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ALSO CALLED: Wavelength-division Multiplexing, WDM, Coarse Wavelength Division Multiplexing, Wave Division Multiplexing, Coarse Wave Division Multiplexing
DEFINITION: Wavelength-division multiplexing (WDM) is a method of combining multiple signals on laser beams at various infared (IR) wavelengths for transmission along fiber optic media. Each laser is modulated by an independent set of signals. Wavelength-sensitive filters, the IR analog of visible-light color filters, are used at the receiving end.WDM is similar to frequency-division multiplexing (FDM). But instead  … 
Definition continues below.
CWDM Reports
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A Practical Approach to ITIL Adoption
sponsored by ServiceNow
EBOOK: The adoption of ITIL is widespread and tens of thousands of companies are already reaping its benefits. But, as with any process, there are a number of common ITIL adoption mistakes to avoid. Access this eBook to avoid the top 5 ITIL implementation mistakes and ensure the success of your efforts.
Posted: 12 Jul 2016 | Published: 12 Jul 2016


A reference architecture for the IoE
sponsored by
ANALYST REPORT: Analyst group Quocirca proposes a basic architecture to help organisations avoid the many pitfalls of embracing the internet of things (IoT).
Posted: 03 Oct 2016 | Published: 03 Oct 2016

A Roadmap for Transport Network Modernization
sponsored by Cisco Systems, Inc.
EBOOK: Today's transport network is suffering somewhat of an identity crisis. In this e-book discover the background and current state of metro transport networks and the challenges you're facing today and tomorrow as providers.
Posted: 04 Oct 2016 | Published: 31 Aug 2016

Cisco Systems, Inc.

A Shift to Remote IT Services Alleviates Support and Help Desk Headaches
sponsored by LogMeIn, Inc.
WHITE PAPER: This infographic identifies the diverse demands of the end user, as well as the multifaceted world of modern computing, and how you can manage these challenges through remote IT support services.
Posted: 05 Aug 2016 | Published: 05 Aug 2016

LogMeIn, Inc.

A Structured Design Approach to Business Process Automation & Custom Software Development
sponsored by Red Hat
WHITE PAPER: Discover how to modernize business automation by capitalizing on advances in software development infrastructure, and incorporate them into a new structured, 6-step design approach that eliminates additional risk.
Posted: 21 Jul 2016 | Published: 21 Jul 2016

Red Hat

A More Elastic Enterprise Cloud Network
sponsored by Citrix
WHITE PAPER: The best enterprise cloud is elastic. Find out how you can get on-demand scalability and pay-as-you-grow performance.
Posted: 10 Mar 2015 | Published: 10 Mar 2015

TOPICS:  IT Management

A New Approach to Optimize IT and Solve the Application Visibility Challenge
sponsored by Citrix
WHITE PAPER: Managing your application performances is a task all IT departments face, and in order to ensure optimal speeds, it is crucial to monitor your network. This guide explores one company's solution to these challenges and how they can help you gain greater network visibility.
Posted: 31 Dec 2013 | Published: 31 Dec 2013


A New Charter for HR
sponsored by Jive Software
WHITE PAPER: In this white paper, Stowe Boyd of GigaOM Research explores:The current state of the workforce: What is the new normal? How HR and technology leaders can work together to responsibly invest in social technologies? What HR must become to embrace the modern workplace and earn a seat at the executive table.
Posted: 14 Feb 2014 | Published: 14 Feb 2014

Jive Software

A New Direction for IT User Support: Enabling An Omnichannel Experience in the Cognitive Era
sponsored by IBM
WHITE PAPER: This white paper describes omnichannel IT support, and why it has become critical for a superior personalized user experience. Explore ways you can begin incorporating this more cognitive strategy into your IT support organizations.
Posted: 02 Sep 2016 | Published: 29 Feb 2016


A New Tune for Telephony? What MS Lync Really Means
sponsored by
EBOOK: This white paper provides answers to a number of major questions surrounding Microsoft Lync. Read now to decide whether Lync is the best solution for your company's communications needs.
Posted: 10 Jul 2014 | Published: 10 Jul 2014

A Powerful Defense Against Denial of Service Attacks
sponsored by Citrix
WHITE PAPER: DoS attacks have grown, and now they target more businesses than ever. See how you can get a robust, affordable defense.
Posted: 10 Mar 2015 | Published: 10 Mar 2015

TOPICS:  IT Management

A Practical Guide for Moving to 10GbE
sponsored by Dell, Inc.
WHITE PAPER: The data center landscape for many organizations is constantly changing, leading to challenges for IT professionals. This brief guide highlights how 10 gigabit Ethernet (10GbE) technology can be a solution for some of your IT concerns.
Posted: 19 Nov 2013 | Published: 19 Nov 2013

Dell, Inc.

