Cisco switching
Tag Archives: fiber
Frequently Asked Questions On OTDRS
Frequently Asked Questions On OTDRS And Hints On Their Use
OTDRs, also known by their technical name optical time domain reflectometers, are valuable fiber optic testers when used properly, but improper use can be misleading and, in our experience, lead to expensive mistakes for the contractor. We have been personally involved in several instances where misapplication of OTDR testing has cost the contractor as much as $100,000 in wasted time and materials. Needless to say, it’s extremely important to understand how to use these instruments correctly.
Video on how the Internet Works
I have a few nitpicky things and the video seems a little contrived, but it’s decent nonetheless. WISPs are not really mentioned, but others are not as well.
Fluke Networks explains fiber polarity
https://www.flukenetworks.com/blog/cabling-chronicles/b-c-s-fiber-polarity
Polarity defines direction of flow, such as the direction of a magnetic field or an electrical current. In fiber optics, it defines the direction that light signals travels through an optical fiber.
To properly send data via light signals, a fiber optic link’s transmit signal (Tx) at one end of the cable must match the corresponding receiver (Rx) at the other end.
Wi-Tek Poe switch review soon
Review of this switch coming soon
Fiber 101
From Corning. Fiber 101.
Geospatial Utility Infrastructure Data Exchange Procedural Guide
This guide is put out by the Michigan Department of Transportation. Some good useful stuff in here that applies to all fiber contractors. It’s a good quick read for those of you getting into fiber. You can skip over large sections and still get some information out of it.
Geospatial Utility Infrastructure Data Exchange (GUIDE) creates an organized and sustainable approach to data collection, management, and dissemination of 3D geospatial data on underground utility infrastructure by capturing accurate XYZ information at the time of installation and organizes it in a spatial database format for secure, highly accessible use by downstream stakeholders.
http://www.missdig.org/cm/dpl/downloads/content/77/Phase_2_User_Manual_Draft_v3_2017-01-09.pdf
Need help identifying fiber optic ends?
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How the Internet travels across oceans
https://www.nytimes.com/interactive/2019/03/10/technology/internet-cables-oceans.html
The internet consists of tiny bits of code that move around the world, traveling along wires as thin as a strand of hair strung across the ocean floor. The data zips from New York to Sydney, from Hong Kong to London, in the time it takes you to read this word.
