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Transcript
ISN ST08 IMPEDANCE STABILIZATION NETWORK FOR SCREENED BALANCED PAIRS Impedance stabilization networks (ISN, or with CISPR 16-1-2 called AAN: asymmetric artificial network or AN: artificial networks for coaxial and other screened cables) are defined for measuring of conducted common mode disturbances at information technology equipment (ITE) as required in CISPR 22. The ISN is placed between the equipment under test (EUT) and auxiliary equipment (AE) or load which are necessary for the operation of the EUT. The ISN establishes the common-mode termination impedance for the EUT’s telecommunications port during measurement. All internal parts fulfill the requirements of cat.6 or better and provide optimal transfer performance. The used internal cable has a symmetrical impedance of 100 Ω. The pin- arrangement of the RJ45 sockets meets the requirements of EIA / TIA 568B. For use with screened RJ45 ISN ST08 meets the requirements of CISPR 22, EN 55022, CISPR 32, EN 55032, CISPR 16-1-2 and EN 55016-1-2. Unlike the ISN T types for unscreened balanced lines the ISN ST08 needs no additional adapters for LCL setting. connections Up to 8 lines / 4 pairs Meets the requirements of Technical specifications CISPR 22, CISPR 32, CISPR 16-1-2 Design given in figure D.11 of CISPR 22 and G.11 of CISPR 32 Can be used as CDN for IEC 61000-4-6 immunity tests Network applications Screened balanced lines STP, FTP, SFTP Cat.3, cat.5, cat.5e, cat.6, cat.7 Ethernet with10 BaseT, 100 BaseT, 1000 BaseT, 10 GBaseT RJ45 Frequency range: 150 kHz to 230 MHz Line parameters: 4 pairs, balanced, shielded, 100 Ω impedance Power rating (EUT and AE port) AC max. voltage: 100 V DC max. voltage: 150 V Current max : 1.2 A (line) Test voltage: 200 VDC, 2 sec Common mode impedance (EUT port) 150 kHz to 30 MHz: 150 Ω ±20 Ω 30 MHz to 230 MHz: 150 Ω +60 Ω / -45 Ω Phase angle (EUT port) 150 kHz to 30 MHz: 0° ±20° Coupling path (In / Out port / EUT) Connection: BNC 50 Ω RF voltage: <20 V Voltage division factor (RF input to EUT port) 150 kHz to 30 MHz: 9.5 dB ±1 dB 30 MHz to 230 MHz: 9.5 dB +4 dB / -2 dB Transmission bandwidth (wanted signal) EUT / AE B3 dB: * > 250 MHz sin. Decoupling of common mode disturbances (EUT / AE) 150 kHz to 1.5 MHz: ≥60 dB 1.5 MHz to 30 MHz: ≥60 dB 230 MHz: ≥40 dB *) all balanced parameters are in relation to a symmetrical load of 100 Ω ISN ST08 IMPEDANCE STABILIZATION NETWORK FOR SCREENED BALANCED PAIRS Test setup example for disturbance voltage measurements on screened balanced pairs CISPR 16-1-1 RECEIVER CH 2 MEAS FOR SCL ON/OFF STO RCL DIA DIS TRA Help FRQ LVL StSize Step StSize StSize Step 2 Step STO MOD RCL Run Stop Back Local RF CH 1 2nd MOD Hold 1 3 LVL MOD 7 8 9 MHz dBµV STO RCL MOD 4 5 6 kHz dBm FRQ LVL MOD 1 2 3 Hz V STO RCL MOD 0 . FRQ Tuning Enter RF IN 50 Ω USB USB Power Equipment under test To auxiliary equipment ISN S AE Port EUT EUT Port Reference ground plane Insulating Example of the level setting setup (system calibration for immunity testing according IEC / EN 61000-4-6) Test generator e.g. Teseq NSG 4070 with built-in RF synthesizer, brodband power amplifier and power meter 6 dB Attenuator NSG 4070 RF out No load or adapter required ISN ST08 150 Ω / 50 Ω adapter EUT Port SAR T800 adapter 100 Ω AE Port CAL U100B Ground plane 7 8 9 MHz dBµV FRQ LVL 4 5 6 kHz dBm STO RCL 3 Hz V StSize Step Power meter Amp in < +10 dBm Amp out ch.3 < +20 dBm ch.2 < +20 dBm 1 2 0 . ON/OFF Help StSize StSize Step 2 Step 1 Enter Local RF MOD 2nd 3 Tuning Hold ch.1 < +27 dBm Back Run Stop USB Power Power meter with input impedance 50 Ω The ISN ST08 is appropriate for immunity tests of IEC / EN 61000-4-6. Optional available are the parts for the level setting setup CAL U100B (150 Ω / 50 Ω adapter) and SAR T800 (common mode adapter for RJ45). ISN ST08 IMPEDANCE STABILIZATION NETWORK FOR SCREENED BALANCED PAIRS Example of the EUT setup for immunity testing according IEC / EN 61000-4-6 Test generator e.g. Teseq NSG 4070 with built-in RF synthesizer, brodband power amplifier and power meter NSG 4070 RF out 7 8 9 MHz dBµV FRQ LVL 4 5 6 kHz dBm STO RCL 1 2 3 Hz V StSize Step StSize StSize Step . Step 2 0 Power meter Amp in 6 dB attenuator < +10 dBm Amp out ch.3 < +20 dBm ch.2 < +20 dBm 1 Enter Local RF MOD ON/OFF Help 2nd 3 Tuning Hold ch.1 < +27 dBm Back Run Stop USB ISN ST08 view to RJ45 connection Equipment under test Auxiliary equipment AE Power ISN S AE Port EUT EUT Port Ground plane Insulating Mechanical specifications Size (W x H x D): Weight: 245 mm x 100 mm x 100 mm approx. 1.5 kg Model No. and options Teseq GmbH Landsberger Str. 255 · 12623 Berlin · Germany T + 49 30 56 59 88 35 F + 49 30 56 59 88 34 [email protected] www.teseq.com © December 2014 Teseq ® Specifications subject to change without notice. Teseq ® is an ISO-registered company. Its products are designed and manufactured under the strict quality and environmental requirements of the ISO 9001. This document has been carefully checked. However, Teseq ® does not assume any liability for errors or inaccuracies. 82-248650 E03 December 2014 Part number Description 248650 97-248650 247825 242439 ISN ST08 ISN for screened eight lines with RJ45 connector ISN Sxxx-TC Traceable calibration (ISO17025), order only with ISN S, related to CISPR 22 / 32 and IEC / EN 61000-4-6 CAL U100B Universal calibration unit (150 Ω / 50 Ω adapter) SAR T800 Calibration adapter part for ISNs with RJ45 connector (common mode adapter)