Tektronix TBS2000B Series User manual

TBS2000B Series
Oscilloscope
Declassification
*P077154000*
077-1540-00

TBS2000B Series
Oscilloscope
Declassification
www.tek.com
077-1540-00
Warning
The servicing instructions are for use by qualified personnel only. To avoid
personal injury, do not perform any servicing unless you are qualified to do
so. Refer to all safety summaries prior to performing service.

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or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products
are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all
previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
■In North America, call 1-800-833-9200.
■Worldwide, visit www.tek.com to find contacts in your area.

Table of Contents
Preface ................................................................................................................................................. 3
Products .......................................................................................................................................... 3
Terms .............................................................................................................................................. 4
Clear and sanitize procedures
Main board ...................................................................................................................................... 1
USB flash drive .............................................................................................................................. 1
Charges ........................................................................................................................................... 2
TekSecure ....................................................................................................................................... 2
Memory devices ............................................................................................................................. 2
Terminology ................................................................................................................................... 3
Clear NAND Flash data using TekSecure ..................................................................................... 5
Media and data export devices ....................................................................................................... 5
Change log
TBS2000B Series Declassification i

Table of Contents
ii TBS2000B Series Declassification

Preface
This document helps customers with data security concerns to sanitize or remove
memory devices from their instrument.
This series of instruments contains an open architecture PC with removable mass
storage. You can order additional removable mass storage devices to swap in and
out of the instrument as needed for security reasons.
These products have data storage (memory) devices and data export interfaces
(USB ports, Ethernet, and eSATA). These instructions describe how to clear or
sanitize the memory devices and disable the data output interfaces. The
instructions also describe how to declassify an instrument that is not functioning.
Products
The following Tektronix products are covered by this document:
■TBS2072B
■TBS2102B
■TBS2202B
■TBS2074B
■TBS2104B
■TBS2204B

Terms
The following terms may be used in this document:
■Clear: This eradicates data on media/memory before reusing it in a secured
area. All reusable memory is cleared to deny access to previously stored
information by standard means of access.
■Erase: This is equivalent to clear.
■Media: Storage/data export device. A device that is used to store or export
data from the instrument, such as a USB port/USB flash drive.
■Sanitize: This removes the data from media/memory so that the data cannot
be recovered using any known technology. This is typically used when the
device will be moved (temporarily or permanently) from a secured area to a
nonsecured area.
■Scrub: This is equivalent to sanitize.
■Remove: This is a physical means to clear the data by removing the memory
device from the instrument. Instructions are available in the product service
manual.
■User Accessible: User is able to directly retrieve the memory device
contents.
■User-Modifiable: The memory device can be written to by the user during
normal instrument operation, using the instrument user interface or remote
control.
■Volatile memory: Data is lost when the instrument is powered off.
■Nonvolatile memory: Data is retained when the instrument is powered off.
■Power off: Some instruments have a “Standby” mode, in which power is still
supplied to the instrument. For the purpose of clearing data, putting the
instrument in Standby mode does not qualify as powering off. For these
products, you must either press a rear-panel OFF switch or remove the power
source from the instrument.
■Instrument Declassification: A term that refers to procedures that must be
undertaken before an instrument can be removed from a secure environment.
Declassification procedures include memory sanitization and memory
removal, and sometimes both.

Clear and sanitize procedures
If your instrument is not functioning and you need to clear or sanitize it, proceed
as follows:
Main board
Remove the Main board and return the product to Tektronix. A new main board
will be installed, and the instrument will be repaired and adjusted as necessary.
For removal instructions, refer to the TBS2000B Series Digital Storage
Oscilloscope Service Manual , part number 077-1150-XX, available on the
Tektronix Web site at www.tek.com/manuals.
After removal of the main board, refer to your company's internal policies
regarding storage or disposal of the board.
USB flash drive
Remove the USB flash drive and return the instrument to Tektronix for repair.
After removal of the USB flash drive, refer to your organization's internal
policies regarding handling or disposal of the flash drive.
TBS2000B Series Declassification 1

Charges
Replacement of any missing hardware will be charged according to the rate at the
time of replacement.
TekSecure
TekSecure™ capability is present in TBS2000B oscilloscopes. Pressing
TekSecure erases and overwrites all of the waveform and setup memories. The
waveform memories, stored in nonvolatile memory, are overwritten with an
"empty," all zeros pattern. The setup memories, stored in nonvolatile memory,
are overwritten with the factory default front-panel setup. The current front-panel
setup is also overwritten with the default factory setup.
Using TekSecure will not affect calibration of the instrument because the
calibration constants are stored in another nonvolatile memory completely
separate from any acquisition data. This allows complete erasure/removal of any
secure data without affecting the oscilloscope calibration. It also allows the
oscilloscope to be calibrated in a non-secure site and then used in a secure area
without the need for recalibration.
Memory devices
The following tables list the volatile and nonvolatile memory devices in the
instrument.
Clear and sanitize procedures
2 TBS2000B Series Declassification

