| 摘要 |
<p>The interface has a protective circuit (9) that shifts a signal processing circuit (5) in a condition, in which the signal processing circuit processes pushbutton or switch signals. The protective circuit shifts the signal processing circuit in a condition, in which the signal processing circuit processes digital signals (UBus), only when the protective circuit detects the absence of a main voltage signal at ports (k, k') during a preset time period. A terminal (KS) is provided for shifting to a control unit (mu C1) of an operating device (6). An independent claim is also included for a method for operating an interface for an operating device that controls an illuminant.</p> |
