Bus radio module, enables the integration of radio components into the 9000 system. Is connected via the bus and helps to optimize radio coverage. Occupies an address in the system. Up to three radio modules (including the radio module in a 9000ZF control center if necessary) can be used in one system. Operating voltage via bus. Quiescent current consumption: 35mA, I-calc =80mA, radio frequency: 868MHz, application area: indoors, dimensions: 43 x 160 x 24mm.