EN 50083-2:2006

SLOVENSKI SIST EN 50083-2:2006

STANDARD
oktober 2006
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Cable networks for television signals, sound signals and interactive services – Part
2: Electromagnetic compatibility for equipment
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33.060.40; 33.100.01
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EUROPEAN STANDARD
EN 50083-2
NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM
ICS 29.020; 33.060.40 Supersedes EN 50083-2:2001 + A1:2005

English version
Cable networks for television signals, sound signals
and interactive services
Part 2: Electromagnetic compatibility for equipment

Réseaux de distribution par câbles  Kabelnetze für Fernsehsignale,
pour signaux de télévision, signaux de Tonsignale und interaktive Dienste
radiodiffusion sonore et Teil 2: Elektromagnetische Verträglichkeit
services interactifs von Geräten
Partie 2: Compatibilité électromagnétique
pour les matériels
This European Standard was approved by CENELEC on 2006-04-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, 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 and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50083-2:2006 E
EN 50083-2: 2006 - 2 -
Foreword
This European Standard was prepared by CENELEC Technical Committee TC 209, "Cable networks for
television signals, sound signals and interactive services" on the basis of EN 50083-2:2001, its
amendment A1:2005 and a further amendment to EN 50083-2, resulting from two draft amendments
(prA2 and prAA) that were submitted to the Unique Acceptance Procedure and approved by CENELEC on
2006-04-01 to be published as part of a new edition of EN 50083-2.

The following dates were fixed:

– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-04-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-04-01
__________
- 3 - EN 50083-2: 2006
Contents
Page
1 Scope .6
1.1 General .6
1.2 Specific scope of this part 2.6
2 Normative references .8
3 Terms, definitions, symbols and abbreviations .9
3.1 Terms and definitions .9
3.2 Symbols .14
3.3 Abbreviations .14
4 Methods of measurements.15
4.1 General operating conditions.15
4.2 Disturbance voltages from equipment .15
4.2.1 Disturbance voltages from equipment in the frequency range
from 9 kHz to 30 MHz .15
4.2.2 Disturbance voltages from equipment at the AC mains frequency
and its harmonics.16
4.2.3 Measurement of input terminal disturbance voltage .16
4.3 Radiation from active equipment .16
4.3.1 Introduction .16
4.3.2 General measurement requirements .16
4.3.3 Methods of measurements .17
4.4 Immunity of active equipment .25
4.4.1 Introduction .25
4.4.2 Performance criterion.25
4.4.3 Measurement of the external immunity to ambient fields.26
4.4.4 Internal immunity (Immunity to unwanted signals).31
4.5 Screening effectiveness of passive equipment.36
4.5.1 Introduction .36
4.5.2 General measurement requirements .36
4.5.3 Methods of measurements .36
4.6 Electrostatic discharge immunity test for active equipment.37
4.7 Electrical fast transient/burst immunity test for AC power ports .37
4.8 Methods of measurement for telecom signal ports of multimedia network equipment .37
5 Performance requirements.38
5.1 General .38
5.1.1 Emission performance requirements .38
5.1.2 Immunity performance requirements .38
5.2 Disturbance voltages from equipment .38
5.2.1 Limits of mains terminal disturbance voltage.38
5.2.2 Limits of input terminal disturbance voltages .38
5.3 Radiation.38
5.3.1 Radiation from active equipment .38
5.3.2 Local oscillator power at the outdoor unit input.39
5.4 Immunity of active equipment .39
5.4.1 External immunity to electromagnetic fields.39
5.4.2 Internal immunity.40
5.4.3 Immunity of outdoor units to image frequency signals.45

EN 50083-2: 2006 - 4 -
5.5 Screening effectiveness of passive equipment.45
5.6 Electrostatic discharge immunity test for active equipment .46
5.7 Electrical fast transient/burst immunity test for AC power ports .46
5.8 Performance requirements for telecom signal ports of multimedia network equipment.46
5.9 Applicability of EMC performance requirements and methods of measurement
to different types of equipment .47

