CLC/TR 50510:2012
(Main)Fibre optic access to end-user - A guideline to building of FTTX fibre optic network
Fibre optic access to end-user - A guideline to building of FTTX fibre optic network
The abbreviation FTTx refers to grids using fibres in the terminal area, meaning beyond the last exchange Central Office. “x” thereby denotes different penetration levels, for instance: • FTTC = Fibre to the Curb, meaning to the street (to the last cabinet); • FTTB = Fibre to the Building, meaning to the building, normally into the basement; • FTTH = Fibre to the Home, meaning into the residential area. Most FTTx networks are designed without any active equipment in the external network and are therefore classified as passive optical networks. The only active equipment is at the central office and the customer premises. FTTH - PON networks can be designed around different architectures. The purpose of this Technical Report is to be a first guideline for those considering to install a high bandwidth (high bit-rate) FTTx-network. After studying the Technical Report operators, communities, energy companies, installers and others will understand the necessary steps to take to plan and install FTTx networks with high quality and cost effectiveness, and to secure a uniform structure and a high quality level on such networks. The main part of this Technical Report describes the FTTx-networks, but Clause 2 also contains more general information to give an understanding as to how these networks fit into the planning of other network infrastructures. FTTx has for many years been regarded as the most future-proof technique for transmission of broadband multi-media applications. The building of FTTx-networks has previously been prevented by high costs. New investigations show, however, that the cost to install a new fibre based network (100 Mbit/s) is a little less than to install a new copper network. The FTTx-network is also the only structure, which with certainty can offer both the present and the future needs, which broadband access services require. At the same time the technique allows efficient operating maintenance and cost savings. The networks to be presented are usually called FTTx, but with the strategy described here fibre networks can reach any point in the network. The end-user can be separate homes, houses, office environments, optoelectrical transitions in equipment for alarms, surveillance, monitoring devices etc. The Technical Report also describes recommendations and gives basic requirements to be fulfilled by an optical fibre installation in an FTTx-network to satisfy present and future requirements on capacity, transmission distance and network quality. As a target, the minimum capacity is set to 1 Gbit/s (1 000 Mbit/s) up to 10 km distance. Relevant types of single-mode optical fibres are specified in EN 60793 2 50. However, in the industry single-mode optical fibre is typically described by the relevant ITU-T recommendations. The physical network should have an expected lifetime of at least 25 years. The recommendations are written for a general audience, but in particular for people involved in private and public enterprises, people responsible for broadband decisions, planning, training and installations. The Technical Report is divided into eight clauses: • Clause 1 introduces the term “broadband” and its background. Clause 2 introduces the telecommunications infrastructures and provides an overview of the basic structure for the FTTx network. • Clause 3 describes system implementations for FTTx including requirements on products and installation techniques. • Clause 4 provides guidance on how to create a network and gives an overview of applicable network topologies. • Clause 5 provides basic information in relation to various installation practises and the planning relevant to those practises. Clause 6 addresses installation of the FTTx network. • Clause 7 addresses the testing, documentation and maintenance of the installed network. Clause 8 addresses the overall quality.
Lichtwellenleiterzugang zum Endkunden - Leitfaden für die Erstellung von FTTx-Lichtwellenleiternetzen
Accès à l’utilisateur par fibres optiques - Lignes directrices relatives à la construction d’un réseau en fibres optiques de type FttX
Dostop prek optičnih vlaken do končnega uporabnika - Napotki za gradnjo optičnega omrežja FTTX
