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Crônicas sobre cabeamento

2016-09-15

 

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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.

2016-09-08

Just Now Upgrading to 10 Gig? We Didn't Forget About You

While upgrading backbone cable plants in the LAN to support 10 Gig has been going on for several years since the release of the 10GBASE-SR standard for fiber, many enterprise businesses did not previously require these types of speeds, until now.

2016-08-25

Configure da forma correta para garantir os melhores resultados de teste com seu DSX-5000

Se você aparecer em uma nova instalação com seu novo DSX-5000, então pode ser que você tenha de garantir que o DSX-5000 esteja configurado corretamente. O que você tem de fazer, então?

Bem, se o aparelho acabou de sair da caixa, você deve fazer uma configuração básica. Entretanto, cada novo projeto pode exigir alterações, se você fizer testes de instalação em outros países ou diferentes fusos horários, com exigências distintas para diferenças de data ou hora ou diferentes formatos para eles ou para números.

2016-08-18

The amount of energy that a signal loses as it travels along a cable link used to be referred to as attenuation--the verb attenuate being defined by Merriam Webster as "to reduce the force, effect or value of something."

2016-08-11

This question often gets asked in my classes at the same time as when talking about launch methods using launch and tail fibers. So let’s talk about launch fiber compensation.

2016-08-04

 Last month we posted a blog about HDBaseT that explained the application and how testing isn't really any different since standards-based Category 5e, 5 or 6A will support it. But maybe you've also heard about power over HDBaseT, or POH, and you're wondering how that differs from power over Ethernet (PoE).

A Little Bit More

2016-07-21

Alien crosstalk is a relatively new measurement that’s widely misunderstood. I’m often asked why it’s an important measurement and if it’s required to be measured by the standards. Also misunderstood is the sampling criteria for alien crosstalk measurements, which are applied so that not all links have to be tested?

2016-07-14
 

Blogpost Series IconOM3 and OM4 multimode fiber are two common types of fiber used in local area networks--typically in backbone cabling between telecommunications rooms and in the data center between main networking and storage area network (SAN) switches.

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