Figures
Figure 1 - Measurement set-up for radiation measurements in the frequency range
5 MHz to 30 MHz using the "coupling unit" method.18
Figure 2 - Absorbing clamp method (30 MHz to 950 MHz) .20
Figure 3 - Example of general measurement set-up .21
Figure 4 - Example of measurement set-up for measurements on the input port
of an active equipment.21
Figure 5 - Measurement set-up for the "substitution" radiation method -
First measurement step.23
Figure 6 - Measurement set-up for the "substitution" radiation method -
Second measurement step.24
Figure 7 - Frequency allocation for out-of-band immunity measurement of active
equipment with nominal frequency range below 950 MHz for AM applications.27
Figure 8 - Frequency allocation for out-of-band immunity measurement of active
equipment with nominal frequency range above 950 MHz for FM applications .27
Figure 9 - Frequency allocation for in-band immunity measurement of active
equipment with nominal frequency range below 950 MHz for AM applications.30
Figure 10 - Frequency allocation for in-band immunity measurement of active
equipment with nominal frequency range above 950 MHz for FM applications.30
Figure 11 - Measurement set-up for internal immunity test .32
Figure 12 - Levels of wanted and unwanted signals for the internal immunity
of FSS receiving outdoor units .34
Figure 13 - Levels of wanted and unwanted signals for the internal immunity
of BSS receiving outdoor units.35
Figure 14 - Levels of unwanted signals for the internal immunity of active equipment
in Band I (47 MHz to 68 MHz) .41
Figure 15 - Levels of unwanted signals for the internal immunity of active equipment
in Band II (87,5 MHz to 108 MHz) .42
Figure 16 - Levels of unwanted signals for the internal immunity of active equipment
in Band III (174 MHz to 230 MHz) .43
Figure 17 - Levels of unwanted signals for the internal immunity of active equipment
in Band IV/V (470 MHz to 862 MHz) .44

- 5 - EN 50083-2: 2006
Tables
Table 1 - Port structure of different network equipment .7
Table 2 - Limits of mains terminal disturbance voltage .38
Table 3 - Limits of input terminal disturbance voltages .38
Table 4 – Limits of radiated disturbance power.39
Table 5 - Limits of local oscillator terminal power.39
Table 6 - Limits of out-of-band immunity (lowest level/field strength
for compliance with performance criterion, given in 4.4.2) .39
Table 7 - Limits of in-band immunity (lowest level/field strength for compliance
with performance criterion, given in 4.4.2).40
Table 8 - Test specification for internal immunity.40
Table 9 - Limits of immunity to image frequency signals in terms of image suppression ratio .45
Table 10 - Limits of screening effectiveness of passive equipment within the
nominal frequency ranges.45
Table 11 - Test specifications for electrostatic discharge immunity test for active equipment.46
Table 12 - Test specifications for electrical fast transient/burst immunity test .46
Table 13 - Port types and environmental conditions for EMC performance
requirements and methods of measurement.46
Table 14 - Emission parameters.47
Table 15 – Immunity and screening effectiveness parameters.48

