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by www.fiber-mart.com In data centers, there are a lot of electrical devices and each one requires a power supply cable and at least one connection wire for transmission. It’s a disaster to see all those wires scattering all over the floor and tangling together. To introduce Power over Ethernet technology, we can cut down the number of wire drops and simplify the management control. So what’s the practical methods for adding PoE to your network? Read the following passage, to learn about the two solutions: adopting PoE switch or PoE injector.   Overview of PoE Implement Method PoE requires PoE-enabled networking devices for power supply on the Ethernet cable. To realize this technology, there are two types of power sourcing equipment (PSE) for adopting: endspan (IEEE 802.3af refers to it as “endpoint”) and midspan. Endspan is an Ethernet switch that has built-in PoE data transmission circuitry. A midspan is an intermediary device between a non-PoE switch and powered devic...

by www.fiber-mart.com The telecommunication industry has always been developing with leaps and bounds and technology changes with each passing day. For common people with few network knowledge, the evolving optional network devices like PoE switch can be a big puzzle. What is PoE? What is the distinction of gigabit PoE switch vs normal switch? Read this article for reference.   What Are PoE and  PoE Switch ? PoE, abbreviation of Power over Ethernet, is a technology that enables Ethernet cable to supply power. Thus power sourcing equipment (PSE) can transmit both data and power to powered devices (PD) simultaneously via one single cable. PoE has two standards available on network switch: IEEE 802.3af/at. The former orginal PoE standard is defined in 2003, which provides 15.4 W power budget to PDs (12.95 W available for accessing). The latter PoE+/PoE Plus standard defined in 2009 provides up to 30 W (25.5 W) power.   PoE switch is one of the two types of PSE ...

by www.fiber-mart.com As networking equipment becomes denser and port counts in the data center increase to several hundred ports, managing cables that are connected to these devices becomes a difficult challenge. Traditionally, conneting cables directly to individual ports on low-port-count equipment was considered manageable. Applying the same principle to high-density and high-port-count equipment makes the task more tedious, and it is nearly impossible to add or remove cables that are connected directly to the equipment ports.   Using fiber cable assemblies that have a single connector at one end of the cable and multipe duplex breakout cables at the other end is an alternative to alleviate cable management. Multifiber Push-On (MPO) cable assemblies can achieve these goals. The idea is to pre-connect the high-density and high-port-count Lucent Connector(LC) equipment with and MPO to LC Breakout cable (shown in Figure 6-1) to dedicated MPO modules with a dedicated patch ...

by www.fiber-mart.com With the expected growth of today’s communications, network operators must meet the continuing growth in data traffic and the increasing demand for bandwidth while making full use of the investment in the existing network infrastructure. Instead of costly upgrade and rewiring for fibers, fiber media converters provide a cost-effective solution by extending the life of the existing structured cabling. How fiber optic media converter can achieve this? And how much do you know about it? Today, this article will tell you something about fiber media converter.   What Is a  Fiber Optic Media Converter ? Fiber media converter is a simple network device that can connect two different media types such as twisted pair with fiber optic cabling. Its function is to convert the electrical signal used in copper unshielded twisted pair (UTP) network cabling into light waves that used in fiber optic cabling. And fiber media converter can extend transmission dist...

by www.fiber-mart.com Bend insensitive multimode fiber (BIMMF) has become a very active area within the telecommunication industry once it was introduced and popularized. It typically signifies technical advancements in the production of multimode optical fiber for easier installation, and cable management for  multimode fiber cables  through improvements in bend insensitivity. This article will focus on some useful information about BIMMF from the perspective of its working principle, performance in networking and unique advantages as well.   What Is Bend Insensitivity? An optical fiber consists of a core and a cladding. Although both of these regions are made from glass in telecommunications grade fibers, they are significantly different from each other. Each region is designed to capture light within the core and transmit it to the opposite end of the fiber. During this process, the light may follow many paths, depending on the angle at which the light hits t...

