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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 White Papers (View All Report Types)
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5 Data Quality Problems in Every CMDB
sponsored by BDNA
WHITE PAPER: Explore why clean data is essential for your configuration management database (CMDB). Uncover the top 5 data quality problems in every CMDB and how you can address these challenges.
Posted: 29 Apr 2016 | Published: 31 Dec 2015


5 Key Business and Technology Needs Being Met by SDN and NFV
sponsored by MASERGY
WHITE PAPER: As the business landscape transforms, IT departments need to understand how emerging technologies like software defined networking and network function virtualization can meet business needs. Access this white paper to discover 5 key business and technology challenges that are being met by SDN and NFV.
Posted: 16 Mar 2016 | Published: 02 Mar 2016


5 Key Initiatives to Optimize Service Delivery
sponsored by ServiceNow
WHITE PAPER: To optimize the productivity and happiness of the workforce, it's critical that they see the service desk as effective, pleasant, and easy to work with. This Forrester resource reveals 5 key initiatives that can maximize the effectiveness of your service desk.
Posted: 11 Mar 2016 | Published: 18 Sep 2015


5 Reasons Why Enterprises are Moving to Broadband their WAN
sponsored by Silver Peak
WHITE PAPER: In the new world of "connect anywhere to anything", how will your MPLS solution stand up to the flexibility, agility, insight and control at Cloud speed? This short paper discusses the 5 reasons why enterprises are radically rethinking their WAN with a move to broadband.
Posted: 20 Jan 2016 | Published: 20 Jan 2016

Silver Peak

5 Steps to Pricing Managed Services
sponsored by Autotask Corporation
WHITE PAPER: Harness a customizable framework for ITSPs pricing for predictable revenue streams, more efficient resource allocation, and the ability to quickly scale to add new clients and manage more devices without adding resources.
Posted: 06 Jul 2016 | Published: 06 Jul 2016

Autotask Corporation

5 Virtues of Virtualization in Healthcare IT
sponsored by Commvault
WHITE PAPER: Access this white paper to see the 5 virtues of virtualization in healthcare IT, and what you can do to stay ahead of the curve.
Posted: 07 Dec 2015 | Published: 07 Dec 2015


5 Ways To Reduce Network Latency
sponsored by Dyn
WHITE PAPER: Learn 5 ways to reduce network latency and ensure that customers are not kept waiting. By improving your DNS you can prevent 79% of from avoiding your website next time.
Posted: 28 Sep 2016 | Published: 28 Sep 2016


5 Ways to Save on IBM Licensing
sponsored by Snow Software
WHITE PAPER: This white paper explores how to put an effective software asset management strategy in place that's tailored to the complexities of IBM-specific processes and products. Access now to discover how you can increase the efficiency of entitlement management, licensing, and more.
Posted: 10 Oct 2016 | Published: 16 Mar 2016

Snow Software

6 Steps to Software-defined Data Center Adoption
sponsored by Logicalis
WHITE PAPER: What steps should you take to realize the software-defined data center model? Find out six steps for your software-defined data center adoption and how you can enable automation today.
Posted: 18 Oct 2016 | Published: 18 Oct 2016


5 Key Design Principles for Security Professionals
sponsored by Gigamon
WHITE PAPER: Learn the best ways to ensure your design allows you to monitor today's increasingly complex networks and critical data.
Posted: 04 Nov 2015 | Published: 04 Nov 2015

TOPICS:  IT Management

5 Key Virtualization Management Challenges - and How to Overcome Them
sponsored by Hewlett Packard Enterprise
WHITE PAPER: Virtualization introduces fundamental changes to IT, and adds significant management challenges. Read this informative white paper written by Enterprise Management Associates to learn what these challenges are as well as some of the solutions and strategies used to deal with them.
Posted: 26 Jun 2009 | Published: 01 Mar 2009

Hewlett Packard Enterprise

5 Must-Haves for Highly Manageable Infrastructure
sponsored by Dell, Inc. and Intel®
WHITE PAPER: Highly manageable infrastructure improves productivity and lowers TCO. Discover 5 tips for evaluating IT architecture.
Posted: 11 Mar 2015 | Published: 24 Nov 2014