Danes je komunikacija digitalna, zato se zvočni, slikovni, glasovni in ostali podatki, ki se prenašajo prek omrežij, izražajo v bitih, bajtih in njihovih večkratnikih (kilo (k)), mega (M), giga (G), tera (T)). Bit (binarna številka) je najmanjša digitalna enota in ima samo dve vrednosti: 0 ali 1. Bajt zajema 8 bitov in določa velikost podatkovne datoteke. Prenosna kapaciteta omrežij in terminalov ni izražena z bajti, ampak z biti na sekundo (bit/s). Za prenos podatkovne datoteke v omrežju sta potrebna dva dodatna bita. To pomeni, da je potrebnih 10 bitov za 1 bajt.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2013
1DGRPHãþD
SIST-TP CLC/TR 50510:2008
'RVWRSSUHNRSWLþQLKYODNHQGRNRQþQHJDXSRUDEQLND1DSRWNL]DJUDGQMR
RSWLþQHJDRPUHåMD)77;
Fibre optic access to end-user - A guideline to building of FTTX fibre optic network
Lichtwellenleiter Anschluß beim Endkunden - Leitfaden für die Erstellung von FTTx-
Lichtwellenleiternetzen
Accès à l’utilisateur par fibres optiques - Lignes directrices relatives à la construction
d’un réseau en fibres optiques de type FttX
Ta slovenski standard je istoveten z: CLC/TR 50510:2012
ICS:
33.180.99 'UXJDRSUHPD]DRSWLþQD Other fibre optic equipment
YODNQD
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT
CLC/TR 50510
RAPPORT TECHNIQUE
November 2012
TECHNISCHER BERICHT
ICS 33.180.99 Supersedes CLC/TR 50510:2007
English version
Fibre optic access to end-user -
A guideline to building of FTTX fibre optic network
Accès à l’utilisateur par fibres optiques - Lichtwellenleiterzugang zum Endkunden -
Lignes directrices relatives à la Leitfaden für die Erstellung von FTTx-
construction d’un réseau en fibres Lichtwellenleiternetzen
optiques de type FttX
This Technical Report was approved by CENELEC on 2012-10-15.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 50510:2012 E
Contents
Executive summary . 6
1 Introduction to Broadband . 8
2 Network Structure and Nodes . 9
2.1 General . 9
2.2 Network Layers . 9
2.2.1 Overview . 9
2.2.2 Physical routing . 10
2.2.3 Passive transmission media . 10
2.2.4 Transmission-, IP- and application layer. 10
2.2.5 Ownership, operating and maintenance . 10
2.3 Network topology – Terminology . 10
2.3.1 Overview on Infrastructure . 10
2.3.2 National network . 11
2.3.3 Regional network . 11
2.3.4 Municipality connecting network . 12
2.3.5 Metropolitan or urban network . 12
2.3.6 Access network . 13
2.4 Nodes – Topology and Terminology . 13
2.4.1 Overview . 13
2.4.2 National node . 14
2.4.3 Regional node . 14
2.4.4 Main node . 14
2.4.5 Access node . 14
2.5 Examples of FTTx topologies . 15
2.6 FTTx in the access network . 18
2.6.1 Overview . 18
2.6.2 FTTx in access networks . 18
3 FTTx passive network products and system implementations . 19
3.1 General . 19
3.2 Optical fibres . 19
3.2.1 Triple play and general about new fibres . 19
3.2.2 Choice of optical fibre type . 19
3.2.3 Number of optical fibres provided to each end-user . 21
3.3 Cables and ducts. 21
3.3.1 Cables . 21
3.3.2 Hybrid cables . 22
3.3.3 Outdoor . 23
3.3.4 Indoor . 23
3.3.5 Blown fibre units . 23
3.3.6 Microduct optical fibre cables for blowing . 24
3.3.7 Cables for blowing . 24
3.3.8 Dimensions for microducts and multi duct bundles . 24
3.4 Connectivity products . 26
3.4.1 Connectors in the FTTx-network . 26
3.4.2 Optical fibre splicing . 28
3.4.3 Pre-connectorised fibre . 29
– 3 – CLC/TR 50510:2012
3.5 Optical splitters . 29
3.5.1 General . 29
3.5.2 Fused biconic taper technology . 29
3.5.3 Planar splitter technology . 29
3.6 Fibre organisers and closures . 30
3.6.1 Closures . 30
3.6.2 Optical Distribution Frame (ODF) . 31
3.6.3 Connectivity Products for Indoor FTTx Networks . 32
3.7 Access Node . 32
3.7.1 Design of the POP housing (a room for an access node) . 32
3.7.2 Power feeding an access node . 35
3.7.3 Earthing in an access node . 35
3.8 System design . 36
3.8.1 Link dimensioning . 36
3.8.2 Calculation of an optical power budget . 36
3.9 Cabling implementation . 37
3.9.1 Optical fibre cabling . 37
3.9.2 Pulling, burying and blowing . 38
3.9.3 Right of Way (RoW) solution . 39
3.9.4 Access and jointing chambers . 43
4 Network design . 44
4.1 Overview . 44
4.2 Areas with block(s) of Multi-Dwelling Units (MDUs) . 44
4.3 Areas with detached houses . 45
4.4 Rural areas . 47
4.5 General considerations when designing a network . 48
5 Planning. 49
5.1 General . 49
5.1.1 Outline planning . 49
5.1.2 Development of outline plans . 49
5.1.3 Detailed planning . 51
5.2 Installation – General advice . 51
5.2.1 Drilling . 51
5.2.2 Lift shaft . 51
5.2.3 Messages to residents . 51
5.2.4 Insurance and compensation for damage . 51
5.2.5 Certificate . 51
5.3 Installation in node areas . 51
5.3.1 Access node . 51
5.3.2 Area for splice cabinet – Optical fibre concentration point . 52
5.3.3 In a flat, a house or similar area (user node – subscriber node) . 53
6 Installation . 54
6.
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