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by www.fiber-mart.com We know that fiber can carry more data over long distances than any other physical medium. That makes fiber a very precious material. And how to make the most use of your fiber plant becomes a question. So there comes Wavelength Division Multiplexing (WDM).   Why Should We Deploy WDM ?   WDM can multiply your fiber capacity by creating virtual fibers. The foundation of WDM lies in the ability to send different data types over fiber networks in the form of light. By allowing different light channels, each with a unique wavelength, to be sent simultaneously over an optical fiber network, a single virtual fiber network is created. Instead of using multiple fibers for each and every service, a single fiber can be shared for several services. In this way WDM increases the bandwidth and maximizes the usefulness of fiber. Since fiber rental or purchase accounts for a large share of networking costs, substantial costs can be saved through the application of WDM

by www.fiber-mart.com A continuous stream of manufacturing process improvements and product innovations has given fiber optical system several advantages, like longer distance reach, larger data-carrying capacity, greater bandwidth and lower power consumption. Among these fiber optical product innovations, hot-plable transceiver modules should come to the central point with their unique designs. They have been constantly designed, and finally been reinvented as hot-plable modules along with the optical technological advances. These small, hot-plable serve as the key components in accommodating the demands of higher port density and more networking flexibility.   Transceiver modules come into various types: SFP (small form-factor plable), SFP+ (small form-factor plable plus), QSFP+ (quad small form-factor plable plus), etc. This article mainly introduces SFP transceiver modules which are widely applied in Gigabit Ethernet (GbE) applications, with the focus on several 1000BASE-X i

by www.fiber-mart.com New sophisticated networking services, coupled with the increase of Internet users push the Internet traffic to an even higher point, driving the need for increased bandwidth consequently. One Ethernet technology—10 Gigabit Ethernet (GbE) is adequate for such bandwidth demand, and has become widely available due to the competitive price and performance, as well as its simplified cabling structure.   Several cable and interconnect solutions are available for 10GbE, the choice of which depends on the maximum interconnect distance, power budget and heat consumption, signal latency, network reliability, component adaptability to future requirements, cost. Here cost includes more than what we call the equipment interface and cable cost, but more often the labor cost. Thus, choosing a 10GbE interconnect solution requires careful evaluation of each option against the specific applications. This text aims to introduce two main 10GbE interconnect solutions: fiber op

by www.fiber-mart.com Although cabling only represents less than 10 percent of the overall data center network investment, it outlives most network elements and treated as the most difficult and potentially costly component. With the datacenter cabling ranging from 1G to 10G, 10G to 40G and even to 100G, more complex cabling is required to ensure a good service or scalability for troubleshooting. In practice, there is no exact solution that will meet all of the cable management needs. However, two kinds of cabling systems can be applied—unstructured system and structured system. Just follow the guidelines and illustration highlighted in the article will go a long way to ensure you with the information required for the successful deployment of a cabling infrastructure in your data center.   Unstructured Cabling System   Unlike the structured cabling system with a managed patch panel, a unstructured cabling only occurs when optical links are deployed point to point or device t

by www.fiber-mart.com We know that fiber can carry more data over long distances than any other physical medium. That makes fiber a very precious material. And how to make the most use of your fiber plant becomes a question. So there comes Wavelength Division Multiplexing (WDM).   Why Should We Deploy WDM ?   WDM can multiply your fiber capacity by creating virtual fibers. The foundation of WDM lies in the ability to send different data types over fiber networks in the form of light. By allowing different light channels, each with a unique wavelength, to be sent simultaneously over an optical fiber network, a single virtual fiber network is created. Instead of using multiple fibers for each and every service, a single fiber can be shared for several services. In this way WDM increases the bandwidth and maximizes the usefulness of fiber. Since fiber rental or purchase accounts for a large share of networking costs, substantial costs can be saved through the application of WDM

by www.fiber-mart.com The Linux Foundation has used the Mobile World Congress this week in Barcelona to announce its intent to form the OPEN-Orchestrator Project (OPEN-O). The project will seek to develop the first open source software framework and orchestrator to enable software-defined networking ( SDN ) and network function virtualization (NFV) operations.   The foundation, which is also a major force behind such SDN/NFV-related projects as OpenDaylight and ONOS, says initial supporters of OPEN-O include Brocade, China Mobile, China Telecom, DynaTrace, Ericsson, F5 Networks, GigaSpaces, Huawei, Infoblox, Intel, KT, Red Hat, Raisecom, Riverbed, and ZTE. Other interested parties are welcome to participate as well, according to the foundation.   The Linux Foundation says the project is necessary because, while SDN and NFV have begun to enable autonomous, real-time telecom operations, many operational support systems (OSS) based on proprietary software are getting in the way

