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848 Airport Road, Walla Walla, Washington 99362 U.S.A.
Tel: +1 509.525.7660 / Fax: +1 509.525.7907
twigwirelesscontrols.com
3.0 hOw TO SETUP ThE TwIG SySTEM
Start the system setup at the TD200 controller. Otherwise you may waste time because the network
cannot be setup if the TD200 is not turned on. When powered on, the TD200 controller sends the radio
transmission signals and permits the appropriate TWIG units to join with it. The following sequence are the
steps to take for setup.
3.1 MAKE A fIElD MAP fOR wIRElESS COnTROl:
The first thing to do is get a field map. This will help you place the TD200 controller in the best place. Using the
map, determine the distances from the controller to each TWIG valve. Check the line-of-sight and avoid any
obstacles. Typically a TWIG-1 model will be needed at each valve. In some situations the multi-valve model can
be used if the valves are separated only by a short distance (50 feet or less). Keep within the allowed range
shown on the bar graphs in Section 7. Considering the crop and the elevation of the antenna, make a plan for
any repeaters that will be needed. The map will be useful later to write the TWIG ID number next to each valve.
3.1.1 TD200 RADIO COMMUnICATIOn UTIlIzES A STAR nETwORK.
The “star” network is a simple route of the radio signal. The sketch below shows how a TD200 controller
“star” network links to the TWIGs. Keep in mind that the radio can project in all directions at once, so very
complex signal routes can be developed. The TWIG communication is directly to the controller. If a TWIG
Repeater is used then the link distance can be extended.
TWIG
note
bEGIn yOUR SySTEM SETUP AT ThE TD200 COnTROllER.
AlwAyS MAKE A fIElD MAP bEfORE DOInG A COnTROl PlAn.
TD200 controller
Communication link
TWIG-link
TWIG-link
TWIG-link
star network
TWIG
note
ThE STAR ROUTInG IS
UTIlIzED bECAUSE IT IS
EASy TO SETUP AnD TO
TROUblEShOOT. TwO-
wAy COMMUnICATIOn
IS DIRECT bETwEEn
TwIG AnD TD200
Figure 3.1 Example of
communication for a star
(radio signal between
TD200 and TWIGs)
