is used as an interface between security technology sensors and the KNX. The device has inputs, so-called detector groups. They are used for the monitored connection of passive detectors (e.g. magnetic contacts and/or glass break sensors) to ABB i-bus® KNX or for connecting potential-free contacts in applications with increased security requirements. There are 2 relay contacts available for directly controlling the signal generators or reporting status information. The security terminal can be used as a system with independent alarm logic or in combination with the SCM/S security module or an intrusion alarm control panel (GM/A 8.1 or L240 with KNX interface XS/S). The device requires an external 12 V DC SELV auxiliary voltage (e.g. NTU/S 12.2000.1).