Patent ID: 8264172

Claim:
A method of assigning a status to a lighting device of a plurality of lighting devices over a line, the method comprising: a) receiving, by a first lighting device of a plurality of lighting devices connected via a line used for providing intensity to the plurality of lighting devices, a signal over the line providing intensity, the signal comprising a duty cycle within a time interval, the duty cycle comprising a plurality of portions, each of the plurality of portions comprising a duration of the duty cycle; b) detecting, by the first lighting device, an instruction identified by at least a first portion of the plurality of portions of the duty cycle, the instruction identifying a status of one of a master or a slave for the first lighting device; c) assigning, by the first lighting device, the status of the first lighting device to one of the master or the slave in response to the detecting of the instruction; and d) emitting, by the first lighting device, light having intensity identified by at least the first portion of the duty cycle.