I'm having some odd issue where the serial data coming out of the LCS SER2 box is not recognized by the DZ-2500 switch machines. I can see the data on my 'scope, and it appears to be reasonable, but it's totally unrecognized by any DZ-2500C switch machine! I switched to the DZ-2001L data driver and that's working with all 24 switch machines, so I know something is amiss with the SER2 data output.
I also don't get any serial data out of the CSM2 boxes, another oddity that I can't explain!