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SN EN 61935-1 : 2005
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The latest, up-to-date edition.
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TESTING OF BALANCED COMMUNICATION CABLING IN ACCORDANCE WITH STANDARDS SERIES EN 50173 - PART 1: INSTALLED CABLING
12-01-2013
FOREWORD
INTRODUCTION
3 Definitions
4 Reference measurement procedures for electrical
properties
4.1 Introduction
4.2 Test equipment considerations
4.2.4 Test configurations
4.2.5 Coaxial cables and test leads for network analyzers
4.2.6 Balun requirements
4.2.7 Network analyzer measurement precautions
4.2.8 Data reporting and accuracy
4.3.5 Test report
4.3.6 Uncertainty
4.4 Attenuation
4.4.3 Test equipment and set-up
4.4.4 Procedure
4.4.5 Test report
4.4.6 Temperature correction
4.4.7 Uncertainty
4.5 Propagation delay and delay skew
4.5.3 Test equipment and set-up
4.5.4 Procedure
4.5.5 Test report
4.6 Near-end cross-talk (NEXT) pair-to-pair and
power sum
4.6.1 Object
4.6.2 Test method
4.6.3 Test equipment and set-up
4.6.4 Procedure
4.6.5 Test report
4.6.6 Uncertainty of NEXT measurements
4.7 Far-end cross-talk (FEXT) pair-to-pair and power sum
4.7.1 Object
4.7.2 Test method
4.7.3 Test equipment and set-up
4.7.4 Procedure
4.7.5 Test report
4.7.6 Uncertainty of FEXT measurements
4.8 Equal level far-end cross-talk (ELFEXT)
4.8.1 Object
4.8.2 Calculation
4.8.3 Test report
4.8.4 Uncertainty of ELFEXT measurements
4.9 Equal level far-end cross-talk (ELFEXT)
4.9.1 Object
4.9.2 Test method
4.9.3 Test equipment and set-up
4.9.4 Procedure
4.9.5 Test report
4.9.6 Uncertainty of return loss measurements
4.10 Unbalance attenuation
4.11 Coupling attenuation
5 Field test measurement requirements for electrical
properties
5.1 Introduction
5.2 Cabling configurations tested
5.3 Field test parameters
5.3.1 General
5.3.2 Inspection of workmanship and connectivity testing
5.3.3 Propagation delay and delay skew
5.3.4 Length
5.3.5 Attenuation
5.3.6 Pair-to-pair NEXT loss, power sum NEXT loss
5.3.7 Pair-to-pair ELFEXT loss, power sum ELFEXT loss
5.3.8 Return loss
5.3.9 DC loop resistance
5.4 Data reporting and accuracy
5.4.1 General
5.4.2 Detailed results
5.4.3 Summary results
5.5 Field measurement procedure
5.5.1 General
5.5.2 Consistency checks for field testers
5.5.3 Repeatability of tests on a reference link
5.5.4 Repeatability of tests by testing the same link
in opposite directions
5.5.5 Administration
5.5.6 Test equipment connectors and cords
5.5.7 User cords
6 Field tester measurement accuracy requirements
6.1 General
6.2 Measurement accuracy specification for level
IIE field testers
6.2.1 Field test equipment requirements for propagation
delay
6.2.2 Field test equipment requirements for delay skew
6.2.3 Field test equipment requirements for length
6.2.4 Field test equipment requirements for loop d.c.
resistance
6.3 Procedures for determining field tester
parameters
6.3.1 General
6.3.2 Output signal balance (OSB)
6.3.3 Common mode rejection (CMR)
6.3.4 Residual NEXT loss
6.3.5 Dynamic accuracy
6.3.6 Source/load return loss
6.3.8 Residual FEXT loss
6.3.9 Directivity
6.3.10 Tracking
6.3.11 Source match
6.3.12 Return loss of remote termination
6.3.13 Constant error term of the propagation delay
measurement function
6.3.14 Error constant proportional to propagation delay
of the propagation delay measurement function
6.3.15 Constant error term of the delay skew measurement
function
6.3.16 Constant error term of the length measurement
6.3.17 Error constant proportional to length of the
length measurement function
6.3.18 Constant error term of the d.c. resistance
measurement function
6.3.19 Error constant proportional to d.c. resistance
of the d.c. resistance measurement function
6.3.20 Procedure to verify test cable performance
6.3.21 Procedure to verify test adapter performance
6.4 Measurement error models
6.4.1 General
function of level IIE field test equipment
6.4.3 Error model for the pair-to-pair NEXT loss
measurement function of level IIE field test
equipment
6.4.4 Error model for the power sum NEXT loss measurement
function of level IIE field test equipment
6.4.5 Error model for the pair-to-pair ELFEXT loss
measurement function of level IIE field test equipment
6.4.6 Error model for the power sum ELFEXT loss
measurement function of level IIE field test
equipment
6.4.7 Error model for the return loss measurement
function of level IIE field test equipment
6.4.8 Error model for the propagation delay measurement
function of level IIE field test equipment
6.4.9 Error model for the delay skew measurement
function of level IIE field test equipment
6.4.10 Error model for the length measurement
function of level IIE field test equipment
6.4.11 Error model for the d.c. loop resistance
measurement function of level IIE field test
equipment
6.5 Network analyser measurement comparison
6.5.1 General
6.5.2 Adapters
6.5.3 Comparison methods
Figures
Tables
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