Patent ID: 8085554

Claim:
An electronics chassis adapted to house multiple independent electronics enclosures in stacked configuration, wherein at least one of the electronics enclosures comprises: a plurality of electrically conductive walls defining the enclosure, said enclosure including a front wall; at least a first and second set of pluggable connectors extending through said front wall of said enclosure for electrically connecting electrical cables to circuitry within the enclosure; a ventilation opening extending through said front wall of said enclosure, wherein said ventilation opening is at least partially disposed between said first and second sets of pluggable connectors; and a hollow air duct interconnected about a periphery of said ventilation opening and extending into the enclosure, wherein a plurality of apertures sized to attenuate electromagnetic interference (EMI) extend through a sidewall of said hollow air duct and wherein a combined area of said plurality of apertures is greater than an area of said ventilation opening.