In my Masterlink Setup at home i use Cat7. Cabling with Patchpanel in the Serverroom and Cat. RJ45 Wall Outlets with the original B&O Masterlink Cable to RJ45. Now i have some Problems with my BeoLink Active that won’t work. In the B&O Handbook 1.5 and 1.9 i saw that the Pin Outs of the RJ45 Plug changed. The Part No. are always the same. There was a third Cable (ML-LexCom Home/IHC Net) which has also different Pin Outs at RJ45. Totally i have 8 ML->RJ45 which i buyed over the years. My thought is that some cables have different PIN Outs and thats the reason for the wrong working. For example: My BeoLink Active left channel are half as loud as the right channel. It may be Caused by missing L+ or L- in the balanced wiring.
