This is an MRC Auto Reverse Module for the Automated Operation of a DCC Reverse Loop Section. It"s for experienced train collectors. When a DCC decoder equipped locomotive passes the insulated gaps leading into or from a reverse loop section, the MRC DCC Auto Reverse Module will automatically match the track"s polarity and maintain the same travel direction for the locomotive. This unit was not primarily designed for use with standard locomotives, and will cause a non decoder-equipped locomotive to travel in reverse after passing an insulated gap. When this happens, simply change the direction of the locomotive using the DCC command station. FEATURES: Simple pictorial instruction sheet clearly shows wiring directions. Auto Reverse Module has red and yellow wires protruding from its small, black, box-like structure. Connect the two yellow wires to the reverse loop section and the two red wires to the main line section as shown on instruction sheet. Rating: 2.0 amperes. Phone number and address for MRC servicing needs are included. INCLUDES: One Auto Reverse Module for Automated Operation of a DCC Reverse Loop Section REQUIRES: Train Track for Use Adult Supervision SPECS: Auto Reverse Module: Length: 1-1/4" (31mm) Width: 1" (25mm) Height: 1/2" (19mm) COMMENTS: Keep away from small children. Track not included. san 9/26/00 ir/jl