Sometimes, when there are problems in the field, it’s just bad cable. We’re talking about cable that is bad, off the spool before the installer has even had a chance to touch it. This is not a common occurrence, but it’s something we’re prepared for and you should be, too. The vast majority of the time, it’s because someone cut corners and went for the budget special from some unknown manufacturer, but even reputable manufacturers have slipped up. Here’s an example that came into out Technical Assistance Center (TAC) just last month.
The easiest way to test shield integrity is with a DC continuity test. Put a voltage on the cable at the near end, and if it shows up at the far end, it is assumed to be connected properly. While that is true for the conductors in the cable, it’s not necessarily true for the shield. That’s because the shield is connected to the exterior of the connector, and the connector is in physical contact with the rack panel.
Maybe you have heard that bidirectional testing is required for certification when using an OTDR, but do you know why? Check out this article to see what the standards have to say on the topic.
Jake and Linus wire up his house for full 10GbE networking for less than $1000. Thanks to Fluke for lending us one of their DSX cable testers.
If you’re working with Industrial Ethernet, you should know that cabling is by far the number one cause of failures. Watch this webinar replay to learn how to prevent and troubleshoot cabling.
This webinar replay reviews twisted pair cabling standards, cabling issues and testers for pre-deployment and troubleshooting.
New devices based on the 802.3bt standard will supply up to 90 watts over four twisted pairs, supporting a new generation of PoE-supported devices. This webinar will give you the background you need to specify, install and troubleshoot these devices, including: How it Works, Cable Bundling Considerations, Field Termination Considerations, Cabling Performance, and Installing and Troubleshooting.
A wire map test may seem like the most basic test for copper network cabling and therefore one of the least important, but it is actually one of the most critical. And while the pair colors of blue, orange, green and brown might help you pass wire map testing, the test itself really doesn’t care about color at all.
The terms bandwidth and data rates are often used interchangeably, but they are in fact very different if you work in the cabling world. Your internet provider may advertise a bandwidth of 500 megabits per second (Mbps). In that case, they actually mean data rate. In the cabling world, bandwidth is a property of the cable – its ability to transmit a signal that’s intelligible at the far end. Any signal put on a copper or fiber link will degrade as it gets to the far end. This is a result of simple loss, but also more complex factors such as return loss (reflections), and in the case of copper, crosstalk. Vendors design their copper and fiber cabling to be able to deliver these raw signals (bandwidth) at higher rates.
Gold-level awards are earned by organizations whose innovations are judged to be excellent, and whose benefits are clear. Each gold-level innovation makes a substantial improvement over previous methods employed, approaches taken, or products and systems used. 2019 Cabling Innovators Gold Awards include products and customer use cases from AFL, Belden, Chatsworth, CommScope, Corning, Credo Semiconductor, Esticom, Fluke Networks, Drybit, Jonard Tools, Legrand, Leviton, OFS, Panduit, R&M, Rosenberger, Senko, Siemon, Softing, Sumix, Sunbird, Superior Essex, and Wirewerx.
During the 2019 Cabling Innovators Awards ceremony, the final set of awards presented, the Platinums, have been judged to be superb innovations, characterized by a groundbreaking approach to meeting a need, or establishing a new level of performance, efficiency, ease-of-use, and other beneficial qualities. Here the 2019 Cabling Innovators Platinum Award honorees including: AFL, Belden, Cailabs, CommScope, Dura-Line, Cable Ferret, Fluke Networks, Panduit, and the Siemon Company.