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With the trend of high-density cabling and the coming of 40/100G network, MPO/MTP® assemblies play a more and more important role in fiber optic network. As one of the commonly used assemblies, the MPO/MTP® cassette module, which is designed with LGX format can be mounted in 1U 19″ multi-slot chassis or 4U rack chassis, greatly meeting the demands for high density. Additionally, used to interconnect MPO/MTP® backbones with LC, SC or FC patch cords etc., it is an ideal solution for network migration.
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
With the trend of high-density cabling and the coming of 40/100G network, MPO/MTP® assembliesplay a more and more important role in fiber optic network. As one of the commonly usedassemblies, the MPO/MTP® cassette module, which is designed with LGX format can be mounted in1U 19" multi-slot chassis or 4U rack chassis, greatly meeting the demands for high density.Additionally, used to interconnect MPO/MTP® backbones with LC, SC or FC patch cords etc., it is anideal solution for network migration.
Components & Design
In general, MPO/MTP® cassette module is an LGX format enclosed unit that contains 12 or 24-fiberfactory terminated fan-outs inside. The fan-outs typically include such as SC, LC, ST-style connectorsplugged into adapters on the front side of the cassette and a MPO/MTP® connector plugged into aMPO/MTP® adapter mounted at the rear of the cassette, as the following picture shown:
MPO/MTP® CassetteModule Solution
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
Inside the cassette, alignment pins are pre-installed in the inside MPO/MTP® connector whichprecisely align the mating fibers in the MPO/MTP® connectors at either end of the array cables thatplug into the cassettes. Furthermore, one or more MPO/MTP® fan-out assemblies may be installedinside the cassette to connect up to more than 144 ports.
With this design, the MPO/MTP® cassette module can transfer the multi-core fiber terminated witha MPO/MTP® connector to the more common LC or SC interface used on the transceiver terminalequipment.
Cassette TypesA variety of mounting options are available to mount the MPO/MTP® cassette module in a rack oron a wall that results in different types of the cassette in the market. In general, there are standardshape type and irregular shape type. The former refers to the standard LGX format which iscommonly used in practical applications, as the following picture (left) shown. While the latter isirregular which contains various of shapes, as shown in the following picture (right).
Polarity SelectionThe TIA (Telecommunications Industry Association) standard “TIA/EIA 568-B.1-7ʺ defined threeconnectivity methods (as the following picture shown) for maintaining polarity in serial duplexoptical connections. This standard covers typical system configuration containing cassettes ormodules where there is an MPO/MTP® to duplex connector transition. Depending on wiringconfiguration, cassettes may deploy MPO/MTP® adapters with key-up/key-down (Method A) orkey-up/key-up (Method B). The only difference between a Method A and Method B cassette is theorientation of the internal MPO/MTP® connector with respect to the mating MPO/MTP® array cableconnector. Method A uses straight-through type A backbones (pin1 to pin1) and type A (key-up tokey-down) MPO/MTP® adapters. Method B uses cross-over type B backbones (pin1 to pin12) andtype B (key-up to key-up) MPO/MTP® adapters.
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
Method A Connectivity
Method B Connectivity
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
Method C Connectivity
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In the market, most cassettes are configured in accordance with the TIA Connectivity Method A.Because Method A provides the simplest deployment, works for both single-mode and multimodechannels, and easily supports network extensions. In addition, Method A cassettes are also used forMethod C connectivity since the key positions are the same in the two methods. Method Bconfiguration is also available on request. However, there is a limitation of Method B that it doesn’tallow use of an angled polished (APC) single-mode connector.
The type of MPO/MTP® cassette module you choose depends on your network connectivity andcomponents needs. One thing to remember is that adding Method B components (cables or matingadapters) swaps the fibers while Method A components (cables or mating adapters) does not affectthe positions of the fibers. Thus, if you need to reverse fibers, use Method B components. If you donot want to reverse fibers, use Method A components. However, always to remember that do notmix and match methods and components.
Advantages & ApplicationsThere are a variety of advantages of MPO/MTP® cassette module. With the easy-installed design, itcan greatly reduce the labor cost and save more space and time. In addition, it is more easy formanagement and maintenance and has less security risk. It satisfies the demands for high optical
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
port density and system interoperability. Thus, it is more andmore popular with users. MPO/MTP® cassette modules canbe used in both lower fiber count break out applications (e.g.,server cabinets) and high fiber count interconnects bymounting in chassis. It is an ideal solution for interconnectionor cross-connection in telecommunications networks, WDMapplications, data center cabling, backbone cabling and40/100G communication network.
Fiberstore Product SolutionFiberstore supplies a wide range of MTP/MPO products. For MPO/MTP® cassette module, we offerPlug-N-Play cassettes, ultra high-density 1U patch panel, 1U 19ʺ rack mount holders and 4U 19ʺ rackmount holders which satisfy the demands for single-mode or multimode, lower fiber count and highfiber count applications. In addition, other MPO/MTP® assemblies such as MPO/MTP® trunk cables,harness cables and adapters are available. In order to better satisfy your unique demands, we alsosupport custom or OEM service. In addition to choose the high-quality and cost-effectiveMPO/MTP® products, Fiberstore recommends you to select and implement a proper method ofconnectivity and stick with it, and make sure that all of the components in your system are clearlyidentified, labeled and recorded. For more information, please contact us over [email protected].
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Fiberstore (FS.COM) | MPO/MTP® Cassette Module Solution
Contact UsManufacturing R & D (China)
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Notice: This document is for informational purposes only and does not set forth any warranty, expressed orimplied, concerning any equipment, equipment features, or service offered or to be offered by Fiberstore.Fiberstore reserves the right to make changes to this document at any time, without notice, and assumes noresponsibility for its use. This information document describes features that may not be currently available.Contact a Fiberstore sales team for information on feature and product availability.
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