BS EN 61935-2:2010
$142.49
Specification for the testing of balanced and coaxial information technology cabling – Cords as specified in ISO/IEC 11801 and related standards
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 32 |
IEC 61935-2:2010 provides methods to ensure compatibility of balanced cords to be used in cabling according to ISO/IEC 11801 and provides test methods and associated requirements to demonstrate the performance and reliability of these balanced cords during their operational lifetime. This International Standard may also be used for providing test methods for assessing the behaviour of other balanced cords. This third edition cancels and replaces the second edition published in 2005. It differs from the second edition in that it covers category 6A to category 7A cords as defined in ISO/IEC 11801.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions 4 General requirements and test configuration 4.1 Cable and connector design 4.2 Balanced cord, cable and connector tests 4.3 Test configuration and equipment |
| 13 | 4.4 Balanced cord tests requirements Figures Figure 1 – Test configuration for balanced cord for NEXT and return loss measurements |
| 14 | 5 Acceptance tests 5.1 Visual inspection |
| 15 | 5.2 Wire map Figure 2 – Correct pairing Figure 3 – Incorrect pairing |
| 16 | 5.3 Propagation delay 5.4 Delay skew 5.5 Insertion loss 5.6 Return loss |
| 17 | 5.7 Near end crosstalk (NEXT) Tables Table 1 – Return loss requirements Table 2 – Balanced cord return loss requirements at key frequencies |
| 19 | Table 3 – Category 5 balanced cord NEXT requirements at key frequencies Table 4 – Category 6 balanced cord NEXT requirements at key frequencies Table 5 – Category 6A balanced cord NEXT requirements at key frequencies Table 6 – Category 7 balanced cord NEXT requirements at key frequencies Table 7 – Category 7A balanced cord NEXT requirements at key frequencies |
| 20 | 5.8 Assumptions used in the development of cord requirements 6 Balanced cord test procedure – Network analyser test configuration Table 8 – Assumptions for cabling components used in the development of NEXT and return loss requirements |
| 21 | 7 Periodic tests 7.1 General 7.2 Tensile strength Figure 4 – Initial marking of the cable sheath Figure 5 – Final visual inspection |
| 22 | 7.3 Flexure Figure 6 – Fixture for balanced cord flexure test |
| 23 | 7.4 Bending 7.5 Twisting Figure 7 – Bending test: assembly in U shape |
| 24 | 7.6 Crushing Figure 8 – Twisting test: assembly in U shape |
| 25 | 7.7 Dust test Figure 9 – Fixture for cable crushing test |
| 27 | 7.8 Coupling attenuation Figure 10 – Measuring device Table 9 – Coupling attenuation limits |
| 28 | 7.9 Climatic sequence 8 Test head requirements 8.1 General 8.2 Minimum requirements for all test head designs |
| 29 | 8.3 Additional FEXT requirements for balanced connector compatible test heads 8.4 Additional return loss requirements for balanced connector compatible test heads 8.5 NEXT loss centering requirements for balanced connector compatible test heads |
| 30 | Figure 11 – Centering of NEXT properties of the balanced connector test head |
