Data concentrators, routers and hubs for local area networks (LAN), Information technology (IT) and Internet, IT, Internet, R&D, Data switches, fibre optic, for local area networks (LAN), Network cable assemblies, fibre optic, Routers, fibre optic, for local area network (LAN) or wide area network (WAN) communications, Data switches for corded local area networks (LAN), Computer network equipment, Fibre optics installation contractors, telecommunications, Building industry