Standard Cable Color-Coding Reference

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These are the standard color codings for telephone cables containing up to 26 pairs. For cables containing more than 26 pairs, a Binder Color Code wraps multiple bundles of 25 pairs with a colored binder thread. For cables containing more than 600 pairs, a Super Unit Binder Color code is used to separate multiple Binder bundles.


Insulation Band-Marked Color Code

WirePairRing/Tip Color Long/Short Wire Color Markings
1 1 Tip White/Blue              
2 1 Ring Blue/White              
3 2 Tip White/Orange              
4 2 Ring Orange/White              
5 3 Tip White/Green              
6 3 Ring Green/White              
7 4 Tip White/Brown              
8 4 Ring Brown/White              
9 5 Tip White/Slate              
10 5 Ring Slate/White              
11 6 Tip Red/Blue              
12 6 Ring Blue/Red              
13 7 Tip Red/Orange              
14 7 Ring Orange/Red              
15 8 Tip Red/Green              
16 8 Ring Green/Red              
17 9 Tip Red/Brown              
18 9 Ring Brown/Red              
19 10 Tip Red/Slate              
20 10 Ring Slate/Red              
21 11 Tip Black/Blue              
22 11 Ring Blue/Black              
23 12 Tip Black/Orange              
24 12 Ring Orange/Black              
25 13 Tip Black/Green              
26 13 Ring Green/Black              
27 14 Tip Black/Brown              
28 14 Ring Brown/Black              
29 15 Tip Black/Slate              
30 15 Ring Slate/Black              
31 16 Tip Yellow/Blue              
32 16 Ring Blue/Yellow              
33 17 Tip Yellow/Orange              
34 17 Ring Orange/Yellow              
35 18 Tip Yellow/Green              
36 18 Ring Green/Yellow              
37 19 Tip Yellow/Brown              
38 19 Ring Brown/Yellow              
39 20 Tip Yellow/Slate              
40 20 Ring Slate/Yellow              
41 21 Tip Purple/Blue              
42 21 Ring Blue/Purple              
43 22 Tip Purple/Orange              
44 22 Ring Orange/Purple              
45 23 Tip Purple/Green              
46 23 Ring Green/Purple              
47 24 Tip Purple/Brown              
48 24 Ring Brown/Purple              
49 25 Tip Purple/Slate              
50 25 Ring Slate/Purple              
51 26 Tip Red/White              
52 26 Ring White/Red              

Notes: Some cable vendors save manufacturing costs by having using only a single color for theTip wire, and marking the Ring wire with two colors For example, for Pair 1, there would be a solid white Tip wire, and a White/Blue RIng wire twisted together as normal. Once untwisted, as many five identical Tip wires of the same color would be present and this could cause confusion. Such cables require different handling than a cable with fully-marked wires.

On ABAM 28-pair cables or cross-connect bundles (mainly used in DS3 break-out situations), the first 25 pair colors are as shown above. For pairs 26 through 28, the the first three pair combinations are repeated, eg White/Blue, Blue/White, White/Orange, Orange/White, and White/Green, Green/White.


Insulation Solid Color Code

Certain types of telephone wiring use solid color insulation markings rather than banded color codes. Solid color wiring is commonly used for jumper wire, distribution frame wire and station wire.

For sheathed station cables (pairs are usually not twisted) containing four to eight conductors, the following table is used. This includes "flat" cables, also known by the name "Satin Flex", regardless of outer material color. If a wire only has four or six conductors, it always uses the first four or six colors.

WirePairTip/RingColor Wire Color Markings
1 1 Tip Green  
2 1 Ring Red  
3 2 Tip Black  
4 2 Ring Yellow  
5 3 Tip Blue  
6 3 Ring Orange  
7 4 Tip Brown  
8 4 Ring White  

For cables containing more than 8 conductors using solid colors, the pairs must be twisted together and, the following color table is used.

WirePairRing/Tip Color Wire Color Markings
1 1 Tip White  
2 1 Ring Blue  
3 2 Tip White  
4 2 Ring Orange  
5 3 Tip White  
6 3 Ring Green  
7 4 Tip White  
8 4 Ring Brown  
9 5 Tip White  
10 5 Ring Slate  
11 6 Tip Red  
12 6 Ring Blue  
13 7 Tip Red  
14 7 Ring Orange  
15 8 Tip Red  
16 8 Ring Green  
17 9 Tip Red  
18 9 Ring Brown  
19 10 Tip Red  
20 10 Ring Slate  
21 11 Tip Black  
22 11 Ring Blue  
23 12 Tip Black  
24 12 Ring Orange  
25 13 Tip Black  
26 13 Ring Green  
27 14 Tip Black  
28 14 Ring Brown  
29 15 Tip Black  
30 15 Ring Slate  
31 16 Tip Yellow  
32 16 Ring Blue  
33 17 Tip Yellow  
34 17 Ring Orange  
35 18 Tip Yellow  
36 18 Ring Green  
37 19 Tip Yellow  
38 19 Ring Brown  
39 20 Tip Yellow  
40 20 Ring Slate  
41 21 Tip Purple  
42 21 Ring Blue  
43 22 Tip Purple  
44 22 Ring Orange  
45 23 Tip Purple  
46 23 Ring Green  
47 24 Tip Purple  
48 24 Ring Brown  
49 25 Tip Purple  
50 25 Ring Slate  
51 26 Tip Red  
52 26 Ring White  

Binder Color Code

For cables containing more than 25 pairs, the standard color sequence is repeated and each group of 25 pairs is wrapped in a Binder that is colored according to the table below.

Binder Number Binder Color Long/Short Binder Color Markings
1 White/Blue              
2 White/Orange              
3 White/Green              
4 White/Brown              
5 White/Slate              
6 Red/Blue              
7 Red/Orange              
8 Red/Green              
9 Red/Brown              
10 Red/Slate              
11 Black/Blue              
12 Black/Orange              
13 Black/Green              
14 Black/Brown              
15 Black/Slate              
16 Yellow/Blue              
17 Yellow/Orange              
18 Yellow/Green              
19 Yellow/Brown              
20 Yellow/Slate              
21 Purple/Blue              
22 Purple/Orange              
23 Purple/Green              
24 Purple/Brown              

(Information on printing color tables on color printers can be found here. )


[Copyright 2000,2002,2004,2005 Frank Durda IV, All Rights Reserved.
Mirroring of any material on this site in any form is expressly prohibited.
The official web site for this material is:  http://nemesis.lonestar.org
Contact this address for use clearances: clearance at nemesis.lonestar.org
Comments and queries to this address: web_reference at nemesis.lonestar.org]

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