Abstract: A multi-level security system may include multiple independent processors each configured to independently process data respectively from or for a different security level. For example, the multi-level security system may process data being communicated between aircrafts of different security levels. The multi-level security system may also include a configurator processor configured to manage and control the operations of the multiple independent processors. The configurator processor and the multiple independent processors may be provided and connected to each other on one single board computer to reduce the size, weight, and power requirement of the multi-level security system and to reduce the power requirement. A cross domain filter device also may be provided to filter and upgrade/downgrade data between different security levels.

Abstract: A multi-level security system may include multiple independent processors each configured to independently process data respectively from or for a different security level. For example, the multi-level security system may process data being communicated between aircrafts of different security levels. The multi-level security system may also include a configurator processor configured to manage and control the operations of the multiple independent processors. The configurator processor and the multiple independent processors may be provided and connected to each other on one single board computer to reduce the size, weight, and power requirement of the multi-level security system and to reduce the power requirement. A cross domain filter device also may be provided to filter and upgrade/downgrade data between different security levels.