Märklin built-in digital decoder (C-track) with up to 32 digitally switchable functions. The respective number depends on the control unit used. Can be retrofitted with all C-track switches with electric drive. Digital formats mfx, Motorola and DCC. Connection via plug-in contacts. Address 1 to 256 adjustable with coding switch. A digital decoder can be used at the same time or later for electric drive of the switches. The decoder is simply connected with plug contacts and can be individually addressed for each switch (address 1 to 256). Tools or special knowledge are not required for installation. The digital power supply can be taken directly from the contact of the switch to the contact with the current. In this way, you get a ready-made digital switch that is immediately ready to use even on mobile systems.