9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, emergency and teaching apparatus and instruments, namely electronic test and measuring 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; telecommunications and data networking hardware, namely devices for transporting and aggregating voice, data and video communications across multiple infrastructures and communications protocols, IP (Internet Protocol) and TDM (Time Division Multiplexing) traffic and signaling analyzers and simulators, traffic generators; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely electrical power supplies, converters; converters for electric plugs; current converters; electric converters; electronic currency converters; apparatus for recording, transmission or reproduction of sound or images, namely, communications servers, computer servers, voice call servers, media gateway (MGW), Internet Protocol multimedia subsystem; magnetic recording media, namely, magnetic cards, blank magnetic data carriers, sound recording disks, namely, blank recordable optical discs; automatic vending machines; cash registers, calculators, data processors; computers; fire extinguishers