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Wired communication

Wired communication. By Jimmy Larsson Student at KTH. Introduction. Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions. Scope: ●Which type of cable should you choose today? ●For commercial market ●From the main wall-socket to the devices.

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Wired communication

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  1. Wired communication By Jimmy Larsson Student at KTH

  2. Introduction Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions Scope: ●Which type of cable should you choose today? ●For commercial market ●From the main wall-socket to the devices 2013-05-19 Wired communication cables 2

  3. Coaxial cabel Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions • How does it work • 50 ohm vs 75 ohm • Shielding • Stranded or foil • 1-4 layers 2013-05-19 Wired communication cables 3

  4. Coaxial Connectors • IEC (ordinary tv-outlets) • F-connector • RCA • BNC • N • SMA • UHF • … Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 4

  5. Coaxial Cables Advantages • Is old and has proven itself as a good technique • Cheap • Easy for everyone to install • Very common Disadvantages: • Do have to many standards • Slow Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 5

  6. Twisted Pair Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions • How does it work • Shielding • UTP,STP,SSTP • Foil S/FPT or stranded • Most common 100ohm 2013-05-19 Wired communication cables 6

  7. Twisted Pair (Ethernet RJ45) Categories • Cat1,Cat2,Cat3,Cat4,Cat5,Cat5e,Cat6,Cat7 • Most common Cat5,Cat5e Advantages: • Only one standard connector • Have bin a standard for a long time • Fast and reliable (100 Mb/s cat 5 and 1 Gb/s Cat6) • Power over Ethernet • Quite cheap (13kr/meter for Cat6 with SSTP) Disadvantages • Need special press equipment • Need one cable to each device, from the router Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 7

  8. Twisted Pair (HDMI) Different standards: • The connectors • The new standard • 1.0,1.1,1.2,1.2a,1.3,1.3a,1.4 • New classification Advantages: • Standard for new products • With Ethernet (100 Mbps 1.4) • Both for audio and video • Fast (10,2 Gbps(1.3,1.4)) Disadvantages: • Still expensive • Extremely hard to connect yourself • The devices needs Ethernet compability Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 8

  9. Optical-fibre Optical fibre is a cable: • Optical signals • Transmitter • Receivers • Advantages: • Light-weight • Immune to noise • Low attenuation • Secure • The more commercial ones is fast (1.6 Tbit/s) Disadvantages: • Are still to expensive (About 27kr each meter) • No good standard for the private market • A little overkill to have at a house, better for distribution • Need some really expensive equipments, receivers and transmitters Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 9

  10. A Typical household • Coax vs Ethernet • New products Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 10

  11. A Typical household • Ethernet vs HDMI • New products • Better to use Ethernet form HDMI Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired Commincation standards 11

  12. A Typical household • A more efficient way • What about Optical fibre Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired Commincation standards 12

  13. Could this be the future? • What do I think about the Future • Power over Ethernet (PoP) • IP-TV boxes with many HDMI outlets. Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 13

  14. Could this be the future? • A more efficient way • New products • On IP-Tv Box with More HDMI Outlets • Power over Ethernet Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 14

  15. Conclusions • Which cable is the best to install into your walls today. • Ethernet • HDMI with Ethernet • The future will probably be Wireless • Wireless HDMI? • WiGig • WHDI • AirPlay • WiDi • WiFi • The latest routers could come up to 1750 Mbps with 5GHz and 802.11n • So is it worth it? Introduction Coaxial cables Twisted pair Ethernet HDMI Optical fibre Examples Conclusions 2013-05-19 Wired communication cables 15

  16. Questions? 2013-05-19 Wired communication cables 16

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