Hello jdurfey,
I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance. Please call 1-800-821-2797.
Security Guide for the Versant 280, page 45, section 9-4 lists two tables with Volatile/Non Volatile Memory. The tables are the same.
Looks like a typo in the documentation. Has there been an update to this with the correct information?