R&S ZPH Manual de usuario

R&S®ZPH

Cable and Antenna Analyzer

Instrument Security Procedures

Version 01

1178939002

(;Üëè2)

Contents

R&S®ZPH

2Instrument Security Procedures 1178.9390.02 ─ 01

Contents

1 Overview................................................................................................. 2

2 Instrument Models Covered..................................................................2

3 Security Terms and Definitions............................................................ 3

4 Types of Memory and Information Storage in the R&S ZPH..............3

5 Instrument Declassification.................................................................. 6

1 Overview

In many cases, it is imperative that the R&S ZPH Cable and Antenna Analyzers are

used in a secured environment. Generally these highly secured environments do not

allow any test equipment to leave the area unless it can be proven that no user infor-

mation leaves with the test equipment. Security concerns can arise when devices need

to leave a secured area e.g. to be calibrated or serviced.

This document describes the types of memory and their usage in the R&S ZPH. It pro-

vides a statement regarding the volatility of all memory types and specifies the steps

required to declassify an instrument through memory clearing or sanitization proce-

dures. These sanitization procedures are designed for customers who need to meet

the requirements specified by the US Defense Security Service (DSS).

2 Instrument Models Covered

Table 2-1: Cable and Antenna Analyzer models

Product name Order number

R&S ZPH 1321.1211.02

R&S ZPH 1321.1211.12

R&S ZPH 1321.1211.52, equivalent to 1321.1211.02

Security Terms and Definitions

R&S®ZPH

3Instrument Security Procedures 1178.9390.02 ─ 01

3 Security Terms and Definitions

Clearing

The term "clearing" is defined in Section 8-301a of DoD 5220.22-M, "National Industrial

Security Program Operating Manual (NISPOM)". Clearing is the process of eradicating

the data on media so that the data can no longer be retrieved using the standard inter-

faces on the instrument. Therefore, clearing is typically used when the instrument is to

remain in an environment with an acceptable level of protection.

Sanitization

The term "sanitization" is defined in Section 8-301b of DoD 5220.22-M, "National

Industrial Security Program Operating Manual (NISPOM)". Sanitization is the process

of removing or eradicating stored data so that the data cannot be recovered using any

known technology. Instrument sanitization is typically required when an instrument is

moved from a secure to a non-secure environment, such as when it is returned for ser-

vice of calibration.

The memory sanitization procedures described in this document are designed for cus-

tomers who need to meet the requirements specified by the US Defense Security Ser-

vice (DSS). These requirements are specified in the "Clearing and Sanitization Matrix"

in Section 14.1.16 of the ISFO "Manual for the Certification and Accreditation of Classi-

fied Systems under the NISPOM".

Instrument declassification

The term "instrument declassification" refers to procedures that must be undertaken

before an instrument can be removed from a secure environment, for example when

the instrument is returned for calibration. Declassification procedures include memory

sanitization or memory removal, or both. The declassification procedures described in

this document are designed to meet the requirements specified in DoD 5220.22-M,

"National Industrial Security Program Operating Manual (NISPOM)", Chapter 8.

4 Types of Memory and Information Storage

in the R&S ZPH

The R&S ZPH Cable and Antenna Analyzer contains various memory components.

The following table provides an overview of the memory components that are part of

your instrument. For a detailed description regarding type, size, usage and location,

refer to the subsequent sections.

Types of Memory and Information Storage in the R&S ZPH

R&S®ZPH

4Instrument Security Procedures 1178.9390.02 ─ 01

Memory type Size Content Volatility User

Data

Sanitization

procedure

SDRAM 512 Mbyte Temporary information storage

for operating system and

instrument firmware

Volatile Yes Turn off instru-

ment power

Flash (µC

internal)

32 kbyte Power-up / Power-down firm-

ware

Non-volatile No None required

SRAM (µC

internal)

4 kbyte Temporary information storage

for Power-up / Power-down

firmware

Volatile No Turn off instru-

ment power

Flash 128 Mbyte ●Operating System

●Instrument firmware

●Boot code

●Calibration correction

data, product options and

serial number

●User data and instrument

settings

Non-volatile Yes "Sanitize inter-

nal memory"

procedure

(see "Flash"

on page 5)

4.1 Volatile Memory

The volatile memory in the instrument does not have battery backup. It loses its con-

tents as soon as power is removed from the instrument. The volatile memory is not a

security concern.

Removing power from this memory meets the memory sanitization requirements speci-

fied in the "Clearing and Sanitization Matrix" in Section 5.2.5.5.5 of the ISFO Process

Manual for the Certification and Accreditation of Classified Systems under the NIS-

POM.

SDRAM

The SDRAM on the CPU board has a size of 512 Mbyte and contains temporary infor-

mation storage for operating system and instrument firmware. The SDRAM loses its

memory as soon as power is removed.

Sanitization procedure: Turn off instrument power.

SRAM (µC)

The SRAM of the µController has a size of 4 kbyte and contains temporary information

storage for Power-up / Power-down firmware. The SRAM loses its memory as soon as

power is removed.

