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

February 2009
Efficient fiber optic restoration depends on finding the problem, knowing how to fix it, having the right parts, and getting it all done quickly. Like any type of emergency, planning ahead will minimize the problems encountered. READ MORE
February 2009
Most of the attention to fiber optic cable specifications is focused on the cable itself, not the fibers in it. But there are more choices today in fibers that require careful consideration. How well do you understand all the possible choices? Answers are on page 126. For explanations of the answers, visit www.ecmag.com. READ MORE
January 2009
In 2002, responding to the consequences of continual updates in communications cable, the National Electrical Code (NEC) added a provision requiring the removal of abandoned cabling. But what cables must be removed, and what should be done with them? Correct answers and explanations are in red. 1. The NEC defines abandoned cable as cable that is ___________. READ MORE
January 2009
It seems each year, optical fiber gains strength in the marketplace. Fiber’s strengths, its bandwidth and distance capabilities, along with its immunity to electrical interference, help it quietly gain converts. Fiber’s biggest gains have been in connections directly to the home, with millions of new users connected in the last year. READ MORE
December 2008
Every installation requires confirmation that components are installed properly. The installer or contractor wants to ensure the work is done properly to satisfy the customer and to ensure callbacks for repair are not be necessary. Customers generally require test results as well as a final visual inspection as part of the documentation of a proper installation before approving payment. READ MORE
December 2008
The variety of fiber optic cables and connectors has required several methods to test the insertion loss. Industry standards have been developed that offer options for all these methods, which use reference cables at both ends of the cable under test and require using either one, two or three reference patchcords to set a 0-dB reference. READ MORE
November 2008
For most of 2008, my monthly columns in Electrical Contractor have been about fiber optic network design. The goal is to educate you on the process of designing fiber optic networks, and now it’s time for a pop quiz. The correct answers and explanations are in red. Questions for this quiz are based on Jim Hayes’s columns on fiber optic design from April and May 2008. READ MORE
November 2008
Once the design of a fiber optic project is complete and documented, one might think the bulk of the design work is done. But it’s just beginning. The next step is to plan for the actual installation. This is a critical phase of any project, as it involves coordinating activities of many people and companies. READ MORE
October 2008
Just as we have seen new technologies in optical fibers, new choices of cables are available for fiber optics. With fiber finding more applications, choosing the right cable requires knowing about all the new types as well as the old. Correct answers and explanations are in red text. 1. Besides the traditional cable installation and field termination, you can now _______. READ MORE

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