Keysight Technologies N6900 Series, Operating And Service Manual

Page: 348 / 358

Instrument Sanitize
This procedure is not recommended for use in routine applications because of the
possibility of unintended loss of data.
This procedure sanitizes all user data except for the black box recorder data. It writes all zeros to flash
memory and then performs a full chip erase as per the manufacturer’s data sheet. Identification data
such as instrument firmware, model number, serial number, MAC address, and calibration data is not
erased. After the data is cleared, the instrument is rebooted.
If you cannot access the Admin menu, it may be password protected.
Front Panel Menu Reference SCPI Command
Select System\Admin\Sanitize
Select Sanitize.
Selecting Sanitize removes all user-data from the
instrument and cycles power.
SYST:SEC:IMM
Turn-on after Sanitization
The first time the unit is turned on after it has been sanitized, several NVRAM checksum errors will be
generated. These errors annunciate the fact that two files were missing, which have been recreated
with default values. The next time the unit tuns on, there should be no errors.
Sanitizing the Black Box Recorder
For instruments with serial numbers MY59100101 and later, the above procedure sanitizes the black
box recorder.
For instruments with serial numbers prior to MY59100101, the System\Admin\Sanitize command
deletes the BBR log and snapshot files, but will not sanitize the Black Box Recorder drive.
To sanitize the N7908A Black Box Recorder drive requires that you removed the board from the
instrument and destroy it (see
Black Box Recorder ).
When the BBR board has been removed from the instrument, use the front panel System\BBR\Status
menu to remove the BBR accessory from the instrument's option list.
8 Service and Maintenance
348 Keysight N6900/N7900 Series Operating and Service Guide