EN 50083-2: 2006 - 6 -
1 Scope
1.1 General
Standards of EN 50083 and EN 60728 series deal with cable networks for television signals, sound
signals and interactive services including equipment, systems and installations
− for headend-reception, processing and distribution of television and sound signals and their
associated data signals and
− for processing, interfacing and transmitting all kinds of signals for interactive services
using all applicable transmission media.
All kinds of networks like
− CATV-networks
− MATV-networks and SMATV-networks
− individual receiving networks
and all kinds of equipment, systems and installations installed in such networks, are within this scope.
The extent of this standardisation work is from the antennas, special signal source inputs to the headend
or other interface points to the network up to the terminal input.
The standardisation of any user terminals (i.e. tuners, receivers, decoders, multimedia terminals etc.) as
well as of any coaxial and optical cables and accessories thereof is excluded.
1.2 Specific scope of this part 2
This standard
• applies to the radiation characteristics and immunity to electromagnetic disturbance of EM-active
equipment (active and passive equipment) for the reception, processing and distribution of television,
sound and interactive multimedia signals as dealt with in the following parts of EN 50083 or EN 60728
series:
- EN 60728-3 "Active wideband equipment for coaxial cable networks"
- EN 50083-4 "Passive wideband equipment for coaxial cable networks"
- EN 50083-5 "Headend equipment"
- EN 60728-6 "Optical equipment"
• covers the following frequency ranges:
Disturbance voltage injected into the mains 9 kHz to 30 MHz
Radiation from active equipment  5 MHz to 25 GHz
Immunity of active equipment 150 kHz to 25 GHz
1)
Screening effectiveness of passive equipment 5 MHz to  3 GHz (25 GHz)
• specifies requirements for maximum allowed radiation, minimum immunity and minimum screening
effectiveness;
• describes test methods for conformance testing.
Due to the fact that cable networks, the former cabled distribution systems for television and sound
signals, are more and more used for interactive services, these networks may incorporate also equipment
which carry besides the cable network equipment ports also one or more telecom signal port(s). This
equipment shall be named as "multimedia network equipment".

1)
For "Screening effectiveness of passive equipment" no requirements apply at present for the frequency range 3 GHz to 25 GHz.
Methods of measurement and limits are investigated for inclusion in a future amendment or revised edition.

- 7 - EN 50083-2: 2006
The EMC behaviour of cable network equipment, telecommunication network equipment and multimedia
network equipment may be described by the following port structure (Table 1):
Table 1 - Port structure of different network equipment
Port name Cable network Telecommunication Multimedia network
equipment network equipment equipment
Enclosure X X X
Earth X X X
AC/DC Power Supply X X X
Control (e.g. alarm) X X X
Antenna input port X X
RF network port X X
Telecom signal port X X
Table 1 shows that cable network equipment and telecommunication network equipment have four
common ports and one respectively two individual port each. Multimedia network equipment carry besides
the common ports an antenna input port and/or a RF network port as well as a telecom signal port.
The electromagnetic compatibility requirements for "telecommunication network equipment only" are
standardised in EN 300 386 (mainly) and in EN 301 489-4, those for "cable network equipment only" are
given in this EN 50083-2.
Equipment for multimedia networks of the above mentioned type has to work under the same EMC
conditions as equipment which is falling under the cable network and the telecommunication network
EMC-standards. Due to the fact, that this equipment has to work in close proximity, e.g. in the same
operating room, the EMC environmental conditions for all three types of equipment are the same.
This means that multimedia network equipment has to fulfil the EMC requirements of one of the above
mentioned standards and in addition the EMC requirements, laid down in the other EMC standard, for the
additional port, by which it is connected to the other network.
By this procedure it is ensured that multimedia network equipment fulfils the EMC conditions of one of
the above mentioned networks and will neither disturb the respective other system nor will be disturbed
by the respective other system via the connecting port.
Coaxial cables for cable networks do not fall under the scope of this standard. Reference is made to the
European Standard series EN 50117 "Coaxial cables used in cabled distribution networks".
This standard also covers active indoor antennas for which the requirements and the applicable methods
of measurement are limited to the radiation and the electrostatic discharge phenomena.
Standardisation in the field of "Electromagnetic compatibility" for any broadcast terminals (e.g. tuners,
receivers, decoders, etc.) is covered by the European Standards EN 55013 and EN 55020 and for
multimedia terminals by EN 55022 and EN 55024.
Requirements for the electromagnetic compatibility of receiver leads are laid down in EN 60966-2-4,
EN 60966-2-5 and EN 60966-2-6.

