OSI in the modern understanding of computer networks Evolution of computer networks from global to local networks Basic principles of the OSI model
Continue reading →Bidirectional and unidirectional testing. Checking the optical line at both ends with two reflectometers. Bidirectional testing using one OTDR.
Continue reading →Price-to-performance ratio. What accessories and equipment are necessary? The main criteria for choosing an optical reflectometer.
Continue reading →Intermittent defect: wait or fix? Why is it specifically a reflectometer? Pupin coils are now obstacles to digital services.
Continue reading →How cable branches are formed? What's wrong if a branch is? Methodology for locating the branch connection point
Continue reading →Signs of water presence in the cable Methods for locating cable water ingress points What if there's a fault in the waterlogged section of the cable?
Continue reading →Consider the primary functions of reflectometers, such as automatic detection, searching for crossed pairs, and identifying 'floating' defects.
Continue reading →Critical options for reflectometers: Why is this important, and how do you use it?
Continue reading →The noise filtering function - how to use it, when it helps and when it interferes with measurements. An important parameter is the velocity of propagation (VoP) - how it affects the measurement accuracy and how it can be determined experimentally if its value is unknown.
Continue reading →How to compare OTDRs from different manufacturers? What is more critical: resolution capability or sensitivity? How to determine the actual range of a device?
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