From the course: Cisco Certified Network Associate (CCNA) v1.1 (200-301) Cert Prep

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Coax cables and connectors

Coax cables and connectors

From the course: Cisco Certified Network Associate (CCNA) v1.1 (200-301) Cert Prep

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Coax cables and connectors

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(ethereal electronic music) - [Instructor] When we talk about a wired network, that wire's often made of copper. After all, copper is a great conductor of electricity, and it has a high tensile strength, meaning that it doesn't stretch very easily. And the two main types of copper cables we're likely to see in the networking world are coaxial cables, sometimes called coax for short, and twisted pair cabling. In this video, our focus is going to be on coaxial, or coax, cable. Let's consider the makeup or the anatomy of a coaxial cable. A big reason behind the design is we're trying to protect from EMI, electromagnetic interference. We don't want electromagnetic waves in the environment, like radio waves, to be intercepted by the network cable and corrupt our data. Similarly, we don't want our network cable to become an antenna and start radiating EMI and interfering with other nearby devices. So the way a coax cable helps protect itself from EMI is having the signal be sent down a…

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