Enterasys Networks 802.11 Network Card User Manual


 
Infrastructure Network
3-4
Noise levels in the radio frequencies can reduce the coverage area. Such noise can be
generated by microwave ovens and elevator motors. Increasing the AP Density will also
reduce the coverage area of a single AP.
A RoamAbout Access Point can support up to 250 users within its coverage area. The
RoamAbout R2 supports up to 250 users per slot. However, this number can be
significantly reduced by various factors, such as noise or obstructions in the coverage area,
and the network utilization by each client. If your desired coverage area is larger or the
number of users is greater, you need to install multiple APs.
Be aware of potential hidden station problems, as described in “Hidden Station” on page
2-10. If possible, arrange the coverage area to minimize or prevent any two clients from
being within range of the AP, but out of range from each other.
Selecting the Location for a Single AP
The AP should be placed as close as possible to the center of the planned coverage area. If
it is necessary to install the AP in an obstructed location, use the optional Range Extender
antenna to extend the coverage area of the AP. The Range Extender antenna should also be
used if, for security reasons, you need to install the AP in a closed location, such as a closet.
Before mounting the AP, review the hardware requirements described in the installation
documentation that came with the RoamAbout AP.
For best placement, configure the AP and a client and use the procedure in the “Optimizing
RoamAbout AP Placement” on page 6-5 before permanently mounting the AP.