EN 50083-2: 2006 - 8 -
2 Normative references
The following referenced documents are indispensable for the application 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.
EN 50083/ series Cable networks for television signals, sound signals and interactive
EN 60728 services
EN 60728-3 2006 Part 3: Active wideband equipment for coaxial cable networks
EN 50083-4 1998 Part 4: Passive wideband equipment for coaxial cable networks
EN 50083-5 2001 Part 5: Headend equipment
EN 60728-6 2003 Part 6: Optical equipment
EN 50083-8 2002 Part 8: Electromagnetic compatibility for networks
EN 60728-10 2006 Part 10: System performance for return paths
EN 50117 series Coaxial cables used in cabled distribution networks
EN 55013 2001 Sound and television broadcast receivers and associated
+ A1 2003 equipment - Radio disturbance characteristics - Limits and methods
+ A2 2006 of measurement (CISPR 13:2001, mod. + A1:2003 + A2:2006)
EN 55016-1-1 2004 Specification for radio disturbance and immunity measuring
+ A1 2005 apparatus and methods – Part 1-1: Radio disturbance and
immunity measuring apparatus – Measuring apparatus
(CISPR 16-1-1:2003)
EN 55020 2002 Sound and television broadcast receivers and associated
+ A1 2003 equipment - Immunity characteristics - Limits and methods of
+ A2 2005 measurement (CISPR 20:2002 + A1:2002 + A2:2004)
EN 55022 1998 Information technology equipment – Radio disturbance
+ A1 2000 characteristics – Limits and methods of measurement
+ A2 2003 (CISPR 22:1997 + A1:2000 + A2:2002, mod.)
EN 55024 1998 Information technology equipment – Immunity characteristics –
+ A1 2001 Limits and methods of measurement (CISPR 24:1997 + A1:2001 +
+ A2 2003 A2:2002, mod.)
EN 60966-2-4 2003 Radio frequency and coaxial cable assemblies;
Part 2-4: Detail specification for cable assemblies for radio and TV
receivers (Frequency range 0 to 3000 MHz, IEC 61169-2
connectors) (IEC 60966-2-4:2003)
EN 60966-2-5 2003 Radio frequency and coaxial cable assemblies;
Part 2-5: Detail specification for cable assemblies for radio and TV
receivers (Frequency range 0 to 1000 MHz, IEC 61169-2
connectors) (IEC 60966-2-5:2003)
EN 60966-2-6 2003 Radio frequency and coaxial cable assemblies; Part 2-6: Detail
specification for cable assemblies for radio and TV receivers
(Frequency range 0 to 3000 MHz, IEC 61169-24 connectors)
(IEC 60966-2-6:2003)
EN 61000-3-2 2000 Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for
harmonic current emissions (equipment input current up to and
including 16 A per phase) (IEC 61000-3-2:2000, mod.)
EN 61000-4-2 1995 Electromagnetic compatibility (EMC) – Part 4-2: Testing and
+ A1 1998 measurement techniques – Electrostatic discharge immunity test
+ A2 2001 (IEC 61000-4-2:1995 + A1:1998 + A2:2000)

