Connect-6021 for bidirectional connection of the former Märklin Digital System to the Central Station 60213. It allows for the control of 80 locomotives (both Motorola and mfx) through the Control Unit 6021, switching of locomotive functions (Function, F1 – F4), and switching of magnetic articles with synchronized position display. It can be used with the Memory 6043 as well as the memory functionality of the Central Station 60213. Connections on the back: M-Bus cable (for connection to 60213). Side connection: plug strip for connection to the "6021 world.".