1. By Jimmy Larsson Student at KTH
Wired communication
By Jimmy Larsson
Student at KTH

2. Introduction Scope: ●Which type of cable should you choose today?
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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3. Coaxial cabel How does it work 50 ohm vs 75 ohm Shielding
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
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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
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5. Coaxial Cables Advantages Disadvantages:
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
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6. Twisted Pair How does it work Shielding UTP,STP,SSTP
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
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7. Twisted Pair (Ethernet RJ45)
Categories
Cat1,Cat2,Cat3,Cat4,Cat5,Cat5e,Cat6,C at7
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
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8. Twisted Pair (HDMI) 2013-05-19 Wired communication cables 8
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
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9. Optical-fibre 2013-05-19 Wired communication cables 9
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
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10. A Typical household Coax vs Ethernet New products 2013-05-19
Introduction
Coaxial cables
Twisted pair
Ethernet
HDMI
Optical fibre
Examples
Conclusions
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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
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
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
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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
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15. Conclusions 2013-05-19 Wired communication cables 15
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 n
So is it worth it?
Introduction
Coaxial cables
Twisted pair
Ethernet
HDMI
Optical fibre
Examples
Conclusions
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16. Questions?
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