DCN June 2017 - Page 28

big data & IoT The 10km two-fibre singlemode 200Gb/s (200GBASE- LR4) and 400Gb/s (400GBASE- LR8) Ethernet implementations will utilise next generation WDM techniques to allow deployment over the installed base of two-fibre singlemode optical fibre cabling, which currently supports applications such as 40GBASELR4 and 100GBASE- LR4. In another first, the IEEE P802.3bs Task Force will also be developing 200Gb/s and 400Gb/s Ethernet equipment technology (200GBASE-FR4 and 400GBASE-FR8, respectively) for operation over up to 2km of singlemode optical fibre cabling. This addition to the solution set will offer customers another cost optimised high speed 200Gb/s and 400Gb/s option to support mid-reach transmission distances of between 500m and 10km. The ‘There will be 200Gb/s and faster speed backbone cabling network options available for everyone very soon.’ preferred equipment connection for the new two-fibre 200Gb/s and 400Gb/s applications is the LC interface. Accidental mating Note that a new interface, called an MPO-16 plug and receptacle, will be required to support the 32-fibre 400GBASESR16 multimode application. The MPO-16 plug is similar to an MPO plug except that it supports four additional fibres per row. It is designed with an offset key to prevent accidental mating with a standard MPO/MTP receptacle. It remains to be seen whether widescale adoption of this interface will occur or if emerging products, such as TIA-492AAAE wideband OM4 characterised for support of wavelength division multiplexing, and technology, such as 100Gb/s serial transmission, will lead future high speed optical fibre applications development down a different path. When the initial objectives for this project were developed, IEEE P802.3bs 200Gb/s and 400Gb/s Ethernet Task Force participants took great care to understand the specific needs of every type, size, and style of data centre. In particular, the ability of data centres to keep up with the intense demands of the emerging IoT landscape, including the associated rapid increase in device generated and Big Data, with greater than 100Gb/s solutions is more critical than ever. With reach ranges falling at 100m, 500m, 2km, and 10km, there truly will be 200Gb/s and faster speed backbone cabling network options available for everyone very soon. Next Time… virtualisation & cloud computing As well as its regular range of features and news items, the April issue of Data Centre News will contain major features on virtualisation and cloud computing. To make sure you don’t miss the opportunity to advertise your products to this exclusive readership, call Francesca on 01634 673163 or email francesca@allthingsmedialtd.com. 28 | June 2017 data centre news