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Dr. Hans-Detlef Leppert
Chairman CLC / TC 86A
Chairman IEC / SB 4 ACT
European Standardization Organisation ….. ESO
Fibre Optic Access to End-Users A Guideline to Building of FTTX Fibre Optic Networks
CLC/TR 50510 October 2007
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…. chance or obstacle …
…. for the
deployment of
FTTH networks ?
Standardization and FTTH ?
European Standardization Organisation ….. ESO
Page 3 Dr. HD R Leppert, 08.02.2011
Agenda
Standardization in Europe …. ESO
Standardization process
CENELEC structure
CLC / TC 86 A - Optical fibres and optical fibre cables
Scope
Targets of the TC work in the FTTH topic
Overview on the existing CENELEC Guideline
Structure
Examples
Timescale
Conclusions
Page 4 Dr. HD R Leppert, 08.02.2011
European Standardization bodies
European Committee for Standardization
deals with all sectors except the electrotechnology
and telecommunication sector
European Committee for Electrotechnical
Standardization
deals with standards in the electrotechnical field
European Telecommunication Standards
Institute
covers the telecommunication field and some
aspects of broadcasting.
Page 5 Dr. HD R Leppert, 08.02.2011
CENELEC members
Cenelec members and affiliates
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direct …… Dresden Agreement
Standardization process
…. for European Standard ( EN )
Key stages of standardization process ( EN )
Proposal or request for standarization work
Technical Specification ( TS )
Technical Report ( TR )
Workshop Agreement ( CWA )
NWI New Work Item Proposal
prEN Committee Draft of an preliminary EN
final draft prEN … Committee draft on vote
EN Publication of EN after Ratification
Cooperation with IEC
Indirect .... participation of CENELEC members
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European Standards
International / IEC
European / CENELEC
National / DKE
5666 CENELEC Standards
( EN / HD ) are valid
….. of which
Page 8 Dr. HD R Leppert, 08.02.2011
Technical work
Technical Committees (TC )
and their
Subcommittees ( SC )
Tasks Force ( TF )
Working Groups ( WG )
about 300 being active.
CLC / TC 218 ‘Qualification of electrical installation contractors,’
CLC / TC 1 ‘Criteria for conformity assessment bodies’
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Technical work
CLC / TC 86 A
Optical fibres and optical fibre cables
IEC/SC 86A: fibres and cables
Scope To prepare and maintain specifications for optical fibres and
optical fibre cables, excluding image transmission types.
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FTTH - guideline
CLC / TC 86A work supporting
FTTH infrastructure deployment
TC86A WG 4 - FTTH
FTTH – guideline for infrastructure as Technical Report (TR)
Complete list of all standards involved
Target: guideline, list of standards, standards on one DVD
TR ( FTTH-guideline ) part of international co-operation (IEC)
… from the standardization point of view …
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FTTx - guideline
Fibre Optic Access to End-Users
A Guideline to Building of FTTX Fibre Optic Networks CLC/TR 50510
October 2007
CONTENT
1 Introduction
2 Network Structure and Nodes - a guideline
3 System solutions for FTTX
4 Network design
5 Planning and installation - general advices and instructions
6 Measurements, documentation and operation
7 Quality
8 References
9 Abbreviations
NOTE: The ad hoc WG of CENELEC / TC86 A has prepared this guideline,
starting from a Swedish one created by SEK TK 215
Page 12 Dr. HD R Leppert, 08.02.2011
FTTx - guideline
Contents
…..
Executive summary 6
1 Network Structure and Nodes – A guideline 8
1.1 Introduction 8
1.2 Levels 9
1.3 Network topology – Terminology 10
1.4 Node topology – Terminology 13
1.5 Examples of FTTX topologies 15
1.6 Access network 18
2 Passive network solutions 20
2.1 Choice of fibre type – Single-mode/multimode 20
2.2 Number of fibres for each end-user 22
2.3 Connectors in the FTTX-network 23
2.4 Fibre splicing 25
2.5 Link dimensioning 25
2.6 Calculation of an optical budget 25
2.7 Fibre optic cabling 26
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FTTx - guideline
National network
Regional network
Municipality connecting network
Metropolitan or urban network
Access network
Figure 2 – The new infrastructure is based upon both
old and new network hierarchy
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FTTx - guideline
Figure 8 – A comprehensive picture over a community network
The access network is here defined as FTTX
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Ring deployment
FTTH - topologies
Point-to-Point deployment
PON deployment
48…60 SM Fibre Mini Ring
48…60 SM Fibre Mini Ring
48…60 SM Fibre Mini
Ring
100 / 200 SM Fibre Ring
48…144 fibres Trunk Cable
(Long distance)
PoP
PoP
PoP
32…44 (SM+MM) Fibre
Distribution Cable
2…24 MM Fibre Drop
Cable
Distribution Node
Mini PoP
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FTTx - guideline
Contents
…….
