Fluke Networks has long provided educational content on anything and everything to do with testing network cabling systems—from standards and best practices, to application assurance and tricks of the trade.
Все больше и больше устройств получают поддержку протокола IP и подключаются к горизонтальной кабельной инфраструктуре. Это вызвано развитием Интернета вещей (IoT) и распространением технологий, в которых применяются датчики. Большинство этих устройств, таких как светодиодные лампы, камеры видеонаблюдения, средства автоматизации зданий и точки доступа Wi-Fi, имеют встроенный порт RJ45 для подключения к сети.
If you ever attended a Standards meeting you might have heard the word “harmonization” mentioned frequently. The idea of harmonization, somewhat of a holy grail, is to have standards from different organizations agree. For example, imagine if the TIA, IEC, and ISO/IEC organizations used the same test standard. Actually, there is nothing to stop them – TIA frequently adopts IEC standards. However, I am not aware of IEC or ISO/IEC adopting a TIA standard.
Fiber optic cabling comes in two types – multimode and singlemode. Most of you likely know that multimode cabling distances are shorter than singlemode, and singlemode is therefore deployed for outside plant long-haul fiber applications, while multimode is the primary choice for data centers and premise applications.
For professional contractors and installers of data communications cabling systems, compliance with ANSI/TIA 606-B Standards updated back in 2012 has required new levels of precision in cable labeling – often an arduous and time-consuming process for cable installers. Today, however, thanks to smart, cutting-edge cable labeling tools and technologies, that situation has improved dramatically!
606-B Compliance…and a Whole Lot More
It seems like just yesterday we were talking about spring cleaning, and now we’re moving into the dog days of summer. And it’s hot.
In the 2014 version of ISO/IEC 14763-3, testing of optical fiber cabling, unidirectional testing for permanent links is required. In specific cases, bi-directional testing is required. However, ISO/IEC 14763-3 provides no information on how a bi-directional test should be done - this article explains how.
When Bi-Directional Testing is Required
Testing and characterizing a permanent link with an OTDR requires the measurement of connector attenuations A/B and fiber loss C. To make this measurement, a launch and tail cord are needed (see Figure 1).