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Controller
Hardware and Accessories Setup and Utility
Infrastructure
It is commonly accepted that rodents are active at up to a depth of 100-120 cm below the
ground surface. Therefore, cables should be laid beneath this depth, or alternatively, a cable
can be laid inside a pipe that is resistant to rodents. All the surface cables should be protected
by sleeves of 50 mm pipes.
In most cases, the cable is laid alongside the water pipe, in the same conduit. In this case
there is a certain advantage that the cable has the same sand padding that envelops the
water pipe. Yet it should be taken into consideration that water pipes by their very nature tend
to burst from time to time, and then it is likely that during the digging required to repair the pipe
the cable may be damaged, and you should be equipped with a suitable stock of material to
repair the cable. At least 150 cm. of surplus cable should be left at each connection.
Lightning Protection for three-wire Cable (LP1)
Lightning protection LP1 will be installed adjacent to the controller, and will serve two
objectives: the cable that continues outside is often rigid and wide, and consequently is
not easy to attach to the controller box. The section between the device and the controller
can be continued with a flexible cable. The second objective is, of course, the issue of
protection.
Diagram of LP1 connection:
Appendix 1: Cable Remote Terminal Units (CRTU)
RTU
RTU
Water Pipe
120 cm
C2000-15 RTU
Adapter Card
First Remote
Unit