There is another problem with the CSM2 and the DZ-2500. When using the CSM2 to supply serial data, there is a data-race condition. If you power them up at the same time, the DZ-2500 apparently gets scrambled because of something it see s as the CSM2 is initializing the serial data. This happens about one out of every three or four power-up cycles from a cold start. It drove me nuts for about a week before I finally figured out where the problem was. The "fix" apparently is to power up the CSM2 and wait a couple of seconds before powering up the DZ-2500 switch machines. That way the CSM2 serial data is stable and the issues don't come up. It's important to note that powering up the command base, the DZ-2001, and the DZ-2500's at the same time isn't a problem, only the CSM2 serial data at initialization appears to be a problem.
However, the really big problem for me is the lack of correct operation of the DZ-2500 operation from the LCS application. I'm bummed this doesn't work correctly.