Abstract: A frame for an electromechanical prison door lock. The frame includes multiple arrays of indicia that indicate which apertures match the locations of mounting holes in at least two locks each having a different mounting configuration. A cutout formed in a face and side member of the frame form a pocket in which one of the locks is mounted. A lock cover plate is removably mounted to the frame to cover the cutout in the face and includes an opening for a lock cylinder. A latch cover plate is carried by the lock cover plate and is positioned to cover the cutout in the side member. Cutouts are provided in the latch cover plate for a lock latch bolt and a latching roller. The frame may be installed in an opening in a cell or passage wall prior to selection of the lock type.

Abstract: A frame mount is provided for an electromechanical prison door lock. The frame includes multiple arrays of mounting apertures which allow fasteners to be extended through selected apertures which match the locations of mounting holes in the lock. A cutout formed in a face and side member of the frame form a pocket in which the lock is mounted. A lock cover plate is removably mounted to the frame to cover the cutout in the face and includes an opening for the lock cylinder. A latch cover plate is carried by the lock cover plate and is positioned to cover the cutout in the side member. Cutouts are provided in the latch cover plate for the lock latch bolt and latching roller. The frame may be installed in an opening in a cell or passage wall prior to selection of the lock type, thereby reducing construction delays that may be experienced with conventional frames that are fabricated only after the lock type has been selected.