Active and Passive Ethernet EMI Filters for Shielded Enclosures

The DJM ACTIV and Pasif series of EMI filters suppress both radiated and conducted emissions on Ethernet connections where signal integrity and electromagnetic security cannot be compromised. Supporting RJ-45 connections on standard CAT5, CAT6, and CAT7 cabling from 10Mbps to 10Gbps, our filters are engineered for ICD-705 SCIF and classified facilities, high-field MRI rooms, precision RF and EMC test laboratories, and reference-grade audio installations. Active filters achieve 100dB shielding effectiveness from 10kHz to 40GHz with no signal leakage on either side of the shield wall. Unlike fiber media converters, which generate their own radiated emissions inside the enclosure, DJM filters are electromagnetically quiet. Our Universal Mounting System works with any shielded enclosure from any manufacturer. Made in the USA since 2004.