Products: R&S EMI Test Receiver ESL
Resolving Security Issues
When Working with the R&S®ESL in
Secure Areas
Based upon the user’s security requirements, this document describes the Rohde&Schwarz options
available to address the user’s EMI test receiver needs. It also covers the different memory types and
locations where user information can be stored in the EMI test receiver R&S
For secure environments, it describes an approach to physically remove the user data from the
EMI test receiver.
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ESL.
1171.6380.52-01 1 06-2008
Contents
R&S® ESL - Instrument Security
1 OVERVIEW 2
2 INSTRUMENT MODELS COVERED .............................................................................. 3
3 BATTERY INFORMATION .............................................................................................. 3
4 TYPES OF MEMORY IN THE R&S®ESL EMI TEST RECEIVER AND THEIR
SECURITY CONCERNS.................................................................................................. 3
5 INFORMATION STORAGE IN THE R&S®ESL EMI TEST RECEIVER ......................... 4
6 INFORMATION SECURITY IN HIGHLY SENSITIVE AREAS ........................................ 5
7 PERFORMING SERVICE, CALIBRATION AND MAINTENANCE ON THE R&S®ESL
EMI TEST RECEIVER ..................................................................................................... 5
8 PERFORMING FIRMWARE UPDATES AND BACKING-UP USER DATA IN
SENSITIVE AREAS ......................................................................................................... 6
9 SPECIAL CONSIDERATIONS FOR USB PORTS.......................................................... 7
10 ADDITIONAL INFORMATION ......................................................................................... 8
1 Overview
In many cases it is imperative that the R&S®ESL EMI test receiver be used
in a secured environment. Generally these highly secured environments will
not allow any test equipment to leave the area unless it can be proven that
no user information will leave with the test equipment. Security concerns
can arise when EMI test receivers need to leave a secured area to be
calibrated or serviced.
This document describes the types of memory and their usage in the R&S
ESL EMI test receiver. It also addresses methods of ensuring that no user
data will leave the secured area should the product be removed for
calibration or service needs.
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1171.6380.52-01 2 06-2008
R&S® ESL - Instrument Security
2 Instrument Models Covered
R&S EMI Test Receivers
R&S®ESL
ESL 3
ESL 6
3 Battery Information
There are no batteries in the R&S®ESL EMI test receiver other than the
one on the CPU board used to power the clock in the chipset.
4 Types of Memory in the R&S®ESL EMI Test Receiver and Their
Security Concerns
SDRAM
The R&S®ESL EMI test receiver has 1 GByte of SDRAM on the CPU
board. SDRAM is volatile memory and it loses its memory as soon as
power is removed. The SDRAM will be unreadable within one minute after
the power is removed from the instrument.
The SDRAM is not a security concern.
EEPROM
Each board assembly in the R&S®ESL EMI test receiver has one serial
EEPROM device. These devices hold 32 kBytes up to 1 MByte and contain
information related to the installed hardware, such as board serial number,
options, correction constants, etc. The EEPROM does not hold user data
nor can the user access the EEPROM storage.
The EEPROM is not a security concern.
FLASH
The CPU board of the R&S®ESL EMI test receiver has one 512 kByte flash
memory device which contains the BIOS. The Flash memory does not hold
user data nor can the user access the Flash memory.
The Flash memory is not a security concern.
1171.6380.52-01 3 06-2008
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