--- title: What's the Deal with OM5? description: OM5, previously known as wide band multimode fiber, has been quite the hot-button topic as the standards have been widely debated and are now finally concrete. image: https://www.accu-tech.com/hubfs/Corning%20SQUARE.png --- {% set baseFontFamily = "Open Sans" %} /* Add the font family you wish to use. You may need to import it above. */ {% set headerFontFamily = "Open Sans" %} /* This affects only headers on the site. Add the font family you wish to use. You may need to import it above. */ {% set textColor = "#565656" %} /* This sets the universal color of dark text on the site */ {% set pageCenter = "1100px" %} /* This sets the width of the website */ {% set headerType = "fixed" %} /* To make this a fixed header, change the value to "fixed" - otherwise, set it to "static" */ {% set lightGreyColor = "#f7f7f7" %} /* This affects all grey background sections */ {% set baseFontWeight = "normal" %} /* More than likely, you will use one of these values (higher = bolder): 300, 400, 700, 900 */ {% set headerFontWeight = "normal" %} /* For Headers; More than likely, you will use one of these values (higher = bolder): 300, 400, 700, 900 */ {% set buttonRadius = '40px' %} /* "0" for square edges, "10px" for rounded edges, "40px" for pill shape; This will change all buttons */ ### After you have updated your stylesheet, make sure you turn this module off [Click to Contact Sales](https://www.accu-tech.com/contact-us) | Call Corporate Office at [888-222-8832](tel:18882228832) [![Accu-Tech logo with tagline in navy blue](https://www.accu-tech.com/hs-fs/hubfs/Accu-Tech%20Blue%20Tagline%20300px%20-%20Edited.png?width=300&height=95&name=Accu-Tech%20Blue%20Tagline%20300px%20-%20Edited.png "Accu-Tech logo with tagline in navy blue")](https://www.accu-tech.com/) # What's the Deal with OM5? by **[Bobby Salerno](https://www.accu-tech.com/accu-insider/author/bobby-salerno)** on May 1, 2017 **Guest Posting from Corning Optical Communications**[![Corning SQUARE.png](https://www.accu-tech.com/hs-fs/hubfs/Corning%20SQUARE.png?width=335&name=Corning%20SQUARE.png)](https://www.accu-tech.com/webinars/corning/om5fiber/market-impact) OM5, previously known as wide band multimode fiber or WB MMF, has been quite the hot-button topic as the standards have been widely debated and are now finally concrete. So what is OM5 exactly? Most simply, it’s a version of the **OM4 fiber with additional bandwidth** characterization at 953 nm. But of course, that’s not all. **What’s new in standards?** Telecommunications Industry Association (TIA) initiated a workgroup in October 2014 to develop guidance for a wide band multimode fiber (WBMMF) 50/125 μm standard to support short wavelength division multiplexing (SWDM) transmission. The TIA-492AAAE Standard was published in June 2016. The IEC WB MMF standard is anticipated to be completed by early 2017. **What is different about OM5?** The OM5 optical and mechanical attributes are compliant with OM4 50/125 μm specifications and include the additional specifications of effective modal bandwidth and attenuation at 953 nm. WB MMF is intended for operation using vertical-cavity surface-emitting laser (VCSEL) transceivers across the 846 to 953 nm wavelength range.  [Learn more about OM5, Trends and Market Impact by signing up now for the FREE webinar](https://www.accu-tech.com/webinars/corning/om5fiber/market-impact) [Learn more about Corning](https://www.accu-tech.com/vendors/corning) [Learn more about Accu-Tech](https://www.accu-tech.com/) - [Tweet](https://twitter.com/share) Topics: [fiber](https://www.accu-tech.com/accu-insider/topic/fiber) [corning](https://www.accu-tech.com/accu-insider/topic/corning) [webinar](https://www.accu-tech.com/accu-insider/topic/webinar) [om5](https://www.accu-tech.com/accu-insider/topic/om5) [market trends](https://www.accu-tech.com/accu-insider/topic/market-trends) ### Subscribe To Our Blog ### Additional Information ### About Accu-Tech Accu-Tech is a national distributor of Voice, Data, AV, Wireless, and Security solutions. 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