Coaxial cables; Computer networking hardware; Data processing apparatus; Data processing equipment, namely, couplers; Electronic and optical communications instruments and components, namely, optical receivers; Electronic and optical communications instruments and components, namely, optical transceivers; Electronic and optical communications instruments and components, namely, optical transmitters; Electronic and optical communications instruments and components, namely, optical data links; Ethernet adapters; Ethernet controllers; Ethernet transceivers; Fiber optic cables; Fiber optic instruments, namely, Fiber optic modules; Switchboards; Transceivers; Transmitters of electronic signals; Transponders; Wires, electric; 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