Mark, in your diagram, the shield is driving the track and the SBOOST input. The SBOOST is driving the DS64. The only problem is, if the track shorts, the shield driving it shuts down, and there is no signal to the SBOOST, which means no DCC signal (and perhaps no power) to the DS64. It would be best to connect the Shield to both the SBOOST input and the DS64(s). Then connect the SBOOST output to the track. This way, if the track shorts, the SBOOST output will shut down, but the shield will be unaffected, and still able to command the DS64.
Understand what you are referring to however if the track shorts, and the shield goes into short circuit protection, it shuts down so wouldn't that produce the same result regardless of whether the booster is part of the circuit and more importantly, the dcc input to the ds64 down as well. The DS64 if not getting signal from booster due to shield shutdown, neither would DS64 since its connected to the same shield?? In the diagram I sent.. If a track short occurs, the shield shuts down, the sboost, while not receiving or sending out any DCC instructions to the DS64 during the short, isolates the ds64 thus the DS64 does not see the short on its DCC input. During the short condition the SBoost should be isolating the DS64 keeping it at whatever state it was at until track signal is restored?? I'm leaning toward the TAM booster because of the accessory mode jumper and it seems that it was designed more to address both minimizing track power to drive ds64 as well as providing the desired protection it needs???
The DS64 would be tied to the shield output, not the sboost output. So the DS64 would still be working even if the track shorted and shut down the sboost.
The shield output , that's the problem because the track and the shield output are the same. At least using arduino and DCC++EX with motor shield, the shield output connects directly to the track. If track shorts then shield is shorted and goes into short circuit protection... Unless your connecting the track to the output of the booster but without a diagram it's hard to see and maybe I missed it in one of your previous posts?? Thank you for the info.
That's not my diagram... I'm suggesting an alternative to the diagram, with the track driven from the booster, and the booster and DS64 driven from the shield. Shield won't go down due to track short, thus able to power and command the DS64.
Thought boosting track instead of DS64 is a viable way too and it's a wiring option that makes sense to me. Thanks..
