Technical data

Memory Clearing, Sanitization and Removal Procedures

6 Memory Clearing,

Sanitization and Removal

Procedures

This chapter describes several security functions you can use to remove sensitive data stored in the

instrument before moving it from a secure development environment. The functions described are:

• “Erase All” on page 30

• “Erase and Overwrite All” on page 31

• “Erase and Sanitize All” on page 32

• “Force Internal to SD Card” on page 33

• “Clear Persistent State Information” on page 34

NOTE The functions described in this chapter are not available in the E8257N instrument,

unless Option 340 has been installed.

CAUTION These functions do not erase or sanitize external media connected to the instrument’s

USB port.

CAUTION (This information applies only to PSG and ESG Signal Generators.)

Do not use the Erase All, Erase and Overwrite All, Erase and Sanitize All, Erase,

Overwrite, or Sanitize procedure with any of these firmware revisions:

E44x8C: C.04.84, C.04.86, C.04.95

E82x7D: C.04.81, C.04.85, C.04.92

E8663B: C.04.90

If your instrument’s current firmware revision is among those listed above, please

upgrade immediately to newer firmware. For details, see “Firmware Update

Procedure” on page 39.