User's Manual

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rate. When the communications quality drops below a certain level, the Card will
automatically switch to a lower data rate. The Transmission at a lower data speed is usually
more reliable. However, when the communication quality improves again, the 802.11b Wireless
LAN PCI Card will gradually increase the data rate again, until it has reached the highest
available transmit rate.
WEP
To prevent unauthorized wireless stations from accessing data transmitted over the network, the
WLAN Utility offers highly secure data encryption, known as WEP, making your data
transmission over air more secure. To activate the WEP Encryption, check the WEP Enabled
check box. An Encryption window will then pop up. The instructions are as follows:
 Pull down the Encryption (WEP) menu and select either 64bit or 128bit encryption
method.
 Specify the encryption keys. There are two methods to set the WEP keys, as described
below:
Create Keys with PassPhrase
To create encryption keys by using a pass-phrase, click the Create Key with PassPhrase
check box and type a character string in the Passphrase field. As you type, the utility uses
an algorithm to generate 4 keys automatically. Select either the 64bit or 128bit encryption
first, and type a string in the Create Key with Passphrase field. Select one key from the 4
WEP keys and click on OK button. Then click on the Apply button on the Configuration
tab to make the setting take effect.
Warning: When Create Key with Passphrase is enabled, the wireless device’s Key with
PassPhrase must match the Key with PassPharse used by the access point with which
wireless device is planning to communicate.