Cisco 7000 Series Hardware Installation And Maintenance Manual page 273

For smaller numbers of wires, such as wires for an individual telephone station or terminal, you may
use a second color code scheme. Table C-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 colored wires.
Table C-2 Second Color Code Scheme for Smaller Numbers of Wires
Pair Number Wire Number
1 1
1 2
2 1
2 2
3 1
3 2
Solid Color Stripe Color
White Blue
Blue White
White Orange
Orange White
White Green
Green White
Alternate Color Pin Number
Green 4
Red 3
Black 2
Yellow 5
White 1
Blue 6
Industry-Standard Wiring Plans C-3