The Access Point connects to a router via the wired network. However, it can also be an integral part of a router. APs support the connection of multiple wireless devices over a single wired connection.
Access Point s are conceptually different from hotspots. A hotspot is a location where wireless access is available.
Modern Access Points have built-in encryption. The WPA and WPA2 encryption schemes are considered secure if a sufficiently secure password or passphrase is used.
Differences between AP models
Access Point models differ technically primarily in their possible data rate and in MIMO technology (Multiple Input Multiple Output) with possibly several transmitting and receiving antennas.
Tests of current devices can be found in the trade press. The setup works via a web page with the address of the individual Access Points after it has been connected with the LAN cable.
Do you have any more questions?