This decoder has been designed to work only with MDS-Digital and AC Plus systems. It has 8 sensor inputs that can be configured to be used as sensor input N.O. (with normally open contact) or N.C. (normally closed contact), this is achieved by means of a bridge located next to each entrance. In both cases, the activation of the signal can be sent from the central unit in real time (instantaneous) or with delay, depending on the choice of the "time" parameter that controls the time that the sensor must be activated to generate a signal of alarm. DIN-10 rail format to facilitate installation inside an electrical equipment box, or they can be screwed directly onto the wall.