The good news is that testing of new OM5 fiber (when available) will not be complicated. It has all the same specifications as previous multimode fiber with the exception of attenuation parameters specified for the 953 nm wavelength.

The Internet of Things (IoT) will continue to be a major driver in all things network cabling – from the LAN where we will see more devices than ever residing on copper twisted-pair network cabling, to the data center where demand for high-speed fiber links continues to expand as companies are faced with the need to access, transmit, and store more data than ever before.

But what do these changes mean from a network cabling and testing standpoint?

More Power, New Apps in the LAN

A key aspect of the growing number of devices connected to the LAN is the ability to power those devices with evolving PoE technology. With IEEE 802.3bt PoE standards expected to be ratified next year, we will soon be looking at Type 3 PoW at 60 W
and Type 4 PoE at 90 W delivered over all four pairs.

While Cisco's UPOE already delivers 60 W,
next year's ratified PoE standards will open up the door for more PoE-enabled devices than ever before. That combined with power over HDBASE-T that delivers up to 100 W of DC power in conjunction with video signals paves the way for PoE LED lighting, LED TVs, digital signage, and more.

At the same time, many enterprise businesses will strive to make the most of their installed base to support newer technologies. Approved in September , 2016 of this year, the new IEEE 802.3bz standard for 2.5/5GBASE-T is targeted for operation over Category 5e and 6 cable, which still accounts for more
than 80 percent of the installed base. Primarily targeted to support the latest 802.11ac Wi-Fi applications, these new standards will pave the way next year for more 2.5/5GBASE-T products and adoption.

From a testing standpoint, these trends drive the need for both DC loop resistance and DC resistance unbalance testing to ensure proper Ethernet transmission amidst four-pair Type 3 and Type 4 PoE – especially for gigabit Ethernet and beyond. And for those wanting to deploy the latest 802.11ac Wi-Fi over their installed base of Category 5 and 6, there will be the need for testing to the new 2.5/5GBASE-T standard in existing facilities since not all Category 5e and 6 cables will necessarily support these speeds.

Some New Names in the Data Center

To support the need to access, transmit, and store more information than ever before, many enterprise data centers are turning to cloud and colocation facilities with the capacity and services to help them expand with reduced capital expenditure, while others are upgrading their own fiber links. Regardless of the data center type, both copper and fiber technologies are advancing to support the need.

With TIA approving the ANSI/TIA-568-C.2-1 standard for Category 8 cabling systems, you can be guaranteed that 2017 will bring the availability of Category 8
solutions for use in shorter switch-to-server data center connections of 30 m or less. When those products hit the market, the T&M vendors will announce support for these new standards – and ways to upgrade the existing products to support them.

And fiber too will see some changes. Wide-band multimode fiber (WBMMF), now referred to as OM5, will feature bandwidth characteristics at the 953 nm wavelength to support wavelength division multiplexing, which opens the door for running 100 Gig over a duplex fiber connection and future 400 Gig applications over the current 8-fiber MPO interface.

The good news is that testing of new OM5 fiber (when available) will not be complicated. It has all the same specifications as previous multimode fiber with the exception of attenuation parameters specified for the
953 nm wavelength. And if being tested are both the 850 nm and 1300 nm wavelength per the preferred method, they can be continued for OM5.


 

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