Electrical power supplies for electronic equipment; converters; electronic filters, namely RF filters, SAW filters, UHF filters, VHF filters and microwave filters; electronic components of passive semi-conductors or opto-electronic kind, namely integrated circuits; cards, namely, electronic boards; electronic modules; passive components of scientific, electric and electronic apparatus and instruments, namely, capacitors, resistors, potentiometers, quartz crystals for use in regulating electrical current in a circuit, inductances, electrical transformers; electron-mechanic and coupling components, namely, relay switches, electric switches, pushbutton switches, key switches, computer keyboards, electrical connectors; fiber optic cables; computer and video monitors; alphanumeric display devices, namely LCD and plasma displays; visualization screens; electric and electronic measuring apparatus and instruments, namely, voltmeters, ammeters, ohmmeters, multimeters, frequency meters, counters, pickups, analyzers; control or recording systems, namely, digital video and multimedia recorders and servers and parts therefor; audio, video and data event recorders; information devices, namely, electronic displays for information purpose, computer peripherals, namely input/output and dialog peripherals; equipment for the realization and the management of local networks or the interconnection with public or private networks, namely, digital network adapters, routers and switches; test units; control units; analyzer units; emulator units; quality simulators for use in telecommunications systems; apparatus for telecommunications, radio, radar and optical fiber transmissions, namely, professional radio communication transmitters and receivers of digital data, radars, and optical fiber transmit/receive equipment, and component parts therefor, namely, digital filtering software, supervision software, protective covers, boxes sold as a unit, and excluding consumer telecommunication apparatus or consumer radio apparatus; lasers not for medical use; scientific, electric and electronic apparatus and instruments, namely, telecom protocol and quality of service analyzers, atomic clocks, synchronization equipment