SIST EN 50289-1-16:2007

SLOVENSKI STANDARD
01-november-2007
Komunikacijski kabli – Specifikacije za preskušalne metode – 1-16. del:
Elektromagnetne lastnosti – Sklopno slabljenje kabelskega pribora (v poljskih
pogojih)
Communication cables - Specifications for test methods -- Part 1-16: Electromagnetic
performance - Coupling attenuation of cable assemblies (Field conditions)
Kommunikationskabel - Spezifikationen für Prüfverfahren -- Teil 1-16:
Elektromagnetisches Verhalten - Kopplungsdämpfung für konfektionierte Kabel unter
Feldbedingungen
Câbles de communication - Spécifications des méthodes d'essai -- Partie 1-16:
Performance électromagnétique - Affaiblissement de couplage des câbles équipés
(Conditions de terrain)
Ta slovenski standard je istoveten z: EN 50289-1-16:2007
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50289-1-16
NORME EUROPÉENNE
April 2007
EUROPÄISCHE NORM
ICS 33.120.10
English version
Communication cables -
Specifications for test methods -
Part 1-16: Electromagnetic performance -
Coupling attenuation of cable assemblies
(Field conditions)
Câbles de communication -  Kommunikationskabel -
Spécifications des méthodes d'essai - Spezifikationen für Prüfverfahren -
Partie 1-16: Performance Teil 1-16: Elektromagnetisches Verhalten -
électromagnétique - Kopplungsdämpfung für konfektionierte
Affaiblissement de couplage des câbles Kabel unter Feldbedingungen
équipés (Conditions de terrain)

This European Standard was approved by CENELEC on 2006-11-01. 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, Bulgaria, 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

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50289-1-16:2007 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 46X, Communication
cables.
The text of the draft was submitted to the formal vote and was approved by CENELEC as
EN 50289-1-16 on 2006-11-01.
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) 2007-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-11-01
__________
– 3 – EN 50289-1-16:2007
Contents
1 Scope.4
2 Normative references.4
3 Definitions.4
4 Test method.4
4.1 Equipment.4
4.1.1 General .4
4.1.2 Balun requirements.5
4.1.3 Extension cable requirements.6
4.2 Test sample .7
4.2.1 General .7
4.2.2 Tested length .7
4.2.3 Preparation of test sample .7
4.3 Calibration procedure.8
4.4 Test set-up.9
4.4.1 General .9
4.4.2 Test set-up verification .9
4.5 Measuring procedure . 10
4.5.1 Example of link measurement. 10
5 Expression of test results. 11
6 Test report . 11
6.1 General. 11
6.2 Evaluation of test results (informative) . 12
Bibliography . 15
Figures
Figure 1 – Measurement of surface wave in one end of a link or channel.5
Figure 2 – Termination of link or channel or applied extension cable .8
Figure 3 – Example of a three-connector link configuration as defined in EN 50173-1. 10
Figure 4 – Wall outlet end measurement . 11
Figure 5 – Typical measurement of an unscreened channel – Coupling attenuation,
A is 43 dB. 12
Figure 6 – Typical measurement of a screened balanced channel – Coupling attenuation,
A is 57 dB. 13
Figure 7 – Double wall outlet port right (without connected screen) – Coupling
attenuation, A is 44,8 dB. 13
Figure 8 – Double wall outlet port left (with connected screen) – Coupling attenuation,
A is 61,5 dB . 14
Table
Table 1 – Balun performance characteristics .6

1 Scope
This part of EN 50289-1 details the method of in field test to determine the coupling attenuation for
installed links and channels used in analogue and digital communication systems. It is to be read in
conjunction with EN 50289-1-6 and EN 50289-1-15.
This method is used to determine the attenuation of disturbing power to signal power in a cabling
system, and vice versa. This determines the influence from cabling on the EMC performance of a
system.
NOTE 1  The coupling attenuation of installed links and channels is dependant upon the performance of the cabling
components (balance and screening if applicable), workmanship (especially termination of screens) and earthing and
grounding. This procedure determines the overall effect of these parameters.
NOTE 2  This method cannot be used for verification of compliance with emission and immunity EMC standards for the
complete system including active components
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 50290-1-2 Communication cables – Part 1-2: Definitions
EN 50289-1-6 Communication cables – Specifications for test methods – Part 1-6: Electrical
test methods – Electromagnetic performance
EN 50289-1-15 Communication cables – Specifications for test methods – Part 1-15:
Electromagnetic performance – Coupling attenuation of links and channels
(Laboratory conditions)
3 Definitions
For the purposes of this document, the definitions of EN 50290-1-2 and EN 50289-1-6 apply.
4 Test method
4.1 Equipment
4.1.1 General
1)
The field test equipment shall be able to measure coupling attenuation according to the principle
defined in EN 50289-1-6 (see also Subclause 5.3).
See EN 50289-1-6, Subclause 9.2.1.1, and Figure 1 below.

