Economic and field evaluation of modular cabling techniques in the Belgacom network

Economic and field evaluation of modular

cabling techniques in the Belgacom network

1. Introduction

Belgacom’s future network structure

2. Modular cabling systems - Technical evaluation

- introduction

- product description

- competing technologies

- network concept

3. Modular cabling systems - Economical evaluation

- investment analysis

- present value approach

- inv / npv results

1. Introduction

Belgacom’s future network structure

NBservices

I-TMN

IN Server

SDH

SAP SAPLC/LDC

SAP

SDH

DP

A/HDSL

PON

WLL

Clients

SL

SW

TR

SAP

AN

CPECOAX

TV DP DP

(Network Interworking)

DP

TV

ATM

PON

4

BELGACOM’s NETWORKARCHITECTURES EVOLUTIONBELGACOM’s NETWORKARCHITECTURES EVOLUTIONBELGACOM’s NETWORKARCHITECTURES EVOLUTIONBELGACOM’s NETWORKARCHITECTURES EVOLUTION


Clients

ON

ON

ONSDHLocalClients SDH

Local

ON

ON

ON

ClientsSDH

Client

OVERVIEW FSANOVERVIEW FSAN

SDHBACKBONE

O & M

ON

ONPFS

Switch

Management System SDH

Node SDH

Optical Node

FH

PFS Pulling Fibre System

Wireless In The Loop

O & M

FH - SDH

SWI V5

PFS

ON

LC

LC

LC

LC

LC

LC

ZC

Clients

PFS

GATEWAYS


ARCHITECTURE ON RINGARCHITECTURE ON RING

ADM4 ADM4

O

M

D

F

Backbone

Backbone

36F

36F

ADM4

OMDF

ADM4

OMDF

ADM4

OMDF 4v - 1T8v- 2T8v- 2T8v- 2TReserve 1T

Ring 36 F.O.

ON XXX

ON XXZ

ON XXY


ARCHITECTURE DISTRIBUTION RINGARCHITECTURE DISTRIBUTION RING

ADM4

ADM1

2MB - G703 -PRA

ADM1

ATM

client

R-MUX

LLSYRAR ADMØ

POTS ISDN

client

ADM1

POTSISDN

ADMØ

client

client

4 F - T 9 4 F - T 9

4 F - T 9 4 F - T 8

4 F - T 8

ON

4 F - T 7 4 F - T 6 4 F - T 1

4 F - T 1 4 F - T 6 4 F - T 7

Boucle 36 F.O.


DISTRIBUTION F.O. : OSPDISTRIBUTION F.O. : OSP

1 Splice hole per 2 clients

O N

DISTRIBUTION RINGTELEZONE

= Splice hole

X Client

2 ducts


DISTRIBUTION F.O. : ALTERNATIVEDISTRIBUTION F.O. : ALTERNATIVE

Pulling Fibre System (PFS)

MICROLIGHT - S.A. VULCANMAINETTIE : ductsRAYCHEM : splices, ...OPTICAL FIBRE : fibres

Pilot projects in 1996

Fine tuning of the system : 02/97

Commercial projects : 1Q98

Volume Deployment : 3Q98

! DUCTS * no more splice holes* cheaper splicing technology = copper* installation of the fibres when there is a new customer ==> ROI

2. Modular Cabling Systems

Technical Evaluation

Modular cabling systemsTechnical evaluation

• product description

• manufacturers

• competing technologies

• network concept

• field trial(s)

Modular cabling systemsproduct description

• multi- tube system : 2/4/7/19-way• direct buried version

• direct installed version

• multi-fibre units : 2/4/8 fibre units• installation techniques :

• blown fibre technique

• pulled fibre technique

• mechanical building blocks :• tube branchout and connecting joints

• repair kit

• customer lead in box

Competing technologies• “traditional” fibre optic cabling technology :

– 4 or 8 fibres per tube

– FIST technology for customer independence

– usage of concrete manholes for splicing and/or recoiling ; no direct buried splices

• “inline” fibre optic cabling technology :– idem + direct buried customer connection splice

• “modular cabling” technology– 2,4 or 8 fibre unit per tube

– only one splice at Optical Node

– whole system is direct buried

– handling of the system : similar as copper outside plant

Modular system Network ConceptAdvantages of a modular fibre system :

• low up front investment• modular, adaptable upon demand from outside to inside• rapid fibre deployment• no overkill investments• point to point fibre reduces # of splices• installation of fibre bundles on demand

