Wiring Diagram Cable. This is called two core and earth cable. Brownwhite and brown wire are in the pin 7 and 8.
Remember that pin 1 is on the left hand side of the rj45 connector with the clip at the rear. The wires are enclosed in an outer sheet and are flat twinearth cables. Hopefully this will make it clearer as to what the wires at the ceiling rose are for.
Usb c packs 24 pins into the usb connector.
Enables to combine single wires into cables and cable bundles. The white wire is the positive data wire. The red wire is a positive power wire with 5v of dc power that provides power to the usb device. If you are searching for cat cable wiring diagram you are at the right site.