The DALI USB module is supplied by the DALI-line (current consumption ~6mA) as well as by USB (current consumption 10mA/40mA max). The DALI-line and the USB are galvanically isolated. The connection to the DALI-line ispolarity free and protected against overvoltage of up to 270Vac. Installation For the DALI-2 USB without included bus power supply an external DALI bus power supply is required. DALI-2 USB 30mA: the polarity of the output voltage is marked on the housing(DA+, DA-) DALI USB 30mA and DALI-2 USB 30mA Offers an integrated DALI bus power supply of 30mA, the power is supplied via USB. This power supply is switched off by default and can be activated in the DALI Cockpitconfiguration software. (A version with the bus power supply on by default is available on request.) Please note that the maximum bus supply must not exceed 250mA. If the external bus supply already delivers 250mA, the 30mA of the DALI USB should not be activated.
