The architecture of the SITAEL Microsatellite-class Platform is based on two modules, namely the bus module and the payload module, that contain all the subsystems and payloads. In particular, thanks to the heritage of past missions, most of the subsystems and their units are arranged inside aluminum trays in order to provide physical separation, flexibility and reduced MAIT effort. The main bus is physically separated from the payloads and integration can be performed separately. In order to increase the overall system reliability, redundancy is implemented for most subsystems and units.
SITAEL S-75 Platform can be also equipped with Hall effect electric propulsion, deployable solar arrays and fine AOCS.