Does the conducted interference of the industrial AI edge gateway's network port meet the limits of EN 55032 Class B?

The gigabit Ethernet port of the industrial AI edge gateway is optimized to meet the EN55032 Class B limit for conducted emissions. Measures include:

1) A common-mode choke (CMZ2012A-900T) with 90Ω 100MHz common-mode impedance provides 25dB attenuation between the PHY and RJ45 connector;

2) The transformer center tap is connected to signal ground via a 1kV 1000pF capacitor;

3) The PHY power supply uses a PBZ1608E600Z0T ferrite bead and a 10μF capacitor for π-type filtering;

4) PCB layout ensures the Ethernet transformer is less than 15mm from the connector and has a cutout underneath for enhanced isolation.

CISPR25 testing shows that the quasi-peak conducted emissions in the 0.15-30MHz range are more than 6dB below the limit.