Communications headsets for use with communication radios, intercom systems, or other communications network transceivers; Computer network adapters, switches, routers and hubs; Computer storage devices, namely, high-speed storage subsystems for storage and backup of electronic data either locally or via a telecommunications network; Electronic and optical communications instruments and components, namely, optical receivers; Electronic and optical communications instruments and components, namely, optical transceivers; Ethernet transceivers; Home networking modules comprising electronic components being electric cabling panels and associated wiring; 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 transmitters; Transceivers