@Adrian! posted:So L is series with the engine board meaning the DCS waveform won't enter. That means this discussion is not for a DCS engine right? (I think this is what I was missing above).
The electronics we are talking about protecting are not DCS decoders. Right?
Yes, John was specifically talking about TMCC/Legacy locomotives. Here is his exact quote-
Of course, while you're in there, you can add the 22uh choke in the track power feed for any TMCC/Legacy locomotives to minimize any effect the their electronics on the DCS signals. If you choose to do that, the best way is to put the choke in the center track feed and then the TVS diode across the feed after the diode. That way the DCS signal isn't significantly affected by the bulk capacitance of the TVS diode in the locomotive.
Easy to miss that point with all the back-and-forth.
