The cable will have three pairs: Blue, White and Orange. Only the Blue Pair is used. You will also need an Insertion Tool.
On the back of the faceplate of the Master socket you will find either 4 or 6 numbered connectors. Connect the Blue pair of wires as follows: Blue & White to connector 2 and White & Blue to connector 5. Connect NO OTHER wires. (Tuck them neatly out of the way.)
At the Extension Socket end of the cable, connect the Blue pair of wires exactly the same as above. Simples!
T, December 2010