Tektronix PA4000 Series User manual

PA4000 Series Power Analyzers
Declassification and Security
ZZZ
Instructions
xx
www.tektronix.com
*P077105200*
077-1052-00

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Table of Contents
Preface.............................................................................................................. iii
Clear and Sanitize Procedures...................... .................................. ...................... ....... 1
Memory Devices............................................................................................... 2
Secure User Memory.......................................................................................... 3
Data Export Devices........................................................................................... 5
PA4000 Declassification/Security Instructions i

Table of Contents
ii PA4000 Declassification/Security Instructions

Preface
If you have data security concerns, this document helps you to sanitize or remove
memory devices from the Tektronix PA4000 Power Analyzer.
The PA4000 Power Analyzer has data storage (memory) devices and data output
devices (USB ports, RS232, GPIB connector (optional), and LAN Ethernet
connector). These instructions explain how to clear or sanitize the memory
devices.
If you have any questions, contact the Tektronix Technical Support Center at
www.tektronix.com/support.
Products The following Tektronix products are covered by this document:
PA4000 (1, 2, 3 or 4 channels).
Related Documents The Tektronix PA4000 Power Analyzer User Manual, part number 077-0815-xx,
is available on the Tektronix Web site at www.tektronix.com/manuals.
PA4000 Declassification/Security Instructions iii

Preface
Terms The following termsmaybeusedinthisdocument:
Clear. This removes 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.
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.
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 push a rear-panel OFF switch or remove the
power source from the instrument.
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.
Sanitize. This eradicates the data from media/memory so that the data cannot
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. The user is able to directly retrieve the memory device contents.
User-modifiable. The user can write to the memory device during normal
instrument operation, using the instrument interface or remote control.
Volatile memory. Data is lost when the instrument is powered off.
iv PA4000 Declassification/Security Instructions

Clear and Sanitize Procedures
The following terms are used in the tables in this section:
Type of User Info Stored This column describes the type of user information that is stored in the device:
User data. Waveforms and other measurement data that represent signals
that users connect to the instrument.
User settings. Instrument settings that the user can change.
Both. Both user data and user settings are stored in the device.
None. Neither user data nor user settings are stored in the device.
Method of Modification This column indicates the method of modifying data:
Direct. The user can modify the data.
Indirect. The instrument system resources modify the data. The user cannot
modify the data.
User Accessible This column indicates whether the user can retrieve the device contents:
Ye s . The user can directly retrieve the memory device contents.
No. The user cannot retrieve the memory device contents.
To Clear This column tells how to clear data from the media or memory device before
reusingitinasecuredarea. Allreusablememoryisclearedtodenyaccessto
previously stored information by standard means of access.
To Sanitize This column tells how to eradicate the data from the media or memory device so
that the data cannot 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.
PA4000 Declassification/Security Instructions 1

Clear and Sanitize Procedures
Memory Devices
The following tables list the volatile and nonvolatile memory devices in the
standard instrument and listed options. Detailed procedures to clear or sanitize
these devices, if any, are shown following each table.
Table 1: Volatile memory devices for the PA4000
Type and minimum
size Function
Type of
user info
stored
Backed
up by
battery
Method
of
modificationData input method Location
User
accessible To clear
Internal SRAM
(34 kBytes)
Main DSP
system memory
User
settings
No Indirectly Firmware CPU Card,
U3
No Remove power
from the
instrument for at
least 20 seconds.
DRAM (2 Mbytes) Display memory Data on
display
No Indirectly Firmware CPU Card,
U24
No Remove power
from the
instrument for at
least 20 seconds.
SRAM (1 MBytes) Main DSP
system memory
User
settings
No Indirectly Firmware CPU Card,
U2
No Remove power
from the
instrument for at
least 20 seconds.
Internal SRAM
(512 kBytes) x 4
Analog
measurement
system program
Measurement
results
No Indirectly Firmware CPU Card
U28, U30,
U32 and
U34
No Remove power
from the
instrument for at
least 20 seconds.
Ethernet controller
Internal 3808 Bytes
Ethernet
controller
variables
Results
transfer
No Indirectly Firmware Ethernet /
USB card,
U4
No Removepower
from the
instrument for at
least 20 seconds.
USB client controller
(4 kBytes)
USB client
variables
Results
transfer
No Indirectly Firmware Ethernet /
USB card,
U3
No Remove power
from the
instrument for at
least 20 seconds.
2 PA4000 Declassification/Security Instructions

