Introduction
1-4
Component Description
Antennas
The access point includes integrated diversity antennas for wireless communications. A
diversity antenna system uses two identical antennas to receive and transmit signals,
helping to avoid multipath fading effects. When receiving, the access point checks both
antennas and selects the one with the strongest signal. When transmitting, it will continue
to use the antenna previously selected for receiving. The access point never transmits
from both antennas at the same time.
The antennas transmit the outgoing signal as a toroidal sphere (doughnut shaped), with
the coverage extending most in a direction perpendicular to the antenna. The antenna
should be adjusted to an angle that provides the appropriate coverage for the service
area. For further information, refer to “Position the Antennas” on
page 2-3.
External Antenna Connectors
The access point supports external antenna connections for both the 2.4 GHz and 5 GHz
radios. These antennas offer a variety of options for extending the radio range and
shaping the coverage area. For a list of external antennas, their model type and gain
refer to “External Antennas” on page C-8.
For information on the external antennas available, refer to the RoamAbout RBT-4102 /
RBT-1602 Wireless Access Point Antenna Site Preparation and Installation Guide. This
document is available for download from
http://www.enterasys.com/products/wireless.
LED Indicators
The access point includes four status LED
indicators, as described in the following figure
and table.
Power
802.11a
Wireless
Link/Activity
Ethernet
Link/Activity
802.11b/g
Wireless
Link/Activity
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