Telephone-type keypad that allows the door to be opened by entering a previously programmed code of up to 6 digits. Device that can be used in centralized access control systems "MDS" and / or "AC Plus". The centralized access control systems are made up of a hardware part: control panels, readers, concierge, decoders, etc. and a software part that allows the installation to be configured and managed. Restricts access to certain private areas of a facility (office, warehouse, factory, sports center ...) to those who are not in possession of a credential or authorized identification.