DALI occupancy detector for ceiling mounting offers both presence and absence control with daylight harvesting. The DALI occupancy detector can automatically set up ballasts in either broadcast or group functions and boasts test and corridor modes that can be programmed and controlled by a remote control. A complete DALI network solution is provided with just 4 elements: (1) DALI occupancy detector, (2) DALI remote control, (3) DALI power supply unit and (4) DALI multi-purpose connection box. Broadcast, Group and Scene Selections One DALI occupancy detector with one DALI power supply unit (NL5712) is capable of controlling up to 64 ballasts with 16 groups (15 groups + 1 group dedicated to broadcast) with 16 scenes each.