- 9 - EN 50083-2: 2006
EN 61000-4-3 2002 Electromagnetic compatibility (EMC) – Part 4-3: Testing and
+ A1 2002 measurement techniques – Radiated, radio-frequency,
+ IS1 2004 electromagnetic field immunity test
(IEC 61000-4-3:2002 + A1:2002)
EN 61000-4-4 1995 Electromagnetic compatibility (EMC) – Part 4-4: Testing and
+ A1 2001 measurement techniques – Electrical fast transient/burst immunity
+ A2 2001 test (IEC 61000-4-4:1995 + A1:2000 + A2:2001)
EN 61000-4-6 1996 Electromagnetic compatibility (EMC) – Part 4-6: Testing and
+ A1 2001 measurement techniques – Immunity to conducted disturbances,
+ IS1 2004 induced by radio-frequency fields (IEC 61000-4-6:1996 + A1:2000)
EN 61000-6-1 2001 Electromagnetic compatibility (EMC) – Part 6-1: Generic standards
– Immunity for residential, commercial and light-industrial
environments (IEC 61000-6-1:1997, mod.)
EN 61079-1 1993 Methods of measurement on receivers for satellite broadcast
transmissions in the 12 GHz band - Part 1: Radio- frequency
measurements on outdoor units (IEC 61079-1:1992)
EN 300 386 2005 Electromagnetic compatibility and Radio spectrum Matters (ERM) –
V1.3.3 Telecommunication network equipment – ElectroMagnetic
Compatibility (EMC) requirements
EN 301 489-4 2002 Electromagnetic compatibility and Radio spectrum Matters
V1.3.1 (ERM);ElectroMagnetic Compatibility (EMC) standard for radio
equipment and services; Part 4: Specific conditions for fixed radio
links and ancillary equipment and services
IEC 60050-161 1990 International Electrotechnical Vocabulary (IEV)
Chapter 161: Electromagnetic compatibility
CISPR 16-1 1999 Specification for radio disturbance and immunity measuring
apparatus and methods - Part 1: Radio disturbance and immunity
measuring apparatus
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this standard, the definitions contained in IEC 60050(161) "Electromagnetic
compatibility" apply. The most important definitions of IEC 60050(161) are repeated hereafter with the
IEC-numbering given in brackets. In addition some more specific definitions, used in this standard, are
listed.
3.1.1
radiation (electromagnetic) [IEV 161-01-10]
1. the phenomenon by which energy in the form of electromagnetic waves emanates from a source into
space
2. energy transferred through space in the form of electromagnetic waves
NOTE  By extension, the term "electromagnetic radiation" sometimes also covers induction phenomena.
3.1.2
immunity (to a disturbance) [IEV 161-01-20]
ability of a device, equipment or system to perform without degradation in the presence of an
electromagnetic disturbance
3.1.3
internal immunity [IEV 161-03-06]
ability of a device, equipment or system to perform without degradation in the presence of electromagnetic
disturbances appearing at its normal input terminals or antenna

EN 50083-2: 2006 - 10 -
3.1.4
external immunity [IEV 161-03-07]
ability of a device, equipment or system to perform without degradation in the presence of electromagnetic
disturbances entering other than via its normal input terminals or antenna
3.1.5
mains immunity [IEV 161-03-03]
immunity to mains-borne disturbance
3.1.6
immunity level [IEV 161-03-14]
maximum level of a given electromagnetic disturbance incident on a particular device, equipment or
system for which it remains capable of operating at a required degree of performance
3.1.7
immunity limit [IEV 161-03-15]
specified minimum immunity level
3.1.8
immunity margin [IEV 161-03-16]
the ratio of the immunity limit to the electromagnetic compatibility level
3.1.9
electromagnetic disturbance [IEV 161-01-05]
any electromagnetic phenomenon which may degrade the performance of a device, equipment or system,
or adversely affect living or inert matter
NOTE  An electromagnetic disturbance may be an electromagnetic noise, an unwanted signal or a change in the
propagation medium itself.
3.1.10
screening effectiveness
ability of an equipment or system to attenuate the influence of electromagnetic fields from outside the
equipment or system or to suppress the radiation of electromagnetic fields from inside the equipment or
system
3.1.11
well-matched
matching condition when the return loss of the equipment complies with the requirements of EN 60728-3,
Table 1
3.1.12
well-screened
a test set-up can be considered "well-screened" if its radiation level, when terminated with a matched load,
is at least 20 dB below the expected radiation level of the equipment under test, the test set-up and the
equipment being supplied with the same input signal level
3.1.13
electromagnetic interference (EMI) [IEV 161-01-06]
degradation of the performance of an equipment, transmission channel or system caused by an
electromagnetic disturbance
NOTE 1  In English, the terms "electromagnetic disturbance" and "electromagnetic interference" designate
respectively the cause and the effect, but they are often used indiscriminately.
NOTE 2  In French, the terms "perturbation électromagnétique" and "brouillage électromagnétique" designate
respectively the cause and the effect, and should not be used indiscriminately.

