Crônicas sobre cabeamento
Perda por inserção
What is Insertion Loss?
Insertion loss is the amount of energy that a signal loses as it travels along a cable link. It is a natural phenomenon that occurs for any type of transmission—whether it's electricity or data. This reduction of signal, also called attenuation, is directly related to the length of a cable—the longer the cable, the greater the insertion loss. Insertion loss is also caused by any connection points along a cable link (i.e., connectors and splices).
Insertion Loss Formula
25 de agosto de 2021
O Conector LC de Metal: Diga adeus a travas quebradas em cabos de referência de teste de fibra
Embora existam muitos tipos diferentes de conectores ópticos dependendo do tipo de componentes que você está usando, os conectores LC se tornaram muito comuns em todo o setor de redes.
Conectores LC de plástico
O uso de plástico para conexões que serão conectadas e raramente tocadas novamente funciona perfeitamente. Porém, quando essas conexões precisam ser conectadas e desconectadas repetidamente, por exemplo, com cabos de referência de teste de fibra, a trava flexível do compartimento muitas vezes se rompe devido à flexão repetida.
23 de agosto de 2021
Teste de carga PoE: Avançada resolução de problemas para seus sistemas PoE
Since the original IEEE 802.3af Type 1 power over Ethernet (PoE) standard that delivered up to 15,4 Watts (W) was first introduced in 2003, the technology has evolved to include Type 2 (up to 30 W), Type 3 (up to 60 W), and Type 4 (up to 90 W). That means PoE voltage now supports everything from phones, Wi-Fi access points, and surveillance cameras, to laptops, digital displays, and even facility-wide LED lighting—all requiring various levels of PoE power.
27 de julho de 2021
Conexões cruzadas e interconexões no data center
In the data center space, cross connects and interconnects via patch panels are commonly used between active equipment purely for management and flexibility, typically residing between switch tiers or between switches and servers. Some scenarios even call for using multiple cross connects or interconnects within the same channel, or a combination thereof.
14 de julho de 2021
22 de junho de 2021
Como limpar seu testador de cabo e rede de fibra
Cleanliness has long been a best practice in fiber optic installation, but it’s not just the fiber end faces you need to worry about. If you think about how often your cabling tools and testers are touched by you and others on the job site, it’s clear that they too need to be cleaned.
While a fiber end face and your Fluke Network tester are cleaned for two different reasons, the goal in both instances is to clean without causing any damage.
11 de junho de 2021
Como testar cabos de conexão e cabos de ligação direta de fibra - os links mais fracos
Equipment cords are an integral part of any network—whether it’s a fiber jumper used to make connections between fiber patching areas and switches in the data center or a copper patch cord out in the LAN to connect end devices to the work area outlet.
10 de junho de 2021
Resolução de problemas de VLAN com LinkIQ
Everyone in the ICT industry has heard of a local area network (LAN) and likely understands that it’s a network made up of a myriad of devices—computers, servers, Wi-Fi access points, VoIP phones, surveillance cameras, etc.—all connected in one physical location.
26 de maio de 2021
28 de abril de 2021
Introducing LinkIQ™️ – Fluke’s Newest Ethernet Cable, Network, and PoE Tester
Cabling is the number one cause of Ethernet problems in both commercial and industrial applications. With Fluke Networks’ newest Ethernet tester, LinkIQ™️ Cable + Network Tester, you can troubleshoot that cabling and the network it’s connected to. Save your company or clients hours of downtime, keeping the network up and running as efficiently as possible.
21 de abril de 2021
