LSU EnglishPage 25Operation overviewThe light signal switch is developed to control a Maerklin* Hobby-lightsignal. Using it with Viessmann*-signal kits is possible as well. TheViessmann*-signal kits have to be modified, you can order the manualfrom us or you can download it from our homepage.The light signal switch has to be connected between the light signal andan external change-over switch which switches between the two signals("red" and "green"). Using a switching decoder to switch between thetwo signals is possible as well. Push-button switches as used e.g. toswitch points are not suitabe to switch between signals. In exactly thesame way as in real life, the light signal switch causes the LED switchedoff to fade slowly and the LED switched on to brighten slowly.Fig. 1: Circuit diagram100