Ethernet cables; Computer apparatus, namely, a converter that superimposes an Ethernet signal on an existing cable; Fiber optics; 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; Fiber optic cables; Coaxial cables; Electronic test and measurement devices for use in the fields of networks and telecommunications, namely, instrumentation used to test and certify new and existing data and voice communication cable and coaxial cable; Metal grounding bushings and metal grounding clamps, both for use only as parts and fittings for coaxial cable, and not for non-electric cable or machinery or machine parts