Acronova NBCH07 Series - Manual (Page 18)

User’s Manual, Nimbie Chorus NBCH07 Version 9E1
UPDATE M.BOARD Update the system firmware of the Master unit (for
service maintenance only).
UPDATE MODULE Update the controller firmware of the Master unit (for
service maintenance only).
RESET TO DEFAULT Reset the system to factory default.
18 @ 2010, Acronova Technology, Inc.