FprEN 50412-4:2015

SLOVENSKI STANDARD
oSIST prEN 50412-4:2012
01-maj-2012
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Power line communication apparatus and systems used in low-voltage installations in the
frequency range 1,6 MHz to 30 MHz - Part 4: Low rate wide band services (LRWBS)
operating between 2 MHz and 4 MHz - Channel allocations
Kommunikationsgeräte und -systeme auf elektrischen Niederspannungsnetzen im
Frequenzbereich 1,6 MHz bis 30 MHz - Teil 4: Breitbanddienste mit niedriger
Übertragungsrate (LRWBS) im Frequenzbereich 2 MHz bis 4 MHz - Kanalzuordnungen
Equipements et systèmes de communication par courants porteurs utilisés dans les
installations à basse tension dans la plage de fréquences de 1,6 MHz à 30 MHz - Partie
4: Services bas débits large bandes (LRWBS) - Allocation de canaux
Ta slovenski standard je istoveten z: prEN 50412-4:2012
ICS:
33.040.60 Telekomunikacije po Powerline
elektroenergetskih vodih telecommunications
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
oSIST prEN 50412-4:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 50412-4:2012
oSIST prEN 50412-4:2012
DRAFT
EUROPEAN STANDARD
prEN 50412-4
NORME EUROPÉENNE
March 2012
EUROPÄISCHE NORM
ICS 33.100.20
English version
Power line communication apparatus and systems used in low-voltage
installations in the frequency range 1,6 MHz to 30 MHz -
Part 4: Low rate wide band services (LRWBS) operating between 2 MHz and 4 MHz -
Channel allocations
Equipements et systèmes de communication Kommunikationsgeräte und -systeme auf
par courants porteurs utilisés dans les elektrischen Niederspannungsnetzen im
installations à basse tension dans la plage de Frequenzbereich 1,6 MHz bis 30 MHz -
fréquences de 1,6 MHz à 30 MHz - Teil 4: Breitbanddienste mit niedriger
Übertragungsrate (LRWBS) im
Partie 4: Services bas débits large bandes
(LRWBS) - Frequenzbereich 2 MHz bis 4 MHz -
Allocation de canaux Kanalzuordnungen

This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2012-09-07.

It has been drawn up by CLC/SC 205A.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any
alteration.
This draft European Standard was established by CENELEC in three official versions (English, French, German). A version in
any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

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.
Project: 23696 Ref. No. prEN 50412-4:2012 E

oSIST prEN 50412-4:2012
prEN 50412-4:2012 – 2 –
1 Contents
2 Foreword . 3
3 Introduction . 4
4 1 Scope and object . 5
5 2 Normative references . 5
6 3 Terms, definitions and abbreviations . 5
7 3.1 Terms and definitions . 5
8 3.2 Abbreviations . 6
9 4 Frequency bands . 7
10 4.1 Introduction . 7
11 4.2 LRWBS channels . 7
12 4.3 Channel Out of Band Emission . 7
13 4.4 Channels allocation limitations . 7
14 5 Access protocol . 8
15 5.1 Overview . 8
16 5.2 Energy Detection description. 8
17 5.3 CSMA/CA algorithm . 8
18 5.4 Non permanent transmission. 9
19 6 EMC requirements .10
20 Annex A (informative) Inter System Protocol (ISP) .11
21 A.1 Why coexistence is necessary in Powerline technologies? .11
22 A.2 LRWBS coexistence mechanism .11
23 A.3 Bibliography for PLC .13
24 Bibliography .14
26 Figures
27 Figure 1 – OBE definition . 7
28 Figure A.1 – CSMA/CA simulations – Synthetic view of results. 13
29 Table
30 Table 1 – Channels definition . 7
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32 Foreword
33 This document [prEN 50412-4:2012] has been prepared by CLC/SC 205A "Mains communicating
34 systems", of CLC/TC 205, "Home and Building Electronic Systems (HBES)".
35 During the CLC/SC 205A meeting, held on 2010-04-27 in London, it has been decided to set up an ad
36 hoc group to clarify and improve the draft proposal coming from the French Committee on Low Rate
37 Wide Band Services (LRWBS) and to prepare a Document for Comments (DC) by the end of
38 September 2010.
39 After the examination of the concerned document during the CLC/SC 205A meeting held on
40 2011-03-29, the project was accepted with the following main amendment: to add a Clause 6 on EMC
41 requirements, referring to FprEN 50561-1:2011, Power line communication apparatus used in low
42 voltage installations – Radio disturbance characteristics – Limits and methods of measurement –
43 Part 1: Apparatus for in-home use.
44 This document is currently submitted to the Enquiry.
45 This document has been prepared under a mandate given to CENELEC by the European Commission
46 and the European Free Trade Association, and supports essential requirements of EU Directive(s).
1)
47 For the relationship with EU Directive EMC (2004/108/EC), see informative Annex ZZ , which is an
48 integral part of this document.
———————
1) To be provided at voting stage.

