Phone Wiring Color Code Book

In other jurisdictions only a few conductor colors are so codified. For all new telephone wiring projects you should use cat 5 cable. All of the cat 5 wire i ve seen uses the following color coding.

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In the old iec color code all the lines in three phase supply are either brown or black.

Phone wiring color code book. In some uncommon situations one phase will have a higher voltage than the others. 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. Hence the new color code is introduced. The old color code in uk until 2004 is shown below.

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. Advice for home phone wiring and jacks with information about adding second or third line dsl and reference for wire color codes. Most phone wire installed in the u s. In that case local custom dictates the.

Older telephone wiring was a basic cat 3 4 conductor or 2 pairs with red green black yellow. Cec color code for canada. Binder color pair range white1 600 red601 1200. During the second half of the 20th century is of the following kind.

Ground ground wiring can be green or green with a yellow stripe. Phase 3 phase 3 wiring should be blue. The kind of wire shown above has recently become obsolete. In some jurisdictions all wire colors are specified in legal documents.

The wire pair colors are blue orange green and brown. Uk started using the iec code from march 2014. Neutral neutral wiring should be white. This created a lot of problem.

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. Also buy wiring materials and tools here. Wiring for ac and dc power distribution branch circuits are color coded for identification of individual wires. 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. Before that it had its own code for electrical wiring. Color code one is the old solid color code.