Bridging Large Distances How to Integrate Wireless-Based Remote Components into your Network

Author / Editor: Jörg Brasas / Dr. Jörg Kempf

In water management, it is often necessary to integrate into the central network signals from distant system components or remote stations. Many users, therefore, look for suitable wireless solutions to avoid the high cost associated with laying cables.

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Representation of a typical remote station in water management.
Representation of a typical remote station in water management.
(Picture: Phoenix Contact)

Particularly in water management, power supply, and the process industry, remote stations are distributed across vast areas and, therefore, often hard to reach in terms of data. Modern communication methods facilitate the control and maintenance of the stations. For example, if license-free wireless technology is used, one can do without the expensive installation of data lines. But most of the time users are not aware of the technical concept that is best suited to their respective tasks. Their requirements range from high reliability and data security to achieving a great bridgeable distance and the license-free use of technology, as well as ensuring an easy start-up.

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With Radioline, Phoenix Contact has for more than two years offered a reliable wireless system explicitly developed for industry, in the range of 2.4 GHz and 900 MHz, which has proved itself in practice. The solution, based on Trusted Wireless 2.0 technology, has been specifically developed for spatially extensive plants and systems. With the module, which operates in the license-free 2.4 GHz frequency band, the portfolio includes a wireless component that can be deployed globally.

Adjustable data rates of the wireless interfaces and a maximum transmission power of 100 mW make it possible to overcome distances of up to five kilo-meters in a clear line of sight. The 900 MHz variant has been designed for limited use on the North and South American continents. With a maximum transmission power of 1 mW and a clear line of sight, however, distances of up to 32 kilometers can be bridged.

Particularly in Germany and Europe, remote stations are frequently integrated into the network using the 2.4 GHz wireless module. But in some cases, this solution is limited when it comes to signal penetration. Since the stations are not in a direct line of sight, the users need a wireless system that can penetrate obstacles better and overcome greater distances. In Europe, the license-free 868 MHz frequency band can be used for this purpose.

The new Radioline module operating in the 868 MHz frequency band represents an optimal solution for distant remote stations. Learn more on the next page ...

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