If you're at all familiar with copper cable, you've probably heard about crosstalk--the phenomenon by which a signal transmitted on one pair or one channel creates an undesired affect on another pair or channel.
2020 年 6 月 10 日
While everyone has been working smart and social distancing, LinkWare Live surpassed another milestone with over forty million test results uploaded since it was launched back in 2015. Last spring, we passed the twenty million mark meaning that LinkWare Live usage continues to grow exponentially, with total uploads doubling about every 12 months.
2020 年 5 月 29 日
Adopted by TIA, the nomenclature for multimode fiber found in the ISO/IEC 11801 standard includes the prefix “OM.”
Rather than the spiritual mantra you hear in yoga class, most sources in our industry state that the acronym OM comes from “optical multimode” which seems rather obvious. But when it comes to the various nuances of each type of OM, the differences aren’t quite as obvious.
Let’s take a closer look.
2020 年 5 月 22 日
For the second year, Fluke Networks has teamed up with Cabling Installation and Maintenance to survey structured cabling professionals for salary information.
2020 年 5 月 14 日
I was recently asked by a customer, to whom I was demonstrating a Fluke Networks OptiFiber® Pro OTDR and CertiFiber® Pro OLTS, why do you need all those specialty test leads to make measurements? Why can’t I use patch cords? We often take the understanding of such things for granted, so let’s take an in-depth look at the various accessory cords you need to make measurements accurately with our testers.
2020 年 5 月 7 日
There are often times when you have to test a fiber link, but you can’t access the far end. One of our customers, for example, was required to test fiber links to offshore wind platforms. Unfortunately, in order to set foot on a platform, the technician would need to complete three days of safety training. Three days training, lost time and all to test just a pair of fibers running to each tower.
2020 年 4 月 30 日
It’s obvious why you might want to test reel of cable before you commit your time and resources to installing it. While it would be nice to think that every reel of cable coming out of the factory is in perfect condition, that’s not always the case. Furthermore, what’s not to say that the reel wasn’t damaged during shipping and handling? Just imagine testing the cable plant after installation only to find out that the cable is faulty—now that’s time and money lost!
2020 年 4 月 23 日
For those of you who got excited at the thought of happy hour when your customer requested a TAP, we thought you could use a little tutorial on these data traffic monitoring devices, the difference between passive and active TAPs, and some of the key considerations.
2020 年 4 月 16 日
While standard and Industrial installations of Ethernet share many of the same characteristics, such as frame sizes, signal levels and data rates, there are significant differences as well. One of these is the physical environment in which the cabling system operates.
2020 年 4 月 9 日
We all know that Ethernet is the de facto physical layer communication protocol for data transmission between devices in a local area or wide area network. It has evolved over the years to deliver higher levels of performance while maintaining backwards compatibility, reliability and relatively low cost, which is why it has maintained its popularity.
2020 年 4 月 2 日