ONC is a supplementary device of OS-NET solution. This device contains all functionalities of an ONS, but without occupancy sensing capability. It can be used to provide associated or separate control to the connected luminaires or lighting circuits in the same area by receiving the occupancy signal transmitted from the ONS of the same group. The device not only controls the connected lighting in the programmed mode when any OS-NET sensor of the group detects the presence of an occupant/vehicle, but also acts as a network node to broadcast OS-NET commands for group control wirelessly. Each controller can be assigned to be member of maximum 4 groups for coordinated control. All control settings, including burn-in duration, delay time, ambient light level, grouping/regrouping, dimming control mode, can be configured in individual or group basis via a 2-way handheld remote programmer from the floor.