Over the last few months I created a document that describes the functions in the CasparCG server and client for a specific installation that I specified. My intention was always to offer a more general version for use by the CasparCG community, and this thread has encouraged me to convert that document from the specific installation version to a more general version.
The document uses a commercially licensed publication package, so I have only published the PDF version output by the publishing package.
I have posted that general document on Github so that any issues are easy to log. The document is available from https://github.com/amwtech/CasparCG_Documentation