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DCC wiring question

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I'm wondering could the following be done:


On my layout I've a track in the yard setup aside for DCC programming. I've wired up a DPDT switch so it switches power from the live power bus over to the programming line from DCC ontroller . I can drive a train into the track, flick a switch, isolate it from the main bus and then program the chip.



job done I then flick the switch and roll back out again.


Now what I want to know is can I put one of my signal lights in position, hook it into the DPDT switch and depending on whether I'm programming I'd get a red light or running on the main power bus I'll have green.


Can it be done?




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Hi Bill,


Yes is the answer, but you will need a bridge rectifier to convert the DCC power in AC to DC then use a resistor to drop the voltage down. Or use a relay, the power from the DCC bus switches the coil in the relay and the relay switches a 12volt DC power supply to the LED signal.

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