1-1
CHAPTER 1
General Description
The IRRInet-XL is a field irrigation controller designed for many irrigation applications,
such as: turf, landscaping, highway medians, and agricultural. The RTU can operate as
a smart stand-alone controller, or as part of a larger distributed irrigation system that
communicates by radio(s) or \ and wire line(s) connection(s).
The IRRInet-XL is a modular unit made up of 3 I/O plug-in modules (installed in a 3-slot
I/O card cage) CPU Module, Power Supply Module, radio(s) and AC Power Supply.
Figure 1-1 shows a typical RTU setup.
The RTU can be powered by a battery or solar panel. This option is useful where AC
power is not available. For DC power connections see “Electrical Connections for
External DC Power Supply” in the Installation section.
1.1 IRRInet-XL - RTU Wall Mount and Housing Options
The IRRInet-XL RTU is available in two basic housing styles and one wall-mount chassis
style.
Figure 1-1 shows an RTU on a 3-slot metal chassis, suitable for direct wall mounting with
no housing enclosure of any kind.
High Power Radio
Low Power Radio
CMU Module
Backup Battery 5Ah
3-Slot Metal Chassis
I/O
Modules
CPU
Module
Power Supply
Module (Less)
Main Power Supply
I/O-AC Transformer
GND Strip
Figure 1-1 3-Slot Chassis Wall Mount Style
Figure 1-2 NEMA4X Plastic Housing Style – Mobile Radios and Figure 1-3 NEMA4X
Plastic Housing Style – Portable Radio shows RTUs that are supplied with the 3 slot
8 Ampere
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