TOPICS:  IT Management
Dell, Inc. and Intel®

5 reasons why end user experience management is not APM
sponsored by Aternity
WHITE PAPER: This guide explores the benefits of application performance management can benefit your network and end-user experience.
Posted: 09 May 2014 | Published: 31 Dec 2013


5 reasons why your data center is everywhere
WHITE PAPER: In the following white paper, uncover the inherent nature of modern applications and learn how you must address your data center infrastructure to ensure your application operations are as effective and valuable as they should be. Access now to learn more.
Posted: 08 Oct 2015 | Published: 08 Oct 2015


5 Secrets to SQL Server Availability
sponsored by Marathon Technologies
WHITE PAPER: The following five secrets to affordable SQL availability will help you to implement a SQL environment with little or no downtime, zero data loss, and no added IT complexity.
Posted: 28 Sep 2009 | Published: 28 Sep 2009

Marathon Technologies

5 Signs It’s Time for a Data Center: Considerations for SMBs
sponsored by Dell, Inc. and Intel®
WHITE PAPER: Explore this resource to learn about the five signs that your small or medium business might need a data center.
Posted: 30 May 2014 | Published: 21 Jun 2013

Dell, Inc. and Intel®

5 steps to aligning IT to the needs of your organization
WHITE PAPER: Read this white paper to uncover the five steps you can take to align your IT to the needs of your organization. Inside, uncover how to develop a vision, leverage cloud to facilitate alignment, and much more.
Posted: 09 Oct 2015 | Published: 09 Oct 2015


5 tips to ensure that big data has a big impact on your organization
sponsored by Cisco Systems, Inc.
WHITE PAPER: Access this white paper to learn five tips to get more actionable insight from your data and find out how you can ensure that big data has a big impact on your business.
Posted: 04 Dec 2015 | Published: 04 Dec 2015

Cisco Systems, Inc.

5 Tips to Improve Sales Performance
sponsored by Oracle Corporation
WHITE PAPER: From strategies to analysis, learn what top companies are doing in this modern best practices guide.
Posted: 28 Jan 2016 | Published: 28 Jan 2016

TOPICS:  IT Management
Oracle Corporation

5 Ways Integrated Infrastructure is at the Center of Fast IT
WHITE PAPER: In the following white paper, uncover the top five characteristics a data center must have in order to capitalize on the new technology coming into the market. Access now and learn about the importance of integrated infrastructure management, convergence, and more.
Posted: 12 Oct 2015 | Published: 12 Oct 2015


5 Ways to Create a Successful Innovation Program
sponsored by Spigit
WHITE PAPER: What exactly does it take to create sustainable innovation program, driving impactful results to both the business side and IT? Learn how to implement a successful crowdsourced innovation program with the 5 methods outlined in this white paper.
Posted: 23 Jun 2016 | Published: 23 Jun 2016


5 ways to get more from your cloud
WHITE PAPER: The following white paper offers readers insight into five ways to get more from your cloud.
Posted: 08 Oct 2015 | Published: 08 Oct 2015


6 Questions to Ask SaaS E-Commerce Vendors
sponsored by Oracle Corporation
WHITE PAPER: Don't just look at bells and whistles. Learn strategic questions to ask that ensure you find the best partner in SaaS.
Posted: 28 Jan 2016 | Published: 28 Jan 2016

TOPICS:  IT Management
Oracle Corporation

6 Reasons to Boot Enterprise Servers From Enhanced SSD
sponsored by Micron Technology
WHITE PAPER: Choosing between HDD and SSD as you build your server? Find out how SSD creates better resiliency, lower costs and more.
Posted: 01 Dec 2015 | Published: 01 Dec 2015

TOPICS:  IT Management
Micron Technology

6 Tips for Building a Future-Ready Infrastructure
sponsored by Dell, Inc. and Intel®
WHITE PAPER: Tomorrow's workloads will be even heavier than today's. Learn how to future-proof your server to scale as demand grows.
Posted: 11 Mar 2015 | Published: 31 Jan 2015

TOPICS:  IT Management
Dell, Inc. and Intel®
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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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