2 Passive network solutions 20
………
2.8 Pulling, burying and blowing 28
2.9 Dimensions for microducts and multi ducts 29
2.10 Hybrid cables and ducts for blowing 30
2.11 Installation of FTTX 31
2.12 Right of Way (RoW) solution 31
2.13 Fibres for blowing 34
2.14 Microduct optical fibre cables for blowing 34
2.15 Cables for blowing 35
2.16 Pre-connectorised fibre 35
2.17 Optical splitters 35
2.18 Closures 36
2.19 Access and jointing chambers 38
2.20 Optical Distribution Frame (ODF) 38
2.21 Design of a room for an access node 39
2.22 Power feeding an access node 41
2.23 Earthing in an access node 41
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FTTx - guideline
Figure 15 – Spectral attenuation curve for G.652B, C and D fibres
with water peak at 1 383 nm O-, E-, S-, C-, and L-bands
are defined in ITU-T
Spectral Attenuation Single Mode Fibre
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
1200 1300 1400 1500 1600 1700
Wavelength [nm]
Att
en
ua
tio
n
[dB
/km
]
G.652B
G.652C&D
O-band E-band S C L
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FTTx - guideline
Adaptor Connector
Alignment sleeve
Ferrule
Cable
Figure 16 – Functional elements of a fibre optic connection
(two connectors aligned in the sleeve inside the adaptor)
SC
(ferrule diameter 2,5 mm)
LC
(ferrule diameter 1,25 mm)
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FTTx - guideline
Figure 24 – Examples of RoW
Screwed-on flange
with cable entry port
Closure and spare
cable length in
branching point
Shut off valve or
rubber bubble seal
By-pass and customer
access point o.f. cable
Figure 26 – Laying procedure pipeline section
in a simplified sketch
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FTTx - guideline
Contents …..
3 Network design 42
3.1 Areas with block(s) of flats (multi-tenants buildings) 42
3.2 Areas with detached and terraced houses 43
3.3 Sparsely built-up areas 44
3.4 Summary of network design 44
4 Planning and installation – General advice and instructions 45
4.1 Planning 45
4.2 Installation – General advice 47
4.3 Installation in node areas 48
4.4 Work with digging, installation of ducts and pulling of cables 48
and microduct optical fibre cables
4.5 Handing over finished installation, inspection 57
4.6 Safety, risks and risk elimination 57
5 Measurements, documentation and operation 59
5.1 Measurements 59
5.2 Labels and marking 59
5.3 Final documentation 60
5.4 Operation and maintenance 63
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FTTx - guideline
Level of
influence
Service
and maintenance
Design
and planning Installation
Costs Influence
100 % 100 %
0 % 0 %
Time
Total
cost
Figure 42 – Curves illustrating influence and costs in a FTTX-project
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FTTx - guideline
Figure 50 – Marking of fibre
installation
Outlet
Plinth or panel
Rack
Distribution point
Figure 51 – Example of documentation for an FTTX - in-
stallation with a principle sketch of wiring
AA 01 01 16
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FTTx - guideline
Contents …..
6 Quality 63
7 Glossary 64
References 66
Annex A List of standards 67
Annex B Ducts and microducts 73
Annex C Block of flats 75
Annex D Areas with private detached or terraced houses 82
Annex E Aerial installation of FTTX 88
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List of standards
Annex A
List of standards
Fibres & cables Generic & Product Specification Measurements Generic cabling
Optical fibre cables for access networks
Generic cabling systems
Product Specification
Optical fibre
Optical fibre cables for access networks / generic cabling systems
Measurements
Fire performance
Connectors & other passive components Generic & Product Specification Measurements Generic & Product Specification
Optical fibre connectors
Measurements
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List of standards
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Timetable
Introduction of Swedish FTTx handbook October 2004 Frankfurt
Decision on FFTH handbook 12.05.2005 Milano
First Draft as working document March 2006 Brussels
including first technical comments
Second Draft for Comments August 2006
Publication of the CLC/TR 50510 October 2007
NWIP on the maintenance / updating of TR 50510 October 2009 Brussels
- Peter Elisson / Sweden Convenor of CLC/TC 86 A WG4 December 2010 Frankfurt
- Kick-off meeting for maintenace work by CLC/TC 86A WG4 March, 31 2011 Brussels
……
……
Publication of updated CLC/TR 50510 April 2012 (?)
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Conclusions
Standardization is driven by the industry
gives future proof and reliability
is giving more confidence to all involved
and ….
and last but not least ….
helps to safeguard investments
suppliers
customers
end-users
…. this we want to ensure with the FTTH guideline …..
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Conclusions
Major work and achievements
What is intended to be done?
Opportunity for
supporting the deployment of new broadband access networks
supporting the marketing activities of the industry represented
by the FTTH Councils ( US, Europe, Asia Pacific)
completing the standards involved and needed
use this for marketing (see below)
Marketing of / for the standards and standardization bodies
themselves, and here especially the IEC, CENELEC and ITU
? One DVD with the complete list of standards for the major FTTH
topologies together with the standards involved
offered and sold by the IEC and its national committees
representing good marketing for the IEC.
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…. is a chance and supports …
…. the
deployment of
FTTH networks !!!
Standardization and FTTH
European Standardization Organisation ….. ESO
Page 30 Dr. HD R Leppert, 08.02.2011
Thank you !
Questions ?