Computer network adapters, switches, routers and hubs; Document printers for use with computers; Electric cables and wires; Electronic and optical communications instruments and components, namely, optical transceivers; Infrared detectors for use in military, law enforcement, civil, scientific and industrial applications; Luminoflux meters; Optical fiber cables; Phase shifters for communications apparatus; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, ...