SIST EN 300 386:2001

SLOVENSKI STANDARD
01-julij-2001
Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) -
Oprema za telekomunikacijska omrežja - Zahteve za elektromagnetno združljivost
(EMC)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Telecommunication
network equipment; ElectroMagnetic Compatibility (EMC) requirements
Ta slovenski standard je istoveten z: EN 300 386 Version 1.2.1
ICS:
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI EN 300 386 V1.2.1 (2000-03)
Candidate Harmonized European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Telecommunication network equipment;
ElectroMagnetic Compatibility (EMC) requirements

2 ETSI EN 300 386 V1.2.1 (2000-03)
Reference
REN/ERM-EMC-111
Keywords
EMC, network, testing
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© European Telecommunications Standards Institute 2000.
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ETSI
3 ETSI EN 300 386 V1.2.1 (2000-03)
Contents
Intellectual Property Rights.6
Foreword .6
1 Scope.7
2 References.8
3 Definitions and abbreviations .11
3.1 Definitions.11
3.2 Abbreviations .12
4 Installation environment.13
5 Immunity: test methods.13
5.1 Electrostatic discharge.13
5.2 Electrical fast transients/burst.13
5.3 Surges.13
5.3.1 Outdoor signal line ports.13
5.3.2 Indoor signal line ports .14
5.3.3 AC power ports.14
5.4 Immunity to continuous conducted signals.14
5.4.1 Low frequency ( ≤ 150 kHz).14
5.4.1.1 AC power port.14
5.4.1.2 DC power port.14
5.4.1.3 Signal line port .14
5.4.2 Radio frequency (> 150 kHz) .14
5.4.2.1 AC power port.14
5.4.2.2 DC power port.14
5.4.2.3 Signal line port .15
5.5 Immunity to radiated electromagnetic fields .15
5.6 Immunity to power supply disturbances: AC and DC power ports.15
5.6.1 Test of immunity to low frequency disturbances: AC power ports .15
6 Emission: test methods.15
6.1 AC power port.15
6.2 DC power port.15
6.3 Telecommunication Port .16
6.4 Radiated emission.16
7 Test levels and limits.17
7.1 Equipment operating in telecommunication centres .17
7.1.1 Telecommunication centres, enclosure port.17
7.1.2 Telecommunication centres, ports for outdoor signal lines.18
7.1.3 Telecommunication centres, ports for indoor signal lines.20
7.1.4 Telecommunication centres, AC power ports .21
7.1.5 Telecommunication centres, DC power ports .22
7.2 Equipment operating in locations other than telecommunication centres.23
7.2.1 Other than telecommunication centres, enclosure port .23
7.2.2 Other than telecommunication centres, ports for outdoor signal lines .24
7.2.3 Other than telecommunication centres, ports for indoor signal lines .26
7.2.4 Other than telecommunication centres, AC power ports.27
7.2.5 Other than telecommunication centres, DC power ports.28
8 General test configuration.29
9 General operational conditions during testing .29
9.1 Equipment configuration .29
9.2 Exercising equipment .30
9.3 Laboratory environment .30
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4 ETSI EN 300 386 V1.2.1 (2000-03)
10 General immunity and resistibility conditions.30
10.1 General performance criteria.30
11 Switching equipment specific requirements .31
11.1 Test configuration.31
11.2 Operational conditions .32
11.2.1 Emission .32
11.2.2 Immunity.32
11.3 Specific immunity and resistibility performance criteria.32
11.3.1 Digital port performance criteria .32
11.3.1.1 Performance criteria A (continuous phenomena) .32
11.3.1.2 Performance criterion B (transient phenomena).33
11.3.1.3 Criteria C (interruptions).33
11.3.1.4 Criteria R (resistibility) .33
11.3.2 Analogue port performance criteria .33
11.3.2.1 Performance criteria A (continuous phenomena) .33
11.3.2.2 Performance criteria B (transient phenomena).33
11.3.2.3 Criteria C (interruptions).33
11.3.2.4 Criteria R (resistibility) .33
12 Transmission equipment specific requirements.34
12.1 Test configuration.34