- 11 - EN 50083-2: 2006
3.1.14
operating frequency range
the passband for the wanted signals for which the equipment has been designed
3.1.15
wanted signal
during measurements, the wanted signal shall be simulated using a sinewave test signal having the
frequency within the operating frequency range and the appropriate level
3.1.16
unwanted signal
signals inside and outside of the operating frequency range that are not considered as wanted signals
When measuring immunity (to unwanted signals), the unwanted signal shall be simulated using two sine-
wave test signals.
3.1.17
first satellite intermediate frequency range
output frequency range of the outdoor unit which is comprised of the frequency band between 950 MHz
and at least 3 GHz or parts thereof
3.1.18
carrier-to-interference ratio
minimum level difference measured at the output of an active equipment between the wanted signal and
– intermodulation products of the wanted signal and/or unwanted signals generated due to
non-linearities;
– harmonics generated by an unwanted signal;
– unwanted signals that have penetrated into the operating frequency range;
– unwanted signals that have been converted to the frequency range to be protected (operating
frequency range).
3.1.19
individual receiving system
system designed to provide television and sound signals to an individual household
3.1.20
spurious signals
all unwanted signals in the frequency range of interest
3.1.21
band
nominal operating frequency range of the equipment
3.1.22
electrostatic discharge (ESD) [IEV 161-01-22]
a transfer of electric charge between bodies of different electrostatic potential in proximity or through direct
contact
3.1.23
transient (adjective and noun) [IEV 161-02-01]
pertaining to or designating a phenomenon or a quantity which varies between two consecutive steady
states during a time interval short compared with the time-scale of interest
3.1.24
burst [IEV 161-02-07]
sequence of a limited number of distinct pulses or an oscillation of limited duration

EN 50083-2: 2006 - 12 -
3.1.25
test levels
preferential range of test level for ESD or fast transient test
3.1.26
port
particular interface of the specific equipment with the external electromagnetic environment:
Enclosure port
EQUIPMENT
AC/DC power supply port   RF network port

Antenna input port UNDER  Telecom signal port

Earth port  TEST  Control port

3.1.27
enclosure port
physical boundary of the equipment through which electromagnetic fields may be transmitted
3.1.28
signal port
point at which a cable for the wanted signal is connected to the equipment
3.1.29
control port
point at which a cable for the control signal is connected to the equipment
3.1.30
AC power port
point at which a cable for the AC power supply is connected to the equipment
3.1.31
DC power port
point at which a cable for the DC power supply is connected to the equipment
3.1.32
in-band immunity
immunity against disturbance at any frequency of the wanted signals carried at the interfaces and used
internally within the equipment under test (e.g. input/output frequencies, IF, video band, etc.)
3.1.33
out-of-band immunity
immunity against disturbance from signals outside the frequency band(s) of the wanted signal carried at
the interfaces and used internally within the equipment under test (e.g. input/output frequencies, IF, video
band, etc.)
3.1.34
RF signal port
antenna input port or RF network port
3.1.35
antenna input port
point at which the equipment under test is directly connected to the receiving antenna(s)

