25 Pair Telephone Cable Color Code
The tip conductor carries a majority of the tracer color and a minority of the pair color.
25 pair telephone cable color code. Every pair is identified by a combination of 5 tip and 5 ring colors. 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. Phone wire color codes the nitty gritty. Binder color pair range white 1 600 red 601 1200 black 1201 1800 yellow 1800 2400.
International color coding for ul csa control cable. 25 pair color code. Plastic insulated communication cables 25 pair unit colors pair number ring color tip color pair number ring color tip color. The tip color is always placed first and.
25 pair cable s color code table. 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. The pair colors are blue orange green brown slate. First posted nov 29 2003 last update mar 15 2015.
The 25 pair color code is used to identify individual conductors in a telecommunications twisted pair cable. Full color code s u. Pair range 1white blue 1 25 2white orange 26 50 3 white green 51 75 4white brown 76 100. The colors are marked on the conductors insulation.
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. The tracer colors are white red black yellow violet. 1 black 2 brown 3 red 4 orange 5 yellow. Please note that cat5 cable shown for clarity of the illustrations tightly twisted conductors.