12.2 Operational conditions .34
12.2.1 Emission .34
12.2.2 Immunity.34
12.3 Specific immunity and resistibility performance criteria.35
12.3.1 Digital signal ports.35
12.3.1.1 Performance criterion A (continuous phenomena).35
12.3.1.2 Performance criterion B (transient phenomena).35
12.3.1.3 Performance criterion C (interruptions) .35
12.3.1.4 Performance criterion R (resistibility).35
12.3.2 Analogue voice frequency signal ports .35
12.3.2.1 Performance criterion A (continuous phenomena).36
12.3.2.2 Performance criterion B (transient phenomena).36
12.3.2.3 Performance criterion R (resistibility).36
12.3.3 SDH and PDH interfaces .36
12.3.3.1 Tributary and aggregate interfaces .36
12.3.4 ISDN interfaces .36
12.3.4.1 Primary rate access ISDN interfaces .36
12.3.4.2 Network termination NT1 for ISDN "U" interfaces.36
12.3.4.3 Basic access ISDN interfaces.36
12.3.5 Analogue interfaces .36
12.3.5.1 Trunk interfaces and leased line interfaces.36
12.3.5.2 Subscriber interfaces .36
12.3.6 V.10, V.11, V.24, V.28, V.36, X.24 and similar V.- and X.- series interfaces.36
12.3.7 Ethernet and packet-data interfaces .37
12.3.7.1 Performance criterion A (continuous phenomena).37
12.3.7.2 Performance criterion B (transient phenomena).37
12.3.8 Service and maintenance interfaces .37
12.3.9 Synchronization interfaces.37
12.3.9.1 Performance criterion A (continuous phenomena).37
12.3.9.2 Performance criteria B (transient phenomena).37
12.3.10 Remote alarm interfaces.37
12.3.10.1 Performance criterion A (continuous phenomena).37
12.3.10.2 Performance criterion B (transient phenomena).37
12.3.10.3 Performance criteria R (resistibility).37
13 Power supply equipment specific conditions.38
13.1 Test configuration.38
13.2 Operational conditions .38
13.2.1 Emission .38
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5 ETSI EN 300 386 V1.2.1 (2000-03)
13.2.2 Immunity.39
13.3 Specific immunity and resistibility performance criteria.39
13.3.1 Alternating current secondary interface .39
13.3.1.1 Performance criteria A (continuous phenomena) .39
13.3.1.2 Performance criteria B (transient phenomena).39
13.3.1.3 Performance criterion R (resistibility).40
13.3.2 Direct current secondary interface .40
13.3.2.1 Performance criteria A (continuous phenomena) .40
13.3.2.2 Performance criteria B (transient phenomena).40
13.3.2.3 Performance criteria R (resistibility).40
13.3.3 Control/signal interface.41
13.3.4 Tertiary supply interface.41
14 Supervisory equipment specific conditions .41
14.1 Test configuration.41
14.2 Operational conditions .42
14.3 Specific immunity and resistibility performance criteria.42
14.3.1 Performance criteria A (continuous phenomena).42
14.3.2 Performance criteria B (transient phenomena).43
14.3.3 Performance criteria R (resistibility).43
Annex A (normative): Correlation between essential requirements and the provisions of the
present document.44
Annex B (normative): Surges: test method for ports of signal lines remaining within the
building.45
B.1 Test set-up for ports with ISDN interface.45
Annex C (informative): Evaluation of test results.48
History.50
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6 ETSI EN 300 386 V1.2.1 (2000-03)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server
(http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)
which are, or may be, or may become, essential to the present document.
Foreword
This Candidate Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical
Committee Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [46] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulations.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Council Directive on the approximation of the laws of the
Member States relating to electromagnetic compatibility ("the EMC Directive") (89/336/EEC [44] as amended).
Technical specifications relevant to the EMC Directive are given in annex A.
