DCC Auto Reverse Module This easy to hook up module takes the trouble and switch control out of a reverse loop section on your DCC layout. Hook it up and you don’t have to monitor your reverse loop section on your layout. The DCC auto reverse module does all the switching for you. A loco will enter the reverse loop section and exit. No hesitation, no stopping, it will exit as smoothly as it entered. Features simple wiring--2 input and 2 output wires, 2 amperes rating, works with all DCC layouts.