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Post by oldmuley on Feb 6, 2023 11:17:40 GMT -8
I have a Digitrax system with a programming track that is a stub track at the end of a yard. I’d like to use a DPDT switch to be able switch the track from programming to operations, basically so I can drive my engines back onto the layout once I’m done. Digitrax shows wiring a DPDT switch to do this at: www.digitrax.com/tsd/KB71/dpdt-double-pole-double-throw-electrical-switch/What I’d like to do is also have a visual indicator such as a light, that would let me know when the track is in program vs ops mode. There doesn’t really seem to be a good way to do this with a single DPDT switch, so what would I need? Is there such a thing as a “double” DPDT switch? |
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Post by Mark R. on Feb 6, 2023 11:27:20 GMT -8
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Post by jonklein611 on Feb 6, 2023 15:31:02 GMT -8
Could just have the LED on the programming legs of the switch. Open circuit = LED off, throw the switch and LED comes on
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Post by Mark R. on Feb 6, 2023 16:36:30 GMT -8
Could just have the LED on the programming legs of the switch. Open circuit = LED off, throw the switch and LED comes on At which point would there be an open circuit. Both main track and program track have voltage on the rails. Mark. |
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Post by jonklein611 on Feb 6, 2023 16:58:50 GMT -8
Could just have the LED on the programming legs of the switch. Open circuit = LED off, throw the switch and LED comes on At which point would there be an open circuit. Both main track and program track have voltage on the rails. Mark. Yup had a brain fart. The 3 pole is the way to go. |
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Post by santafe49 on Feb 7, 2023 14:27:10 GMT -8
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Post by jonklein611 on Feb 7, 2023 15:05:24 GMT -8
Exactly, you can swap the pieces / parts around to indicate when power is applied to the programing side only. |
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Post by oldmuley on Feb 8, 2023 17:11:43 GMT -8
That is exactly what I'm looking for. I knew there had to be a solution out there. Thanks. |
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Post by oldmuley on Mar 5, 2023 17:42:16 GMT -8
I purchased one and spent the weekend working on getting it installed. It's basically like two DPDT switches smashed together, so wiring wasn't as tricky as I thought. The surprising thing was just how big the switch was!
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Post by Mark R. on Mar 6, 2023 9:03:08 GMT -8
I purchased one and spent the weekend working on getting it installed. It's basically like two DPDT switches smashed together, so wiring wasn't as tricky as I thought. The surprising thing was just how big the switch was! You must have gotten a heavy duty variety ? The mini versions are only 0.9" x 0.5" x 1.4"(L*W*H) with a 1/4" shaft. www.amazon.ca/Uxcell-Position-4PDT-Toggle-Switch/dp/B016VQZSGMMark. |
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