National transposition dates
Date of adoption of this EN: 25 February 2000
Date of latest announcement of this EN (doa): 31 May 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2000
Date of withdrawal of any conflicting National Standard (dow): 31 May 2003
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7 ETSI EN 300 386 V1.2.1 (2000-03)
1 Scope
The present document covers the EMC requirements for equipment intended to be used within a telecommunications
network (as defined in clause 3). Examples of such equipment are:
- Switching equipment. Such equipment includes:
- local telephone exchanges;
- remote switching concentrators;
- international switches;
- telex switches;
- network packet switches.
- General purpose equipment which is used as a part of a switching system may be covered by the scope of other
standards. For such equipment, if those other standards fully cover all the requirements of the present document,
no further requirements are necessary. Switching equipment can also contain transmission functions, and this has
to be recognized during testing.
- Non-radio transmission equipment and ancillary equipment. Such equipment includes:
- multiplexers;
- line equipment and repeaters, e.g. equipment for:
- Synchronous Digital Hierarchy (SDH);
- Plesiochronous Digital Hierarchy (PDH);
- Asynchronous Transfer Mode (ATM);
such as:
- Digital Cross Connect systems;
- network terminations;
- transmission equipment used in the access network like XDSL.
- Power supply equipment. Such equipment includes:
- central power plant;
- end of suite power supplies;
- uninterruptible power supplies;
- stabilized 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. Such equipment includes:
- network management equipment;
- operator access maintenance equipment;
- traffic measurement systems;
- line test units;
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8 ETSI EN 300 386 V1.2.1 (2000-03)
- functional test units.
The function of supervision may either be performed by independent equipment or form part of other
telecommunication equipment. If the function of supervision forms part of a telecommunication equipment, the
performance may be evaluated simultaneously with other functions (such as switching and transmission) during EMC
testing.
Supervisory equipment may also be used in conjunction with radio equipment.
The environmental classification used in the present document refers to TR 101 651 [45].
The requirements of the present document have been selected to ensure an adequate level of immunity for the apparatus
covered by the scope of the present document. The levels do not, however, cover extreme cases which may occur at any
location but with a low probability of occurrence. In special cases, situations may arise where the levels of disturbance
may exceed the immunity test levels specified in the present document. In these instances, special mitigation measures
mayhavetobeemployed.
Equipment for cabled distribution systems intended only for television and sound signals as defined in EN 50083-2 [4]
and optical amplifiers as defined in ITU-T Recommendations G.661 [24] and G.662 [25] are outside the scope of the
present document.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
[1] CISPR 16-1: "Specifications for radio interference measuring apparatus and measurement
methods".
[2] EN 45001: "General criteria for the operation of testing laboratories".
[3] EN 50082-1: "Electromagnetic compatibility - Generic immunity standard; Part 1: Residential,
commercial and light industry".
[4] EN 50083-2: "Cabled distribution systems for television and sound signals; Part 2:
Electromagnetic compatibility for equipment".
[5] EN 55022: "Limits and methods of measurement of radio disturbance characteristics of
information technology equipment".
[6] EN 61000-3-2: "Electromagnetic compatibility (EMC); Part 3: Limits; Section 2: Limits for
harmonic current emissions (equipment input current up to and including 16 A per phase)".
[7] EN 61000-3-3: "Electromagnetic compatibility (EMC); Part 3: Limits; Section 3: Limitation of
voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current up
to and including 16 A".
[8] EN 61000-4-2: "Electromagnetic compatibility (EMC); Part 4: Testing and measurement
techniques; Section 2: Electrostatic discharge immunity test".
[9] EN 61000-4-3: "Electromagnetic compatibility (EMC); Part 4: Testing and measurement
techniques; Section 3: Radiated, radio-frequency, electromagnetic field immunity test".
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9 ETSI EN 300 386 V1.2.1 (2000-03)
[10] EN 61000-4-4: "Electromagnetic compatibility (EMC); Part 4: Testing and measurement
techniques; Section 4: Electrical fast transient/burst immunity test".
[11] EN 61000-4-5: "Electromagnetic compatibility (EMC); Part 4: Testing and measurement
techniques; Section 5: Surge immunity test".
