(2) When the bathroom is not occupied all doors are normally closed and unlocked. All switch indicators are not illuminated.
Upon entering the bathroom from one of the rooms the occupant presses the inside pushbutton switch to lock all doors.
All doors must be closed for locking to occur. Interior and exterior indicators will illuminate red to indicate bathroom is
occupied and doors are locked. To unlock doors and exit, occupant presses inside pushbutton again. All indicators will
extinguish and all doors will unlock. Depressing outside emergency pushbutton switches, located above or adjacent
to each door, will unlock all doors. Outside pushbutton, if used, must be pushed again to reset system to normal use.
When connected to a fire ...