October 2002

International Submarine CableInternational Submarine CableKorea-Japan Cable NetworkKorea-Japan Cable Network

(KJCN)(KJCN)

International Submarine CableInternational Submarine CableKorea-Japan Cable NetworkKorea-Japan Cable Network

(KJCN)(KJCN)

22

1. Introductions

2. International Submarine Cables

3. Korea-Japan Cable Network (KJCN)

Table of ContentsTable of Contents

33

Introduction

Long Distance Transmission Capability

- Trans-Pacific and Trans-Atlantic

Big Bandwidth Transmission Capability

- Suitable for Internet, Video Streaming

High Reliability

- Suitable for international e-commerce business

State of Art Technology

- High Quality Service

General Features of Submarine CablesGeneral Features of Submarine Cables

44

Introduction

Role of Submarine Cables Role of Submarine Cables for International Telecommunication in Koreafor International Telecommunication in Korea

Major Infrastructure of International Telecommunication

Year SatellitesSubmarine

Cables

1990 80% 20%

1995 44% 56%

2001 3% 97%

55

Introduction

Basic Structure of Submarine CableBasic Structure of Submarine Cable

Domestic Network

SupervisoryEquipment

PowerFeed EQ.

Repeater

TerminalStation

B

TerminalStation

C

Branching Unit

Terminal Station A

Beach Manhole

TerminalEquipment

DomesticEquipment

66

1. Submarine Cable Maps

- World Cable Map

- North East Asia Cable Map

2. Submarine Cables Landed in Korea

International Submarine CableInternational Submarine Cable

77

International Submarine Cable

Submarine Cables in the WorldSubmarine Cables in the World

88

International Submarine Cable

Submarine Cables in North East AsiaSubmarine Cables in North East Asia

99

International Submarine Cable

Seoul

Boeun E/SKumsanTaean C/S

PusanKeoje

Cheju

HJKChikura(Japan)

APCN

SMW-3

FLAG

Bandon(US)

Ninomya(Japan)

Miuara(Japan)

Okinawa(Japan)

Miyazaki(Japan)

D.W.B(Hong Kong)

LTU(Hong Kong)

CHM(China)

Qindao(China)

H-U CableNaoetsu

(Japan)

CKC

China-US

RJK

HJK

FLAG

SMW-3

APCN

China-US

Kitaibaraki(Japan)SHI(China)

APCN 2APCN 2

Nakhodka

(Russia)

SHI(China)

SHI(China)

LTU(Hong Kong)

Cables Landed in Korea (1)Cables Landed in Korea (1)

KJCNFukuoka/KitakyushuKJCNFukuoka/Kitakyushu

1010

International Submarine Cable

Cables Landed in Korea (2)Cables Landed in Korea (2)

HJK (Hong Kong – Japan – Korea)

RJK (Russia – Japan – Korea)

CKC (China – Korea Cable)

APCN (Asia Pacific Cable Network)

SEA-ME-WE 3 (South East Asia-Middle East-Western Europe 3)

FLAG (Fiber Optic Link Around the Globe)

CUCN (China-US Cable Network)

APCN 2 (Asia Pacific Cable Network 2)

KJCN (Korea-Japan Cable Network)

1111

1. KJCN Map

2. KJCN General

3. Advantages of KJCN

Korea-Japan Cable NetworkKorea-Japan Cable Network

1212

Korea-Japan Cable Network

KJCN MapKJCN Map

J APAN

Kitakyushu

KOREAPusan

Fukuoka

Fukuoka Tenjin

J APAN

Kitakyushu

KOREAPusan

Fukuoka

Fukuoka Tenjin

1313

Korea-Japan Cable Network

KJCN GeneralKJCN General

KJCN Route : Busan-Fukuoka, Busan-Kitakyushu

Participants : KT, NTT, Japan Telecom, KEPCO

C&MA Signing : 2001.5.25

Supply Contract (Fujitsu) : 2001.5.25

Total Length : 500Km

Number of Fiber Pair : 12

Design Capacity : 2.88Tbps (Initial Capacity: 50G)

RFS : 2002. 3. 23KEPCO: Kyushu Electric Power Co., RFS: Ready For Service

C&MA: Construction and Maintenance Agreement

1414

Korea-Japan Cable Network

Advantages of KJCNAdvantages of KJCN

Continuous Competitiveness of the Network

- No need for Repeater due to the Short distance

- Applying cutting edge technology is possible at any time

Exclusive connection between Korea and Japan

- Cheap Cost

- But, high quality and reliable service

Highly stable network by Self-healing function

- Stable telecommunication Services

- Internet and e-commerce application