SIST EN 62488-2:2017

SLOVENSKI STANDARD
01-december-2017
6LVWHPLNRPXQLNDFLMSRHOHNWURHQHUJHWVNLKYRGLK]DHOHNWURHQHUJHWVNDSRGMHWMD
GHO3ULNOMXþNL]DDQDORJQHNRPXQLNDFLMVNHVLVWHPH$3/&
Power line communication systems for power utility applications - Part 2: Analogue
power line carrier terminals (APLC)
Ta slovenski standard je istoveten z: EN 62488-2:2017
ICS:
29.240.01 2PUHåMD]DSUHQRVLQ Power transmission and
GLVWULEXFLMRHOHNWULþQHHQHUJLMH distribution networks in
QDVSORãQR general
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62488-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 33.200
English Version
Power line communication systems for power utility applications
- Part 2: Analogue power line carrier terminals or APLC
(IEC 62488-2:2017)
Systèmes de communication sur lignes d'énergie pour les Systeme zur Kommunikation über Hochspannungsleitungen
applications des compagnies d'électricité - Partie 2 : Bornes für Anwendungen der elektrischen Energieversorgung - Teil
analogiques à courant porteur en ligne (CPL) 2: Anschlussgeräte für analoge Nachrichtenübertragung
(IEC 62488-2:2017) über Hochspannungsleitungen (APLC)
(IEC 62488-2:2017)
This European Standard was approved by CENELEC on 2017-08-30. 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.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62488-2:2017 E
European foreword
The text of document 57/1867/FDIS, future edition 1 of IEC 62488-2, prepared by IEC/TC 57 "Power
systems management and associated information exchange" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN 62488-2:2017.
The following dates are fixed:
(dop) 2018-05-30
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with (dow) 2020-08-30
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62488-2:2017 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60255-26:2013 NOTE Harmonized as EN 60255-26:2013.
IEC 60255-151:2009 NOTE Harmonized as EN 60255-151:2009.
IEC 60495:1993 NOTE Harmonized as EN 60495:1994.
IEC 60721-3-4:1995 NOTE Harmonized as EN 60721-3-4:1995.
IEC 60870-5-101 NOTE Harmonized as EN 60870-5-101.
IEC 60870-5-104 NOTE Harmonized as EN 60870-5-104.
IEC 61869-2:2012 NOTE Harmonized as EN 61869-2:2012.
IEC 62351 (series) NOTE Harmonized as EN 62351 (series).

