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• Respect the connection polarity of each device. A wrong connection may seriously damage the product.
• For elements externally powered at 110 /230 Vac, for the communications, it is only necessary to connect the poles "A"
and "B" of the bus.
• For elements externally powered at 110/230 Vac, respect the connection polarity. A wrong grounding may produce
electric shocks.
• According to the current local and national regulations, it is mandatory to add a switch (or other element to disconnect
the system) to the external supply wiring so that a constant separation between poles is guaranteed. The system will
restart automatically if the supply is eventually turned off. Use an independent circuit from the controlled system
for the power supply.
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