Specifications

5-26 WS2000 Wireless Switch System Reference Guide
5.6.2 Antenna Settings
5.6.3 Access Port Properties
Use the options provided in this area to set the properties of the Access Port.
5.6.4 Advanced Properties
Channel
Selection
Mode
Click the Channel Selection Mode button to open a sub-screen where you can select the
modes by which channels are selected. The available options are User Selection, Uniform
Spreading, and Automatic Selection.
Selecting Automatic Selection from the sub-screen enables the Remap Channel button and
the This radio and All options. Select the appropriate options to remap the selected channel.
Internal/External
Antenna
Specify whether the Access Port has internal antenna or external antenna. Depending on the
antenna type selected certain options in the Radio Settings section may be disabled.
Antenna Diversity Use the drop-down menu to configure the Antenna Diversity settings for Access Ports that use
external antennas.
Full Diversity: Utilizes both antennas to provide antenna diversity.
Primary Only: Enables only the primary antenna.
Secondary Only: Enables only the secondary antenna.
NOTE: Antenna Diversity should only be enabled if the Access Port has two
matching external antennas.
no scan The AP does not listen to beacons
Dedicate this AP as Detector
AP
For every configured time interval, the AP scans the channels for Rogue APs in its
surroundings.
Perform On Channel Scan The AP listens for beacons on the configured channels only.
Dedicate this AP as a Full
Detector AP
For every configured time interval, the AP scans the channel for Rogue APs in its
surroundings. However, MUs cannot adopt themselves to this AP.
Support Short
Preamble
Check the Support Short Preamble check box to allow the Access Port to communicate with
the MUs using a short 56-bit preamble.
A preamble is the beginning part of a frame. The preamble comprises such elements as robust
carrier sensing, collision detection, equalizer training, timing recovery, and gain adjustment.
The administrator can choose between a long or short preamble for data-frame transmission
from the WLAN’s adopted Access Ports.
Use the long preamble setting (the default) for legacy wireless equipment that is not capable
of dealing with short preambles. Use the short preamble setting where legacy equipment is
not an issue and maximum throughput is desired, for example when streaming video or using
Voice-over-IP applications.