Overview
The Schwarzbeck Pilot ISN is an impedance stabilization network designed for measuring disturbance voltages in power line communication (PLC) systems in accordance with IEC 61851-21-2. It provides a defined and stable impedance between the equipment under test (EUT) and the associated equipment (AE), enabling accurate and repeatable EMC measurements.
The device ensures proper decoupling between the EUT and the communication device or load, allowing reliable evaluation of conducted disturbances in PLC environments. An integrated attenuator can be switched on to improve impedance matching when the PLC connection impedance deviates from the standard value.
The EMC Shop customers use the Schwarzbeck Pilot ISN to measure conducted disturbance voltages in PLC systems, particularly in applications such as EV charging and automotive electronics. The ISN is inserted between the EUT and the associated equipment to create a controlled and standardized test environment.
In a typical setup, the EUT is connected to the EUT port, while the communication device or load is connected to the AE (PLC) side. The ISN provides proper decoupling and stabilizes the impedance, enabling accurate measurement of disturbance voltages using EMC test equipment.
Engineers may enable the built-in attenuator to improve impedance matching across different setups, helping maintain consistent and reliable test results. The Pilot ISN is commonly used in EMC test labs for validation, troubleshooting, and compliance testing of PLC-based systems.
