Function Demo: NS 3170 Athearn SD40 with ESU LokSound

Athearn SD40 with 21-pin ESU LokSound Select decoder, 50321 speaker and 7 lighting functions. Directional lighting with long hood forward operation. Ditch lights on both ends flash when horn is sounded.
Function Outputs:
Headlights x2
Ditch Lights x4
Truck Lights x1