How is AP501 protected against high-voltage shock attacks?
Some digital door locks can be vulnerable to high-voltage shocks if someone made a special machine to instantly generate and apply about 15,000 volts of electricity to the 9V temporary power terminal. Such a shock could burn the PCB (printed circuit board) inside thus disabling the lock. The AP501 has a bypass circuitry that protects the PCB in case of such a high-voltage attack so that the lock remains locked.
