In FIG. 17, in the LED lighting system 20, a break in the circuit appears and is detected between the driver DRV 361 and the OS 37, and another break in the circuit appears and a break is also detected in the circuit between the driver DRV 362 and the OS 37. As long as no break between the power source PS 10 and the input selector IS 35 is diagnosed, the MCC 38 sends a message instructing the IS 35 to connect to a different spare DRV,DRV 363 from plurality of the DRV available (361,362,363) and the LLS 401 fails to illuminate, LS 48 sent a message the MCC 38 and this send a message and will instruct the OS 37 to connect to a different spare LLS, LLS 402 from plurality LLS (401,402,403) creating a new pathway PPW 8:
In FIG. 17, the DRV 361 and DRV 362 become non-functional or defective, the next spare DRV 363 replaces the initially selected DRV 361, DRV 362 and LLS 401 become non-functional or defective, the next spare LLS 402 replaces the initially selected LLS 401 to ensure LED lighting system 20 good operation and creating a new PPW 8:
PS 10>IS 35>DRV 363>OS 37>LLS 402
FIG. 18 shows an example LED lighting system 20 in the topology 1, 3, 3 (1 PS 10×3 DRV 36 (361 and 362 and 363)×2 LLS 40 (401 and 402 and 403) commutation policy ending configuration LLS 403 connected to PS 10 through DRV 363.
