Wishful thinking - the 200D will reject the 200B config file. Just try it.
But there is a trick to do it anyway:
- backup the (factory-reset) config of the 200D
- take a copy of the old config file of the 200B
- replace the first 3 lines in the config file
- now it states that the config is coming from a 200D
You can now restore that config file to the 200D. You might run into minor issues if
- interface names do not match between models
- switch ports were configured to be single independent ports
To check for import errors, open the CLI and type 'diag deb conf read'. Work your way through the messages until none remains.