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Field Testing for Active Ethernet Networks

This application note proposes a solution for active Ethernet testing from the installation and service turn-up phase to service-level agreement verification for Active Ethernet deployments.

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PMD vs. Mode Coupling

This application note provides an overview of the basic concepts of PMD and the impact that strong-mode and weakmode coupling have on PMD testing; the accuracy of test instruments will also be discuss...

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IPTV: Quality or Quantity?

This application note discusses the possibility to offer customers both quality and quantity services; it presents the VDSL2 technology that offers higher data rates.

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Measuring NEXT and FEXT

This application note explores effective approaches for measuring noise and used by service providers who are determined to ensure quality of service (QoS) to their customers.

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ROADMs and Network Evolution

This application note explores technologies driving the evolution to higher-bandwidth networks: the ROADM technology and the optical transport network (OTN) standard.

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The Fundamentals of an OTDR

This application note explores the fundamental OTDR principles that are key to understanding the specifications of this instrument.

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Wideband Testing

This application note explains how important it is to perform wideband testing to ensure quality of service (QoS) when delivering broadband services.

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Testing Jitter and Wander in the Field—Is it Necessary?

This application note discusses various aspects of jitter and wander—the theory, the causes, the effects they have on networks, and related field testing.

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Quality of Service: Key Concepts and Testing Needs

This application note introduces various concepts related to QoS and the testing needs for such mechanisms.

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Service Activation Made Easy

This application note covers the basics of service activation and explains how the service-activation scheme can be very different, depending on the FTTH network topology.

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