Originally Posted by
DaveReidUK
That particular FDR trace is pretty unambiguous - it's labelled "Manual (Electric) Trim Command" and has three possible states: "Trim Up - Man", "Trim Down - Man" and "No Trim".
If that's not a reference simply to the pickle switch position, one would expect it to be described differently.
There is, of course, a separate FDR trace with the legend "Automatic Trim Command" and states described as "No Trim", "Trim Up - FCC" and "Trim Down - FCC".
From names of signals you should not deduce how they were captured and processed. I am not saying that they are not analogue signals digitized by FDR directly but I just would like to know fore sure.
How would expect those signals to be called anyhow if they were captured by e.g. the FCC and passed to the FDR by some a digital bus?