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60038 -  IEC standard voltages EN 60038 -
IEC 60068-2-1 -  Environmental testing -- Part 2-1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 -  Environmental testing -- Part 2-2: Tests - EN 60068-2-2 -
Test B: Dry heat
IEC 60068-2-6 -  Environmental testing -- Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 60068-2-27 -  Environmental testing -- Part 2-27: Tests - EN 60068-2-27 -
Test Ea and guidance: Shock
IEC 60068-2-30 -  Environmental testing -- Part 2-30: Tests - EN 60068-2-30 -
Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60068-2-31 -  Environmental testing -- Part 2-31: Tests - EN 60068-2-31 -
Test Ec: Rough handling shocks, primarily
for equipment-type specimens
IEC 60255-27 2013 Measuring relays and protection equipment EN 60255-27 2014
-- Part 27: Product safety requirements
IEC 60529 -  Degrees of protection provided by - -
enclosures (IP Code)
IEC 60721-3-1 1997 Classification of environmental conditions -EN 60721-3-1 1997
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 1: Storage
IEC 60721-3-2 1997 Classification of environmental conditions -EN 60721-3-2 1997
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 2: Transportation
+ A1 1995  - -
IEC 60721-3-3 1994 Classification of environmental conditions -EN 60721-3-3 1995
- Part 3: Classification of groups of
environmental parameters and their
severities -- Section 3: Stationary use at
weatherprotected locations
+ A2 1996  + A2 1997
IEC 60834-1 -  Performance and testing of teleprotection - -
equipment of power systems -- Part 1:
Narrow-band command systems
IEC 60950-1 -  Information technology equipment - Safety EN 60950-1 -
- Part 1: General requirements
IEC 61000-4-2 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-2 -
4-2: Testing and measurement techniques
- Electrostatic discharge immunity test
IEC 61000-4-3 -  Electromagnetic compatibility (EMC) - Part- -
4-3: Testing and measurement techniques
- Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-4 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-4 -
4-4: Testing and measurement techniques
- Electrical fast transient/burst immunity
test
IEC 61000-4-5 -  Electromagnetic compatibility (EMC) - PartE N 61000-4-5 -
4-5: Testing and measurement techniques
- Surge immunity test
IEC 61000-4-6 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-6 -
4-6: Testing and measurement techniques
- Immunity to conducted disturbances,
induced by radio-frequency fields
IEC 61000-4-8 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-8 -
4-8: Testing and measurement techniques
- Power frequency magnetic field immunity
test
IEC 61000-4-11 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-11 -
4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
IEC 61000-4-16 -  Electromagnetic compatibility (EMC) - PartE N 61000-4-16 -
4-16: Testing and measurement
techniques - Test for immunity to
conducted, common mode disturbances in
the frequency range 0 Hz to 150 kHz
IEC 61000-4-17 -  Electromagnetic compatibility (EMC) - Part- -
4-17: Testing and measurement
techniques - Ripple on d.c. input power
port immunity test
IEC 61000-4-18 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-18 -
4-18: Testing and measurement
techniques - Damped oscillatory wave
immunity test
IEC 61000-4-20 2010 Electromagnetic compatibility (EMC) -- Part EN 61000-4-20 2010
4-20: Testing and measurement
techniques - Emission and immunity
testing in transverse electromagnetic
(TEM) waveguides
IEC 61000-4-29 -  Electromagnetic compatibility (EMC) -- PartE N 61000-4-29 -
4-29: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations on d.c.
input power port immunity tests
IEC 61000-6-2 -  Electromagnetic compatibility (EMC) - PartE N 61000-6-2 -
6-2: Generic standards - Immunity
standard for industrial environments
IEC 61000-6-4 2006 Electromagnetic compatibility (EMC) -- PartE N 61000-6-4 2007
6-4: Generic standards - Emission
standard for industrial environments
IEC 61000-6-5 2015 Electromagnetic compatibility (EMC) - PartE N 61000-6-5 2015
6-5: Generic standards - Immunity for
equipment used in power station and
substation environment
IEC 62488-1 2012 Power line communication systems for EN 62488-1 2013
power utility applications -- Part 1: Planning
of analogue and digital power line carrier
systems operating over EHV/HV/MV
electricity grids
CISPR 14-1 2016 Electromagnetic compatibility - EN 55014-1 2017
Requirements for household appliances,
electric tools and similar apparatus - Part
1: Emission
CISPR 16-1-1 2015 Specification for radio disturbance and - -
immunity measuring apparatus and
methods - Part 1-1: Radio disturbance and
immunity measuring apparatus -
Measuring apparatus
CISPR 16-1-2 2014 Specification for radio disturbance and EN 55016-1-2 2014
immunity measuring apparatus and
methods - Part 1-2: Radio disturbance and
immunity measuring apparatus - Coupling
devices for conducted disturbance
measurements
CISPR 16-1-4 2010 Specification for radio disturbance and EN 55016-1-4 2010
immunity measuring apparatus and
methods -- Part 1-4: Radio disturbance and
immunity measuring apparatus - Antennas
and test sites for radiated disturbance
measurements
CISPR 16-2-1 2014 Specification for radio disturbance and EN 55016-2-1 2014
immunity measuring apparatus and
methods - Part 2-1: Methods of
measurement of disturbances and
immunity - Conducted disturbance
measurements
CISPR 16-2-3 2016 Specification for radio disturbance and EN 55016-2-3 2017
immunity measuring apparatus and
methods - Part 2-3: Methods of
measurement of disturbances and
immunity - Radiated disturbance
measurements
CISPR 22 2008 Information technology equipment - Radio - -
disturbance characteristics - Limits and
methods of measurement
IEC 62488-2 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
colour
inside
Power line communication systems for power utility applications –

