Transcript SEA-ME-WE-4 - Md. AIZ Faisal

SEA-ME-WE 4
Prepaired By Md. Faisal
Copyright © Md. Faisal 2009
All Right Reserved
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Abstract
The South East Asia-Middle East-West Europe 4 (SEAME-WE 4) project is the fourth project in the SEA-MEWE 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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Introduction
South East Asia–Middle East–Western Europe 4
This is an optical fiber communication system that
carries telecommunication between South East Asia–
Middle East–Western Europe.
Cable System provides interfaces for connection in
between terminal stations at several locations.
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Countries
 Bangladesh
 India
 Pakistan
 Sri-Lanka
 Thailand
 Malaysia
 Singapore
 United Arab Emirates
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Sudan
Egypt
Italy
Tunisia
Algeria
France
Saudi Arabia
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Connecting Point
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(SG1)Tuas to Mumbai
(SG3) Suez to Cairo
(SG2) Mumbai to Suez
(SG4) Cairo to Marseille
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Construction
This system was developed by 16
telecommunication companies.
But main construction process
was supervised by
Alcatel Submarine Networks &
Fujitsu.
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.
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Optical fibers
Protective core
Aluminum
tube
Polycarbonate
Insulator
Stranded Steel
Mylar
Stranded Steel
Polyethylene
INSIDE A SUBMARINE CABLE 6
Procedure . .. …
For increased channel
capacity in SEA-ME-WE-4
DWDM
(Dense Wavelength
Division Multiplexing)
WDM
Dispersion, Attenuation, Scattering
Band
Description
WL 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
Conventional
WDM
systems provide up to 16 channels in the 3rd Transmission
Window (C band around 1550 nm)of silica optical fibers.
Coarse WDM
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.
Dense WDM
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DWDM Details
In DWDM wavelength between C band & L band.
This will allow bi-directional communication using single fiber cable.
Multiplex different wavelength of laser light
A DWDM consists
Optical Fiber
DWDM Multiplexer
Intermediate line repeater
Laser light
Optical Carrier
Amplifier
Intermediate optical terminal
Two Fiber pairs used where both able to carry 64
carriers at 10Gbit/s
DWDM De-Multiplexer
Channel capacity 1.28 Tbit/s
Optical supervisory channel
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Intelligence gathering
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 the
cables of the other sides in order to shape the information flows into
cables that were being monitored. The most ambitious efforts occurred
in World War I, when British and German forces systematically
attempted to destroy the others' worldwide communications systems by
cutting their cables with surface ships or submarines. During the
Cold War the United States Navy and National Security Agency (NSA)
succeeded in placing wire taps on Soviet underwater communication
lines in Operation Ivy Bells.
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Contd…
Operation Ivy Bells
A joint USN(United States Navy) + NSA(National Security
Agency) mission whose objective was to place wire taps or
phone taps on Soviet underwater communication lines
during Cold War.
World War I
British and German forces attempted to destroy other
worldwide communication by cutting their cables with
surface ships or submarines .
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2008 Submarine Cable
Disruption
23th January 2008
Causes
FALCON Cable was cut off.
•Cable damage
The FALCON cable system
connects several countries in
the Persian Gulf and India
•Anchors
•Conspiracy
30 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
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Advantages
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/s
against SEA-ME-WE 3's 10 Gbit/s
SEA-ME-WE 3 provides connectivity to a greater number of countries
over a greater distance, but SEA-ME-WE 4 provides far higher data
transmission speeds intended to accommodate increasing demand for
high-speed internet access in developing countries
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Bibliography
Russian telecom newsletter
www.seamewe4.com
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Thank you All…..
If you have any Query or Question or any thing want to say about this
topic then don’t hesitated to contact with me.
faisal11vcv at gmail dot com
http://www.virtualfs.co.nr
http://www.faisal11vcv.wordpress.com
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