Method of retrofitting irrigation control systems
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
Sep 27, 1996
filing date -
Sep 27, 1996
priority date (Note) -
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Abstract
A method of retrofitting existing irrigation systems is disclosed. An irrigation system having a control circuit of water supply and a plurality of valve assemblies including communication with the water supply is provided. The control circuit has a centralized controller, a plurality of independent valve control lines extending between the controller and each of the valve assemblies and a return line extending from each of the valve assemblies to the controller. According to the method, a terminal strip is installed within the controller and connects each of the valve control lines together, wherein each valve control line receives the same signal from the controller. An encoder is installed within the controller and a decoder is installed in series with each valve assembly.
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