Category Archives: Data Transmission

Компоненты кабельной системы MPO

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Волоконно-оптическая кабельная система MPO состоит из претерминированных многоволоконных оптических кабелей, которые подключаются к претерминированным оптическим кассетам. Кабели MPO содержат 12 оптических волокон, оконцованных 12-волоконными MPO-соединителями без смены полярности, которые включаются непосредственно в оптические кассеты на обоих концах. Система MPO доступна в многомодовом и одномодовом вариантах, длины соединительных кабелей могут определяться заказчиком. Система MPO от AMP NETCONNECT обеспечивает очень низкие потери и требует нечетное количество смен полярности в кабельном тракте в соответствии с TIA-568-B1-7 Connectivity method C. Компоненты системы MPO изготавливаются и тестируются в заводских условиях.…

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FAQ about microQSFP

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Q: What will the microQSFP (Micro Quad Small-Form-Factor Pluggable) MSA address and the microQSFP specification define? (Optical interfaces and copper?) A: The microQSFP MSA will develop a specification for a new compact module form factor, microQSFP, and make the specification available to the industry to promote industry adoption of compatible products that can be used for a variety of applications including copper cable and fiber-optics transceivers in a manner similar to SFP or QSFP form factors. There will be sufficient details in the specification such…

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What Is Power-over-Ethernet?

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PoE is short for Power Over Ethernet, is a methods of carrying both data and power to a device over copper cable. This is accomplished by running a twisted-pair copper cable, such as a Category 5 cable, from a device to a mid-span or endpoint, where the cable can be connectorized using standard RJ-45 or similar modular connectors. While power and data are carried over the same physical channels, there is no interference between them because the power is direct current (DC) and the data is run on…

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Broadband over power line BPL

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Broadband over power line, also called power line communications, refers to communicating over the existing aluminum and steel wire network, built by the power industry to provide electricity to businesses and homes, by transmitting data at medium and high frequencies. In the US, electric power is transmitted as a 60 Hz signal at various voltages over varying sized wires to our homes and businesses [6]. BPL introduces the concept of communicating information over medium voltage lines, around 12 – 64 kilovolts, at frequencies excluding 60…

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MTP/MPO CIRCULATOR

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MTP/MPO Fiber Circulator is used for test the transmitting ability and receiving sensitivity of network device, beside it, it is also a reliable product to test the system loop. Features 4-core, 8-core, 12-core optional Standard loss, low loss optional Single Mode APC or Multimode PC Optional Standard fiber array or customized Reliable PIN positing testing for Male/Female PIN Optical Parameters Insertion Loss (dB) SM Standard SM Elite MM Standard MM Elite ≤0.7 ≤0.35 ≤0.7 ≤0.35 Return Loss (dB) ≥60 ≥20 Durability  (dB) ≤0.2   500 times…

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Diseño físico de conectores y adaptadores SC

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Para nuevas instalaciones de cableados estructurados de telecomunicaciones, se recomienda utilizar los conectores y adaptadores SC, o cualquier otro conector y adaptador que cumpla con las especificaciones indicadas la figura A del estándar ANSI/EIA/TIA-568B.3 o equivalente, debido a que facilitan establecer y mantener la polarización correcta de las fibras utilizadas para la transmisión y recepción. El conector y adaptador deben permitir la conexión de fibra óptica simple o dúplex. La conexión SC (conector y adaptador) deber ser del tipo dúplex SC connector/2.5 con un espaciamiento…

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Fiber Considerations for 100 Gig – 3

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Fiber Requirements Point to OM4 OM4 fiber offers a minimum effective modal bandwidth (EMB) of 4700 megahertz kilometer (MHz•km) at 850 nanometers (nm) compared with 2000 MHz•km for OM3. Both OM3 and OM4 fibers are 50 micron (µm) laser-optimized fibers with extended bandwidth and were designed to enhance the system cost benefits enabled by 850 nm VCSELs for laser-based 10, 40 and 100 Gb/s applications. They also are backwards compatible, with applications calling for overfilled launch (OFL) bandwidth of at least 500 MHz•km at 1300…

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Fiber Considerations for 100 Gig – 2

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Network Design and Layout As in previous Ethernet standards, 40 Gb/s and 100 Gb/s define several different Physical layer (PHY) implementations for transmitting information over various distances and media types. These media types include multimode and singlemode optical fiber cabling and some form of copper cabling. Additionally, various transceiver types are defined, distinguished by which media they are intended for and how far they transmit. Table 1 above lists the PMD devices that were adopted by IEEE 802.3ba, along with their media type and minimum…

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Fiber Considerations for 100 Gig – 1

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The unrelenting demand for band width in the enterprise, and the resulting need for high-capacity, high-performance computing, is generating ever-faster network speeds. But 100 gigabits per second (Gb/s)? This would have seemed like a pipe dream 10 years ago, but it is now a fact of life in today’s enterprise networks and data centers. What, specifically, is driving this demand? The major factors are familiar by now—bandwidth-intensive applications such as video over the Internet (e.g., You Tube, Hulu, Netflix); rapid advancement in research and development…

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Terabit super-channels squeeze 50 per cent more capacity from fibre

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In the past week, there have been several successful demonstrations of terabit super-channel transmission using ultra-narrow channel spacings, which can increase overall system capacity by an additional 50 per cent compared to today’s commercial systems. ADVA Optical Networking and T-Systems, the systems and services division of Deutsche Telekom, took part in the ‘Terabit Demonstrator’ project, which was designed to showcase terabit transmission over a distance in excess of 1,000km in a software defined networking (SDN) environment. Meanwhile, Huawei and Proximus (formerly Belgacom) reported that terabit…

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