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E4990A/E4991B Security Feature
Rev. 2.0




October 2014
Copyright 2014 Keysight Technologies




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Contacting Keysight Sales and Service Offices
Assistance with test and measurements needs and information on finding local Keysight offices
are available on the internet at, http://www.keysight.com/find/assist. If you do not have access to
the internet, please contact your field engineer.

Note: In any correspondence or telephone conversations, refer to the signal generator by its
model number and full serial number. With this information, the Keysight representative can
determine whether your unit is still within its warranty period.




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Product Declassification and Security Product Name: Impedance Analyzer
Model Numbers: E4990A/E4991B

Product Declassification and Security
Model Number(s): E4990A/E4991B
Product Name: Impedance Analyzer
Product Family Name: Impedance Analyzer



This document describes instrument security features and the steps to declassify an instrument
through memory sanitization or removal.

Table of Contents
Terms and Definitions. ..........................................................4
Instrument Memory..............................................................5
Memory Clearing, Sanitization and/or Removal.............................6
User and Remote Interface Security ..........................................10




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Product Declassification and Security Product Name: Impedance Analyzer
Model Numbers: E4990A/E4991B

Terms and Definitions

Definitions:

Clearing