1)
Instead of signal generator and measuring receiver or network analyser a spectrum analyser with tracking
generator can be used, which is available as a field test equipment.

– 5 – EN 50289-1-16:2007
Key
1 signal generator, output impedance Z
2 balun (if applicable).
3 screen of signal generator and balun if needed for high dynamic range
4 reflector plate, minimum size 0,2 m x 0,2 m
5 absorbing clamp
2)
6 absorber (ferrite tube) of the clamp, insertion loss > 10 dB
7 current transformer of the clamp
8 extension cable for connection to link under test. Length 2 m
9 measuring receiver cable (use the same in measurement and calibration)
10 measuring receiver
11 connecting hardware in measured end of link or channel
12 link or channel under test
13 load termination of far end of link or channel under test
Figure 1 – Measurement of surface wave in one end of a link or channel
4.1.2 Balun requirements
For measurement of symmetrical links or channels, a means for generating symmetrical signals shall be
provided. If the generator is unbalanced, this may be performed by the use of a balun or 180° power
splitter.
The minimum requirements for this device are specified in Table 1.
The attenuation of the balun shall be kept as low as possible because it will limit the dynamic range of
the coupling attenuation or screening attenuation measurements.

2)
There is no requirement for an absorber in the far end.

Table 1 – Balun performance characteristics
Parameter Value
a
Impedance, primary 50 Ω (unbalanced)
b
Impedance, secondary 100 Ω or 150 Ω (balanced)
d
Operational attenuation (including matching ≤ 10 dB
pads if used)
Return loss, bi-directional ≥ 6 dB
Power rating To accommodate the power of the generator and
amplifier (if applicable)
c
Output signal balance ≥ 50 dB from 30 MHz to 100 MHz
≥ 30 dB from 100 MHz to the highest measured
frequency.
a
Primary impedance may differ if necessary to accommodate analyzer outputs other than 50 Ω.
b
Balanced outputs of the test baluns shall be matched to the nominal impedance of the symmetrical patch
cord / cable pair. 100 Ω shall be used for termination of 120 Ω cabling.
c
Measured per ITU-T Recommendations G.117 and O.9.
d
The operational attenuation of a balun shall be mathematically deduced from 3 operational attenuation
measurements with 3 baluns back-to-back.

4.1.3 Extension cable requirements
An extension cable is only required if the channel or link under test does not include a cable, which can
be connected to the test set-up.
The length of the extension cable shall be 2 m ± 0,1 m.
Unscreened extension cables shall be used for testing unscreened, balanced link or channels.
Screened, balanced extension cables shall be used for testing screened, balanced links or channels.
Coaxial extension cables shall be used for testing coaxial links or channels.
The electrical transmission performance including electromagnetic screening and unbalance attenuation
of the extension cables shall be better or equal to the performance of the link or channel under test.
The choice of the extension cable should assure the minimum possible insertion loss and reflection loss
of the set-up.
The extension cables shall have the same nominal characteristic impedance as the link or channel
under test. Likewise the same type of insulation (i.e. foamed or solid) shall be used. The insertion loss
of an extension cable including mating connector, if applicable, shall be less than 2,0 dB up to the
highest measurement frequency.
The extension cables, any mating connectors and the connection between extension cables and the
mating connectors, if applicable, should have a balance or screening or balance and screening as good
as possible, because its quality may have an impact on the test results. To further enhance the
measurement sensitivity the connection between the mating connector and the extension cable may be
improved since it does not form part of the device under test. It is not allowed to improve any contact
between the connecting hardware of the link or channel under test and the mating connector of the
extension cable, if applicable. The measurement sensitivity shall be 6 dB better than the specified
requirement limit for the link or channel under test. See 5.4.2.1 for determination of the measurement
sensitivity.
– 7 – EN 50289-1-16:2007
In case of doubt regarding the interoperability between any mating connector and the connecting
hardware of the link or ch
...