olvisab:Cat 6 should be enough, don't you think
Cat 6 or 7 is of no importace as long you are using the cable for analog MasterLink or PowerLink.
But the layout (construction) of the cable is very important!
You need a screened / shielded cable + each twisted pair being seperately shielded/foiled.
B&O recommends/sells Cat 7 - S/FTP cable (Screened / Foiled Twisted Pair) from "TYCO"
Any Cat 6 or Cat 7 cable described as:
S/FTP = Screened / Foiled Twisted Pair
S/STP = Screened / Shielded Twisted Pair
F/FTP = Foiled / Foiled Twisted Pair
SF/FTP = Screened & Foiled / Foiled Twisted Pair
should do the analog ML/PL job properly.
PS: keep in mind - in the future - in a B&O "all digital" NetworkLink installation you might
need the higher bandwidth offered by a Cat 7 cable ...