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Chart 13

Cable containing up to 25 cores Cable containing over 25 cores up to 36 cores
Colour Core Number Colour
Red 1 Red
Blue 2 Blue
Green 3 Green
Yellow 4 Yellow
White 5 White
Black 6 Black
Brown 7 Brown
Violet 8 Violet
Orange 9 Orange
Pink 10 Pink
Turquoise 11 Turquoise
Grey 12 Grey
Red/Blue 13 Red/Blue
Green/Red 14 Green/Red
Yellow/Red 15 Yellow/Red
White/Red 16 White/Red
Red/Black 17 Red/Black
Red/Brown 18 Red/Brown
Yellow/Blue 19 Yellow/Blue
White/Blue 20 White/Blue
Blue/Black 21 Blue/Black
Orange/Blue 22 Orange/Blue
Yellow/Green 23 Green/Blue
White/Green 24 Grey/Blue
Orange/Green 25 Yellow/Green
- 26 White/Green
- 27 Green/Black
- 28 Orange/Green
- 29 Grey/Green
- 30 Yellow/Brown
- 31 White/Brown
- 32 Brown/Black
- 33 Grey/Brown
- 34 Yellow/Violet
- 35 Violet/Black
- 36 White/Violet
Note: Cables with 50 or more cores are identified by a red and blue core laid adjacent to one another in each layer, the remainder of the cores in each layer being white. (Multicoloured cores are also available). *Cable reference 16-2-10C is a 5 pair cable coloured as follows: Pair 1 white, blue; Pair 2 white, orange; Pair 3 white, green; Pair 4 white, brown; Pair 5 white, grey. **The colour code of 25 core cables has core colours 23, 24 and 25 replaced with colours 25, 26 and 28
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