SANRAD I3.1.1205 - Manual (Page 213)

Chapter 10: Routine V-Switch Maintenance 10-27
Level 3: Default Factory System
A direct RS232
connection is
necessary.
This clears the database of all configurations executed on the V-Switch,
including user login profiles. Use this level if you want to completely
clear a V-Switch’s database.
For example, if you want to transfer a V-Switch to another branch office or
campus department with different system administrators, this level will
return the V-Switch to the same state it left the factory for shipping.