A Wireless Access Point (WAP) is a system that allows wireless clients to access the rest of the network or the Internet.
Your WAP will operate in BSS mode. A WAP will have at least one wireless network interface to provide a connection point for your wireless clients, and one wired network interface that connects to the rest of your network. Your WAP will act as a bridge or gateway between the wireless clients, and the wired intranet or Internet.