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Introduction
1-3
System Description
The BreezeNET DS.11 wireless Base Unit (BU-DS.11) and Remote Bridge (RB-
DS.11) are designed to provide long-range point-to-multipoint links for outdoor
applications. The products use direct sequence spread spectrum radio technology
operating at the frequency range of 2.4 – 2.4835 GHz, a part of the FCC's
unlicensed Industrial, Scientific and Medical (ISM) band. Data is transmitted at
rates of up to 11 Mbps, providing network users with full 10BaseT Ethernet
speeds.
Functional Description
The BreezeNET BU-DS.11 and RB-DS.11 can be used as high-speed connections
between two or more remote networks.
Mail
Server
Server
Central Network
Remote Network 3
Remote Network 2
Remote Network 1
ServerServer
RB-DS.11
1
RB-DS.11
2
BU-DS.11
Base Unit
RB-DS.11
3
File
Server
Figure
1-1: BreezeNET DS.11 Point-to-Multipoint Application
BU-DS.11 Wireless Base Unit
The BU-DS.11 is an IEEE 802.11b compliant base station that connects one or
more remote sites to a central server or Internet connection. In a point-to-multi-
point configuration the BU-DS.11 is the central unit while in point-to-point
configurations it should be installed at one end of the link.
The BU-DS.11 is available in two options: The BU-DS.11 and the BU-DS.11D.
The BU-DS.11 is the basic unit, equipped with an antenna integrated into the front
cover of the outdoor unit.
The BU-DS.11D doesn’t have an integral antenna and is equipped with a connector
(on the outdoor unit) for an external antenna (not included with the unit).
Refer to Antennas for Outdoor Applications on page 2-6 and Available Antennas on
page 2-7 for information on how to select an appropriate external antenna.