An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
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3. Twisted-Pair Cable|<br />
Twisted-Pair Wiring Color-Code Chart<br />
The 25-pair color code is used to identify individual conductors of multiconductor<br />
twisted-pair cabling used primarily in backbone applications. The colors are applied<br />
to the insulation that covers each conductor. The first color is chosen from one<br />
group of five colors and the other from a second group of five colors, giving<br />
25 combinations of two colors.<br />
Table 3.1 – Twisted-Pair Wiring Color-Code Chart<br />
1 2 1 2 1 2 1 2<br />
1<br />
1 2<br />
6<br />
1 2<br />
11<br />
1 2<br />
16<br />
1 2<br />
21<br />
2<br />
1 2<br />
7<br />
1 2<br />
12<br />
1 2<br />
17<br />
1 2<br />
22<br />
1 2<br />
anixter.com 23|<br />
3<br />
8<br />
1 2<br />
13<br />
1 2<br />
18<br />
1 2<br />
23<br />
4<br />
1 2<br />
9<br />
1 2<br />
14<br />
1 2<br />
19<br />
1 2<br />
24<br />
1 2<br />
5<br />
1 2<br />
10<br />
1 2<br />
15<br />
1 2<br />
20<br />
1 2<br />
Color Codes 2nd Color<br />
Blue Orange Green Brown Slate<br />
Wire No. in Pair 1 2 1 2 1 2 1 2 1 2<br />
White 1 2 3 4 5<br />
Red 6 7 8 9 10<br />
1st<br />
Color<br />
Black 11 12 13 14 15<br />
Yellow 16 17 18 19 20<br />
Violet 21 22 23 24 25<br />
25
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