Terminology
The following terms are used in the tables in this section:
■User data. Describes the type of information stored in the device. Refers to
waveforms or other measurement data representing signals connected to the
instrument by users.
■User settings. Describes the type of information stored in the device. Refers
to instrument settings that can be changed by the user.
■Both. Describes the type of information stored in the device. It means that
both user data and user settings are stored in the device.
■None. Describes the type of information stored in the device. It means that
neither user data or user settings are stored in the device.
■Directly. Describes how data is modified. It means that the user can modify
the data.
■Indirectly. Describes how data is modified. It means that the instrument
system resources modify the data and that the user cannot modify the data.
Table 1: Volatile memory devices
Type & min.
size
Function Type of
user info
stored
Backed up
by battery?
Method of
modificatio
n
Data Input
method
Location User
accessible
To clear To sanitize
SDRAM
768 MB (std)
Holds
acquisition
data
User data No Indirectly Firmware
operations
4 ch Main
board
Yes Remove
power from
the
instrument
for at least
20 seconds
Remove
power from
the
instrument
for at least
20 seconds
SDRAM
256 MB (std)
Holds active
acquisition
data
User data No Indirectly Firmware
operations
2 ch Main
board
Yes Remove
power from
the
instrument
for at least
20 seconds
Remove
power from
the
instrument
for at least
20 seconds
SDRAM
256 MB (std)
Microproces
sor system
memory
User data,
user settings
No Directly Written by
processor
system
Main board Yes Remove
power from
the
instrument
for at least
20 seconds
Remove
power from
the
instrument
for at least
20 seconds
Clear and sanitize procedures
TBS2000B Series Declassification 3

Table 2: Nonvolatile memory devices
Type & min.
size
Function Type of user
info stored
Method of
modification
Data Input
method
Location User
accessible
To clear To sanitize
eMMC NAND
flash
4 GB
Holds
instrument
operating
system and
application
software.
Holds all user-
storable data
such as
waveforms,
measurement
results, and
instrument
settings.
User data,
user settings
Indirectly Firmware
operations,
user input
Main board Yes Use
TekSecure to
clear
reference
waveforms
and
instrument
setups.
Use
TekSecure to
clear
reference
waveforms
and
instrument
setups.
Serial Flash
4 MB
Holds
instrument
calibration
data, serial
number, and
Option key.
None Indirect Firmware
operations
Main board No Not
applicable,
does not
contain user
data or
settings.
Clearing
would disable
instrument
functionality.
Not
applicable,
does not
contain user
data or
settings.
Clearing
would disable
instrument
functionality.
Clear and sanitize procedures
4 TBS2000B Series Declassification

Clear NAND Flash data using TekSecure
Procedure to clear NAND Flash data using TekSecure:
1. Before doing TekSecure, save your user data into a USB thumb drive. See
the following steps:
■Press Save/Recall on the front panel.
■Select Save Setup (bezel 1) , select Save to USB file (bezel 2), press
Save (bezel 5), to save setup to USB.
■Select Save Waveform (bezel 1), select Save to USB file (bezel 2), press
Save (bezel 5), to save waveform to USB.
2. Enter into Utility > Config > press Teksecure Erase Memory.
3. There will be a pop up menu of warning showing: "This procedure will erase
all nonvolatile RAM, All reference waveforms and save setups will be
erased. Calibration constants will be retained. This will take approximately
3 minutes. Are you sure you want to erase?"
4. Press Yes. It will begin TekSecure, and after it finishes, it will reboot the
instrument.
Media and data export devices
The following table lists the data export devices in the instrument.
Clear and sanitize procedures
TBS2000B Series Declassification 5

Table 3: Media and Data export devices
Type Function Method of
modification
Data input
method
Location User accessible To disable
USB Host port
(supports
removable USB
flash drive)
User storage of
reference
waveforms, screen
images, and
instrument setups.
Wireless
connection
through USB WiFi
dongles.
Directly User writeable USB host ports on
front of the
instrument: Just
for USB disk Files
can be deleted or
overwritten on the
oscilloscope or a
PC, or USB flash
drive can be
removed and
destroyed.
USB host ports on
rear of instrument:
Just for USB WiFi
dongles.
No The USB host port
cannot be
disabled.
USB Device port Supports remote
control and data
transfer to a PC
Directly Remote control
using USBTMC
USB device port
on rear of the
instrument
Yes The USB Device
port cannot be
disabled.
LAN Ethernet
connector
Supports remote
control and data
transfer to a PC
Directly NA Rear panel Yes N/A
Clear and sanitize procedures
6 TBS2000B Series Declassification

Change log
Document part
number
Revision date Change description
TBS2000B Series Declassification 7

Change log
8 TBS2000B Series Declassification