Zhone zNID-GPON-2402 Configuration Manual page 118

Configuration
WPA-PSK
WPA-PSK (WiFi Protected Access – Pre-Shared Key) is basically WPA for
home and small office/home office (SOHO) environments. WPA-PSK uses
the same strong TKIP+AES encryption which is used for WPA, per-packet
key construction, and key management that WPA provides in the enterprise
environment. However unlike WPA which uses a RADIUS server, WPA-PSK
uses a password (WPA/WAPI passphrase) which is entered manually. A group
re-key interval time is also required.
Figure 86: Wireless security with WPA-PSK network authentication
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zNID 24xx Series Configuration Guide