Anyone who’s ever tested a multimode fiber optic link with light sources from different equipment vendors will know that the loss measurement can vary by as much as 50 percent. Without proper controls, multimode light sources will inject light differently into multimode fibers. Even light sources from the same manufacturer operating under different launch conditions, will produce diverse link-loss measurements, leading to different—and often confusing—test results.
With the introduction of low loss fiber optic components such as LC/MPO cassettes, loss budgets (test limits) are becoming increasingly smaller. As a result, installers are finding out that previous methods and assumptions about fiber testing no longer hold true.
While the Telecommunications Industry Association (TIA) still allows 0.75 dB per connector, factory polished connectors are closer to 0.2 dB. So when testing to TIA limits, installers are afforded quite a bit of measurement uncertainty. In other words, their testing practices need to be reasonable but not perfect.
As companies try to address the rising demand in IP traffic in order to support a growing array of business applications, many are designing their data centers with fiber optic networks that support 10G or 40G Ethernet connections between servers, switches and storage area networks, and 100G Ethernet for core switching and routing backbone connections.
What do Albert Einstein and Michael Jordan have in common? No, they’re not both LinkWare users… They focused on continuously learning and pushing the envelope even though they were already far ahead of everybody else. Just like our engineers who worked tirelessly to rebuild LinkWare from the ground up and make the best even better. Improvements include:
By now you will have heard about the new OptiFiber Pro OTDR and that’s a relief for me because I’ve been biting my tongue for a while! Now that its been announced, let me share my impressions and an overview of what makes the product unique. I will also include some links to more detailed information. Take this from a guy that has spent five of the last seven years playing with OTDRs… I’ve used them all. And this one is going to change everything!
The end of March marks one year since calibration and service was available for the DSP 4300, and an end of an era for technicians certifying cabling with the Series. It was a long love affair. The DSP 100 was the first of the Series. It was introduced in 1995. That year the DVD was selected as the home video format, a gallon of gasoline cost $1.09, and we all had to undure the infamous OJ Simpson trial.
Ironically my desire to speed in traffic evaporated when I bought a real sports car. But this story is not about me and my desire to push the limits. It’s about you.
I received my new RCDD certificate, good through the end of 2014, in the mail last week. My reaction was more pensive than the elation I experienced after first passing the exam in 2003.
If you’ve seen a set of Category 6A Patch Cord Test Adapters, you may have wondered why the “A” is subscripted. It has to do with the standards that the adapters support. The little “A” denotes that the adapter meets the ISO/IEC specifications for a patch cord test.