BS EN 62153-4-7:2016+A1:2018
$189.07
Metallic communication cable test methods – Electromagnetic compatibility (EMC). Test method for measuring of transfer impedance ZT and screening attenuation as or coupling attenuation ac of connectors and assemblies up to and above 3 GHz. Triaxial tube in tube method
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 50 |
This triaxial method is suitable to determine the surface transfer impedance and/or screening attenuation and coupling attenuation of mated screened connectors (including the connection between cable and connector) and cable assemblies. This method could also be extended to determine the transfer impedance, coupling or screening attenuation of balanced or multipin connectors and multicore cable assemblies. For the measurement of transfer impedance and screening- or coupling attenuation, only one test set-up is needed.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword Anchor 39 Foreword to amendment A1 |
| 5 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 13 | 4 Physical background 5 Principle of the test methods 5.1 General |
| 15 | 5.2 Transfer impedance 5.3 Screening attenuation 5.4 Coupling attenuation |
| 16 | 6 Test procedure 6.1 General 6.2 Tube in tube procedure |
| 17 | 6.3 Test equipment |
| 18 | 6.4 Calibration procedure 6.5 Connection between extension tube and device under test 6.6 Dynamic range respectively noise floor |
| 19 | 6.7 Impedance matching 6.8 Influence of Adapters |
| 20 | 7 Sample preparation 7.1 Coaxial connector or device 7.2 Balanced or multiconductor device |
| 21 | 7.3 Cable assembly |
| 22 | 8 Measurement of transfer impedance 8.1 General 8.2 Principle block diagram of transfer impedance 8.3 Measuring procedure – Influence of connecting cables 8.4 Measuring |
| 23 | 8.5 Evaluation of test results 8.6 Test report 9 Screening attenuation 9.1 General |
| 24 | 9.2 Impedance matching 9.2.1 General 9.2.2 Evaluation of test results with matched conditions |
| 25 | 9.2.3 Measuring with mismatch 9.2.4 Evaluation of test results |
| 26 | 9.3 Test report 10 Coupling attenuation 10.1 Procedure |
| 27 | 10.2 Expression of results 10.3 Test report |
| 28 | 10.4 Balunless procedure |
| 29 | Annex A (normative) Determination of the impedance of the inner circuit |
| 30 | Annex B (informative) Example of a self-made impedance matching adapter |
| 32 | Annex C (informative) Measurements of the screening effectiveness of connectors and cable assemblies |
| 43 | Annex D (informative) Influence of contact resistances |
| 45 | Annex E (informative) Direct measurement of screening effectiveness of connectors |
| 48 | Bibliography |
