| 摘要 |
The aim of the invention is to improve a door surveillance lock plate (4) in such a way that even the retro-installation of lock surveillance functions to the existing basic construction of the lock plate (4) can be carried out economically, simply and in accordance with individual customer wishes. To this end, a separate security module (1) is created. Said separate security module (1) interacts with a latch and/or bolt located on the element and is fixed to a lock plate (4) having inlets (26) for the bolt or the latch in a functionally independent manner. An alarm triggering mechanism and optionally, a position sensor for the element and/or a lock sensor for the latch and/or bolt are integrated into the security module (1). |
