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Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
Appendix D Industry-Standard Wiring Plans
Telephone Wire Color Codes
For small wiring groups, such as wires for an individual telephone station or terminal, you may use a
second color-code scheme. Table D-2 lists this color code and the usual correspondence with the
paired-wire color code. The alternate color code is included, because sometimes the station wire uses
the first three pairs of the standard color code (white-blue, blue-white, and so on), while other times it
uses the six alternate color wires.
Table D-3 Alternate Color Code Scheme for Smaller Numbers of Wires
Pair Number Wire Number Solid Color Stripe Color Alternate Color Pin Number
11WhiteBlueGreen4
12BlueWhiteRed3
21WhiteOrangeBlack2
2 2 Orange White Yellow 5
31WhiteGreenWhite1
3 2 Green White Blue 6