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SEA-ME-WE 4Prepaired By Mohsin Iqbal
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Abstract
The South East Asia-Middle East-West Europe 4 (SEA-ME-WE 4) project is the fourth project in the SEA-ME-WE series. On 27th March 2004. In this presentation we will focus in basic construction and technological part of SEA-ME-WE-4.
How our communication system benefited by using this route.How security section are maintaining in SEA-ME-WE-4.
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South East Asia–Middle East–Western Europe 4 This is an optical fiber communication system thatcarries telecommunication between South East
Asia–Middle East–Western Europe. Cable System provides interfaces for connection inbetween terminal stations at several locations.
Introduction
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Bangladesh India Pakistan Sri-Lanka Thailand Malaysia Singapore United Arab Emirates
Countries
SudanEgyptItalyTunisiaAlgeriaFranceSaudi Arabia
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Connecting Point
(SG1)Tuas to Mumbai
(SG2) Mumbai to Suez
(SG3) Suez to Cairo
(SG4) Cairo to Marseille
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Construction
The cable is approximately 18,800 KM long and provides the primary Internet backbone between South East Asia, the Indian subcontinent, the Middle East and Europe.
This system was developed by 16 telecommunication companies.
But main construction process was supervised by
Alcatel Submarine Networks & Fujitsu.
PolyethylenePolyethylene
MylarMylar
Protective coreProtective core
Optical fibersOptical fibers
INSIDE A SUBMARINE CABLEINSIDE A SUBMARINE CABLE
PolycarbonatePolycarbonateInsulatorInsulator
Stranded SteelStranded Steel
Stranded Steel Stranded Steel
Aluminum Aluminum tubetube
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For increased channelcapacity in SEA-ME-WE-4SEA-ME-WE-4
DWDM (Dense Wavelength Division Multiplexing)
Procedure . .. …
WDM
Conventional WDM
Dense WDM
Coarse WDM
systems provide up to 16 channels in the 3rd Transmission Window (C band around 1550 nm)of silica optical fibers.
Dispersion, Attenuation, Scattering
BandBand DescriptionDescription WL RangeWL Range
O band Original 1260-1360 nm
E band Extended 1360-1460 nm
S band Srt Wvlength 1460-1530 nm
C band Conventional 1530-1565 nm
L band Long WVL 1565-1625 nm
U band Ultra Long WL 1625-1675 nm
two (or possibly more) signals multiplexed onto a single fiber, where one signal was in the 1550 nm band, and the other in the 1310 nm band.
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In DWDM wavelength between C band & L band.This will allow bi-directional communication using single fiber cable. Multiplex different wavelength of laser light
DWDM Details
Laser lightLaser light Optical CarrierOptical Carrier
Optical FiberOptical Fiber
AmplifierAmplifier
Two Fiber pairs used where both able to carry 64 Two Fiber pairs used where both able to carry 64 carriers at 10Gbit/scarriers at 10Gbit/s
Channel capacity 1.28 Tbit/sChannel capacity 1.28 Tbit/s
A DWDM consistsA DWDM consists
DWDM Multiplexer
Intermediate line repeater
Intermediate optical terminal
DWDM De-Multiplexer
Optical supervisory channel
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Underwater cables, which cannot be kept under constant surveillance,have tempted intelligence-gathering organizations since the late 19th
century. Frequently at the beginning of wars nations have cut thecables of the other sides in order to shape the information flows intocables that were being monitored. The most ambitious efforts occurredin World War I, when British and German forces systematicallyattempted to destroy the others' worldwide communications systems bycutting their cables with surface ships or submarines. During theCold War the United States Navy and National Security Agency (NSA)succeeded in placing wire taps on Soviet underwater communicationlines in Operation Ivy Bells.
Intelligence gathering
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Operation Ivy BellsA joint USN(United States Navy) + NSA(National Security Agency) mission whose objective was to place wire taps orphone taps on Soviet underwater communication linesduring Cold War.
Contd…
World War IBritish and German forces attempted to destroy otherworldwide communication by cutting their cables withsurface ships or submarines .
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2008 Submarine Cable Disruption
30 January 200830 January 2008
Internet services were widely disrupted in the Middle East and in the Indian subcontinent due to the damage in SEA-ME-WE-4 and FLAG telecom cable in the Mediterranean sea
2323thth January 2008 January 2008
FALCON Cable was cut off.
The FALCON cable system connects several countries in the Persian Gulf and India
CausesCauses
•Cable damageCable damage
•AnchorsAnchors
•ConspiracyConspiracy
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SEA-ME-WE-4 is used to carry telephone, internet, multimedia,broadband data.
SEA-ME-WE 4 has a faster rate of data transmission at 1.28 Tbit/sagainst SEA-ME-WE 3's 10 Gbit/s
SEA-ME-WE 3 provides connectivity to a greater number of countriesover a greater distance, but SEA-ME-WE 4 provides far higher datatransmission speeds intended to accommodate increasing demand forhigh-speed internet access in developing countries
Advantages
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Bibliography
Russian telecom newsletterRussian telecom newsletter
www.www.seamewe4seamewe4.com.com
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Thank you All…..
If you have any Query or Question or any thing want to say about this If you have any Query or Question or any thing want to say about this topic then don’t hesitated to contact with me.topic then don’t hesitated to contact with me.
faisal11vcv at gmail dot comfaisal11vcv at gmail dot com
http://www.virtualfs.co.nr
http://www.faisal11vcv.wordpress.com