ZyXEL Communications P-334WT Support Notes page 189

Setting up the Access Point
Most access points and clients have the ability to hold up to 4 WEP keys simultaneously. You need to specify one of the 4 keys
as default Key for data encryption. To set up the Access Point, you will need to set the one of the following parameters:
64-bit WEP key (secret key) with 5 characters
64-bit WEP key (secret key) with 10 hexadecimal digits
128-bit WEP key (secret key) with 13 characters
128-bit WEP key (secret key) with 26 hexadecimal digits
You can set up the Access Point by SMT or Web configurator