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t
848 Airport Road, Walla Walla, Washington 99362 U.S.A.
Tel: +1 509.525.7660 / Fax: +1 509.525.7907
twigwirelesscontrols.com
7.0 TEChnICAl SECTIOn (APPlICATIOn fACTORS)
The section provides some specific details about the Nelson wireless TWIG system technology.
7.1 EnGInEERInG IDEAS bEhInD ThE TwIG SySTEM:
Engineers at Nelson Irrigation Corporation look at things from the farm point of view and make the equip-
ment fit were it has to work. Here is an example of a field system.
TD200 ConTroller
TD200 controller includes proprietary Nelson high power radio. Capable of controlling
up to 100 TWIGs on valves. The TWIG network has two-way communication every
20 seconds and monitors battery and signal strength for each TWIG valve.
TWIGs on field valves. There are six TWIG choices available. These control one, two
or up to four valves independently. Antenna options are the standard low-profile
internal antennas or external Omni antennas.
Optional TWIG Repeaters can be used to extend the network radio signals.
Self organizing radio logic works to extend the signals if needed to reach longer
distances.
Accessories include TWIG Contacts, solar power kits and Omni antennas to work in
about any farm application.
TWIG fIelD valves
repeaTer
TWIG fIelD
valve
1
2
3
4
TWIG ConTaCTs
Components of nelson Wireless Controls
1
2
2
4
3
