Patent ID: 6400103
Filing Date: 2002-06-04
Classification: H04L,H05B

Abstract:
A lighting controller for controlling at least one ballast driving a lighting device, the lighting controller comprising:an output signal line adapted to output an output signal satisfying a signaling protocol, the signaling protocol defining a control signal for controlling an amount of power provided to the lighting device by the ballast; a first input signal line adapted to receive a first input signal satisfying the signaling protocol; a second input signal line adapted to receive a second input signal satisfying the signaling protocol; a mode selector selecting among a plurality of modes, each mode determining which of the first input signal and the second input signal are conducted to the output signal line to control the ballast; an output port for the output signal line; an input port for each input signal line; a power bus for transferring power between each of the ports in the lighting controller; the output port including a first pair of power bus leads coupled to the power bus and the output signal line, the first pair of power bus leads including a power lead and a ground lead; and the input port including a second pair of power bus leads coupled to the power bus and one of the first input signal line and the second input signal line, the second pair of power bus leads including a power lead and a ground lead.