[12] EN 61000-4-6: "Electromagnetic compatibility (EMC); Part 4: Testing and measurement
techniques; Section 6: Immunity to conducted disturbances, induced by radio-frequency fields".
[13] EN 61000-4-11: "Electromagnetic compatibility (EMC); Part 4: Testing and measuring techniques;
Section 11: Voltage dips, short interruptions and voltage variations immunity tests".
[14] ETSI ETR 238: "ETSI/CENELEC standardization programme for the development of Harmonized
Standards related to Electro-Magnetic Compatibility (EMC) in the field of telecommunications".
[15] ETSI ETS 300 011: "Integrated Services Digital Network (ISDN); Primary rate user-network
interface; Layer 1 specification and test principles".
[16] ETSI ETS 300 012: "Integrated Services Digital Network (ISDN); Basic user-network interface;
Layer 1 specification and test principles".
[17] ESTI ETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct
current (dc) sources".
[18] ETSI ETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 2: Operated by direct current (dc)".
[19] ETSI ETS 300 166: "Transmission and Multiplexing (TM); Physical and electrical characteristics
of hierarchical digital interfaces for equipment using the 2 048 kbit/s - based plesiochronous or
synchronous digital hierarchies".
[20] ETSI ETS 300 232: "Transmission and Multiplexing (TM); Optical interfaces for equipments and
systems relating to the Synchronous Digital Hierarchy [ITU-T Recommendation G.957 (1993),
modified]".
[21] IEC 60050-161: "International Electrotechnical Vocabulary; Chapter 161: Electromagnetic
compatibility".
[22] IEC 60050-714: "International Electrotechnical Vocabulary - Chapter 714: Switching and
signalling in telecommunications".
[23] ISO/IEC 8802-3: "Information technology - Telecommunications and information exchange
between systems - Local and metropolitan area networks; Specific requirements; Part 3: Carrier
sense multiple access with collision detection (CSMA/CD) access method and physical layer
specifications".
[24] ITU-T Recommendation G.661: "Definition and test methods for the relevant generic parameters of
optical amplifiers devices and subsystems".
[25] ITU-T Recommendation G.662: "Generic characteristics of optical fibre amplifier devices and
sub-systems".
[26] ITU-T Recommendation G.712: "Transmission performance characteristics of pulse code
modulation channels".
[27] ITU-T Recommendation G.812: "Timing requirements of slave clocks suitable for use as node
clocks in synchonization networks".
[28] ITU-T Recommendation G.813: "Timing characteristics of SDH equipment slave clocks (SEC)".
[29] ITU-T Recommendation G.958: "Digital line systems based on the synchronous digital hierarchy
for use on optical fibre cables".
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10 ETSI EN 300 386 V1.2.1 (2000-03)
[30] ITU-T Recommendation G.961: "Digital transmission system on metallic local lines for ISDN
basic rate access".
[31] ITU-T Recommendation K.20: "Resistibility of telecommunication switching equipment to
overvoltages and overcurrents".
[32] ITU-T Recommendation K.21: "Resistibility of subscribers' terminals to overvoltages and
overcurrents".
[33] EN 300 127: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Radiated
emission testing of physically large telecommunication systems".
[34] ITU-T Recommendation O.41: "Psophometer for use on telephone-type circuits".
[35] ITU-T Recommendation O.150: "General requirements for instrumentation for performance
measurements on digital transmission equipment".
[36] ITU-T Recommendation Q.552: "Transmission characteristics at 2-wire analogue interfaces of
digital exchanges".
[37] ITU-T Recommendation V.10: "Electrical characteristics for unbalanced double-current
interchange circuits operating at data signalling rates nominally up to 100 kbit/s".
[38] ITU-T Recommendation V.11: "Electrical characteristics for balanced double-current interchange
circuits operating at data signalling rates up to 10 Mbit/s".
[39] ITU-T Recommendation V.24: "List of definitions for interchange circuits between data terminal
equipment (DTE) and data circuit-terminating equipment (DCE)".
