HTB1z3ZQJXXXXXccXpXXq6xXFXXXM/Fiber-optic-interferometer-for-fiber-patch-cord.jpg_350x350.jpg' alt='Optical Patch Cord Testing' title='Optical Patch Cord Testing' />Patch Cord Types and Their Impact on the Network. Data centers and the networks they support have grown to be an integral part of every business. The software applications that keep mission critical operations up and running in highly redundant, 2. Structured cabling is the foundation that supports data centers. Although structured cabling isnt as sexy as diesel driven UPS systems or adiabatic cooling systems, it plays a huge role in supporting the cloud. Optical Patch Cord Testing On Fluke' title='Optical Patch Cord Testing On Fluke' />One important component of structured cabling that is often overlooked patch cords. Oftentimes, patch cords are purchased haphazardly and installed at the last minute. But the right patch cord type can improve the performance of your network. The proper design, specification, manufacturing, installation and ongoing maintenance of patch cord systems can help ensure that your network experiences as much uptime as possible. Installation Roms Ds. A patch cord problem can wreak havoc on an enterprise, from preventing an airline customer from making a necessary reservation change to keeping a hotel guest from getting work done while on business travel. What Drives Data Growth Explosive data growth due to social media, video streaming, Io. T, big data analytics and changes in the data center environment virtualization, consolidation and high performance computing means one thing Data traffic is not only growing in bandwidth, but also in speed. Another essential point is network design. Todays network design, such as a leaf spine fabric, makes the network flatter, which lowers latency this makes the Ethernet and corresponding patch cord types incredibly important. The Definition of a Patch Cord. A patch cord is a cable with a connector on both ends the type of connector is a function of use. A fiber patch cord is sometimes referred to as a jumper. Patch cords are part of the local area network LAN, and are used to connect network switches to servers, storage and monitoring portals traffic access points. They are considered to be an integral part of the structured cabling system. FiberOpticTesting.jpg' alt='Optical Patch Cord Testing' title='Optical Patch Cord Testing' />Topic Hints for Use And Frequently Asked Questions About The Optical Time Domain Reflectometer OTDR Table of Contents The FOA Reference Guide To Fiber Optics. Pack in White only 2. C20 Type IEC Power Plug Power Cord Secure Tension Sleeve for IEC C20 in White with Label Surface. InformationWeek. com News, analysis and research for business technology professionals, plus peertopeer knowledge sharing. Engage with our community. Copper patch cords are either made with solid or  stranded copper due to potential signal loss, lengths are typically shorter than connector cables. A fiber patch cord is a fiber optic cable that is capped at both ends with connectors. The caps allow the cord to be rapidly connected to an optical switch or other telecommunicationscomputer device. The fiber cord is also used to connect the optical transmitter, receiver and terminal box. Selecting Copper Patch Cords. There are many copper patch cord types to consider but here are a few key elements to keep in mind. Size A copper patch cord with a smaller OD outside diameter takes up less space, and also has a smaller bend radius. This allows it to be deployed in space deprived environments, and offers more working space for potential expansion in the future. Twinning A stable and consistent twinning process the twisting of copper conductors helps maintain internal cable characteristics and reduce signal loss during physical manipulation. Bonded Pair Technology The process of bonding individual conductors along the longitudinal axis guarantees uniform spacing between the twisted pair, as well as reliable electrical performance. Types of Testing Transmission performance depends on the integrity of the system, including cable characteristics, connecting hardware, cross connect wiring and patch cords. Manufacturer testing and post installation testing ensure that the network remains reliable and 1. Length Pay attention to length restrictions for twisted pairs. Connections Look for snagless, over molded engineered boots, which offer strain and pull relief to protect patch cords from damage. Traceability Having the ability to trace a patch cords connection points improves reliability, reduces troubleshooting time, improves uptime and reduces IT teams efforts when making changes. Selecting Fiber Patch Cords. Choosing fiber patch cords requires just as many considerations as choosing copper patch cord types. Before selecting a fiber patch cord, ask yourself Which connector type is needed LC, SC, ST, FC, MPO or MTPEach connector option offers pros and cons. Selecting the right connector can speed up deployment and reduce costs. Should singlemode or multimode patch cord types be used Singlemode patch cords are used for long distances multimode patch cords are used for shorter distances. Are simplex one connector per end or duplex two connectors per end cable connections necessary How long should the patch cord be For example, fiber patch cords are available in lengths of 2 m, 3 m or 5 m. The right patch cord length will eliminate slack and potential damage due to kinking. What type of cable jacket is needed Depending on the installation location plenum, underfloor, exterior or floor mounted, the exterior cabling jacket is available in a variety of configurations to protect the cables insulation and conductor core. Selecting the right jacket single jacket, plenum rated, double jacketarmored, double jacketheavy duty, etc. The demand for higher bandwidth and faster network speeds requires a network that can handle higher compute densities without sacrificing reliability. Selecting, installing and maintaining the right patch cord type affects todays network in many ways. Beldens copper and fiber patch cords offer superior performance and engineered resiliency to meet the bandwidth and network speeds of today, tomorrow and beyond. DNA Testing Suggests Dogs Needed No Convincing to Befriend Humans. Dogs have loved us for thousands of years, despite humanitys many flaws and foibles. New research suggests dogs were domesticated from wolves just oncethats all it might have taken for puppers and people to form an everlasting alliance. The study, which was published online yesterday in Nature Communications, analyzed the genomes of two ancient German doggosone 7,0. The researchers compared their dog DNA data to the genome of a 4,8. Ireland that other scientists had studied in 2. In that study, published last year in Science, researchers put forth a dual origin idea that dogs were domesticated from wolves on two separate occasions, in Europe and Asia. But in this recent study, researchers wrote their ancient doggos predominantly shared ancestry with modern European dogs. In other words, there might have actually been a single origin, although the precise location where dogs were first domesticated is still somewhat of a mystery. We came to the conclusion that our data consisting of prehistoric three Neolithic genomes and DNA from thousands of modern dogs from across the world supported only a single domestication event from a group of wolves somewhere in Eurasia sometime between 2. Krishna Veeramah, an assistant professor of ecology and evolution at Stony Brook University, told Gizmodo. In addition, most of the dogs people keep as pets today are likely genetically the descendants of the dogs that lived amongst the first European farmers 7,0. Dogs were the first animal to be domesticated by humans. Anyone who owns a cat can tell you that felines were definitely domesticated long afterward. While this new study wont end the argument over how many times dogs were domesticated, it does offer a compelling, simple solution. One the face of it you might think, why is it important that there was one, two, three or even four domestication events Veeramah explained. But if youre trying to find out how and why it occurs, whether it was one or more is important. Humans and wolves have likely lived in the same region for maybe 4. So if the process of domestication only occurred once, this tells us it was likely very hard to do. Humanity is constantly evolving, and has reinvented and embarrassed itself so many ways over the course of thousands of years. But in this ever shifting nebula of chaos we call life, at least one thing remains true the dogs are good.