xx
Tektronix LE160 & LE320 Linear Equalizers
ZZZ
Declassification and Security
Instructions
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*
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Table of Contents
Preface .............................................................................................................. iii
Clear and sanitize procedures . ..... . ..... . ..... . ..... ..... . ..... . ..... . ..... . ..... . ... . . . .... . ..... . ..... . ..... . .. 1
Memory devices .................................. ................................ ............................. 1
Media and da
ta export devices .... ................................ .................................. ......... 2
Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions i
Table of Contents
ii Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions
Preface
This document helps customers with data security concerns to sanitize or remove
memory devices from the BERTScope DPP Series instruments.
These products have data storage (memory) devices and data output devices (USB
ports). These instructions tell how to clear or sanitize the memory devices and
disable the
instrument that is not functioning.
data output devices. The instructions also tell how to declassify an
Reference
Products
Terms
The procedures in this document are written to meet the requirements specified in:
NISPOM, DoD 5220.22–M, Chapter 8
ISFO Process Manual for Certification & Accreditation of Classified Systems
under NISPOM
The following Tektronix products are covered by this document:
LE160
LE320
The following terms may be used in this document:
Clear. This removes d ata 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.
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
emoval, and sometimes both.
r
Media storage/data export device. Any of several devices that can be used
to store or export data from the instrument, such as a USB port.
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 will need to either pressarear-panelOFFswitchorremovethe
power source from the instrument.
Remove. This is a physical means to clear the data by removing the memory
device from the instrument.
Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions iii
Preface
Sanitize. This
be recovered by other means or technology. This is typically used when the
device will be moved (temporarily or permanently) from a secured area to a
non-secured area.
Scrub. This is equivalent to sanitize.
User Accessible. User is able to directly retrieve the memory device contents.
User-modifi
instrument operation, using the instrument interface or remote control.
Volatile m
eradicates the data from media/memory so that the data cannot
able. The user can write to the memory device during normal
emory. Data is lost when the instrument is powered off.
iv Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions
Clear and sanitize procedures
Memory device
Terminology
s
The following tables list the volatile and nonvolatile memory devices in the
standard instrument and listed options. Detailed procedures to clear or sanitize
these devic
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 informationstoredinthedevice.Itmeansthat
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 nor 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.
es, if any, are shown following each table.
le 1: Volatile memory devices
Tab
Typ
of user
eand
Typ
min. size Function
SRAM
200KB
Microprocessor
system
memory
inf
stored
Both No Directly Firmware
e
Backed-up
o
by
battery
hod of
Met
modification
Data
ut
Inp
method Location
operation
Controller
board
r
Use
accessible To clear
No Remove power
from the
instrument for
at least 20
seconds.
cess to
Pro
sanitize
Remove power
from the
instrument for
at least 20
seconds.
Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions 1
Clear and sanitize procedures
Table 2: Nonvol
atilememorydevices
Typ e
of
user
Type an d
min. size Function
Flash
memory,
8MB
SDMicro
card
Holds
instrument
operating
system,
calibration
data, serial
number, and
Option key(s)
Holds
instrument
operating
data
info
stored
None Indirect Firmware
None Indirect Firmware
Method
modification
Media and data export devices
The follo
listed options. Detailed procedures to disable these devices, if any, are shown
following the table.
Data
Input
method Location
operations
operations
Controller
Board
Controller
Board
User
accessible To clear To sanitize
No
No
N/A, does not
contain user d
or user settings.
Clearing would
disable inst
functionality.
N/A. does not
contain us
rument
er data.
ata
N/A, does
not contain
user data or
user settings.
Sanitizing
would disable
instrument
ity.
functional
N/A. does not
contain us
data.
er
wing table lists the data export devices in the standard instrument and
Table 3: Media and data export devices
Type and m in.
size
USB device port Supports
Function
remote
control and
data transfer
to a PC.
Method of
modification
Directly Remote control
Data Input
method
via USB
Location User accessible Process to disable
USB device
port on
the side of
instrument
Yes
The USB device port cannot
be disabled.
2 Tektronix BERTScope LE160 & LE320 Declassification and Security Instructions
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