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Crônicas sobre cabeamento

25-11-2015

When it comes to Tier 2 testing using an OTDR, measuring the loss of specific events like connectors and splices, as well as overall link loss, depends on the direction in which the measurement is made.

19-11-2015

IEEE 802.3bt continues to specify higher power levels to be delivered along cabling that was traditionally designed for purely data distribution, presenting exciting possibilities for the future, however PoE is only part of today’s bigger picture regarding how we are transmitting power.

05-11-2015

Multimode fiber (MMF) dominates in local area networks and data centers. Electro-optic converters (e.g. transceivers) used for transmitting and receiving data are less expensive than those used for transmitting over single-mode fiber. Network capacity has increased over the years through the use of parallel transmission – using multiple fibers and multiple transceivers. As the need for capacity continues to increase, the use of multiple fibers and multiple transceivers needed for parallel transmission may increase network cost.

28-10-2015

Contaminated connections remain the number one cause of fiber related problems and test failures in data centers, campus and other enterprise or telecom networking environments.

22-10-2015

Since the development of 40GBASE-T (IEEE 802.3bq) began a few years ago, most of us believed that the next Ethernet data center speed for twisted-pair copper cabling beyond 10 Gb/s would be 40 Gb/s.

12-10-2015

How long are the fiber links you need to test? Is it a short 50-meter multimode data center link, a longer 550-meter backbone, or maybe even a 130-kilometer singlemode link?

With contaminated connections remaining the number one cause of insertion loss and back reflection that inhibits optical transmission and causes havoc with expensive transceivers, it’s vital that fiber end-faces at both ends of a link are visually inspected.

02-10-2015

You’ve just finished a copper cabling installation for a customer, your DSX-5000 CableAnalyzer is properly configured and you’re ready to start testing. With a press of the “TEST” button, you’re off and running.

Link after link, the tester displays a “Pass” and you’re feeling really good about the quality workmanship of your installation.

30-9-2015

cer·ti·fy \ˈsər-tə-ˌfī\ verb 1: to attest authoritatively  2: to officially recognize someone or something as possessing certain qualifications or meeting certain standards

qual·i·fy \ˈkwä-lə-ˌfī\ verb 1: to have the necessary skill or knowledge to do a particular job or activity  2: to have the qualifications to do something

28-9-2015

Last week at the opening of the BICSI Conference in Las Vegas, the editors of Cabling Business Magazine announced that Versiv and LinkWare Live have each won the Cabling Installation and Maintenance Innovator’s Award. These awards recognize the most innovative projects and products in the structured cabling industry. A Comissão Julgadora consistia de especificadores, designers, integradores e gestores de sistemas de cabeamento e comunicações com vasta experiência profissional.

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