I'm talking about the output from pin 24 of the R2LC. It's simply just the 3rd byte of the 3 byte string the R2LC receives. Repeats every 8.3 msec which is synced to the 60 Hz AC. I looked at my notes (from 13 years ago) a little more closely and it now appears that it is a zero start bit, the 7 data bits as per the Lionel table and then a zero stop bit. Except when there is no command being received then it's a zero start, 7 zeros for data, and a 1 stop.
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