Extends the MB-Secure with a LTE/UMTS/GPRS modem. Enables with the license 059830 and 059831 the connection/communication to the control center, SMS respectively E-Mail transmission. Up to two modems can be connected and operated per MB-Secure PRO The connection and the communication link LTE modem - MB-Secure PRO is made via the two USB ports and via the two data interfaces on the MB-Secure PRO computer board. The LTE modem is installed in each case in the central housing on the upper housing side wall and does not require a module mounting location on the rear plate. There are 2 mounting places each in the central housing for secure mounting By using a second LTE modem, a second IP transmission path can be implemented for switching on and transmitting messages to a receiving center (guard company). Furthermore, a connection e.g. to WINMAG plus, IQ MultiAccess, IQ PanelControl and the WEB interface is additionally possible (also via a separate IP network).