D-Link DAP-2590 - AirPremier N Dual Band PoE Access Point User Manual page 16

Section  - Configuration
Channel Width: Allows selection of the channel width you would like to operate in. 20 MHz and Auto 20/40 MHz allow both 802.11n
and non-802.11n wireless devices on your network when the wireless mode is Mixed 802.11 b/g/n in 2.4� and Mixed
802.11 a/n in 5�. When the channel width is set to Auto 20/40 MHz, then 802.11n wireless devices are allowed to
transmit data using 40 MHz.
Authentication:
Select Open System to communicate the key across the network.
Select Shared Key to limit communication to only those devices that share the same WEP settings. If multi-SSID is
enabled, this option is not available.
Select WPA-Personal to secure your network using a password and dynamic key changes. No RADIUS server is
required.
Select WPA-Enterprise to secure your network with the inclusion of a RADIUS server.
Select 802.1X if your network is using port-based Network Access Control.
For more information about the different types of Authentication offered on the DAP-2590 and the respective settings
of each, please go to the first page of the "Authentication" explanations, which begins on page 23.
D-Link DAP-590 User Manual 1