| 摘要 |
A communication system is provided for distributing communications within the system while maintaining each communication at one of a plurality of different security levels. The system uses internal encryption to encode all data signals with an encryption which is specific to the security level of the particular data signal being encoded. The internal encryption is designed to segregate all data signals in the system and to maintain the segregated data signals compartmentalized while being transferred on data streams within the system via common media.
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