Reply to "Weak DCS signals, Failed TIU Output Drivers, and Design Solutions devloped under collaboration between AGHR and MTH"

Adrian!OGR Forum Member

johnf posted:
I found someone with an oscilloscope who is going to let me test a TIU on it, and I have a couple of basic questions.
1) If my TIU is powered externally but not connected to a layout and no locomotives are present, what do I press on the remote to get the TIU to issue a bunch of signals that I can measure?
2) Can I just connect the scope directly to the TIU outputs, or do I need the filter that GRJ mentioned in an earlier post.

2 gotta have the filter or you won’t see anything and won’t be able to trigger at a set level with the 18V 60 Hz underneath

1 it sends packets anytime the TIU is reset or of there’s any transients on the track so it's easiest to just toggle power.

6/15/183:49 PM

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