BT wiring colour codes

A sheet with the colour coding for BT voice cabling has been kicking around in the bottom of my toolkit for years, with the net effect that it’s never to hand when I need it. The last time I needed it I had Google to hand, but it took waaay too long to find the information, mainly because I couldn’t figure out the search string that would bring back the right hits. So this time I’m giving a title that means something to me, in the hope that Google will pick it up and I won’t have to ratch around for it again.

1 - No connection
2 - BLUE with WHITE rings
3 - ORANGE with WHITE rings
4 - WHITE with ORANGE rings
5 - WHITE with BLUE rings
6 - No connection

Simple enough when you know it, but impossible to remember if you don’t.

Filed under Geek |