Motorola PTP 500 User's Guide download pdf (Page 43)

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PTP 300 and PTP 500 Series User Guide Overview

phn-1115_006v000

Sep 2010

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Benefit of the chosen bands

The products operate in bands that offer the dual benefits of high data throughput and

good radio propagation characteristics. The wide band of spectrum available is

subdivided into several channels such that multiple systems can operate in the vicinity

without causing interference to one another.

Similarity to 802.11a devices

The products are not 802.11a devices. Although similar, they use different encoding

and radio transmission systems from 802.11a. In areas where 802.11a systems are

operating, the products will detect the 802.11a radio signals and choose a clear

channel away from any interference.

Avoiding interference from nearby devices

At initialization, the products monitor the available frequency channels to find a

channel that is clear of interference. In operation, the products continuously monitor

the spectrum to ensure it is operating on the cleanest channel.

Typical deployment

The PTP 300 or PTP 500 Series Bridge consists of an identical pair of units deployed

one at each end of the link. The radio link operates on a single frequency channel in

each direction using Time Division Duplex (TDD). One unit is deployed as a master and

the other as a slave. The master unit takes responsibility for controlling the link in

both directions.

The Bridge is aimed at a wide range of applications. An example application is an

enterprise that has a requirement to connect together the Local Area Network (LAN)

of two or more buildings as shown in Figure 1-1.

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Motorola PTP 500 User's Guide Page 43

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