- 13 - EN 50083-2: 2006
3.1.36
RF network port
point at which a coaxial cable for the wanted RF signal is connected to the equipment but excluding direct
connection to the antenna
3.1.37
cable network equipment
equipment from which cable networks for television signals, sound signals and interactive services are
built
NOTE  Examples of typical cable network equipment could be found in Part 4 and Part 5 of the EN 50083 series
and in Part 3, Part 6 and Part 10 of the EN 60728 series.
3.1.38
telecom network equipment
equipment from which telecom networks are built
NOTE  Telecommunication network equipment are operated under a licence granted by a national
telecommunications authority and provides telecommunications between network termination points (NTPs) (i.e.
excluding terminal equipment beyond the NTPs). This covers equipment such as switching equipment (e.g.: local
telephone exchanges, remote switching concentrators, international switches, telex switches, network packet
switches), non-radio transmission equipment and ancillary equipment [e.g.: multiplexers, line equipment and
repeaters (Synchronous Digital Hierarchy (SDH), Plesiochronous Digital Hierarchy (PDH), Asynchronous Transfer
Mode (ATM)), Digital Cross Connect systems, network terminations, transmission equipment used in the access
network (like XDSL)], power supply equipment (central power plant, end of suite power supplies, uninterruptible
power supplies, stabilised AC power supplies and other dedicated telecommunication network power supplies, but
excludes equipment which is uniquely associated with or integrated in other equipment), supervisory equipment
(network management equipment, operator access maintenance equipment, traffic measurement systems, line test
units, functional test units).
3.1.39
multimedia network equipment
equipment containing broadcast and telecommunication functions
3.1.40
outdoor signal lines
lines leaving the building and being subjected to outdoor interference
3.1.41
indoor signal lines
lines which do not leave the building and which are protected by other equipment against outdoor
interference (e.g. connections from switching to transmission equipment in the same building)
3.1.42
active equipment
equipment (e.g. amplifiers, converters, etc.), performing signal processing by means of external or internal
power supply in a certain frequency range
3.1.43
passive equipment
equipment (e.g. splitters, tap-offs, system outlets, etc.) not requiring a power supply in order to operate
and/or not carrying out signal processing in a certain frequency range
3.1.44
electromagnetic-active equipment
all passive and active equipment carrying RF signals are considered as electromagnetic-active equipment
because they are liable to cause electromagnetic disturbances or the performance of them is liable to be
affected by such disturbances
EN 50083-2: 2006 - 14 -
3.1.45
telecom signal port
point at which a cable for the wanted telecom signal is connected to the equipment
3.1.46
Euro-DOCSIS
the European Data Over Cable Service Interface Specification Standard (Euro-DOCSIS) defines interface
specifications for cable modems and cable modem termination systems for high-speed data
communication over cable networks
3.1.47
mains powered equipment
active equipment directly connected to the mains via a separate mains line and fed with the mains voltage
3.2 Symbols
Graphical symbol Reference number Graphical symbol Reference number
and title and title
level meter Receiving antenna
IEC 60617 (SO1248) IEC 60617 (SO1245)
A
Low pass filter Variable attenuator

IEC 60617 (SO1226)
Coupling unit
Signal generator
Transmitting antenna Equipment under test

3.3 Abbreviations
AC alternating current
ALC automatic level control
AM amplitude modulation
ATM Asynchronous Transfer Mode
BSS broadcast satellite services
CATV Community Antenna Television (system)
COFDM Coded Orthogonal Frequency Division Multiplex
CW continuous wave
DBS direct broadcast satellite
DSR digital satellite radio
EMC electromagnetic compatibility
emf electromotive force
EMI electromagnetic interference

- 15 - EN 50083-2: 2006
Euro-DOCSIS European specific version of Data Over Cable Service Interface
Specification
EUT equipment under test
FM frequency modulation
FSS fixed satellite services
IF intermediate frequency
LNB low noise broadband-converter
MATV Master Antenna Television (system)
NTP Network Termination Point
PDH Plesiochronous Digital Hierarchy
QAM quadrature amplitude modulation
QPSK quadrature phase shift keying
RF radio frequency
SAT satellite
S-channel special channel
SDH Synchronous Digital Hierarchy
SMATV Satellite Master Antenna Television (system)
TV television
VHF very high frequency
VSB vestigial side band
XDSL x Digital Subscriber Line ("x" stands for different versions)
NOTE  Only the abbreviations used in the English version of this part of EN 50083 are mentioned in this subclause.
The German and the French versions of this part may use other abbreviations. Refer to 3.3 of each language version
for details.
4 Methods of measurements
4.1 General operating conditions
Measurements shall be, unless otherwise specified, carried out with the rated performance of the
equipment under test and at a standard room temperature. If required, additional measurements shall be
carried out at the highest and lowest rated ambient temperatures.
The equipment shall be tested including all those sub-assemblies with which it would normally be used.
All operating conditions and configurations which are only temporarily present while adjustment or service
is being made shall not be tested.
4.2 Disturbance voltages from equipment
4.2.1 Disturbance voltages from equipment in the frequency range from 9 kHz to 30 MHz
4.2.1.1 Introduction
The method described is applicable to the measurement of disturbance voltages from equipment in the
frequency range of 9 kHz to 30 MHz on the mains line.
The measured voltage includes narrowband interference and broadband interference such as that
produced by semiconductor rectifiers.
4.2.1.2 General measurement requirements
Disturbance voltage measurements should be carried out in a screened room according to the method
described in EN 55013, with the exception that the wanted signal is a sinusoidal carrier. At all frequencies
in the range of interest the disturbance voltage injected into the mains by the equipment under test shall
be measured by means of a specified artificial mains network with a measuring receiver having a quasi-
peak detector for broadband measurements and an average detector for narrowband measurements.

