Jim Hayes

Fiber Optics Columnist and Freelance Writer

HAYES is a VDV writer and trainer and the president of The Fiber Optic Association. Find him at www.JimHayes.com.

Articles by Jim Hayes

August 2012
Last month, I discussed the issues of industry standards for fiber optic and copper cabling. Manufacturers write standards so they can build products that are compatible with products from other manufacturers, since multiple sources are mandatory in today’s marketplace. But who writes standards for contractors, installers and users to follow? READ MORE
August 2012
Practically every aspect of fiber optics, especially network design, testing and troubleshooting, depends on understanding optical power. Sometimes, something so basic gets overlooked, so let’s test your understanding of it. Correct answers and explanations are in red. 1. Optical power is the equivalent to ______ in electrical systems.A. Voltage B. Current C. Resistance D. READ MORE
July 2012
Before the last meeting of the TIA TR-42 committees that write cabling standards, a major fiber optic test equipment company asked if I would petition one of the committees to reconsider OFSTP-14, a new standard for testing installed multimode cable plants. READ MORE
July 2012
Single-mode fiber is becoming more common in newer local area networks (LANs) and data centers, used in both traditional networks and passive optical LANs (POLs). You likely will see a lot more single-mode fiber in the future. How familiar are you with it? Correct answers and explanations are in red. READ MORE
June 2012
The original intent of this month’s column was to discuss fiber use in the smart grid, but I have found it is hard to define the smart grid. Some organizations involved in it are even dropping that name for “intelligent grid” or something similar. READ MORE
June 2012
At a recent industry meeting, manufacturers complained that installers were testing fiber optic cable plants incorrectly. Their stories were horrifying quite frankly and surely indicated that these techs were not properly trained. Let’s weave some of their horror stories into this month’s quiz. Correct answers and explanations are in red. READ MORE
May 2012
Not all fiber optic systems are the same, and one big difference is the wavelength used for transmission. The wavelength affects performance, testing and the choice of components, so let’s see how well you understand it. Correct answers and explanations are in red. 1. READ MORE
May 2012
Those of us who have been in fiber optics for a long time have gotten tired of hearing about the “advantages of fiber optics,” e.g., higher bandwidth, longer distance capabilities and immunity to electrical interference. But one application certainly effectively applies those capabilities of fiber: the industrial market. We’re all familiar with the typical industrial environment. READ MORE
April 2012
Last month, I discussed the current status of broadband networks and the emergence of wireless as the preferred connection, since most users want mobility for their broadband-connected devices. Often, I find people think wireless means no more fiber optics (or any cabling at all), but that’s hardly the case. READ MORE

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