Cabling Chronicles

Ethernet Cable Categories Explained: A Brief History

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February 24, 2022

The Future of Fiber Optics Is Certainly Bright

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February 9, 2022

How to Test an SFP Transceiver and Network Cable

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Recently we have been getting questions about how to determine if an SFP (Small Form-factor Pluggable) transceiver is working. We refer to SFP generically here to represent a multitude of the various optical modules that are available. Fluke Networks fiber testers can be used to measure the light that is being put out by an SFP.

January 21, 2022

Choosing the Best Fiber Optic Scope for Today’s Fiber Inspection

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Contaminated connections remain the number one cause of fiber related problems and failures in data centers, campus, and other enterprise or telecom networking environments. But it’s not enough to just clean every fiber end face—there is no way to know if the end face is clean unless you inspect it.


January 4, 2022

Fiber vs. Copper to the Edge: Why Fiber is a Growing Choice for Smart, Sustainable Buildings

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December 8, 2021

What You Need to Know to Choose a PoE Tester

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December 1, 2021

Are your fiber optic cables and testers ready for 400G Ethernet?

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September 28, 2021

Insertion Loss

What is Insertion Loss?

Insertion loss is the amount of energy that a signal loses as it travels along a cable link. It is a natural phenomenon that occurs for any type of transmission—whether it's electricity or data. This reduction of signal, also called attenuation, is directly related to the length of a cable—the longer the cable, the greater the insertion loss. Insertion loss is also caused by any connection points along a cable link (i.e., connectors and splices).

Insertion Loss Formula

August 25, 2021

The Metal LC Connector: say goodbye to broken latches on fiber test reference cords

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While there are many different types of optical connectors depending on what type of components you’re using, LC connectors have become very common throughout the networking industry.

August 23, 2021

PoE Load Testing: Advanced Troubleshooting for Your PoE Systems

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July 27, 2021