IEC 60728-2:2018

IEC 60728-2 ®
Edition 3.0 2018-01
INTERNATIONAL
STANDARD
Cable networks for television signals, sound signals and interactive services –
Part 2: Electromagnetic compatibility for equipment
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IEC 60728-2 ®
Edition 3.0 2018-01
INTERNATIONAL
STANDARD
Cable networks for television signals, sound signals and interactive services –

Part 2: Electromagnetic compatibility for equipment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.99 ISBN 978-2-8322-5148-5

– 2 – IEC 60728-2:2018 © IEC 2018
CONTENTS
CONTENTS . 2
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 10
3 Terms, definitions, symbols and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Symbols . 16
3.3 Abbreviated terms . 17
4 Methods of measurements . 17
4.1 General operating conditions . 17
4.2 Disturbance voltages from equipment . 18
4.2.1 Disturbance voltages from equipment in the frequency range from
150 kHz to 30 MHz . 18
4.2.2 Disturbance voltages from equipment at the AC mains frequency and its
harmonics . 18
4.2.3 Measurement of input terminal disturbance voltage . 19
4.3 Radiation from active equipment. 19
4.3.1 General . 19
4.3.2 General measurement requirements . 19
4.3.3 Methods of measurements . 20
4.4 Immunity of active equipment . 29
4.4.1 General . 29
4.4.2 Performance criterion . 29
4.4.3 Measurement of the external immunity to ambient fields . 30
4.4.4 Internal immunity (immunity to unwanted signals) . 36
4.5 Screening effectiveness of passive equipment . 42
4.5.1 General . 42
4.5.2 General measurement requirements . 42
4.5.3 Methods of measurements . 42
4.6 Electrostatic discharge immunity test for active equipment . 44
4.6.1 General . 44
4.6.2 Performance criterion B (according to IEC 61000-6-1:2016) . 44
4.7 Electrical fast transient/burst immunity test for AC power ports . 44
4.8 Methods of measurement for telecom signal ports of multimedia network
equipment . 44
4.9 Measurement of indoor receiving antennas for broadcast signals . 44
4.9.1 Indoor antennas with additional RF network input port . 44
4.9.2 Indoor antennas without additional RF network input port . 45
5 Performance requirements . 45
5.1 General . 45
5.1.1 Emission performance requirements . 45
5.1.2 Immunity performance requirements . 45
5.2 Disturbance voltages from equipment . 45
5.2.1 Limits of mains terminal disturbance voltage . 45
5.2.2 Limits of input terminal disturbance voltages . 45
5.3 Radiation . 46

5.3.1 Radiation from active equipment . 46
5.3.2 Local oscillator power at the outdoor unit input . 46
5.4 Immunity of active equipment . 47
5.4.1 External immunity to electromagnetic fields . 47
5.4.2 Internal immunity . 47
5.4.3 Immunity of outdoor units to image frequency signals . 51
5.5 Screening effectiveness of passive equipment . 52
5.6 Electrostatic discharge immunity test for active equipment . 52
5.7 Electrical fast transient/burst immunity test for AC power ports . 52
5.8 Performance requirements for telecom signal ports of multimedia network
equipment . 53
5.9 Applicability of EMC performance requirements and methods of measurement
to different types of equipment . 53
Bibliography . 56

Figure 1 – Measurement set-up for radiation measurements in the frequency range
5 MHz to 30 MHz using the "coupling unit" method . 21
Figure 2 – Absorbing clamp method (30 MHz to 1 000 MHz) . 23
Figure 3 – Example of general measurement set-up . 24
Figure 4 – Example of measurement set-up for measurements on the input port of
active equipment . 25
Figure 5 – Measurement set-up for the "substitution" radiation method – First
measurement step . 27
Figure 6 – Measurement set-up for the "substitution" radiation method – Second
measurement step . 28
Figure 7 – Frequency allocation for out-of-band immunity measurement of active

equipment in the frequency range ≤ 1 000 MHz . 31
Figure 8 – Frequency allocation for out-of-band immunity measurement of active
equipment in the frequency range ≥ 950 MHz . 31
Figure 9 – Frequency allocation for in-band immunity measurement of active equipment
in the frequency range ≤ 1 000 MHz . 34
Figure 10 – Frequency allocation for in-band immunity measurement of active
equipment in the frequency range ≥ 950 MHz . 35
Figure 11 – Measurement set-up for internal immunity test . 37
Figure 12 – Levels of wanted and unwanted signals for the internal immunity of FSS
receiving outdoor units . 40
Figure 13 – Levels of wanted and unwanted signals for the internal immunity of BSS
receiving outdoor units . 41
Figure 14 – Levels of unwanted signals for the internal immunity of active equipment in
Band I (47 MHz to 68 MHz) . 48
Figure 15 – Levels of unwanted signals for the internal immunity of active equipment in
Band II (87,5 MHz to 108 MHz) . 49
Figure 16 – Levels of unwanted signals for the internal immunity of active equipment in
Band III (174 MHz to 230 MHz) . 50
Figure 17 – Levels of unwanted signals for the internal immunity of active equipment in

Band IV/V (470 MHz to 862 MHz) . 51

Table 1 – Port structure of different network equipment . 9
Table 2 – Limits of mains terminal disturbance voltage . 45

– 4 – IEC 60728-2:2018 © IEC 2018
Table 3 – Limits of input terminal disturbance voltages for equipment directly connected
to receiving antennas . 46
Table 4 – Limits of input terminal disturbance voltages for equipment directly connected
to satellite outdoor units . 46
Table 5 – Limits of radiated disturbance power . 46
Table 6 – Limit of local oscillator terminal power .
...