The DALI port of control CUE-dali-d does not provide DALI power supply. This power supply must be ensured by external DALI power source. DALIpwr is special power supply for DALI bus. Output current for supplying units can be up to 240mA. Presence of current, ongoing communication on DALI bus and short-circuit or overload are indicated on the front panel. DALI units are equipped with a diode bridge so that devices can be wired regardless of the cable polarity.