Cat6 FTP shielding I received a edexcel patch panel for a cat6 ftp cable, I was puzzled by the diagram. It shows I should cut away the foil. I am used to pulling the foil back and placing it under the bar clamp. Is it ok to cut away the foil and just punch down the drain wire ?

Depending on the clamp size and form, it may be necessary to remove insulation for a clean fit. Otherwise it's fine to clamp over foil and outer insulation.