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FCC Protection Level Cabinet Performance
The graph above shows cabinet performance of FCC level products. Designs for EMI/RFI shielded cabinets
vary considerably from manufacturer to manufacturer. The design
selected will be dictated, at least in part, by the actual level of
shielding required.
The ideal cabinet
is a metal box with no seams or openings. Any opening in a cabinet
creates a potential EMI/RFI path into and out of the cabinet. However,
in the real world, openings are required for maintenance and ventilation
of the equipment, as well as for electrical input. These openings must
be covered by panels and/or doors which maintain electrical continuity
by either metal-to-metal contact or by using conductive gaskets.
Military/Tempest Protection Level Cabinet Performance
The graph above shows cabinet performance of Military/Tempest level
products. Designs for EMI/RFI shielded cabinets vary considerably from
manufacturer to manufacturer. The design selected will be dictated, at
least in part, by the actual level of shielding required.
The ideal cabinet is a metal box with no seams or openings. Any
opening in a cabinet creates a potential EMI/RFI path into and out of
the cabinet. However, in the real world, openings are required for
maintenance and ventilation of the equipment, as well as for electrical
input. These openings must be covered by panels and/or doors which
maintain electrical continuity by either metal-to-metal contact or by
using conductive gaskets.
Download our catalog to see the complete product offering.