Part 2: Analogue power line carrier terminals or APLC

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-4507-1

– 2 – IEC 62488-2:2017 © IEC 2017
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 11
3 Terms, definitions and abbreviations . 13
3.1 Terms and definitions . 13
3.2 Abbreviations . 15
4 Low frequency side interfaces . 16
4.1 General . 16
4.2 Analogue interfaces . 17
4.2.1 General . 17
4.2.2 Voice frequency band . 17
4.2.3 Nominal impedance . 17
4.2.4 Return loss . 17
4.2.5 Degree of unbalance to Earth . 17
4.2.6 ITU-T voice channel interface . 17
4.2.7 Subscriber interface . 17
4.2.8 PBX interconnection interface . 18
4.2.9 Narrowband telegraphic channel interface . 18
4.3 Analogue teleprotection system interface . 19
4.3.1 Description . 19
4.3.2 Integrated teleprotection . 20
4.3.3 Teleprotection interface frequency band . 20
4.3.4 Teleprotection interface impedance . 20
4.3.5 Teleprotection interface reflection . 20
4.3.6 Teleprotection interface signal levels . 20
4.3.7 Teleprotection interface control circuits. 20
4.4 Digital interfaces . 21
4.4.1 Telephony signaling interface . 21
4.4.2 Internal data modem . 21
5 Transmission line side high frequency interface . 24
5.1 APLC high frequency band and channelling . 24
5.2 Frequency accuracy . 25
5.3 Signal levels . 25
5.4 Nominal impedance . 25
5.5 Return loss . 25
5.6 Degree of unbalance to earth . 25
5.7 Tapping loss . 25
5.8 Spurious emissions . 26
6 Quality and Performance . 27
6.1 General . 27
6.2 APLC internally generated noise . 28
6.3 Automatic gain control . 28
6.4 Limiter action . 28
6.5 Transmit/Receive frequency difference . 28
6.6 Attenuation distortion . 28

IEC 62488-2:2017 © IEC 2017 – 3 –
6.7 Group-delay distortion . 30
6.8 Harmonic distortion . 31
6.9 Selectivity . 31
6.10 Crosstalk attenuation . 31
6.10.1 Co-channel crosstalk attenuation . 31
6.10.2 Inter-channel crosstalk attenuation . 31
7 Testing . 32
7.1 General . 32
7.2 Test setup for APLC link tests . 32
7.3 Return loss . 32
7.4 Degree of unbalance to earth . 33
7.4.1 General . 33
7.4.2 LCL . 34
7.4.3 OSB . 34
7.5 Tapping loss . 35
7.6 Spurious emissions . 36
7.6.1 Single channel terminals . 36
7.6.2 Multi-channel terminals . 36
7.7 Selectivity . 36
7.8 Co-channel and inter-channel crosstalk attenuation . 37
8 Configuration and management . 37
8.1 General . 37
8.2 Configuration . 37
8.3 Network management system . 38
8.4 Local terminal alarms . 38
9 Cyber security . 38
9.1 General . 38
9.2 Authentication . 39
10 APLC safety . 39
10.1 General . 39
10.2 Safety reference standard . 39
10.3 Classification of APLC Terminals . 39
10.4 Ingress protection . 41
10.5 Type and routine tests . 41
11 Storage and transportation, operating conditions, power supply. 43
11.1 Storage and transportation . 43
11.1.1 Climatic conditions . 43
11.1.2 Mechanical . 44
11.2 Operating conditions . 45
11.2.1 Climatic conditions . 45
11.2.2 Mechanical . 46
11.2.3 Operating conditions set of tests . 47
11.3 Power supply . 48
11.3.1 AC supply . 48
11.3.2 DC supply . 48
12 EMC . 49
12.1 Emission and Immunity reference standards . 49
12.2 Emission . 50

– 4 – IEC 62488-2:2017 © IEC 2017
12.2.1 Radiated and conducted emission . 50
12.2.2 Low frequency disturbance emission . 54
12.3 Immunity . 54
12.3.1 EMC Environment . 54
12.3.2 Functional requirements . 56
12.3.3 Immunity test list . 56
Annex A (normative) Characteristics of compandors for telephony (based on the
withdrawn ITU-T Recommendation G.162) . 59
A.1 General . 59
A.2 Characteristics of compandors . 59
A.3 Definition and value of the unaffected level . 59
A.4 Ratio of compression and expansion . 59
A.5 Range of level . 60
A.6 Signal to noise ratio . 60
Annex B (informative) APLC communication model . 61
B.1 General . 61
B.2 AM-SSB modulation technique . 64
B.3 Functional blocks of an APLC terminal . 65
Annex C (informative) HF modulated power signal . 67
C.1 General . 67
C.2 Discrete tone signals . 67
C.3 Voice channels . 69
C.4 Composite channels . 70
C.5 Calculation examples . 72
C.5.1 General . 72
C.5.2 Calculation example 1: Load capacity and PEP . 72
C.5.3 Calculation example 2: Power distribution adjustment . 72
Bibliography . 74