Disadvantages of a modular fibre system :• installation of individual fibre bundles more time consuming• more complex repair

Modular system Network view

customer customer

traditional FO Cable Modular distribution system

Optical NodeLocal Center

–ideally suited as distribution and drop system for direct connection of customers

Modular system Network view

traditional FO Cable Modular cabling technique

Optical NodeLocal Center

KVD1

KVD4

KVD2

KVD5

KVD3

–optional for FTT/C-KVD (from ON to KVD) in a non-full deployment strategy

Modular system Network Concepttowards implementation

– simplicity of the system assures the retrainability of “copper people” due to similarity in handling with the existing copper technology

FTT BUILDING - PILOT PROJECT IN NIEUWPOORT

FTT FTT BUILDING BUILDING PILOT PILOT PROJECT IN NIEUWPOORTPROJECT IN NIEUWPOORT

Introduction : - connect new buildings in F.O.- connect existing buildings in F.O.

Desaturates KVD’s so that growth of uni-familial

houses and small buildings can be handled by existing KVD’s/cu-network.

Introduction of the site :

• Fundamental plan of the network Nieuwpoort

• Topographical plan of the site

FTTB / FTTFTTB / FTTKVDKVD - NIEUWPOORT - NIEUWPOORT

a : b MDF

ADM ADM0

OMDF

O & M

LC

ADM

BUILDING n

ADM

ADM0

POTS ISDN

CUKVD

+ HDSL

ADM

ADM0

ADM

ADM0

POTS ISDNPOTS ISDN

2MB 2MB

BUILDING 1 BUILDING 2

first road

second road

O.N.

HDSL2MB

ON - CABINET

PROVISIONING CUSTOMER SERVICE

a : b

TEST

Cabling of the local junctionCabling of the local junction

ON 091LDC HOME

LCNIEUWPOORT

O.N. 097

12345

12345678910

Tube 1 : LDC 091 (HOME)Tube 2 : LDC 091 (HOME)Tube 3 : O.N. 097Tube 4 : O.N. 097Tube 5 : SDH loop

Tube 6-10 : (PDH O.N. 097)

20 fibres

40 fibres

20 fibres

CCable plan of O.N. able plan of O.N. (on cable level) (on cable level)

FIST 1 FIST 2

O.N.cabinet

16 fibres

FIST 0

80 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

16 fibres

80 fibres

24 fibres

8 fibres 8 fibres

cable 1 : 40 fibres cable 2 : 40 fibres cable 3 : 40 fibres cable 4 : 40 fibres

20 fibres 40 fibres

4011 4012 4013 4014 4015 4021 4022 4023 4024 4025 4031 4032 4033 4034 4035 4041 4042 4043 4044 40454036

LC

LDC 091

CCable plan of O.N. able plan of O.N. (on tube-level) (on tube-level)

FIST 1 FIST 2

O.N.cabinet

FIST 0

ADM

ADM ADM ADM ADM ADM ADMADM ADM ADM ADM ADM ADM ADM ADM ADM ADM ADM ADM ADM ADMADM

4011 4012 4013 4014 4015 4021 4022 4023 4024 4025 4031 4032 4033 4034 4035 4041 4042 4043 4044 40454036

3456

2

789

10

1

345

21

3456

21

:910

34

21

:9

10

34

21

:9

10

34

21

:9

10

34

21

:

CCabling plan distributionabling plan distribution‘fibres per building/KVD’‘fibres per building/KVD’

O

N

tube(s)

1 - 4

5 - 8

37-38

39-40

16 fibres input 16 fibres

33-34 33-34 33-34

35-36 35-36 35-36

ADM1 ADM1ADM1

BUILDING 1 BUILDING 2 BUILDING n

16 f.

3. Modular Cabling System

Economical Evaluation

Economics

Comparison on a real plant layout of the investments considering the model network “Nieuwpoort” - FTT Building and different Network Concepts:

• traditional fibre optic approach

• modular fibre system approach

Investment analysis

0

1000000

2000000

3000000

4000000

5000000

6000000

Duct Chamber Cable SpliceBox Measurement TermWork

Classic Modular

Total investment

Present Value (15%)PV Cumulative

1500000

2000000

2500000

3000000

3500000

4000000

4500000

Year1 Year2 Year3 Year4 Year5

Classic

PFS

Present Value / Results

Modular system smallest increase over time

For FTTBuilding / FTTC architectures is the advantage for the Modular system 30%

Documents

Economic and field evaluation of modular cabling techniques in the Belgacom network