External Telecom Cable Colour Code
The table below gives the colour-coding for external communications cables up to 100 pairs. The code is based on a primary five-colour sequence (Blue, Orange, Green, Brown, Slate) which repeats with a different "mate" or "binder" colour for each group.
Colour Sequence Explained
The system is built on a repeating sequence of five colours: Blue, Orange, Green, Brown, Slate.
- Pairs 1-5: Use a White mate with the five-colour sequence.
- Pairs 6-10: Use a Red mate with the five-colour sequence.
Binder Tape Colour Sequence
For cables with more than 10 pairs, the groups are bundled together with coloured binder tapes. The binder tape colours also follow the main colour sequence.
- Pairs 1-10: Blue binder
- Pairs 11-20: Orange binder
- Pairs 21-30: Green binder
- Pairs 31-40: Brown binder
- Pairs 41-50: Slate binder
- Pairs 51-60: Blue/White binder
- And so on...
Colour Code Table (Pairs 1-10)
| Pair | Line + (Mate Colour) | Line - (Sequence Colour) |
|---|---|---|
| 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 |
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