The AFO5100 is an advanced‚ multi-purpose module that provides an interface between powered field-level input contact devices (such as elevator buttons) and output devices (such as override mechanisms) to the advanced central controller (AC5100‚ AC5102 or AC5200). It is designed for use in elevators that are integrated within an access control environment. A single AFO5100 can provide access control for up to 16 floors and multiple AFO5100 modules can be combined in an elevator system to provide access control for all floors. The fire override mechanism allows floors to be made automatically accessible during an emergency situation‚ a critical feature for sites where legislation requires strict emergency responses.