Model Rectifier Corporation AD520 DCC Auto Reverse Module

Model Rectifier Corporation AD520 DCC Auto Reverse ModuleAutomatically change polarity of your reverse loop or reversing section.Not for use of non-DCC layouts or with non-decoder equipped locomotives.The MRC DCC Auto Reverse Module will automate the operation of your DCC reverse section with simple 4-wire hookup. Connect the two yellow wires to the reverse loop section and the two red wires to the main line section as shown in the attached picture.