Rehau NEA SMART 2.0 End User Manual page 9

Coupling Relais 24 V / 230 V
The coupling relay is used to transfer 24 V AC or
230 V AC switching signals of a heat or cold generator
or a superordinate building management system to the
digital inputs of the NEA SMART 2.0 control system.
Switching Relais 24 V / 230 V
The switching relay is used to connect to triac outputs
or relay outputs of the NEA SMART 2.0 24 V / 230 V
control system and to control external devices, addi-
tional actuators or to forward signals to other building
technology units.
NEA SMART 2.0 Bus cable (10 / 50 m bundle)
The NEA SMART 2.0 Bus cable can be used to wire the
system bus (SYSBUS) and zone bus (ZOBUS) of the
NEA SMART 2.0 control system.
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