cable.Horn, F. W. (October 1958). "'Even-Count' Cable" (PDF). Bell Laboratories Record. 37 (5): 208–217. Retrieved October 13, 2022.
- ^ While the old solid color code was well established for pair 1 and usually pair 2, there are several conflicting conventions for pair 3 (and sometimes even pair 2). The colors shown above were taken from a vendor of silver satin flat 8-conductor phone cable that claims to be standard. 6-pair solid (old) bellwire cables previously used by the Bell System use white for pair 3 tip but some vendors' cable may substitute orange for white. At least one other vendor of flat 8-conductor cable uses the sequence blue, orange, black, red, green, yellow, brown and white/slate.[citation needed]
- ^ This color scheme originates in the (withdrawn) national standard DIN 47100. The scheme shown here is the correct color code for interfacing with the RJ connector standards.
- ^ "(nl) Support document for the 'PTT norm 88'" (PDF). Watel (in Dutch). p. 8. Archived (PDF) from the original on 2016-10-08.