An access control system is provided for controlling access between a secured side and a non-secured side of an access control point. A reader module is disposed on the secured side of the access control point for receiving authentication data from an individual. A controller unit is disposed on the non-secured side of the access control point, and has a housing that encloses an access control panel and a request-to-exit motion sensor. The access control panel is in communication with the reader module, an electronic lock mechanism, and the request-to-exit motion sensor. In response to receiving a data signal from the reader, the access control panel determines whether or not to unlock the lock. When it is determined that the lock should be unlocked, the access control panel provides a signal to the electronic lock for switching the lock from a secured condition to a released condition.