by www.fiber-mart.com As a perfect choice for today’s telecommunication which requires a larger bandwidth, fiber optic cables have been widely put into use and get more popularity. However, when optical cables are increasingly used in different applications with diverse environments, for example, from indoor to tough environments, new and demanding requirements also have been put forward for them. Before deployment, several considerations may occur. For instance, can they resist the erosion of oil or chemicals? Can they still work normally in changeable weather? Do they have rodent-resistant ability? The answer of all the questions is yes. Today’s fiber optic cables possess various abilities to meet different requirements. Here is a brief introduction several ruggedized fiber optic cables that can work in different harsh environments, providing more conveniences and extra protection for network systems.   Armored Fiber Optic Cable Armored fiber optic cable  is one of...

by www.fiber-mart.com With the major carriers “Broadband speed”, “Light of Copper” project extensively, The future will be a multimedia broadband services, video on demand, interactive games as the main feature, high-bandwidth, integrated operators will be judged promoted by the merits of the standard broadband products.   Under the broadband  Fiber Optic Products  in the trend, PON technology has become the world’s attention to various telecom operators hot technology is one of the operators to implement “broadband speed”, “Light of Copper” engineering technology base. Wheter EPON, or GPON, which provides only for the uplink and downlink bandwidth of 1G or 2G, but with the current interactive network TV (IPTV), high definition television (HDTV), online games, video services and other large flow, a large broadband business development and popularization of the per-user bandwidth demand is expected to grow every three years, a trend of increasing magnitude, from th...

by www.fiber-mart.com A systems analysis continues to be completed to consider dynamical transient effects in the physical layer of an  Optical WDM Network . The physical layer dynamics include effects on different time scales. Dynamics from the transmission signal impulses possess a scale of picoseconds. The timing recovery loops in the receivers be employed in the nanoseconds time scale. Optical packet switching in the future networks will have microsecond time scale. Growth and development of such optical networks is yet continuing. Most of the advanced development work in optical WDM networks is presently focused on circuit switching networks, where lightpath change events (for example wavelength add/drop or cross-connect configuration changes) happen on the time scale of seconds.   It is focused on the dynamics from the average transmission power associated with the gain dynamics in Optical Line Amplifiers (OLA). These dynamics may be triggered by the circuit swit...

by www.fiber-mart.com With the advances of the information age, a great amount of people specialized in the field of network communication begins to attach great importance to the selection of fiber optic cables. From data and voice to security and videoconferencing, plenty of contemporary cable infrastructure services depend heavily on fiber optics to transmit information of farther distance at a higher speed, which makes fiber optics a standard component in daily communication nowadays. Fiber optics are considered to be a desirable cable medium because of its immunity to electromagnetic interference (EMI) and radio frequency interference (RFI) , not to mention its bandwidth that helps to meet the increased capacity demand, and its reliable reputation to ensure worry-free maintenance. This article is going to focus primarily on some essential component in fiber optic installation and provide some insight into selecting the right fiber optic cable.   The Necessities of Sele...

by www.fiber-mart.com Fibre patch leads offer a highly reliable way to transmit signals, which is widely used in telecom industry. When selecting the correct fibre patch lead for a data center or network, it may be a challenging task since there are various types on the market. Understanding fibre patch leads types would be greatly helpful.   What Is Fibre Patch Lead? Fibre patch lead is a fibre optic cable with connectors like LC, SC on both ends. Sometimes it’s referred to as a fibre jumper. Fibre patch leads play important roles for indoor uses like server rooms. Usually, they are used to connect fibre optical transmitter, receiver such as fibre transceiver.   Understanding Fibre Patch Leads Types Fibre patch leads are divided into different types according to fibre cable modes, transmission modes and connector types. Fibre Cable Modes: Single Mode vs Multimode The mode of fibre cables indicates that how light beams travel within the fibre cables. Single mod...