Nokia RoofTop™ Wireless Routing Installation Guide 1CHAPTER 1 System Overview1.1 IntroductionThis chapter provides:• A basic understanding of how a wireless router system functions• How wireless systems self-configureWireless router networks bypass the wired local loop with fast “always-on” wireless Internet access.The Nokia AIR™ Operating System (OS) provides intelligence, securityand ease of use to make wireless networks practical, simple to deploy, andcost effective. Wireless Internet or intranet access across a network iscompletely transparent to the end user.The Nokia RoofTop™ Wireless Routers, Models R242/242A, are bothwireless Internet access devices and IP routers. The wireless router unitsoperate in a mesh network where line of sight access is required to onlyone other wireless router.