Patent ID: 7436675

Claim:
A flexible cable for a lighting system having a power supply and at least one luminaire, the power supply including a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal, and the at least one luminaire coupled to a lamp driver, the cable comprising: a first leg of wires for carrying the second signal having a first wire electrically connecting a loop output of the power supply to a loop input of the lamp driver and a second wire electrically connecting a loop output of the lamp driver to a loop return of the power supply; and a second leg of wires electrically connected to a ground of the power supply and a ground of the lamp driver wherein, the first wire and the second wire are insulated from one another, wherein the flexible cable further comprising a modular connector, and the second signal has substantially constant current and a second frequency of the second signal distinctly higher than the first frequency of the first signal.