Connecting A Network Cable - HP compaq Hardware Manual

Communication Devices

Connecting a Network Cable

A network cable has an 8-pin RJ-45 connector at each end. If the
network cable contains noise suppression circuitry, which
prevents interference from TV and radio reception, orient the
circuitry end of the cable toward the notebook.
RJ-45 network cable with noise suppression circuitry
6–4 Hardware Guide