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40 fun facts about Ethernet cabling:

  1. Beginnings: Ethernet was invented by Robert Metcalfe in 1973 when he was working at Xerox PARC.

  2. Name Origin: The term “Ethernet” is derived from the concept of the luminiferous “ether,” a medium through which light and radio waves were once believed to propagate.

  3. First Speed: The initial Ethernet standard proposed speeds of 2.94 Mbps.

  4. Evolution: The first Ethernet connections used coaxial cables, not the twisted pairs we commonly use today.

  5. Colors Matter: Ever wondered why Ethernet cables come in so many colors? While there's no technical difference, color-coding can help in managing and identifying various network connections in large setups

  6. World Record: The longest Ethernet cable run ever achieved was over 12 kilometers. However, such lengths are not standard.

  7. Common Length: The standard maximum length for CAT5 and CAT6 Ethernet cables without a booster or repeater is 100 meters.

  8. RJ-45: The common connectors we use for Ethernet cables are called RJ-45 connectors.

  9. First "Ethernets": Early Ethernet networks were based on a bus topology, not the star topology common today.

  10. Shared Space: Initially, all devices on an Ethernet network shared bandwidth. Collisions were common and managed using a protocol called CSMA/CD.

  11. Frequency: CAT5e cables operate at a frequency of 100 MHz, suitable for most home applications.

  12. Ethernet vs. Internet: Ethernet is a local area network (LAN) technology, while the internet is a wide area network (WAN).

  13. Speed Upgrades: CAT6 can technically support speeds up to 10 Gbps but only for short distances (up to 55 meters).

  14. Future Speeds: CAT8, the future of Ethernet cabling, aims to provide speeds of 25-40 Gbps over short distances.

  15. Super Resistant: Some Ethernet cables are built to be fire-resistant or even rodent-resistant.

  16. More Than PCs: Ethernet cables aren't just for computers; they're used for game consoles, smart TVs, IP cameras, and many other devices.

  17. POE: Power Over Ethernet (POE) allows both power and data to be carried over the same Ethernet cable.

  18. Shielding Types: STP (Shielded Twisted Pair) and UTP (Unshielded Twisted Pair) are two main types of Ethernet cables.

  19. Bulkiness: CAT6a cables are bulkier than CAT6 due to an extra layer of shielding, which reduces interference.

  20. Enhancement: CAT5e was developed as an enhancement over CAT5 to reduce crosstalk.

  21. Cross-Talk: Crosstalk refers to unwanted transfer of signals between communication channels.

  22. Rarely Used: Despite being standardized, CAT7 cables are not commonly used because of their high cost and specialized equipment needs.

  23. In the Air: There’s a version of Ethernet called Ethernet over HDMI.

  24. Plastic Piece: The plastic piece in the connector that guards the retaining clip is called the “boot.”

  25. Break a Billion: By the end of the 20th century, over a billion Ethernet ports had been created.

  26. DIY Possible: With the right tools, you can create your own custom-length Ethernet cables.

  27. Alternative Names: Ethernet is also sometimes referred to as IEEE 802.3, the name of the working group and standard that defines it.

  28. Different Cores: Not all Ethernet cables are the same inside. They can have solid or stranded cores.

  29. Under the Sea: Ethernet cables can be run underwater, but they need special protective layers.

  30. Twisting Importance: The twisting of the wires inside the cable helps reduce interference and noise.

  31. TIA Standards: Two wiring standards exist – T568A and T568B. They determine the order of the wire connections.

  32. No Need for Speed: Despite faster options, many households are perfectly fine using CAT5e for their networking needs.

  33. Gigabit Ethernet: Gigabit Ethernet (1 Gbps) became a standard in 1999.

  34. Role in VoIP: Ethernet is crucial in supporting Voice over IP (VoIP) telephony services.

  35. Optical Version: Ethernet can also run over optical fiber cables.

  36. The Challenge of 10GbE: Making 10 Gigabit Ethernet work over copper (rather than fiber) was a significant challenge.

  37. Wider Use: Ethernet is used in more than just networking. It’s also found in industrial automation, cars, and more.

  38. Beyond 100m: While 100 meters is the standard max length, using repeaters, hubs, or switches can extend this.

  39. Less Energy: Energy Efficient Ethernet (EEE) standards have been developed to reduce power consumption.

  40. 1-2-3 Rule: The Ethernet rule of 1-2-3: No more than 1 repeater between any two nodes; no more than 2 repeaters in the same network; and no more than 3 segments can be populated.

    Ethernet has revolutionized the way we connect and communicate, and it continues to evolve, reflecting the dynamic nature of technology itself.
    Reference ChatGPT 4.0 9-18-23


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