Primary Address Short address Start Volts Range 0-32 Acceleration momentum Range 0-32 Brake momentum Range 0-32 Max Voltage Range 0-32 Version ID Manufacturer ID Long Address 4 digit address (Range 0001-9999) Consist Address Normal Reversed Consist Direction Locomotive Address Only Respond to Consist Address Functions Respond To Address Forward Reverse Normal direction of motion 14 28/128 (recommended) Speed Steps Off On Analog conversion mode Don't use Speed Table Use Speed Table Use Speed Table 2 digit addressing 4 digit addressing Addressing Mode Off On Sound On/Off Horn Volume Range 0-3 Bell Volume Range 0-3 Bell Ring Rate Range 0-50 Diesel Rumble Volume Range 0-3 Brake Squeal Volume Range 0-3 Dynamic Brake Volume Range 0-3 Air Release Volume Range 0-3 Air Pump Volume Range 0-3 Safety Pop Value Volume Range 0-3 Engine Cooling Fan Volume Range 0-3 Coupling Volume Range 0-3 Random Noise Volume Range 0-3 Rail wheel clack Range 0-3 User ID #1 User ID #2 Normal On/Off Rule 17 Head Light Range 0-1 Ditch Lights Mars Light + Strobe Single Pulse Mars Light + Strobe Double Pulse Accessory 1 and 2 Light Effects Ditch Light Rate, F1 Range 0-20 Accessory Light Brightness Range 0-12 Off On Auto Brake squeal Type 1 Type 2 Off Coupling Sound Type Disable Enable Lights Enable/Disable Coupling Fire Volume Range 0-3 Brake Release Volume Range 0-3 Disable Enable Random Noise Off RPM and notch synchro to speed linear RPM synchro to speed notch up/down with F8/F9 Diesel Sound Type Linear Slow increase at slow speed Fast increase at slow speed Select Speed Curve MRC sound decoders for EMD Modern large diesel locos, item 1634 Controls whether this loco's functions respond in the consist, or just to this loco's unique address MRC