Bus interface to connect the System 9000 to a KNX system for home control. Data can be sent on request or by changing the status. Enables the control of areas (armed/partially armed/disarmed) and switching outputs (on/off) as well as the status reporting of areas (armed/partially armed/disarmed/entry delay/exit delay/burglary/fire/panic) and switching outputs. The status of all detectors/detector inputs is visible in the KNX. Occupies an address in the system. Power supply via bus, quiescent current consumption 10mA, with galvanic isolation 4kV bus/KNX. Power supply on the KNX side 29V DC, 16mA, 2-wire connection via EIB/KNX MicroTerminal for 0.6-0.8mm² wire. Housing with sabotage protection against unscrewing and tearing off, dimensions: 182 x 132 x 45mm.