Slide 1

Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 1 Background, content and future of the EMC measurement standard EN 50289-1-6 Correlation between radiated immunity and coupling attenuation Michiel Pelt Slide 2 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 2 New standards on cables EN50288-X-Y: Multi-element cables use in analogue and digital communication and control Sectional specifications EN 50289-X-Y: Communication cables - Specification for test methods Electrical, mechanical, environmental test methods EN 50290-X-Y: Communication cables Common design rules, quality assessment Slide 3 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 3 Need for new test method No test methods for: combined effect of balance and screening comparing UTP, ScTP, FTP, STP,.... connecting hardware, cable assemblies and channels balance at higher frequencies Slide 4 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 4 Members of CLC TC 46X WG3 Test Laboratories GHMT in Germany DELTA and 3P in Denmark Cable Manufacturers BEDEA, BICC, COMMSCOPE, AVAYA, NEXANS NEK/CDT etc. User and others ACS, IBM, BT, Helsinki University,Telesafe etc. Slide 5 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 5 Work done by CLC TC 46X WG3 EN50289-1-6 t Existing EMC test methods for CABLES t Coupling attenuation => NEW !!! Pr EN 50289-1-13 (ongoing) t Coupling attenuation on patch cords / cable assemblies Pr EN 50289-1-14 (ongoing) Coupling attenuation on connecting hardware Pr EN 50289-1- 9 (ongoing) t Attenuation unbalance Slide 6 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 6 Outline Physical basics of cable screening Measurement Procedures of EN 50289-1-6 Transferimpedance triaxial method, Wire injection method Screening attenuation triaxial method (clamp method = coupling attenuation) Coupling attenuation Clamp methods (triaxial method exists but not in standard) Slide 7 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 7 Equivalent circuit for general coupling transfer function Z 2, r2, v 12, 2 Z 1, r1, v 1, 1 Slide 8 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 8 Transfer impedance Z T Slide 9 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 9 Capacitive coupling impedance Z F Slide 10 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 10 Effective transfert impedance Z F Slide 11 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 11 Coupling transfer function For matched lines: Slide 12 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 12 The summing function ( l f) cn ( l f) cf far near S ( l f) 20 dB/decade Slide 13 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 13 Calculated coupling transfer function frequency dB L=1 m r1 =2,3 r2 =1,0 Z F =0 Slide 14 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 14 Screening attenuation a s Slide 15 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 15 Relation between Z TE and a S Normalised conditions: Z S =150 v/v =10%or r1 / r2n =1,21 Slide 16 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 16 What is coupling attenuation a C The coupling between symmetrical (balanced, differential mode) cables and the surrounding is dependent on the balance to ground of the pair and the efficiency of the screen. Slide 17 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 17 Transfer impedance, triaxial test set-up Frequency range: DC to 100 MHz Slide 18 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 18 Transfer impedance, injection wire set-up, (far end) 1 Networkanalyzer5 cable under test 2 attenuator 20 dB6 adhesive tape 3 power splitter7 termination load 4 matching pads8 injection wire Frequency range: DC to 3 GHz Slide 19 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 19 Screening attenuation, triaxial set-up Frequency range: 30 MHz to 4 GHz Slide 20 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 20 Coupling attenuation, absorbing clamp set-up, (near end) Frequency range: 30 MHz to 1 GHz Slide 21 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 21 Summary wire injection method transfer impedance clamp methods screening attenuation, coupling attenuation triaxial method transfer impedance, screening attenuation, coupling attenuation Slide 22 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 22 Screening attenuation, absorbing clamp set-up, (near end) Frequency range: 30 MHz to 1 GHz (0,5 to 2,5 GHz) MDS 21 MDS 22 Slide 23 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 23 Screening attenuation, injection clamp set-up, (near end) Frequency range: 100 KHz to 1 GHz EM 101 Slide 24 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 24 Coupling attenuation, injection clamp set-up, (near end) Frequency range: 100 KHz to 1 GHz Slide 25 Michiel Pelt, Nexans Cabling Solutions, Alsembergsestw 2b3, B-1501 Buizingen, Belgium Background, content and future of EN 50289-1-6 1- 25 Coupling attenuation, triaxial set-up Frequency range: 30 MHz to 3 GHz