Broadway Limited Paragon Series and Paragon2/Paragon3/Paragon4 Series models can be operated in DC or DCC straight out-of-the-box without making any changes. To operate in DC, place your model on the track and turn the voltage up. The sound will come on around 5 volts for Paragon2 models, 8 volts for Paragon3, and 9~10 volts for Paragon4. The model should move out around 9 volts for Paragon2 models, 11 volts for Paragon3, and 12 volts for Paragon4. To operate in DCC, place your new model on the track and select loco 3 on your DCC controller. The default address of ALL BLI models is 3. If you change your address accidentally, you can always perform a manual reset and your model will revert to loco address 3. Broadway Limited BlueLine Series models can be operated in DC straight out-of-the-box. Place the model on the track and turn up the voltage. Note: the start-up sequence must be complete before the model will move in DC. To operate your BlueLine model in DCC, you must install a DCC motor decoder. The sounds will work on a BlueLine model as soon as you put it on the track. However, the BlueLine Series models do not have a motor decoder. After you plug your motor decoder of choice into the 8-pin socket on the circuit board, your model will be ready to operate on default address 3.