Fire Alarm System at Ft Bliss AFRC is currently inoperable and needs extensive repair. This afternoon, the electronic access controls to ALL Exit doors failed, causing all doors to lock down. No personnel can exit the building. The doors are controlled by the fire alarm system, therefore repairs are needed as soon as possible. All Exit doors are currently propped open, but this facility will have to be physically guarded until repairs can be complete, as the doors must remain propped open in order for personnel to exit the facility. There is not only a physical security threat to the facility with doors propped open, but this will also strain the HVAC system.