Introduction

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

Ethernet

802.11a

802.11b/g

Wireless

Wireless

 

Link/Activity

 

Link/Activity

Link/Activity

1-4

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Enterasys Networks RBT-4102 manual Component Description, Antennas, External Antenna Connectors, LED Indicators