MTM400
MPEG Transport Stream Monitor
Declassification and Security Instructions
www.tektronix.com
071-2187-00 Rev A
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OR 97077
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Table of Contents
Preface....................................................................................................................iii
Clear and Sanitize Procedures.............................................................................. 1
Memory Devices................................................................................................. 1
Data Export Devices........................................................................................... 3
Troubleshooting ..................................................................................................... 5
How to Clear or Sanitize a Non-Functional Instrument ..................................... 5
How to Recover from Clearing or Removing the Instrument Memory.............. 5
MTM400 Declassification and Security Instructions i
Table of Contents
ii MTM400 Declassification and Security Instructions
Preface
This document helps customers with data security concerns to sanitize or remove
memory devices from the MTM400 MPEG Transport Stream Monitor.
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.
Supported Products
MTM400 MPEG Transport Stream Monitor.
Related Documents
The MTM400 MPEG Transport Stream Monitor Service Manual, Tektronix part
number 071-1225-xx, is available on the Tektronix Web site at
www.tektronix.com/manuals.
Terms
The following terms may be used in this document:
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. This refers to 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. 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.
MTM400 Declassification and Security Instructions iii
Preface
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 MTM400 Declassification and Security Instructions
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
User
input
RAM
256 MB
DDR RAM
256 MB
S DRAM
128 MB
SRAM
1152 KB
CAM
288 KB
RAM
256 MB
Function
Microprocessor
system memory
Transport traffic
queue
Microprocessor
system memory
Microprocessor
system memory
IP Traffic buffer No Written by
Microprocessor
system memory
User
modifiable?
No Written by
No Written by
No Written by
No Written by
No Written by
Data input
method
processor
system
FPGA
processor
system
processor
system
FPGA
processor
system
Location in
instrument
Power PC
board
GigE card Remove the power
GigE card Remove the power
GigE card Remove the power
GigE card Remove the power
RF interface
cards
To clear
Remove the power
source from the
instrument for at
least 20 seconds.
source from the
instrument for at
least 20 seconds.
source from the
instrument for at
least 20 seconds.
source from the
instrument for at
least 20 seconds.
source from the
instrument for at
least 20 seconds.
Remove the power
source from the
instrument for at
least 20 seconds.
To
sanitize
N/A
N/A
N/A
N/A
N/A
N/A
MTM400 Declassification and Security Instructions 1
Clear and Sanitize Procedures
Table 2: Nonvolatile Memory Devices (continued)
Type and
User input
NVRAM Stores
Flash
6 M x 8 bits
Flash
16 M x 8
bits
Flash
8 M x 8 bits
Function
instrument
user
configuration
Holds
instrument
firmware,
MAC, IP,
Serial and
License
numbers
Holds card
firmware and
IGMP
subscription
details
Holds FPGA
image
User
modifiable?
Yes Loading
Yes Firmware
Yes User input GigE
Yes User input GigE
Data input
method
configuration file
or by using the
user interface
operations and
user input
Location in
instrument
MTM400
processor
card
MTM400
processor
card
interface
card
interface
card
Clear NVRAM
To
clear
N/A Remove power
N/A Return to the
N/A Delete IGMP
N/A Return to the
To sanitize
and press NV
clear button for
10 seconds.
instrument to
Tektronix.
addresses in the
user interface
(See ‘Clear IGMP
Subscriptions’).
instrument to
Tektronix.
Use the following procedure to clear the nonvolatile RAM:
1. Remove power.
2. Remove the top cover.
3. Push the NVRAM clear button on the MTM400 Processor card for 10
seconds.
4. Replace the cover.
NOTE. Removing the instrument’s top cover and accessing the NRVRAM clear
button are described in the MTM400 Transport Stream Monitor User Manual,
Appendix A (Tektronix part number: 071-1224-xx).
2 MTM400 Declassification and Security Instructions
Clear and Sanitize Procedures
Clear IGMP Subscriptions (Gigabit Ethernet Interface card only)
Use the following procedure to clear the IGMP subscriptions.
1. Open the MTM400 user interface.
2. Open the Stream – Input Card screen.
3. Select the IGMP sessions display.
4. Select multi-IGMP mode.
5. For each address to be deleted, type the IP address in the IGMP delete box
and press Enter.
Recovering from NVRAM and IGMP subscription clear
To recover from the Clear NVRAM and Clear IGMP Subscription procedures,
follow the setup procedures described in the MTM400 Transport Stream Monitor
User Manual (Tektronix part number: 071-1224-xx).
Data Export Devices
The following table lists the data export devices in the standard instrument and
listed options:
Table 3: Media Storage / Data Export Disable
Type and minimum
size
LAN Ethernet connector Transfer
LAN Ethernet connector Transfer
ASI/SMPTE In/Out
connectors
ASI/SMPTE In/Out
connectors
RF input/output
connectors
Function
data
data
Transfer
data
Transfer
data
Transfer
data
User
modifiable?
N/A N/A MTM400 processor card N/A
N/A N/A GbE interface card N/A
N/A N/A MTM400 processor card N/A
N/A N/A Interface cards (all) N/A
N/A N/A RF Interface cards (QAM
Data
input
method
Location in instrument
BII, 8VSB, 8PSK, COFDM)
Process
to disable
N/A
MTM400 Declassification and Security Instructions 3
Clear and Sanitize Procedures
4 MTM400 Declassification and Security Instructions
Troubleshooting
How to Clear or Sanitize a Non-Functional Instrument
If your instrument is not functioning and you need to clear or sanitize it, proceed as
follows:
MTM400 Main Processor Card
Remove power and remove battery; this will clear any configuration information.
The MAC and IP addresses are held in an EPROM. If this needs to be sanitized,
the instrument must be returned to Tektronix.
NOTE. Removing the instrument’s top cover and access to the battery are
described in the MTM400 Transport Stream Monitor User Manual, Appendix A
(Tektronix part number: 071-1224-xx).
Gigabyte Ethernet Interface Card
This card stores the list of IGMP subscription addresses that are in use. If this card
needs to be sanitized, the instrument must be returned to Tektronix.
RF Interface Cards
The RF interface cards store immediate values in memory, for example, current
frequency. These values are lost when power is removed.
How to Recover from Clearing or Removing the Instrument Memory
Follow the procedures in the MTM400 Transport Stream Monitor User Manual
(Tektronix part number: 071-1224-xx) to set network, time, and license
information, and then reconfigure tests to your application.
MTM400 Declassification and Security Instructions 5
Troubleshooting
6 MTM400 Declassification and Security Instructions
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