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Double Heading Wiring Diagram [DNO]

This diagram shows how to connect two DNOs in different model locomotives together using the expansion port.



You can download a PDF version here.

For the slave cable we recommend using a bulgin 6 way plug and socket.

Be aware that the batteries will equalise through the slave cable, do not connect the slave cable when there is a significant voltage difference between the batteries. If you do need to connect batteries of different charge states then we recommend running thicker battery connecting wires outside of the slave cable.

The expansion connector pins are as follows:

Pin Colour Function Voltage
A Red Ignition 0 / B+
B Yellow Direction Fwd = 8V / Rev = 0V
C Blue Speed 0 – 4V
D Green Ground 0v