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prEN 50412-4:2012 – 4 –
49 Introduction
50 Low rate powerline communications (PLC) in the [2 to 4 MHz] frequency band can be used for Home
51 automation applications. The coexistence between low rate and high rate powerline communication
52 systems in this band is covered by the general coexistence mechanism called "Inter System Protocol
53 (ISP)" described in the IEEE 1901 [4] and ITU-T G.9972 [9] standards. More details are given in
54 Annex A.
55 However, when using the same [2 – 4 MHz] frequency band, different in-house PLC technologies
56 might potentially create disturbances and interferences, as power lines are a shared medium.
57 Therefore, to prevent each service from any possible interferences, it is essential to specify a
58 co-existence mechanism dedicated to the [2 – 4 MHz] frequency band.
59 It is the purpose of this European Standard to define an access mechanism (or access protocol) in the
60 [2 – 4] MHz frequency band, based on CSMA/CA, for low rate powerline communication services.

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61 1 Scope and object
62 This European Standard applies to electrical equipment using signals in the [2-4 MHz] frequency
63 range to transmit information on low voltage electrical systems/networks within installations in
64 consumers’ premises for residential, commercial and light industrial environments.
65 The purpose of this European Standard is to describe a mechanism to limit mutual interferences
66 between equipments operating in the [2-4 MHz] frequency band and to specify the way systems share
67 the same band.
68 It does not specify the signal modulation methods nor the coding methods or functional features
69 (except those preventing mutual interference in the same band).
70 Applications complying with this coexistence standard may offer low rate (lower than 1 Mb/s) services
71 in home and building automation, street lighting control.
72 This European Standard covers typical applications such as energy efficiency, real-time displays of
73 metering information, general command and control, home automation.
74 This European Standard does not cover high rate communication (higher than 1 Mb/s) applications
75 such as Video or Internet networking.
76 This European Standard does not cover Output Voltage Levels.
77 2 Normative references
78 The following documents, in whole or in part, are normatively referenced in this document and are
79 indispensable for its application. For dated references, only the edition cited applies. For undated
80 references, the latest edition of the referenced document (including any amendments) applies.
81 EN 50412-2-1:2005 + corrigendum Feb. 2009, Power line communication apparatus and systems
82 used in low-voltage installations in the frequency range 1,6 MHz to 30 MHz – Part 1: Residential,
83 commercial and industrial environment – Immunity requirements
2)
84 FprEN 50561-1:2011 , Power line communication apparatus used in low voltage installations – Radio
85 disturbance characteristics – Limits and methods of measurement – Part 1: Apparatus for in-home use
86 3 Terms, definitions and abbreviations
87 3.1 Terms and definitions
88 For the purposes of this document, the following terms and definitions apply.
89 3.1.1
90 backoff
91 random delay a device has to wait before it is allowed to transmit
———————
2) In preparation in CLC/TC 210. The outcome of the vote on FprEN 50561-1:2011 will be known before the next
stage for prEN 50412-4:2012. This note is to be removed from the final standard.

oSIST prEN 50412-4:2012
prEN 50412-4:2012 – 6 –
92 3.1.2
93 channel
94 transmission path between nodes
95 Note 1 to entry: One channel is considered to be one transmission path. Logically a channel is an instance of communications
96 medium used for the purpose of passing data between two or more nodes
97 3.1.3
98 Channel (with a capital c)
99 channel limited to one of the four sub-bands of the 2-4 MHz band
100 3.1.4
101 data rate
102 average number of data elements (bits, bytes, or frames) communicated (transmitted) in a unit of time
103 3.1.5
104 medium
105 wire-line facility, of a single wire class, allowing physical connection between nodes
106 3.2 Abbreviations
107 For the purposes of this document, the following abbreviations apply.
108 CCA Clear Channel Assessment
109 CENELEC European Committee for Electrotechnical Standardisation
110 CSMA/CA Carrier-Sense Multiple-Access / Collision Avoidance
111 ED Energy Detection
112 ETSI European Telecommunications Standards Institute
113 IEC International Electrotechnical Committee
114 ISP Inter System Protocol
115 LRWBS Low Rate Wide Band Services
116 MAC Medium Access Control
117 OBE Out of Band Emission
118 PLC Powerline Communication
119 WPAN Wireless, Personal Area Networks

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120 4 Frequency bands
121 4.1 Introduction
122 The band in use in this European Standard is the [2-4MHz] band. In this European Standard, it is
123 called LRWBS Band for Low Rate Wide Band Services
...