User's Manual

Table Of Contents
Chapter 9: Setup Mode: Channel Configuration
XPress DR+ User Guide 87
WPA2/802.11i
The WPA2/802.11i mode complies with the Robust Secure Network specified in the IEEE
standard 802.11i. It enables the AES-based strong CCMP encryption.
Enter key prompts for the new passphrase. Maximum length is 63 characters; the
recommended minimum is 20 characters.
Set the Encryption type to minimum required security. The plus sign denotes that the
group (broadcast) encryption method is different from the pairwise (unicast) encryption.
For example, CCMP+TKIP => pairwise = CCMP, and group = TKIP.
Fixed or Automatic Data Rate
The XPress DR+W permits the control of the transmission rate. Select 0 to set a fixed
data rate, or select 1 to set an automatic fallback data rate. The default setting is 1 (auto).
TX Data rate 0=fixed, 1=auto fallback (1) ? _
Transmission Data Rate
If the above TX Data rate is set to fixed, the selected data rate is the XPress DR+W’s
fixed transmission rate. If the above TX Data rate is set to auto, the selected data rate is
the XPress DR+W’s maximum data rate. Lower data rates allow for larger distances.
They may also be required when communicating with older devices. The default setting is
11 Mbps.
TX Data rate 0=1, 1=2, 2=5.5, 3=11
4=18, 5=24, 6=36, 7=54 Mbps (0) ? _
Note: The XPress DR+W’s maximum data rate cannot be selected when TX Data rate is
set to auto fallback.
Enable Power Management
This allows the software to turn off the radio when expecting not to receive or transmit
soon. This feature reduces the power consumption by up to 170 mA. Enabling power
management increases the response time, because the radio needs to start up again.
The radio is enabled to synchronize and check for incoming messages (every 100 ms).
Note: This option is not available when the Topology is set to Adhoc.