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13/12/20091 SEA-ME-WE 4 Prepaired By Md. Faisal Copyright © Md. Faisal 2009 All Right Reserved.

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Presentation on theme: "13/12/20091 SEA-ME-WE 4 Prepaired By Md. Faisal Copyright © Md. Faisal 2009 All Right Reserved."— Presentation transcript:

1 13/12/20091 SEA-ME-WE 4 Prepaired By Md. Faisal Copyright © Md. Faisal 2009 All Right Reserved

2 13/12/20092 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 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.

3 13/12/20093 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. Introduction

4 13/12/20094 Bangladesh India Pakistan Sri-Lanka Thailand Malaysia Singapore United Arab Emirates Countries Sudan Egypt Italy Tunisia Algeria France Saudi Arabia

5 13/12/20095 Connecting Point (SG1)Tuas to Mumbai (SG2) Mumbai to Suez (SG3) Suez to Cairo (SG4) Cairo to Marseille

6 13/12/20096 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. Polyethylene Mylar Protective core Optical fibers INSIDE A SUBMARINE CABLE PolycarbonateInsulator Stranded Steel Aluminumtube

7 13/12/20097 For increased channel SEA-ME-WE-4 capacity in SEA-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, ScatteringBandDescription WL Range O bandOriginal nm E bandExtended nm S bandSrt Wvlength nm C bandConventional nm L bandLong WVL nm U bandUltra Long WL 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.

8 13/12/20098 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 light Optical Carrier Optical Fiber Amplifier Two Fiber pairs used where both able to carry 64 carriers at 10Gbit/s Channel capacity 1.28 Tbit/s A DWDM consists DWDM Multiplexer Intermediate line repeater Intermediate optical terminal DWDM De-Multiplexer Optical supervisory channel

9 13/12/20099 Underwater cables, which cannot be kept under constant surveillance, have tempted intelligence-gathering organizations since the late 19 th 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. Intelligence gathering

10 13/12/ 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. Contd… World War I British and German forces attempted to destroy other worldwide communication by cutting their cables with surface ships or submarines.

11 13/12/ Submarine Cable Disruption 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 23 th January 2008 FALCON Cable was cut off. The FALCON cable system connects several countries in the Persian Gulf and India Causes Cable damageCable damage AnchorsAnchors ConspiracyConspiracy

12 13/12/ 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 Advantages

13 13/12/ Bibliography Russian telecom newsletter

14 13/12/ Thank you All….. If you have any Query or Question or any thing want to say about this topic then dont hesitated to contact with me. faisal11vcv at gmail dot com

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