The T-ISN measures the asymmetric disturbance voltage (common mode voltage) and provides it to an EMI Receiver. T-ISN is normally used for measuring telecommunication and data transmission equipment connected to symmetrical lines as e.g. twisted pairs.
Impedance Stabilisation Network NTFM 8131 A, also known as T-ISN, is used to measure the asymmetrical interference voltage on symmetrical data or telecommunication lines. Since 2002 the T-ISN is used for measurements of the asymmetrical disturbance voltage according EN 55015…
The CALIBRATION KIT 8131 is used to cali-brate the NTFM 8131 A. It is not suitable for calibrating the previous version NTFM 8131. The following measurands can be measured: LCL (Longitudinal Conversion Loss) in accordance with ITU-T recommendations G.117 and…
ISN T8 CAT6 (LCL = 75 dB) is fully compliant to CISPR 22, CISPR 32 for up to 4 pairs UTP. The ISN NTFM 8158 allows to perform common mode disturbance voltage measurements on unshielded twisted pairs (UTP) or communication…
ISN T8 CAT5 (LCL = 65 dB) is fully compliant to CISPR 22, CISPR 32 for up to 4 pairs UTP. The ISN CAT5 8158 allows to perform common mode disturbance voltage measurements on unshielded twisted pairs (UTP) or communication…
ISN T8 CAT3 (LCL = 55 dB) is fully compliant to CISPR 22, CISPR 32 for up to 4 pairs UTP. The ISN CAT3 8158 allows to perform common mode disturbance voltage measurements on unshielded twisted pairs (UTP) or communication…
The Calibration Kit 8158 can be used to measure the most relevant parameters of an ISN NTFM 8158 or an ISN of this series like e.g. CAT5 8158 or CAT3 8158. Depending on the measuring task, adapters are necessary in…
The test balun PB58 allows to measure the LCL (LCL=longitudinal conversion loss) of an ISN (Impedance Stabilisation Network) according to ITU-T recommendations G.117 and O.9 as well as CISPR 16 and CISPR 22. Scope of Delivery The LCL calibration kit…
The impedance stabilization network ISN 303417 is used for the measurement of conducted disturbances using a current clamp on WPT (wireless power transmission) systems. It is especially designed according to ETSI EN 303417 chapter 6.2.4. For common mode signals the…
ISN 50561-3 is an impedance stabilization network (ISN) for measurements of unsymmetrical disturbance voltage on equipment for power line communication (PLC). This ISN is built according to the standard EN 50561-3, Annex B. Frequency range: 30 MHz … 118 MHz…
ISN 50561-1 is an impedance stabilization network (ISN) for measurements of asymmetrical disturbance voltage of power line communication equipment. This ISN is built according to the standard EN 50561-1:2012, Annex B, Figure B.1. Frequency range: 1.6 MHz … 30 MHz…
CS-50 is a resistive, unsymmetrical two way splitter with an impedance of 50 Ω It is part of the measurement setup according to EN 50561-1:2012 which is explained in chapter 9.2.Figure 4 shows the measurement setup with the available components.…
The AC separators provide connectivity between the LISNs and the device under test (DuT) respectively the auxiliary equipment (AE) as well as the connection to the measurement setup. Two of the R/C elements required by the standard EN 50561-1 are…
The coupling unit CU 50561-1 belongs to the equipment for measurements at powerline transmission devices. The specifications for the measurements at PLC devices are included within the standard EN-50561-1. Combined with two line impedance stabilization networks (LISN) the coupling unit…
SY 9223-50561-1 is a symmetrical transformer which provides impedance transformation and a specified insertion loss. It transforms an unsymmetrical 50 Ω signal into a symmetrical signal with an impedance of 100 Ω and attenuates the power by 8 dB. It…
SPLIT 100 is a resistive, symmetrical two port splitter with an impedance of 100 Ω. It is part of the measurement setup according to EN 50561-1:2012. This splitter is built in a resistive way. Resistors made with tight tolerances and…
The SYMAT 40 is a high-precision 100 Ω symmetrical step attenuator designed for accurate signal attenuation. Compliant with EN 50561-1:2012 (section 9.2), it ensures consistent performance in measurement setups. It stands out for its very flat frequency response of typically…