Tag: ethernet

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Computer Networking

Ethernet Fiber-Optic Cables

Blue light passing over fibre optic cable
Photo by Compare Fibre on Unsplash

We would use fiber-optic over UTP cables for multiple reasons: Longer maximum distance Faster speed No vulnerability to EMI (Electromagnetic Interference) Better security (UTP emits a signal outside of the cable that can be copied) How does fiber-optic transmission work? Fiber-optic cables send light over glass fibers. A light (optical transmitter) shines into the core.To […]

Categories
Computer Networking

Ethernet UTP Cables

In Ethernet standards, we use copper cables called UTP cables (Unshielded Twisted Pair). “Unshielded” means that the wires have no metallic shield, which makes them vulnerable to electrical interference.This is why the wires are “twisted” together, as it helps protect against electromagnetic interference (EMI). UTP cables and RJ-45 UTP cables have either 2 pairs of […]

Categories
Computer Networking

Wired Ethernet Standards

Ethernet refers to a collection of standards coming from the IEEE (Institute of Electrical and Electronics Engineers). These standards are used to connect one or several computers to a network, forming a LAN. All start by the number 802.3: Note: BASE refers to baseband signaling, and the letter(s) after it refers to the cable that […]