25 Pair Cable Colors

After 625 pairs are thusly identified the first 625 pair bundle is wrapped in a white blue ribbon etc.

25 pair cable colors.

The second group of colors is. Blue orange green brown slate. Here is an image of the color code. The sequence of second group colors can be remembered with the mnemonic.

The tip color is always placed first and. White orange red 3. The first primary color is chosen from one group of five colors and the other secondary color from a second group of five colors giving 25 combinations of two colors. Telephone wire color code 25 pair telephone cables are grouped in fives.

25 pair cable color code. 25 pair telco cable pinout. The first group of colors is. 25 pair color code.

Why run backwards you varmint white red black yellow violet another mnemonic for the first group is. Every pair is identified by a combination of 5 tip and 5 ring colors. In the 25 pair cable each pair has a wire of the major mate color white red black yellow or violet and one of the minor color color blue orange green brown or. This code is used for 25 pair cable and for cables in multiples of 25 pair including 100 and 250 pair cables.

The tracer colors are white red black yellow violet. Pair tip ring. For cables with over 25 pairs the first 25 pairs called a binder group are marked with mylar ribbons using the colors of the color code starting with a white blue ribbon the second binder group with a white orange ribbon and so on through the 24th binder group which has a violet brown ribbon and forming a super binder of 600 pairs. The first group colors can be remembered with the mnemonic.

The colors are marked on the conductors insulation. White red black yellow violet. White blue green 2. You will see the same color code in a lesser grade cable cat3 voice grade but the conductors of the pair will not be as close together and so.

25 pair cable s color code table. After the first 25 pairs the first bundle of 25 are wrapped in a white blue ribbon and the second 25 are wrapped in a white orange ribbon etc. A common application of the 25 pair color code is the cabling for the registered jack interface rj21 which uses a female 50 pin miniature ribbon connector as shown in the following table the geometry of the pins of the receptacle right hand image corresponds to the pin numbers of the table. Bogbrush blue orange.