Tektronix WFM6120 Istruzioni di installazione e manutenzione

WFM6120, WFM7020, and WFM7120 Waveform Monitors

Declassiﬁcation and Security

Instructions

www.tektronix.com

071-2295-00

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Table of Contents

Preface.............................................................................................................. iii

Clear and Sanitize Procedures............ .............. .............................................. ............. 1

Memory Devices............................................................................................... 1

Data Export Devices........................................................................................... 4

Troubleshooting..................................................................................................... 5

How to Clear or Sanitize a Non-Functional Instrument .............. .......... .............. ............. 5

How to Recover from Clearing or Removing the Instrument’s Memory................................ 5

WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security i

Table of Contents

ii WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security

Preface

This document helps customers with data security concerns to sanitize or remove

memory devices from the WFM6120, WFM7020, and WFM7120 Waveform

Monitors.

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 data output devices. The instructions also tell how to declassify an

instrument that is not functioning.

Products The following Tektronix products are covered by this document:

WFM6120 (Options CPS, EYE, PHY, AD, BAS, PER, ALY, AVD, DAT)

WFM7020 (Options HD, CPS, AD, DL, BAS, PER, ALY)

WFM7120 (Options HD, CPS, EYE, PHY, AD, DDE, DL, SIM, BAS, PER,

ALY, AVD, DAT)

Related Documents WFM6120, WFM7020, and WFM7120 Waveform Monitor Service Manual

WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security 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.

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 press a rear-panel OFF switch or remove the

power source from the instrument.

Remove. Thisisaphysicalmeanstoclearthedatabyremovingthememory

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. This is equivalent to sanitize.

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 WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security

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

Type and

minimum size Function

User

modiﬁable1

Data input

method Location To clear To sanitize

FPGA 1.3 K Audio

measurement

No Programmed

by onboard

ﬂash memory

Plugs into optional

Digital Audio board, IC8

on Dolby Audio board

None Remove the power

source from the

instrument for at

least 20 seconds

FPGA 920 Kb Audio

measurement

No Programmed

by onboard

serial

EEPROM

U521 on Audio board None Remove the power

source from the

instrument for at

least 20 seconds

FPGA 1.9 Mb Mapper#1 No Programmed

by onboard

ﬂash memory

U652 on Main board None Remove the power

source from the

instrument for at

least 20 seconds

SRAM 512 K X18 Mapper#1 RAM No Static

memory

for mapper

FPGA

U742, U751 on Main

board

None Remove the power

source from the

instrument for at

least 20 seconds

SDRAM 16 M X 16 Mapper#1 RAM

FPGA

Yes User can

initiate

capture to this

memory

U752 on Main board None Remove the power

source from the

instrument for at

least 20 seconds

FPGA 1.9 Mb Mapper#2No Programmed

by onboard

ﬂash memory

U631 on Main board None Remove the power

source from the

instrument for at

least 20 seconds

SRAM 512 K X 18 Mapper#2 RAM No Static

memory

for mapper

FPGA

U723, U743 on Main

board

None Remove the power

source from the

instrument for at

least 20 seconds

SDRAM 16 M X 16 SDRAM for

Mapper#2 FPGA

Yes User can

initiate

capture to this

memory

U731 on Main board None Remove the power

sourcefromthe

instrument for at

least 20 seconds

FPGA 1.9 Mb Rasterizer No Programmed

by onboard

ﬂash memory

U641 on Main board None Remove the power

source from the

instrument for at

least 20 seconds

SDRAM 16 M X 16 Rasterizer

SDRAM

Yes User can

initiate

capturetothis

memory

U651, U661 on Main

board

None Remove the power

source from the

instrument for at

least 20 seconds

WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security 1

Clear and Sanitize Procedures

Table 1: Volatile Memory Devices, (cont.)

Type and

minimum size Function

User

modiﬁable1

Data input

method Location To clear To sanitize

SDRAM 16 M X 16 CPU RAM No CPU access U422, U423, U521,

U522 on Main board

None Remove the power

source from the

instrument for at

least 20 seconds

SRAM 256 K X 16 PLD RAM No PLD access U511, U513, U512,

U514 on Main board

None Remove the power

source from the

instrument for at

least 20 seconds

1During normal instrument operation.

