Installations for controlling the access of secure enclosures.

摘要

The invention relates to an installation suitable for controlling the electrical locks (1, 2) of a sealed room, for which each lock comprises a contact and an electronic circuit designed to close said contact for the purpose of closing the lock only when it receives a coded signal identified as correct. This installation comprises control pushbuttons (10), each comprising a contact (P) and an electronic circuit (R) designed to transmit coded positive-response signals when it receives coded interrogation signals identified as correct and when said contact is closed, and a central unit (16) capable of managing the various coded interrogation, positive-response and closing-command signals, said unit being connected to the locks by means of a reduced number of wires. <IMAGE>