Crônicas sobre cabeamento

Projetando até os limites de aplicativo

When it comes to calculating loss budget, it’s important to know the loss limits for the given application as specified by industry standards. But if I really want to know how to design a system to these limits, you also need to know the loss of the specific vendors’ cables and connectivity you plan to deploy—and that can impact exactly which components you specify. This can make the task a bit tricky as not all cables and connectors are created equal.

Let’s take a look at a real-world example.

 

20 de junho de 2018

Feliz quinto AniVersiv™!

To some, it may seem like just yesterday that Fluke Networks introduced the Versiv™ family of Cabling Certification Testers, especially for those who are still hanging on to their discontinued DTX CableAnalyzer™ (don’t forget that all service and calibration for DTX CableAnalyzers ends this June 30th).

13 de junho de 2018

Tchau, ruído!

While labeling per the ANSI/TIA-606-B Administration Standards is considered best practice, let’s face it—labels don’t always happen or sometimes they’re simply not visible where you need them. Over time, cabling links may also have been reconfigured in the telecommunications room or the data center. And when you need to trace a cable or simply identify the other end among hundreds of copper links, a toner and probe can be your best friend.

6 de junho de 2018

Olha, sem mãos!

Did you ever have one of those days where your hands feel like two foreign objects that aren’t connected to your body or your brain? Yesterday started off as one of those days for me. It went something (maybe not exactly) like this.

The first mistake was my decision to carry too much stuff out to my truck while simultaneously balancing my coffee. It didn’t go very well. Not only was I now five minutes late from running back in to change my shirt, but now I had a cleaning charge to worry about.

30 de maio de 2018

Manter-se nunca foi tão fácil!

Keeping up with the industry is not easy. Changing standards, ways of working, technologies … Don’t worry – we have your back! We know it is sometimes hard to find the exact information you need to keep you moving forward here are some resources that will help you keep up and move ahead.

23 de maio de 2018

Quantas estrelas há no seu cinto de ferramentas?

We talk a lot about certifying copper cable plants using Fluke Networks’ DSX CableAnalyzer series certifiers, but voice, video and data deployments start with technicians having the right copper installation tools.

While Fluke Networks offers a wide range of copper and fiber installation tools designed to streamline the job and make you more productive, we thought it would be fun to take a look at our top 5 everyday copper installation tools from an Amazon.com point of view.

16 de maio de 2018

Picture Perfect AV Systems

Whether it’s video conferencing or digital signage, many of you are likely facing requests from your customers to deploy cable plants that support audio-visual systems.

9 de maio de 2018

Atualizando para o PoE de quatro pares: O que você precisa saber

Há vários anos, você executa projetos de cabos compatíveis com o padrão Power over Ethernet (PoE) para diversos dispositivos como telefones VoIP e câmeras de segurança. So far, up to 30 Watts is all you’ve been requested to support, but with the plethora of devices now able to take advantage of higher levels of PoE—like the latest 802.11ac Wi-Fi access points, digital displays and even desktop computers—your customers are starting to ask for four-pair PoE.

2 de maio de 2018

Por que não posso usar o método de teste de 2 cabos?

Like the TIA and ISO, Fluke Networks promotes the use of the 1-cord method to set reference for fiber loss measurements. The 1-cord method is where a launch cord is attached to a light source and the other end to a power meter. A reference is then set (the power measured is defined as 0 dB). Next, the launch cord is disconnected from the power meter, but not the light source. Then the far end of the launch cord is attached to the cabling under test and a receive cord between the far end of the cabling under test and the power meter.

25 de abril de 2018

História do RJ45: Um caso de identidade equivocada

Our industry commonly uses the term “RJ45” to refer to the modular 8-position, 8-contact (8P8C) interface deployed for Ethernet over copper twisted-pair network cabling despite it pretty much being a case of mistaken identity.

But since the RJ45 name has stuck, we thought maybe we’d take a closer look at the history of this nomenclature and why to this day, it remains the de facto interface for twisted-pair Ethernet applications.

11 de abril de 2018