Hi ...my pc was reporting reverse polarity ....so I got the multimeter out ...put the -48 on B and 0v on A ....but after putting the vdsl faceplate on ....the A terminal is -48 and B is 0v, ...so ive had to reverse those wires aswell, don't make sense lol. Shouldn't the vdsl faceplate B terminal be -48? ....the same as the main socket B terminal?. Could use some help here guys. I want to wire it correctly ...and the correct way says white/blue stripe to A ....blue/white stripe to B ...but I end up with reverse polarity lol. Since doing this my snr is all over the place ....and attainable sync is lower on the download side ....I want normal polarity but with the correct wires to the idc ...because there twisted pairs ....I read the wrong way can affect snr? Is my vdsl faceplate swapping the polarity ? ....is it broke ?