Edimax PS-1208UWg User Manual page 60

Default Key – Select one of the four keys to encrypt your data. Only the key
you select in the "Default key" will take effect.
Key 1 – Key 4 – The WEP keys are used to encrypt data transmitted within the
wireless network. Fill the text box by following the rules below.
64-bit WEP: input 10-digit Hex values (in the "A-F", "a-f" and "0-9" range) or
5-digit ASCII characters as the encryption keys. For example: "0123456aef" or
"Guest".
128-bit WEP: input 26-digit Hex values (in the "A-F", "a-f" and "0-9" range) or
10-digit ASCII characters as the encryption keys. For example:
"01234567890123456789abcdef" or "administrator".
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