CBU-A2D is powered with 230V, so you no longer need a separate 24V-DC power supply. The unit can do several things for you through profile change; First, it can generate a 0-10V or a Dali line, similar to the CBU-ASD, where a 12V-DC output is available if you work with 0-10V to which you can connect an auxiliary relay. Make sure to choose a relay with extinguishing diode across the coil.
Secondly, you can also provide 2 drivers with a 0-10V signal. There is then no relay output available.
You can of course also select a driver that can be controlled Tunable White via the two 0-10V outputs.
You can also choose to connect a push button with which you can control other actors.
CBU-A2D therefore has a number of profiles that come from CBU-ASD and CBU-ASR.