User's Manual

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WIRELESS NETWORK DESIGN
Centralized (Star) Topology
Hardware Installation Guide 2-3
Figure 2-2 Peer-to-Peer Topology
In peer-to-peer topology, since all nodes need to talk to each
other, the range is dependent on the type of antennas used and
the local terrain. Longer ranges can be achieved by using
directional antennas with power splitters to connect to all sites.
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In a Star topology, there is one radio at a central location
designated as a Base Station or Star Base, and several remotes
designated as Remote Stations or Star Remotes. The Star Base acts
as a switching device. The Star Remotes communicate with each
other through the Star Base.
A DataMetro II wireless network with centralized topology can
connect up to 127 wireless nodes. The MAC protocol used is a
combination of random and polling MAC protocols, with
positive Data Link acknowledgment that improves the reliability
of frame delivery.
Figure 2-3 on page 2-4 shows DataMetro II wireless router nodes
in a star topology.
DATAMETRO II DATAMETRO II
Ethernet Ethernet
DATAMETRO II
Ethernet