Automatic switching apparatus; Change-over switches; Computer apparatus, namely, a converter that superimposes an Ethernet signal on an existing cable; Computer network adapters, switches, routers and hubs; Computer network hubs, switches and routers; Computer network switches; Computer switches; Converters, electric; Electronic switchers for audio and video signals; Ethernet adapters; Ethernet controllers; Ethernet repeaters; Ethernet switches; Ethernet transceivers; Free-space optics transm...

Computer hardware; computer chassis; open frame computer chassis for enclosed electrical modules; enclosed electrical computer modules; power modules for powering enclosed electrical computer modules; line modules for containing electrical components to be connected to a computer chassis; switch modules for switching data between electrical components; control modules for controlling the function of other computer modules and electrical components; casings specifically adapted for the aforeme...