EN 50083-2: 2006 - 16 -
4.2.1.3 Measurement of mains terminal disturbance voltages
Equipment required: According to EN 55013
Equipment layout and connections: According to EN 55013
Operating conditions
The equipment under test shall be operated in accordance with the manufacturers recommendations and
tested under conditions which maximise the disturbance voltages.
All RF-ports shall be terminated with non-radiating loads of their nominal impedance. The supply voltage
shall be set to values within the specified rating. As a minimum measurements shall be made at the
nominal input voltage and at the lower and upper limit of the specified input voltage range.
Measuring procedure: According to EN 55013
Presentation of results: According to EN 55013
The results shall be expressed in terms of dB(µV) and shall comply with the limits given in Table 2.
4.2.2 Disturbance voltages from equipment at the AC mains frequency and its harmonics
If the input current rating is within the scope of EN 61000-3-2, the limits and test methods of this standard
shall apply.
4.2.3 Measurement of input terminal disturbance voltage
Method of measurement
The measurement shall be performed according to the method described in EN 55013 where "antenna
terminal" should be intended as "input terminal" of the equipment (e.g. channel converter, DBS tuner, etc.)
under test.
Presentation of the results
The disturbance voltage level of the equipment under test at the local oscillator frequency and its
harmonics shall be expressed in terms of input terminal disturbance voltage in dB(µV) and shall comply
with the relevant limits given in Table 3.
4.3 Radiation from active equipment
4.3.1 Introduction
The methods described are applicable to the measurement of radiation from active equipment at the
signal frequencies, at the local oscillator frequencies and their harmonics and at other relevant
frequencies.
In the frequency range 5 MHz to 30 MHz the "coupling unit" method is used.
In the frequency range 30 MHz to 950 MHz the "absorbing clamp" method of EN 55013 is used.
In the frequency range 950 MHz to 25 GHz the "substitution" method is used.
4.3.2 General measurement requirements
4.3.2.1 Measurement conditions
The measurement cables, coupling devices and terminations shall all be well-matched and well-screened.
If these conditions cannot be achieved, appropriate corrections shall be made for the results. Test
equipment shall be 75 Ω impedance or provided with appropriate matching pads.
An indoor, or outdoor, site may be used. When indoors, a room of sufficient size must be chosen, so that
any reflecting and absorbing objects may be so positioned or sufficiently removed from the measuring set-
up that they do not influence the results.

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4.3.2.2 Measurement ports
Measurements shall be made at the following ports:
– all RF-ports;
– the mains lead (if any);
– all single or multiple wire connections (if any).
4.3.2.3 Measurement frequencies
Measurements shall be made at the following frequencies:
Single channel equipment
– at the vision and sound carrier frequencies;
– at any other frequency where disturbance can occur.
Wideband equipment
– at the highest and lowest vision carrier frequencies in each used band and at a selection of
intervening frequencies chosen to give a realistic representation of the radiation pattern throughout the
operating frequency range.
– at any other frequency where disturbance can occur.
Frequency converters
Output ports and mains lead (if any):
– at the input and output vision and sound carrier frequencies;
– at all local oscillator fundamental frequencies;
– at any local oscillator harmonic, and any other frequencies where disturbance can occur.
Input ports:
– at all local oscillator fundamental frequencies;
– at selected local oscillator harmonics, or other frequencies (as above).
4.3.3 Methods of measurements
4.3.3.1 Measurem
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