What component of the SIU interfaces with the radar set and FAAD C21?

The signal data processor is responsible for interfacing with the radar set and the FAAD C21 in the System Integration Unit (SIU). Its main function is to collect, process, and disseminate data from the radar set, which includes target tracking information and other operational data. This processed information is critical for effective air defense operations, as it provides situational awareness and decision support for the command and control elements.

In the context of the SIU, this processor plays a vital role in ensuring that the radar's output is accurately interpreted and communicated to the FAAD C21, allowing for seamless integration and analytics between different components of the air defense system. The ability of the signal data processor to handle data in real-time enhances the operational effectiveness of air defense forces. In contrast, while the control panel allows for user interaction, the AUX interface may provide additional connections or functionalities not specifically tied to the radar or FAAD C21, and the power regulator manages electrical supply but does not directly facilitate data communication between components.