Apparatus for transmission of communication; Coaxial cables; Connections for electric lines; Data processing apparatus; Data processing equipment, namely, couplers; Electrical connectors; Electronic and optical communications instruments and components, namely, optical data links; Electronic and optical communications instruments and components, namely, optical transceivers; Fiber optic cables; Infrared detectors; Integrated circuits; Lasers, not for medical purposes; Light emitting diodes (LEDs); Optical fibers; Optical inspection apparatus; Semi-conductors; Semiconductor devices; Signal splitters for electronic apparatus; Switchboards; Transponders