The DM-1 is an inline adapter designed to modify any DS54 output to provide the bi-polar drive current needed to run reversible DC motors, solenoid switches (like Kato & LGB turnouts), lamps and other similar devices that draw up to 1/12 amp.

Just plug the DM-1 into any DS54 output and the DM-1 socket will provide a bipolar drive rated at 500MA continuous and 1 amp surge.