Phone Wiring Color Code Book

The old color code in uk until 2004 is shown below.

Phone wiring color code book. In the old iec color code all the lines in three phase supply are either brown or black. Newer homes can have anything from cat 3 3 pair on up to cat 5e with 4 pairs with the insulation colors being a combination of solid and solid with white for each wiring pair. Tip ring green. Not used in new installations anymore pair one green and red used for phone line 1 pair two yellow and black used for phone line 2 pair three white and blue used for phone line 3 pair four brown and orange used for phone line 4 color code two is the new industry standard used today.

In some jurisdictions all wire colors are specified in legal documents. Neutral neutral wiring should be white. The kind of wire shown above has recently become obsolete. Advice for home phone wiring and jacks with information about adding second or third line dsl and reference for wire color codes.

Ground ground wiring can be green or green with a yellow stripe. The wire pair colors are blue orange green and brown. Binder color pair range white1 600 red601 1200. Cec color code for canada.

White red white black white yellow white violet red black red yellow red violet black yellow black violet yellow violet blue orange blue green blue brown blue slate orange green super unit binder colors for full color code s u. Wiring for ac and dc power distribution branch circuits are color coded for identification of individual wires. For all new telephone wiring projects you should use cat 5 cable. Most phone wire installed in the u s.

Older telephone wiring was a basic cat 3 4 conductor or 2 pairs with red green black yellow. In that case local custom dictates the. This solid color code actually goes up to 25 pair however the colors will frequently vary from one manufacturer to another on pairs beyond white blue. All of the cat 5 wire i ve seen uses the following color coding.

Before that it had its own code for electrical wiring. In other jurisdictions only a few conductor colors are so codified. Hence the new color code is introduced. Also buy wiring materials and tools here.

Color code one is the old solid color code. In some uncommon situations one phase will have a higher voltage than the others. This created a lot of problem.