The first picture (official Marklin picture) shows the older 7686. The new 7687 looks almost identical.

This set enables easy control of the turntable with track indexing in the Digital system. The deck turns to the right/left in single steps and continuously. The set consists of an electronic control circuit with a digital decoder, all necessary hardware and complete instructions.

If used with the old central unit (6021 Control Unit), a digital accessory controller (6040 Keyboard) is required to control the digital turntable (7286 with 7687). This digital control is independent of the conventional or digital control of the trains.