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Chapter 1
Introduction
Note:The RBT-1002C-EU, although listed in this document, is not
available until March 2008.
Aunque el modelo RBT-1002C-EU está especificado en este
documento, éste no estará disponible sino hasta marzo de 2008.
The RoamAbout RBT-1002, RBT-1002C, RBT-1002C-EU, and
the RBT-1002-EU Wireless Access Points are IEEE 802.11a/g
access points that provide transparent, wireless high-speed data
communications between a wired LAN and fixed, portable or
mobile devices equipped with an 802.11a, 802.11b or 802.11g
wireless adapter.
This solution offers fast, reliable wireless connectivity with
considerable cost savings over wired LANs (which include
long-term maintenance overhead for cabling). Using 802.11a and
802.11g technology, this access point can easily replace a
10 Mbps Ethernet connection or seamlessly integrate into a
10/100 Mbps Ethernet LAN.
Radio Characteristics – The IEEE 802.11a/g standard uses a
radio modulation technique known as Orthogonal Frequency
Division Multiplexing (OFDM), and a shared collision domain
(CSMA/CA). It operates at the 5 GHz Unlicensed National
Information Infrastructure (UNII) band for connections to 802.11a
clients, and at 2.4 GHz for connections to 802.11g clients.
IEEE 802.11g includes backward compatibility with the IEEE
802.11b standard. IEEE 802.11b also operates at 2.4 GHz, but
uses Direct Sequence Spread Spectrum (DSSS) and