System Reset Module
This is where a module is specifically used to provide a system reset function. By its very nature it should be located somewhere where it is not normally accessible by a user as it is expected only to be used very infrequently. Two buttons of a module are used for its operation. A module called a Dual Button Interface (DBI) is typically used for this operation. However a DRB or QBI module may be used if required.
Should the system fail then it would be expected that the other recovery mechanisms would take over i.e. Defibrillator or System Watchdog. However if these also fail or do not respond quickly enough for the users liking, then the user would press button 1 on the System reset Module. It would cause the system power supplies to reset and bring up all the modules in their reflex programmed modes.