Table 2: Nonvolatile Memory Devices

Type and

minimum size Function

User

modiﬁable1

Data input

method Location To clear To sanitize

Flash Memory

4Mb

Audio

measurement

No Programmed

by software

during software

upgrade

Plugs into optional Digital

Audio board, IC9 on Dolby

Audio board

None Reload the

system software

per the loading

instructions

Serial EEPROM

256 X 8

Stores audio

calibration

coefﬁcients

No Programmed

during

calibration

U421 on Analog Audio

board

Recalibrate Audio None

Serial EEPROM

256 X 8

Stores Eye

calibration

coefﬁcients

No Programmed

during

calibration

U343 on Eye board Recalibrate Eye None

Serial EEPROM

256 X 8

Stores Composite

calibration

coefﬁcients

No Programmed

during

calibration

U12 on Composite board Recalibrate Composite None

Flash Memory

512 M X 16

Loads FPGAs on

power up

Contains

instrument SW,

network access

parameters, and

user-deﬁned

presets

Yes Programmed

by software

during software

upgrade

U311, U313 on Main

board

See

Clear Presets

Procedure and Clear

IP and SNMP Address

Fields Procedure

None

PLD 8 Kb Display controller No Programmed by

ﬂash memory

during power

U413 on Main board None None

Real Time Clock Stores time set by

user

Yes UI U933 on Main board Set to GMT Set to GMT

Serial EPROM Diagnostic logs,

Main board Pix

Mon calibration,

and factory only

Looping diagnostic

mode control

No Programmed by

software during

calibration and

diagnostics

U445 on Main board See Clear Diagnostic

Log Procedure.

Recalibrate Pix mon

to overwrite existing

values.

None

2 WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security

Clear and Sanitize Procedures

Table 2: Nonvolatile Memory Devices, (cont.)

Type and

minimum size Function

User

modiﬁable 1

Data input

method Location To clear To sanitize

Serial Flash Future expansion No Tested on

power up

Not used

U432 on Main board None None

Serial EEPROM MAC address No Set at factory U221 on Main board None None

1During normal instrument operation.

Clear Presets Procedure 1. Press and hold the PRESET button to display the preset conﬁguration menu.

Then select Recall Preset >Factory Preset >SEL. This restores the presets

to the factory state.

2. Press and hold the PRESET button. Then select Save Preset >Select Group

A. For all presets that are not empty “<e>”, select Save and then press SEL

to overwrite that preset with the factory settings.

3. Check each group and overwrite presets that are not empty as described in

the previous step.

4. Navigate to the top level menu and select Rename Preset. Rename all named

groups and presets with the label “Default”.

Clear Diagnostic Log

Procedure

1. Press the CONFIG button. Then press Utilities >View Diagnostic Log.

Press SEL to display the log.

2. Press >until the box by “Erase Log” is highlighted. Then press SEL to

remove all entries in the diagnostic log.

3. Press >until the box by “Exit” is highlighted. Then press SEL to exit the

log display.

4. Press the CONFIG buttontoexittheconﬁguration menu.

Clear IP and SNMP

Address Fields Procedure

1. Press the CONFIG button. Then select Network Settings.

2. Set IP ConﬁgModeto Manual to display the IP address.

3. Navigate toIP Address. Then press >to enter the edit mode. Enter

“000.000.000.000” for the IP address.

4. Repeat Step 3 for the Subnet Mask, Gateway Address, and SNMP Trap

Address 1 through SNMP Trap Address 4.

5. Press the CONFIG buttontoexittheconﬁguration menu.

WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security 3

Clear and Sanitize Procedures

Data Export Devices

The following table lists the data export devices in the standard instrument and

listed options. Detailed procedures to disable these devices, if any, are shown

following the table.

Table 3: Data Export Devices

Type and

minimum

size Function

User

modiﬁable 1Data input method Location To disable

Ethernet Communications Yes Standard Ethernet

protocol

Rear of instrument See Disable Ethernet Access Procedure

USB Data storage Yes Standard USB protocol Front of instrument None

1During normal instrument operation.

Disable Ethernet Access

Procedure

1. Press the CONFIG button. Then select Network Settings.

2. Navigate to the Web Enable and set it to Off.

3. Press the CONFIG buttontoexittheconﬁguration menu.

Disable SNMP Access

Procedure

1. Press the CONFIG button. Then select Network Settings.

2. Navigate to the Web Enable and set it to Off.

3. Navigate to SNMP Enable and set it to Off.

4. Navigate to SNMP Trap Enable and set it to Off.

5. Press the CONFIG buttontoexittheconﬁguration menu.

Enable Ethernet and SNMP

Access Procedure

To enable Ethernet and SNMP access, use the same procedures you would use to

disable these devices, but select On to enable each device.

4 WFM6120, WFM7020, and WFM7120 Declassiﬁcation and Security

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