Powerline networking makes use of cabling that is already present in every house – the mains electrical circuit. Electrical power is supplied and distributed around your house at 50Hz. However, it’s possible to superimpose higher frequencies that can carry data, similar to the way that our humble phone wiring can be made to carry broadband ADSL
signals. Powerline technology takes advantage of this unused bandwidth of the electrical wiring in the home to create a network. The powerline device plugs into the power socket and draws electricity for the device. At the same time, it sends data signals down the power circuit. A second powerline device can then be plugged into any other socket on the same electrical circuit to receive the signal. Setting it up is really simple: you just plug the powerline adapter in to a power socket and connect the adaptor to your router or modem with a network cable. You repeat this in the other room, where the other network outlet is to go, this time connecting that powerline adapter to the PC’s network port. Status lights on each adapter confirm that you have an active network connection and that all is working well. And that’s about it. copper cable ethernet cords are no different than copper cables in the walls