Telecommunications Wiring Color Code

There is a color code standard in tia tia 598c that addresses this issue which we could adopt and reference.

Telecommunications wiring color code. The 25 pair color code originally known as even count color code is a color code used to identify individual conductors in twisted pair wiring for telecommunications. A colour code according to iec 189 3 note. Those five colors are expanded by. Here is what it recommends.

The neutral is white the hot live or active single phase wires are black and red in the case of a second active. A color code or colour code is a system for displaying information by using different colors. Three phase lines are red black and blue. As chemistry and other technologies advanced it became expedient to use coloration as a signa.

Colored outer jackets or print may be used on premises distribution cable premises interconnect cable or interconnect cord or premises breakout cable to identify the classification and fiber sizes of the fiber. Telecommunications technical information color code chart 1 2 3 4 5 6 9 8 7 10 11 12 13 14 15 s3 5 g y s3 6 r y s3 7 bl y s3 8 r y s3 2 r bk s3 1 g bk s3 14 s3 13 bl y s3 4 s3 3 bl bk s3 9 s3 10 bl y r y s3 11 bl y s3 12 r y u 25 w br u 25 w bl u 25 r s u 25 r br u 25 w g u 25 w o u 25 r g u 25 r o u 25 r bl u 25 w s u 25 bk o u 25 bl bk s 4 r y 1 2 3 4 5 6 7 8 9 10 11 s 5 g bk s 15 g y s 1 g y s 3 bl y s 10 r bk s 23 bl y s 24 r y s 25. The earliest examples of color codes in use are for long distance communication by use of flags as in semaphore communication. The colour yellow green should be reserved for earth or safety wires b colour code cable make up according to icea s 80 576 in accordance with icea publication s 80 576 2002 the colour code is composed of ten 10 distinctive colours to identify 25 pairs.

The united states national electrical code requires a bare copper or green or greenyellow insulated protective conductor a white or grey neutral with any other colour used for single phase. Canadian wiring is governed by the cec canadian electric code. The 25 pair color code is the foundation. The united kingdom adopted a color code scheme for such communication wherein red signified danger and white signified safety with other colors having similar assignments of meaning.

The initial five colors are blue orange green brown and slate aka. By reading these two colors the base and the strip you can determine which wire pair out of the group of 25 wire pairs you have. Fiber optic cable and connector color codes. Look at the table below the color code starts with a base color or wire color the first on the list is white and second color blue is in the form of a strip on the wire.

According to the old standard red is used for live or line power conductor black for neutral and green for protective earth or ground. Video shows the actual wires and a chart.