The Ethernet is ideal for LAN, but suitable for both wireless LAN and WAN. Supporting data processing, extended connectivity and IT communication, wireless Ethernet switches can be adopted for telecommunications and power control facilities. The powerful capabilities of industrial wireless Ethernet, as opposed to home-based Ethernet, are fault monitoring, public address, IP legacy, extended point-to-point communication and connection to even difficult-to-access areas. Ad hoc industrial packages with wireless Ethernet are VOIP PBX and VMS, which can deliver exhaustive industrial applications with voice features as well as digitalisation. Facilitating power control, it can be utilised for energy saving, railway signalling, conferencing, information systems and workability in toughest environments.