If you know  Cisco SFP Modules , you must know the SFP Ports. If you didn’t know what are SFP modules or SFP ports, you can read this article, which can tell you what are SFP ports on a Gigabit Switch used for?   Cisco SFP Modules, the industry-standard Cisco Small Form-Factor Pluggable Gigabit Interface Converter, links your switches and routers to the network.   SFP sockets are found in Ethernet switches, routers, firewalls and network interface cards. It interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic or copper networking cable.   In many cases, SFP ports are also known as mini-Gigabit interface converter (GBIC) modules, as they have replaced the older GBIC transceivers.   SFP Port Advantage   It is flexible for the SFP port link to the network. The SFP port is the I/O device which is able to be hot-plugged. We are able to insert the Gigabit Ethernet port or slot into the SFP port and then connec

by www.fiber-mart.com Fiber wires lose light no matter what. They have a db/km loss rate, this is subject matter we have covered in my other blog on Split Ratio & Budget Light Loss.   But, did you know your bend radius could affect the db loss of a fiber cable?   There is a lot of engineering, research and development that goes into building fiber network hardware. Today I'm talking about passive fiber network TAPs and the bend radius of a fiber cable.   Typical Electronic Frequency in HZ = is 1/ wavelength. In Fiber the Frequency (f) equation is the speed of light in fiber (v) /wavelength (A). The average speed of light in a fiber is around *2.14 X 10 -8 m/seconds.   Note this will cary with different fiber but is an acceptable average. Frequency A is a higher frequency than frequency B which has a longer wavelengths. An interesting fact - the frequency of a signal (light or photon flow) stays the same in the air or in a fiber.   Bend Loss Factors

by www.fiber-mart.com Network technicians often commit major errors crossing fiber cables during installation. If they don’t understand polarity or rush to get their network equipment powered up, they run the risk of using the wrong patch cord. That can be bad news.   This is the 15th in a Telect blog series, entitled The ABCs of Cable Management. Product Specialist Hugo Garcia explains the different types of polarity and how it can impact your fiber optic network.   Your network performance is at risk if fiber cable polarity isn’t a priority during installation. The wrong connection can result in signal degradation.   Or worse: damaged critical active equipment, which can lead to network downtime.   The challenges can arise if polarity is not properly maintained. This can be as simple as connecting an Rx transmitter to another Rx transmitter. Your signal won’t transmit.   WHAT IS POLARITY? Polarity is often used to define a direction of flow. For example, a ba

Are you tired of messy network? As the world embraces the increasingly faster data-rate network, IT managers felt great stress over the inability to organize and create a neat rack mounted environment. Patch panels allows the easy management of patch cables and link the cabling distribution areas, which paves the way for a refreshing new approach to a neat optical network.   Patch panels  are usually installed on enclosures or racks to provide an easy way to organize connections. Patch panels are available in many different variations. Key design variations include:   Jack module type Patch panel material type Unshielded patch panels vs. shielded patch panels Flat patch panels vs. angled patch panels Standard patch panels vs. high-density patch panels Port labeling Patch panels also allow several cable connectors to be used (LC for fiber and RJ45 for copper). Today’s article will be concentrated on the illustration of the copper patch panels, especially cat5e patch

Power-over-Ethernet (PoE) is the technology that allows network switches to transmit power and data through an Ethernet cable at the same time.  PoE switch  streamlines both of the processes of powering and providing data to the device, which makes it a straightforward and reliable device for home network and small enterprise application. This article describes two types of PoE (PoE and PoE+) that are commonly used and provides information on what types of PoE can be used according to different applications.   PoE Versus non-PoE Technology   Power over Ethernet technology facilitates powering a device (such as an IP phone, IP Surveillance Camera, or NVR recorder) over the same Ethernet cable as the data traffic. Figure 1 shows an Ethernet Network with IP camera, PoE Switch, NVR recorder and Wireless router. Compared to non-PoE devices, PoE devices feature with flexibility that allow you to easily place endpoints anywhere in the business, even places where it might be difficult

Optical amplifier , with the introduction in 1990s, conquered the regenerator technology and opened doors to the WDM technology. It is mainly used to amplify an optical signal directly, without the need to first convert it to an electrical signal. There are many types of optical amplifiers, namely Raman amplifiers, erbium doped-fiber amplifiers (EDFAs), and semiconductor optical amplifier (SOA). This article will make a clearer introduction to SOA amplifier, and analyze its advantages and disadvantages.   The Basics of Semiconductor Optical Amplifier (SOA)   SOA optical amplifiers use the semiconductor as the gain medium, which are designed to be used in general applications to increase optical launch power to compensate for loss of other optical devices. Semiconductor optical amplifiers are often adopted in telecommunication systems in the form of fiber-pigtailed components, operating at signal wavelengths between 0.85 µm and 1.6 µm and generating gains of up to 30 dB. Semico