Built-In Security Features
You can use the TekSecure function to erase setup and reference waveform data
stored in internal flash memory.
The MDO4000 Series models have four USB host ports (two on the front and two
on the rear panel) and one USB device port on the rear panel. Any USB devices
can be remov
ed and stored or destroyed.
What TekSecure Does
NOTE. TekSecure does not erase or change factory calibration constants, Ethernet
settings, Demo setups, or protected user data. To overwrite protected user data,
use the pr
ovided procedure. (See page 8, To Overwrite Protected User Data.)
The TekSecure function does the following:
Erases the flash sector containing the reference waveforms and saved setups
(except Demo setups), setting all bytes to the value 0xff.
Replaces all waveforms in all reference waveform memories with the null
sample value of 0x8000.
Replaces the current front-panel s etup and all stored setups (except Demo
setups) with the default setup values
Calculates the checksums of all reference waveform memory an d setup
memory locations to verify successful completion of waveform and setup
erasure.
Displays a dialog box indicating whether the secure erase was successful
or unsucce
ssful.
To Use TekSecure
1. Push the front-panel Utility button.
2. Push the Utility Page lower-bezel button a nd use the Multipurpose a knob
to select Config.
3. Push the TekSecure Er ase Memory lower-bezel button.
4. Push the OK Erase Setup and Ref Memory side-bezel b utton. Wait for the
“TekSecure operation complete” dialog box to d isplay.
5. Push the Menu Off front-panel button to close the dialog box.
To Reset the Instrument
RAM
1. Power
off the instrument.
2. Power on the instrument.
MDO4000 Series Oscilloscopes and Application Modules Decla ssification and Security Instructions 7
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