At the moment only the Scart cable is shown here.
Connection diagrams of the old style DIN keyboard connector and the newer PS/2 keyboard and mouse connectors.
Some serial connectors, including a so called Null Modem Cable.
Standard UTP ethernet cables are always too short, or their plugs won't fit through a pipe or hole you've drilled.
Therefore you'll have to crimp the RJ-45 connectors to the cable yourself.
Here's how to do that.