| 摘要 |
The manual control (1) has two keypad elements (2, 3) that are directly and indirectly illuminated by a keypad lighting, where the lighting is connected with a voltage supply. The keypad lighting has two light sources e.g. multicolor LEDs, which are controlled independent of each other by a control device. The keypad elements are attached to the respective light sources, by an optical fiber. The control device has a microcontroller and is connected with the light sources by an adapter comprising a shift register. |