[40] ITU-T Recommendation V.28: "Electrical characteristics for unbalanced double-current
interchange circuits".
[41] ITU-T Recommendation V.36: "Modems for synchronous data transmission using 60 - 108 kHz
group band circuits".
[42] ITU-T Recommendation X.24: "List of definitions for interchange circuits between Data Terminal
Equipment (DTE) and Data Circuit-terminating Equipment (DCE) on public data networks".
[43] ITU-T Recommendation X.25: "Interface between Data Terminal Equipment (DTE) and Data
Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to
public data networks by dedicated circuit".
[44] 89/336/EEC: "Council Directive of 3 May 1989 on the approximation of the laws of the member
states relating to electromagnetic compatibility".
[45] ETSI TR 101 651: "Electromagnetic compatibility and radio spectrum matters (ERM);
Classification of the electromagnetic environment conditions for equipment in telecommunication
networks".
[46] 98/34/EC: "Directive 98/34/EC of the European Parliament and of the Council of 22 June 1998
laying down a procedure for the provision of information in the field of technical standards and
regulations".
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11 ETSI EN 300 386 V1.2.1 (2000-03)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply. The definitions taken from the
IEC 60050-161 [21] have reference in parentheses:
AC secondary interface: output port of a AC power supply
AC secondary voltage: output of the AC power supply at the AC secondary interface
NOTE 1: The AC secondary voltage may be either:
- a stabilized AC supply derived from a DC primary supply (e.g. where the power supply is an inverter);
or
- derived from the AC primary supply (e.g. a stabilized power supply used where the quality of the
primary supply is not sufficient to feed telecommunication equipment.
burst (161-02-07): sequence of a limited number of distinct pulses or an oscillation of limited duration
connection: temporary association of transmission channels or telecommunication circuits, switching or other functional
units set up to provide for the transfer of information between two or more points in a telecommunication network
(IEC 60050-714 [22])
continuous disturbance (161-02-11): electromagnetic disturbance the effects of which on a particular device or
equipment cannot be resolved into a succession of distinct effects
DC secondary interface: output port of a DC power supply
DC secondary voltage: output of the DC power supply at the DC secondary interface. The DC secondary voltage may
be derived from the AC primary supply with or without a buffer battery
duration (of a voltage change) (161-08-03): interval of time for the voltage to increase or decrease from the initial
value to the final value
duration (of a pulse): interval of time between the instants at which the instantaneous value of a pulse reaches 50 % of
the pulse magnitude for the first and last time
enclosure port: physical boundary of the Equipment Under Test (EUT) through which electromagnetic fields may
emanate or on which they may impinge
environment, environmental conditions: electromagnetic conditions external to the equipment, to which it is subjected
at a certain time. The environmental conditions comprise a combination of single environmental parameters and their
severity's
environmental parameters: present one or more properties of the electromagnetic environment
immunity (to a disturbance) (161-01-20): ability of a device, equipment or system to perform without degradation in
the presence of an electromagnetic disturbance
impulsive disturbance (161-02-09): electromagnetic disturbance which, when incident on a particular device or
equipment, manifests itself as a succession of distinct pulses or transients
interface "A": terminals at which a power supply is connected to the telecommunications equipment
nominal voltage: nominal value of voltage that designates the type of supply
normal service: service mode where telecommunications equipment operates within its specification
performance criterion: limits of acceptable behaviour of the equipment during and after the application of the
electromagnetic phenomenon
NOTE 2: Performance criteria A apply for continuous phenomena; performance criteria B and C apply for transient
phenomena; and performance criteria R apply for resistibility phenomena.