A Quantum Leap Forward for Oracle
sponsored by Dell EMC
WHITE PAPER: Switch to EMC DSSD D5 for faster database environments, improved agility, simplified operations and vendor flexibility.
Posted: 12 Sep 2016 | Published: 12 Sep 2016

TOPICS:  IT Management
Dell EMC

A SaaS-First Approach to Application Porfolio Management
sponsored by BMC Software, Inc.
WHITE PAPER: This white paper discusses the virtues of SaaS for business operations and where the technology is headed.
Posted: 10 Oct 2013 | Published: 13 Oct 2011

BMC Software, Inc.

A Simple Building Block for Software-Defined Data Center
sponsored by VMware
WHITE PAPER: Simplify your entire IT infrastructure lifecycle with EVO:RAIL
Posted: 07 Jul 2015 | Published: 07 Jul 2015

TOPICS:  IT Management

A Strategy for Ideal Branch Converged Infrastructure
sponsored by Riverbed Technology, Inc.
WHITE PAPER: Learn how to handle siloed IT functions with an end-to-end strategy that delivers on IT priorities today and tomorrow.
Posted: 02 Dec 2015 | Published: 02 Dec 2015

TOPICS:  IT Management
Riverbed Technology, Inc.

A Superior Hardware Platform for Server Virtualization
sponsored by Intel Corporation
TECHNICAL ARTICLE: Server virtualization is helping IT organizations improve data center productivity in fundamental ways. To gain the full value of virtualization, you need servers that are built to handle the heavy and ever-changing demands of a virtualized and consolidated computing environment. Read on to learn more . . .
Posted: 03 Sep 2009 | Published: 03 Sep 2009

Intel Corporation

A Superior Hardware Platform for Server Virtualization - Improving Data Center Flexibility, Performance and TCO with the Intel® Xeon® Processor 5500 Series
sponsored by Insight & Intel
PRODUCT OVERVIEW: To gain full value of virtualization, you need servers that are built to handle the heavy and ever-changing demands of a virtualized and consolidated computing environment. To help you get maximum benefits from virtualization, Intel has built a better physical server platform with unique hardware-assist features to enhance the virtual data center.
Posted: 06 Oct 2009 | Published: 06 Oct 2009

Insight & Intel

A Systems Approach to Networking Improves Availability, Lowers TCO
sponsored by Cisco Systems, Inc.
ANALYST REPORT: This report examines the drivers of network change, defines a systems approach to networking and then details the strategy used by Cisco, the market leader in enterprise networking, to deliver on this vision.
Posted: 27 May 2010 | Published: 01 Nov 2009

Cisco Systems, Inc.

A Tale of Two Networks - How the Right Network Monitoring System can Save the Day
sponsored by Dell Software
WHITE PAPER: In this Quest white paper, read about real-life network monitoring challenges and how they play out in two scenarios – one with, and one without a network monitoring solution in place. Read it today.
Posted: 08 May 2012 | Published: 08 May 2012

Dell Software

A Total-Cost-of-Ownership Comparison for Unified Communications and Collaboration
sponsored by Cisco
WHITE PAPER: This guide compares the total-cost-of-ownership of various unified communications and collaboration platforms and explains how collaboration is critical to the success of the modern business.
Posted: 14 Apr 2014 | Published: 30 Sep 2013


A Unified Approach to Managing the Virtual Infrastructure
sponsored by Forsythe
WHITE PAPER: Managing the virtual infrastructure end-to-end is becoming more challenging as virtual environments continue to grow and more data center elements meld into the "cloud". This whitepaper will discuss the push for continued virtualization and the "cloud", and present you with questions that will help you create the best organizational strategy.
Posted: 23 Nov 2009 | Published: 23 Nov 2009


A Unified View of the Enterprise Network for Proactive Security
sponsored by Fortinet, Inc.
WHITE PAPER: Trends in mobility and cloud-host enterprise applications are prompting enterprises to reconsider how they deploy enterprise networks. Find out how these trends are changing approaches to network management, the need for more unified, proactive security and the challenges this all presents.
Posted: 08 Jun 2016 | Published: 31 Mar 2016

Fortinet, Inc.

A Web-Based Workspace for the Mobile Workforce
sponsored by Lenovo Software
WHITE PAPER: Unified Workspace is designed to solve the problem of productivity for the mobile workforce. Learn how you can leverage this software to increase productivity, decrease costs, and ease the load on IT.
Posted: 14 Jun 2016 | Published: 14 Jun 2016

Lenovo Software

A Whirlwind Tour of Wireless Vulnerabilities
sponsored by AirMagnet
PRESENTATION TRANSCRIPT: This white paper discusses the steps you must take to ensure that your wireless network is security and how to guard against vulnerabilities.
Posted: 07 Sep 2011 | Published: 07 Sep 2011

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CWDM DEFINITION (continued): …  of taking place at radio frequencies (RF), WDM is done in the IR portion of the electromagnetic (EM) spectrum. Each IR channel carries several RF signals combined by means of FDM or time-division multiplexing (TDM). Each multiplexed IR channel is separated, or demultiplexed, into the original signals at the destination. Using FDM or TDM in each IR channel in combination with WDM of several IR channels, data in different formats and at different speeds can be transmitted simultaneously on a single fiber.In early WDM systems, there were two IR channels per fiber. At the destination, the IR channels … 
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