Clear and Sanitize Procedures
Table 2: Nonvolatile memory devices
Type and
minimum size Function
Type
of user
info
stored
Method of
modification
Data input
method Location
User
accessible To clear To sanitize
EEPROM,
128 kBytes
Calibration
constants
None Indirect via
firmware
Factory
configuration
Analog
module, U1
No Not applicable, does
not contain user
data or settings.
Clearing would
disable instrument
functionality.
Not applicable,
does not contain
user data or
settings. Sanitizing
would disable
instrument
functionality.
EEPROM,
(128 kBytes)
User
configuration
storage
User
config.
storage
Indirect via
firmware
User changing the
configuration of
the product
CPU Card, U8 No See instructions
below.
Not applicable.
Sanitizing would
disable instrument
functionality.
CPU internal flash
(512 kBytes)
Stores
operating
code
None Indirect via
firmware
Firmware upgrade
program
CPU Card, U3 No Not applicable, does
not contain user
data or settings.
Clearing would
disable instrument
functionality.
Not applicable.
Sanitizing would
disable instrument
functionality.
CPU external flash
(1 Mbyte)
Stores
operating
code
None Indirect via
firmware
Firmware upgrade
program
CPU Card, U4 No Not applicable, does
not contain user
data or settings.
Clearing would
disable instrument
functionality.
Not applicable.
Sanitizing would
disable instrument
functionality.
USB client
processor
(64 kBytes)
Stores
operating
code
None None Factory
programming
USB / No Not applicable, does
not contain user
data or settings.
Clearing would
disable instrument
functionality.
Not applicable.
Sanitizing would
disable instrument
functionality.
Ethernet controller
(128 kBytes)
Stores
operating
code
None None Factory
programming
CPU card No Not applicable, does
not contain user
data or settings.
Clearing would
disable instrument
functionality.
Not applicable.
Sanitizing would
disable instrument
functionality.
Secure User Memory
To secure the non-volatile memory, follow the Secure procedure below. In any
case, no measurement results are stored. Only instrument setup and calibration
may be are stored in memory inside the PA4000.
Secure To erase confidential data from your PA4000 power analyzer, perform the
following procedure. This procedure does not erase or change factory calibration
constants.
The following user settings need to be cleared as separate actions:
PA4000 Declassification/Security Instructions 3

Clear and Sanitize Procedures
Current configuration
User configurations 1 though 8
User Communications Settings (these are not reset by loading the default
configuration)
To reset the current configuration (used at power on).
1. Press the front panel MENU button.
2. Scroll down to User Configuration.
3. Select Load Default Configuration.
4. Wait for confirmation that the configuration has been loaded.
To reset configurations 1 through 8 to default.
1. First load the default configuration as detailed above.
2. Select Configuration 1 (the first configuration below Save To USB option).
3. Scroll down to Save Current Configuration and select this option (bottom
soft key).
4. When finished, select OK.
5. If the name of the configuration is not “Configuration 1”, then rename the
configuration.
6. Repeat steps 2 through 5 for configurations 2 through 8.
To clear the communication settings.
1. Press the front panel MENU button.
2. Scroll down to Interfaces.
3. In the RS232 menu, set the baud rate to the factory default of 38400.
4. In the GPIB menu set the address to the factory default of 5.
5. In the Ethernet IP Selection Method menu, select the factory default of Set
IP using DHCP.
6. In the Ethernet Static IP Setting menu, set the IP address to 192.168.2.255,
the Subnet mask to 255.255.255.0 and the Default Gateway to 192.168.2.1
(factory defaults).
4 PA4000 Declassification/Security Instructions