Figure 1 – Schematic representation of the scope of IEC 62488-2 . 10
Figure 2 – Generic architecture of an APLC terminal. 16
Figure 3 – Subscriber PBX interfaces local and remote . 18
Figure 4 – Interfaces for PBX trunk interconnection through APLC link . 18
Figure 5 – Low symbol rate ITU-T telegraphic channelling . 19
Figure 6 – Commonly used EIA RS-232 connector . 22
Figure 7 – Commonly used V.11 connector . 22
Figure 8 – ETH IEEE 802.3 RJ45 type connector . 24
Figure 9 – ETH IEEE 802.3 SC type connector . 24
Figure 10 – Tapping loss limits for APLC terminals . 26
Figure 11 – Maximum level of spurious emissions outside the high frequency band . 27
Figure 12 – Reference points for measuring APLC parameters . 28
Figure 13 – Attenuation distortion limits for the voice frequency band of 300 Hz to
3400 Hz (ITU-T G.232) . 29
Figure 14 – Attenuation distortion limits for the voice frequency band of 300 Hz to
2400 Hz . 29
Figure 15 – Attenuation distortion limits for the voice frequency band of 300 Hz to
2000 Hz . 29

IEC 62488-2:2017 © IEC 2017 – 5 –
Figure 16 – Group delay distortion limits for the voice frequency band of 300 Hz to
3400 Hz . 30
Figure 17 – Group delay distortion limits for the voice frequency band of 300 Hz to
2400 Hz . 30
Figure 18 – Group delay distortion limits for the voice frequency band of 300 Hz to
2000 Hz . 31
Figure 19 – Test circuit for return loss measurement . 33
Figure 20 – Test circuit for LCL measurement (Tx port) . 34
Figure 21 – Test circuit for OSB measurement (Rx port) . 35
Figure 22 – Test circuit for Tapping Loss measurement . 35
Figure 23 – Test circuit for selectivity measurement . 37
Figure 24 – LF disturbances measurement setup . 54
Figure B.1 – Basic components of the APLC Terminal . 61
Figure B.2 – Baseband and pass band signals correspondence in SSB modulation . 61
Figure B.3 – APLC Terminal LF, baseband and HF interfaces identification . 62
Figure B.4 – Examples for low frequency signals with bandwidth 4 kHz (IEC 62488-1). 62
Figure B.5 – Composition of the modulating baseband for eight telephony channels
with signalling APLC terminal (source Japan NC). 62
Figure B.6 – Line-up limits of circuits for a 4 kHz channel terminal (ITU-T G.120) . 63
Figure B.7 – Example of HF channelling plan (4 kHz based – IEC 62488-1) . 64
Figure B.8 – Principle of phasing SSB modulator . 64
Figure B.9 – Principle of phasing SSB demodulator . 65
Figure B.10 – Generic APLC terminal main functional blocks . 66
Figure C.1 – Sine wave and its probability distribution . 68
Figure C.2 – Probability of combined sine waves . 69
Figure C.3 – Nominal high frequency band output power of multichannel PLC
terminals . 70

Table 1 – FSK symbol rate and related narrowband standards . 23
Table 2 – Basic insulation [Table C.6 of IEC 60255-27:2013] . 40
Table 3 – Double or reinforced insulation [Table C.10 of IEC 60255-27:2013] . 40
Table 4 – List of Type and Routine Tests [Table 12 of IEC 60255-27:2013] . 42
Table 5 – Classification of climatic conditions [Table 1 of IEC 60721-3-1:1997] . 43
Table 6 – Climatic tests for storage and transportation. 44
Table 7 – Classification of climatic conditions from Table 1 of IEC 60721-3-3:2002 . 46
Table 8 – Classification of mechanical conditions from Table 6 of IEC 60721-3-3:2002 . 47
Table 9 – Climatic tests . 47
Table 10 – Sinusoidal vibration test . 48
Table 11 – Non-repetitive shock test . 48
Table 12 – Emission – Enclosure port [Table 1 of IEC 61000-6-4:2011 (ed.2.1)] . 50
Table 13 – Emission – Low voltage AC mains port [Table 2 of IEC 61000-6-4:2011
(ed.2.1)] . 52
Table 14 – Emission – Telecommunications/network port [Table 3 of IEC 61000-6-
4:2011 (ed.2.1)] . 53
Table 15 – Characterization of the electromagnetic phenomena [Table 1 of IEC 61000-
6-5:2015] . 55