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12 ETSI EN 300 386 V1.2.1 (2000-03)
port: particular interface of the EUT with the external electromagnetic environment
power supply: power source (within the scope of the present document) to which telecommunications equipment is
intended to be connected
primary supply: public mains or a locally generated AC or DC supply
pulse (161-02-02): abrupt variation of short duration of a physical quantity followed by a rapid return to the initial value
Radio Frequencies (RF): frequency range above 150 kHz
resistibility: ability of equipment having one or more telecommunication ports to withstand the effects of electrical,
magnetic and electromagnetic phenomena in accordance with a specified criterion
rise time (of a pulse) (161-02-05): interval of time between the instants at which the instantaneous value of a pulse first
reaches a specified lower value and then a specified upper value
NOTE 3: Unless otherwise specified, the lower and upper values are fixed at 10 % and 90 % of the pulse
magnitude.
secondary supply: supply to the telecommunications equipment (e.g. racks or system blocks), derived from the primary
supply
surge (voltage) (161-08-11): transient voltage wave propagating along a line or a circuit and characterized by a rapid
increase followed by a slower decrease of the voltage
system block: functional group of equipment depending for its operation and performance upon the secondary power
supply
telecommunication network: network operated under a licence granted by a national telecommunications authority
which provides telecommunications between network termination points (NTPs) (i.e. excluding terminal equipment
beyond the NTPs)
tertiary supply: supply to the telecommunications equipment derived from the secondary supply
transient (adjective or noun) (161-02-01): pertaining to or designating a phenomenon or a quantity which varies
between two consecutive steady states during a time interval which is short compared with the timescale of interest
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
AM Amplitude Modulation
AV Average
DC Direct Current
EMC ElectroMagnetic Compatibility
ESD Electrostatic Discharge
EUT Equipment Under Test
N/A Not Applicable
NTP Network Termination Point
PDH Plesiochronous Digital Hierarchy
PRBS Pseudo Random Bit Sequence
QP Quasi-Peak
RF Radio Frequency
rms root-mean-square
SDH Synchronous Digital Hierarchy
T /T Rise time (10 % to 90 %) and hold time (50 % to 50 %) of transient signal
r h
(see EN 61000-4-4 [10])
U Voltage measured with a psophometer conforming to ITU-T Recommendation O.41 [34]
pso
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13 ETSI EN 300 386 V1.2.1 (2000-03)
4 Installation environment
The installation environments for the equipment covered by the present document are defined in TR 101 651 [45]. The
environments defined are either:
- the telecommunication centre (Major and Minor);
- locations other than telecommunication centre e.g. within offices, customers' premises, outdoor locations, etc.
If no restrictions are specified in the product documentation for the installation environment, the equipment shall comply
with the requirements of all environments, implying that the more severe test level shall be used when the test is
performed. Equipment which meets the (more severe) requirements for "other than telecommunications centres" may be
operated in either location.
5 Immunity: test methods
Where reference is made in the present document to specific "test levels" to be used for the tests, it is implicitly required
that the EUT shall also fulfil the compliance criteria when tested at "test levels" lower than those specified. This
requirement does not apply, however, to tests for immunity to continuous phenomena.
Conducted immunity tests shall be applied to one port at a time.
One signal port of each type found on the equipment shall be tested. If in normal installation practice multi-pair cables
(e.g. 64 × balanced pairs) and composite cables (e.g. a combination of fibre and copper) are used, they are to be tested
as one single cable. Cables bundled for aesthetic or routing purposes are to be tested individually.
5.1 Electrostatic discharge
The immunity test method and laboratory conditions are described in EN 61000-4-2 [8].
ESD shall be applied only to such points that are accessible to personnel during normal usage. The application of
discharges to any point of the equipment other than the electrostatic protection point which is accessible only for
maintenance purposes is not allowed unless specified by the manufacturer.
5.2 Electrical fast transients/burst
The immunity test method and laboratory conditions are described in EN 61000-4-4 [10].
5.3 Surges
5.3.1 Outdoor signal line ports
The immunity test method to be used for signal line ports is described in the EN 61000-4-5 [11].
Where normal functioning cannot be achieved because of the impact of the CDN on the EUT, no immunity test shall be
required.
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14 ETSI EN 300 386 V1.2.1 (2000-03)
For resistibility tests according to the ITU-T Recommendations K.20 [31] and K.21 [32], the test generator shall be
connected via the coupling network to one signal port. Other ports shall be configured for normal use. After the surge
has been applied the generator shall be disconnected from the port and
...