FIELD: lighting.
SUBSTANCE: invention relates to lighting control. Result is that a network controller can perform on / off control and adjust the brightness for the entire group of connected load devices by changing the bus voltage. Connected load devices that "understand" this feature or "want" to use it, will not be affected by it. To neutralise the effects of voltage drop, a calibration procedure is proposed. Calibration procedure first starts the connected load devices in calibration mode, and then initiates a number of predefined output signal level commands that allow the load devices to "build" an individual correction of the undesired voltage drop.
EFFECT: technical result is to provide a load management system in which a DC or AC power cable is used to control the on / off and brightness of connected load devices without introducing a significant hardware structure.
10 cl, 6 dwg, 1 tbl
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