Description
The solutions focused on protecting areas electromagnetically, usually consist of fitting metal enclosures in the infrastructure to be protected, and are known as safe rooms or TEMPEST rooms.
The solutions focused on protecting equipment electromagnetically, usually consist of covering each terminal to be protected by means of metal enclosures or metallization of their own casings, and are known as tempest equipment or terminals.
Protected equipment can be transported and has a lower cost than a secure room, but on the other hand, in a secure room, any information device that has become obsolete can be renewed with conventional equipment, with no effect on security, simply by adding a bulkhead connector or a filter if necessary; however, when a protected terminal becomes obsolete, its protection becomes obsolete and cannot be used for conventional equipment, which means that new specially protected equipment must be purchased, with the cost and delay that this implies.
A particular case of more versatile equipment protection is electromagnetic protection through the use of shielded racks, which due to their capacity to accommodate different shapes and sizes, allow the renewal of obsolete equipment without acquiring new protections.
To this end, shielded racks have a limitation directly derived from their design: designed to house specific instrumentation, the limited space available to accommodate bulkhead connectors or additional filters limits the size, number and upgradeability of the devices that can be housed in them.
