gunrunnerjohn posted:Nothing you've said, taken literally, explains why both TMCC and DCS would quit working. There has to be something else in play.
TMCC failing is especially odd as normally very little you do with the power would affect it. Nothing on the input side of the TIU should have affected the TIU or TMCC/Legacy signals, so that doesn't explain anything.
Clarification: I did not mean to imply that DCS function changed, have not even tried that. Will do so just in case something changed, but for it to be involving all 4 channels seems unlikely. The Legacy/TMCC signal connection has always been to one wire output at a barrier strip just inches from the TIU output, from one of the TIU channels, so it reaches layout by that one common wire. That didn’t change.
