38
Agilent E8663B Analog Signal Generator User’s Guide
Basic Operation
Using Security Functions
Removing Sensitive Data from E8663B Memory
When moving the E8663B signal generator from a secure development environment, you can remove any
classified proprietary information stored in the instrument. This section describes several security
functions you can use to remove sensitive data from your instrument.
Erase All
This function removes all user files, user flatness calibrations, user I/Q calibrations, and resets all table
editors with original factory values, ensuring that user data and configurations are not accessible or
viewable. The instrument appears as if it is in its original factory state, however, the memory is not
sanitized. This action is relatively quick, taking less than one minute (the exact time depends on the
number of files).
To carry out this function, press
Utility
>
Memory Catalog
>
More (1 of 2)
>
Security
>
Erase All
>
Confirm Erase
.
NOTE
This function is different than pressing
Utility
>
Memory Catalog
>
More (1 of 2)
>
Delete All Files
, which
deletes all user files, but does not reset the table editors.
Erase and Overwrite All
This function performs the same actions as
and then clears and overwrites the various
memory types in accordance with Department of Defense (DoD) standards, as described below.
To carry out this function, press
Utility
>
Memory Catalog
>
More (1 of 2)
>
Security
>
Erase and Overwrite All
>
Confirm Overwrite
.
Erase and Sanitize All
This function performs the same actions as
and then adds more overwriting
actions. After executing this function, you must manually perform some additional steps for the
sanitization to comply with Department of Defense (DoD) standards. These actions and steps are described
below.
To carry out this function, press
Utility
>
Memory Catalog
>
More (1 of 2)
>
Security
>
Erase and Sanitize All
>
Confirm Sanitize
.
Removing Persistent State Information Not Removed During Erase
Persistent State
The persistent state settings contain instrument setup information that can be toggled within predefined
limits such as display intensity, contrast and the GPIB address. In vector models, the user IQ Cal is also
SRAM
All addressable locations are overwritten with random characters.
CPU Flash
All addressable locations are overwritten with random characters and then the flash blocks are erased. This
accomplishes the same purpose of a chip erase, however, only the areas that are no longer in use are erased and the
factory calibration files are left intact. System files are restored after erase.
SRAM
All addressable locations are overwritten with random characters.