Sanitization procedure: Turn off instrument power

Volatile Memory

Types of Memory and Information Storage in the R&S ZPH

R&S®ZPH

5Instrument Security Procedures 1178.9390.02 ─ 01

4.2 Non-Volatile Memory

The R&S ZPH contains various non-volatile memories. Out of these, only the internal

Flash memory contains user data as well as instrument configuration. The Flash mem-

ory can be sanitized via "Sanitize internal memory" procedure.

All non-volatile memories of the R&S ZPH are not a security concern.

Flash (µC)

The µController internal flash memory has a size of 32 kbyte and contains the µCon-

troller firmware for the Power-up / Power-down sequence. The flash does not hold user

data nor can the user access the flash storage.

Sanitization procedure: None required (no user data)

Flash

The flash memory has a size of 128 Mbyte of storage. It contains the boot code, oper-

ating system and instrument firmware, calibration correction data of product options

and serial number. Furthermore user data and instrument settings are stored here.

Figure 4-1: Logical sections of the Flash memory

The Flash memory is logically divided into three sections:

●Boot Code / Product Options / Calibration Correction Data / Serial Number:

The 11 Mbyte memory section contains the boot code, the product options, the fac-

tory calibration correction data and the instrument serial number. This section is ini-

tialized during production and can be updated in case of firmware update and

option installation. It cannot be accessed by the user and is not modified during

instrument operation.

●Operating System / Firmware:

The 97 Mbyte memory section contains the operating system and the instrument

firmware. This section is initialized during production and can be updated in case of

firmware update. It cannot be accessed by the user and is not modified during

instrument operation.

●User Data / Instrument Settings:

The 20 Mbyte memory section contains the user data and automatically or man-

ually saved instrument settings.

The R&S ZPH provides a sanitizing procedure that ensures that user data is irretrieva-

bly removed from the instrument.

Sanitization procedure: "Sanitize internal memory" procedure

Non-Volatile Memory

Instrument Declassification

R&S®ZPH

6Instrument Security Procedures 1178.9390.02 ─ 01

The sanitizing procedure is part of the instruments maintenance system which can be

accessed by pressing the front panel buttons [PRESET] and softkey [5] during power-

on.

After activating the sanitizing procedure, the following steps occur:

●A full sector erase command as per manufacturer data sheet is applied to each

sector of the instrument settings and user data section. This explicitly includes sec-

tors which might be declared as defect.

●Every addressable location of the instrument settings and user data section is

overwritten by a single character.

●Again, a full sector erase command as per manufacturer data sheet is applied to

each sector of the instrument settings and user data section, including defect sec-

tors.

The "Sanitize internal memory" procedure meets the memory sanitization requirements

specified in the "Clearing and Sanitization Matrix" in Section 14.1.16 of the ISFO "Man-

ual for the Certification and Accreditation of Classified Systems under the NISPOM".

5 Instrument Declassification

Firmware greater or equal 1.30 is required for the instrument declassification.

Before you can remove the R&S ZPH Cable and Antenna Analyzer from a secured

area (for example to perform service or calibration), all classified user data needs to be

removed. You can declassify the R&S ZPH as follows:

1. Turn off the R&S ZPH. This will sanitize the volatile memory.

2. To sanitize the internal Flash memory, perform the following steps:

a) Make sure, that no USB mass memory device is connected.

b) Press the front panel buttons [PRESET] and softkey [5] and hold them while

switching on the instrument again.

After a few seconds, the sanitizing procedure starts.

Sanitizing is indicated by the message "Secure Formatting Flash, please wait!" on

the instrument's screen. The sanitizing procedure takes approximately 8 minutes.

Afterwards, the instrument reboots. Since permanent adjustment values are not loca-

ted in instrument settings and user data section of the flash, the validity of the

R&S ZPH Cable and Antenna Analyzer’s calibration is maintained throughout the sani-

tization.

Following these steps removes all user data from the R&S ZPH Cable and Antenna

Analyzer. The instrument can now leave the secured area.

Instrument Declassification

R&S®ZPH

7Instrument Security Procedures 1178.9390.02 ─ 01

These declassification procedures meet the needs of customers working in secured

areas.

Validity of instrument calibration after declassification

The calibration makes sure that measurements comply to government standards.

Rohde & Schwarz recommends that you follow the calibration cycle suggested for your

instrument.

The flash is the only memory type used to hold permanent adjustment values required

to maintain the validity of the R&S ZPH's calibration.

Since only the flash instrument settings and user data section is erased during sani-

tization, performing the declassification procedure does not affect the validity of the

instrument’s calibration.

Mühldorfstr. 15, 81671 München, Germany

Phone: +49 89 41 29 - 0

Fax: +49 89 41 29 12 164

Email: [email protected]

Internet: www.rohde-schwarz.com

Subject to change – Data without tolerance limits is not binding.

R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.

Trade names are trademarks of the owners.

Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g.

R&S®SGS is indicated as R&S SGS.

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