English LSUPage 20Table of contentsHow to use this manual 21Intended use 21Safety instructions 22EMC declaration 24Operation overview 25Circuit Diagram (Fig. 1)Technical specifications 26Checking the package contents 26Required tools and consumables 26Safe and correct soldering 27Assembling the kit 28Parts list / Printed Circuit Board (PCB) layout (Fig. 2)Connecting the light signal switch 31Connecting the signal (Fig. 3)Connecting the train synchronisation (Fig. 4)FAQ 34Manufacturer's note 35Certification 35Conditional warranty 35* The following manufacturers and their products are mentioned in thismanual:Märklin & Cie. GmbH, Goeppingen, GermanyViessmann Modellspielwaren GmbH, Germany