Computer network adapters, switches, routers and hubs; Computer network hubs, switches and routers; Computer network switches; Demultiplexers; Electronic and optical communications instruments and components, namely, optical transceivers; Ethernet switches; Free-space optics transmission systems, Ethernet switches and routers, and software sold both as components thereof and separately, namely, software adapted and arranged for operating, installing, testing, diagnosing and managing the forgoing telecommunication equipment; Multiplexers; Optical fibres; Optical fibres, telephone receivers, switchboards, telephone and telegraph wires, video telephones; Telecommunication switches; 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 aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Telecommunications multiplexers; Transceivers