Wireless technology has the benefits of supporting mobile computing and installation of networks in buildings or across right of ways that would otherwise be too expensive to lay cable. Wireless network standards are still evolving. Due to the lack of strong standards, wireless components may need to be purchased from the same vendor to insure proper operation. Wireless networks can be connected into wired networked and use traditional approaches to sharing bandwidth among wireless-connected devices. Wireless network technology is based on radio frequency or infrared transmission.
Infrared transmission is viable indoors across relatively small distances.
Radio frequency transmission trades speed against distance. The higher the speed the shorter the distance the signal will travel. Manufacturing environments with many electric motors or other EM producing devices may be poor locations for a wireless network. To select cable installers, rely upon recommendations from other customers and your key network vendors, such as a router or switch supplier. It is in their best interest that cabling be done correctly.