BACHMANN 36-557 21 PIN LOCO DECODER 21 Pin (21MTC) DCC Decoder suitable for models fitted with a 21 Pin DCC decoder socket (do not use with the Bachmann Branchline Class 90 – use 36-569 with these models). Highlights include: Dual-mode DCC/DC decoder with Back EMF function 4 powered function outputs (+2 logic level outputs) 0.9A continuous load RailComPlus® for automatic registration on Dynamis Ultima Suitable for models equipped with DC motors (including coreless motors) Operating Modes NMRA/DCC with 14, 28 and 128 speed steps Short and Long addresses DCC and DC operation (DC operation is de-selectable) Automatic recognition of operational mode and DCC speed step selection Supports Lenz® LG 100 braking sections Motor Control Features Suitable for models equipped with DC motors (including coreless motors) 0.9A continuous load Silent & safe 20kHz pulse width frequency motor regulation Motor output overload protection; Back EMF (de-selectable) Function Outputs 4 powered function outputs with overload protection 250mA load per output 500mA total load of all function outputs 2 additional logic outputs Shunting speed and momentum key selectable Dimensions 25.5mm x 15.5mm x 4.5mm Default Address Address 3 Programming DCC Service Mode & DCC PoM (Programming on Main) Additional Features RailCom® Feedback system RailComPlus® automatic Registration