MOUNTING ¥ GF-BC, GF-VBC GF-BC, GF-VBC GF-BC,GF-VBC Mounting rail for GFBC, GF-VBC & GF-4Z: W-DIN11 available from Aiphone Power switch Power on LED (green) Screw (x2) ON OFF Mounting rail Power switch HOW TO RESET BREAKER (Power switch) When system malfunctions, check the wiring. Check the fuse of power supply. Turn off the power switch of GF-BC & GF-VBC and turn on after 4 seconds. Resets the whole system.