Component Description - Enterasys RoamAbout RBT-4102 Installation Manual

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 appropiate coverage for
the service area. For further information, see "Positioning the Antennas" on page
2-4.
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 coverge area. For a list of external antennas, their model
type and gain refer to "External Antennas" on page C-7.
For information on the external antennas available, refer to the following document
on the Enterasys Web site:
http://www.enterasys.com/support/manuals/n-s.html#R
LED Indicators
The access point includes four status LED
indicators, as described in the following
figure and table.
LED Status
Power On Green
Flashing Green
On Amber
Flashing Amber
(Prolonged)
1-4
Power
Description
Indicates that the system is working normally
Indicates -
• running a self-test
• loading software program
Indicates a CPU or system failure
Indicates system errors
802.11a
Ethernet
Wireless
Link/Activity
Link/Activity
802.11b/g
Wireless
Link/Activity