Edimax Technology EW-7228APn - Manual (Page 54)

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Key Length There are two types of WEP key length:
64-bit and 128-bit. Using “128-bit” is safer
than “64-bit”, but will reduce some data
transfer performance.
Key Format There are two types of key format: ASCII
and Hex. When you select a key format, the
number of characters of the key will be
displayed. For example, if you select a
“64-bit” key length, and “Hex” as the key
format, you’ll see the message “Hex (10
characters)” to the right, which means the
length of the WEP key is 10 characters.
Default Tx Key You can set up to four sets of WEP keys, and
you can decide which key is used the
default. If you don’t know which one you
should use, select “Key 1”.
Encryption Key
1 to 4 Input WEP key characters here, the number
of characters must be the same as the
number displayed in the “Key Format” field.
If you select the “ASCII” key format, you can
use any alphanumerical characters (0-9, a-z,
and A-Z). If you select “Hex” as the key
format, you can use the characters 0-9, a-f,
and A-F. You must enter at least one
encryption key here, and if you entered
multiple WEP keys, they should not be same
as each other.