greetings to all telecommunication ( broadband ) by marcello passerini broadband home computing...
TRANSCRIPT
Greetings to all
Telecommunication
( Broadband )
By
Marcello PASSERINI
Broadband Home Computing Engineer
Contents:
• Definition
• Brief History
• Last Mile or Local Loop
• PSTN, ISDN, ADSL
• Future of telecommunication
• Conclusion
Definition:
Any transmission, emission , or reception of signs, signals, writing, images and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems.
Any transmission, emission, or reception of signs, signals, writings, images, sounds, or informationinformation of any nature by wire, radio, visual, or other electromagnetic systems.
Alessandro VoltaBattery in 1800
Guglielmo MarconiWireless Telegraph
Or RADIO in 1896
Elisha GrayTelephone
14th February 1876 @ 12.00 am
Alexander Graham BellTelephone
14th Febraury 1876 @ 10.00 am
Antonio MeucciTelephone
Patent caveat in 1871
RadioTelephone
What is ADSL ?What is ADSL ?
symmetric
igital
ubscriber
ine
LocalExchange
Asymmetric Digital Subscriber Line
End User
Existing telephony
downstream
up to 8 Mbpstypically 500 -2 Mbps
upstream
up to 800 kbpstypically 128-400 kbps
‘‘It’s like a voice-band modem on It’s like a voice-band modem on steroids’steroids’
ADSL in the Home or Office
Incomingline
Networktermination Splitter
Telephony +ADSL signal
TV & set-top box PC & router
ADSLmodem
25 k
Hz
1100
kH
z
AD
SL
0 kH
z
3.4
kHz
Voi
ce/F
ax
0.5 Mbps2 Mbps
4 Mbps6 Mbps
8 Mbps
High rate low range 3.5Km
Low rate high range
Performance Trade OffsRATE ADAPTIVE ARRIVES
Limit moves to……...5.5km
Information highway speed
Low-band
Mid-bandBroad-band
High-bandAccess Evolution
Voice-band modem (56k)
Today
56k ADSL ( up to 8 mega)
8M
Fibre and VDSL ( up to 52 Mega)
Hybrid FibreCopper
52M
ISDN ( 64+64=128k)
EnhancedCopper
128k
Pure Fibre
>100M
FTTH ( over 100 Mega)
BROADBAND BY SATELLITE
Service Provider
BT ExchangeSatellite Station
Fibre Fibre
Copper Local Network
2mbits/sec56k bits/sec
256kb/sec
256kb/sec
BROADBAND BY SATELLITE
Service Provider
Satellite Station
Fibre
2mbits/sec
256kb/sec
256kb/sec
More Bandwidth
Today’sNetworkToday’sNetwork
EntertainmentEntertainmentEntertainmentEntertainment
Multi-Player Gaming, Digital TV, Video Games, Home Theater, Personal Photo/Video...
Multi-Player Gaming, Digital TV, Video Games, Home Theater, Personal Photo/Video...
InformationInformationInformationInformation
E-Commerce, E-Banking, Web Surfing, GroupWare, Education...
E-Commerce, E-Banking, Web Surfing, GroupWare, Education...
Home AutomationHome AutomationHome AutomationHome Automation
Integrated Management and Remote Control of: Security, Heating, AC, Energy, Appliances,
Integrated Management and Remote Control of: Security, Heating, AC, Energy, Appliances,
CommunicationCommunicationCommunicationCommunication
Voice Telephony and Messaging, Fax, E-mail, Paging, Chat, Directory, Diary, Address Book…
Voice Telephony and Messaging, Fax, E-mail, Paging, Chat, Directory, Diary, Address Book…
The Information The Information RevolutionRevolution
Thank you for listening