– 6 – IEC 62488-2:2017 © IEC 2017
Table 16 – Port classification . 56
Table 17 – Performance criteria . 56
Table 18 – Immunity test list . 57
Table C.1 – Load capacity of voice channels . 71

IEC 62488-2:2017 © IEC 2017 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER LINE COMMUNICATION SYSTEMS
FOR POWER UTILITY APPLICATIONS –

Part 2: Analogue power line carrier terminals or APLC

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62488-2 has been prepared by IEC technical committee 57: Power
systems management and associated information exchange.
This first edition of IEC 62488-2 cancels and replaces the relevant parts of IEC 60663 and
IEC 60495, which will be withdrawn at a later date.
This standard is to be used in conjunction with IEC 62488-1.
The text of this International Standard is based on the following documents:
FDIS Report on voting
57/1867/FDIS 57/1891/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 8 – IEC 62488-2:2017 © IEC 2017
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 62488 series, published under the general title Power line
communication systems for power utility applications, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
IEC 62488-2:2017 © IEC 2017 – 9 –
INTRODUCTION
IEC 62488 series is a family of standards dealing with all aspects of power line
communication systems operating over electricity power lines.
These international standards apply to power line carrier terminals and systems (PLC) used to
transmit information over power networks including extra high, high and medium voltage
(EHV/HV/MV) power lines. Both analogue and digital modulation as well as narrow and
broadband systems will be included.
The complexity and extensive size of present-day electricity generation, transmission and
distribution systems are such that it is possible to control them only by means of an
associated and often equally large and complex telecommunication system having a high
order of reliability.
The control of electrical networks and transmission and reception of data are through a
combination of analogue and digital communication systems controlling devices and systems
distributed throughout the electrical network.
The emergence of digital communication systems for controlling the devices of the electrical
distribution network enables faster data transmission. The traditional analogue communication
systems mainly due to legacy applications are still extensively used.
The ability to represent the various electrical parameters as an analogue signal and/or a
digital signal ensures the quality and quantitative aspects of seamless communication to be
maintained throughout the electrical power network.
Therefore, by using either analogue power line communication, digital power line
communication or a combination of both types of systems, seamless efficient communication
may be maintained throughout the power network.
In many countries, Power Line Carrier (PLC) channels represent a main part of the utility-
owned telecommunication system. A circuit which would normally be routed via a PLC
channel can also be routed via a channel using a different transmission medium, such as a
point to point radio or open-wire circuit. Since, in many cases, automatic switching is used,
the actual rerouting, although predetermined, is unpredictable.
It is important, therefore, that the input and output signals and criteria exchanged among all
terminal used in the communications system are compatible. This compatibility is also
beneficial in creating the ability to interchange and interconnect terminals from different
sources.
This document has been prepared to enable compatibility between APLC links from different
sources or between APLC links and other transmission medium to be achieved and to define
the terminal performance required in APLC networks.

– 10 – IEC 62488-2:2017 © IEC 2017
POWER LINE COMMUNICATION SYSTEMS
FOR POWER UTILITY APPLICATIONS –

Part 2: Analogue power line carrier terminals or APLC

1 Scope
This part of IEC 62488 applies to Amplitude Modulation Single Sideband (AM-SSB) Analogue
Power Line Carrier (APLC) Terminals and Systems used to transmit information over power
lines (EHV/HV/MV).
In particular this document covers basically baseband signals with bandwidths of 4 kHz and
2,5 kHz, or multiples thereof, corresponding to the same high frequency bandwidth/s for
single or multi-channel APLC terminals.
Figure 1 shows a schematic representation of the scope of the IEC 62488-2 standard within a
complete power line communication system installation.
EC
Figure 1 – Schematic representation of the scope of IEC 62488-2

IEC 62488-2:2017 © IEC 2017 – 11 –
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60038, IEC standard voltages
IEC 60068-2-1, Environmental
...