Computer apparatus, namely, a converter that superimposes an Ethernet signal on an existing cable; Computer keyboards; Ethernet adapters; Ethernet repeaters; Fiber optic connectors; Optical fiber connectors; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregato...