LokPilot 5 DCC-Only Control-Only Decoder by ESU is a great choice for HO, S and O Scale locomotive models. LokPilot 5 supports DCC and will can NOT be used for analog AC systems. It offers a choice of 14 through to 128 speed steps, two and four-digit addresses in DCC format and up to 32 functions. On RailComPlus(R) systems the decoders register themselves automatically on command stations equipped with the feature. This decoder is dual-mode and can operate on standard DC railroads. This decoder supports all DCC programming modes and thanks to RailCom you may read out the CV values on the main, provided you have a command station supporting RailCom. There are utility registers for command stations that only facilitate programming of CVs ranging from 1 to 255.