D-Link DCS-5220 - Wireless Pan/Tilt Internet Camera Network User Manual page 27

Section  - Configuration
Auth mode:
Key length:
Key format:
Key index:
Pre-shared key:
D-Link DCS-50 User Manual
If the encryption type selected is WEP from the Security drop-down list, choose one of the authorization modes:
Open - communicates the key across the network.
Shared – allows communication only with other devices with identical WEP settings.
Select the key length, either 64 bits or 128 bits.
Select an ASCII or HEX (hexadecimal) key format.
You can create up to  different security keys.
The Key allows the camera to connect to other devices by using WPA-PSK encryption. Pre-shared key must be -
characters or  hex characters.