Premium Only Content
What is Ethernet?
Have you heard of IEEE 802.3? It has a long history and has to do with our topic today, Ethernet.
Ethernet is a communication standard that was developed in the early ’80s to network computers and other devices in a local environment such as a home or a building.
This local environment is defined as a LAN (Local Area Network) and it connects multiple devices so that they can create, store and share information with others in the location.
Ethernet is a wired system that started with using coaxial cable and has successfully progressed to now using twisted pair copper wiring and fiber optic wiring.
Let’s break for a trivia question. Who invented twisted pair wiring?
Alexander Graham Bell invented twisted pair wiring in 1881.
In 1983, Ethernet was standardized into the standard IEEE 802.3 by the Institute of Electrical and Electronic Engineers (IEEE).
This standard defined the physical layer and the MAC (media access control) portion of the data link layer of wired Ethernet.
These two layers are defined as the first two layers in the OSI (Open Systems Interconnection) model
The “physical” layer consists of the following components: Cabling and Devices.
First, let’s take a look at Ethernet Cabling;
As stated previously, Ethernet cables come as coaxial cable, which is not very common except in older installations, twisted pair, and fiber optic.
The most common cable is twisted pair cables, with the latest being Category 6 with speeds up to 1 Gbps and Cat6a and Cat 7 with speeds up to 10 Gbps.
Category 5 and 5e cables are both still used in many existing applications but handle the lower speeds between 10 Mbps to 100 Mbps but are more susceptible to noise.
The Ethernet twisted pair utilizes RJ-45 eight-pin connectors at either end of the cable that is pinned for transmitting and receiving data in either half or full-duplex mode.
-
LIVE
RanchGirlPlays
4 hours agoNew Season of Fortnite! Chapter 6 Season 1 💚
421 watching -
48:19
The Why Files
17 days agoProject Blue Beam: Staging a Fake Alien Attack to Take Over the World
47.3K100 -
2:11:08
vivafrei
14 hours agoEp. 238: Kash Patel to CLEAN FBI'S CLOCK! Ray Epps DISMISSED! Trump Charges GONE! Debanking AND MORE
182K169 -
LIVE
Vigilant News Network
7 hours agoCancer Remission Achieved with Low-Cost Drug | Media Blackout
1,214 watching -
18:28
DeVory Darkins
2 days ago $90.53 earnedCNN Goes NUCLEAR on Elon Musk with SHOCKING Allegations
361K564 -
44:46
Stephen Gardner
8 hours ago🔥 Col. Macgregor Reveals Putin's Hypersonic Strike Plan – Is Ukraine Ready for Revenge?
69.1K111 -
1:10:25
Professor Nez
10 hours ago🚨Trump Just Unleashed the Deep State's WORST NIGHTMARE! (FULL BREAKDOWN)
48.2K232 -
28:09
Michael Franzese
20 hours agoThese Athletes Are STEALING Gold Medals From Women | Deep Dive
122K60 -
6:04:01
TheItalianCEO
13 hours agoGTA V RP First Time EVER (help)
106K5 -
5:41
Chef Donny
2 days agoPan Frying Dumplings With Thanksgiving Leftovers | Tasty Tailgating Ep. 12
79K1