Abstract: A plurality of doors in a structure, wherein each door comprises a locking apparatus and an access arrangement. The access arrangement comprises a housing unit and a plurality of alternatively interchangeable inserts configured to be inserted into said housing unit. The inserts are also configured to permit access through a corresponding door. The inserts are designed to have different access configurations, such as a cylinder lock or an electronic code lock. Differently configured inserts can be interchangeably inserted into the housing to change the access configuration at a corresponding door without having to change the housing.

Abstract: An improved emergency door with an emergency door opening system having a control box comprising a housing with a cylinder lock, an emergency door opening button, and an audio alarm sensor to provide an optimized user-friendly and customer-friendly arrangement of optical display elements that can be easily assembled with the emergency door. This is achieved by surrounding the emergency door opening button with a display module which can be closed by a covering frame that is provided with integrated safety glass.

Abstract: A plurality of doors in a structure, each said door comprising: locking apparatus; said locking apparatus having at least a first position for unlocking said door, and a second position for locking said door; an access arrangement; and said access arrangement comprising: a housing unit; a plurality of alternatively interchangeable inserts; said plurality of alternatively interchangeable inserts each comprising a first part; said plurality of inserts each being configured to permit access through its corresponding door upon an authorized manifestation; said housing unit having an insertion opening; said insertion opening being configured and dimensioned to interchangeably receive said first part of each and every one of said plurality of inserts; said insertion opening being configured to surround a substantial portion of said first part; said insertion opening being configured to receive solely one insert at a time; said plurality of inserts comprising at least a first insert and a second insert; said first i