A base station accommodating a user terminal may include a user data management database configured to store user data, a security managing part configured to manage groups to which the user data are open, and a user data managing part configured to manage the user data. The conveyor-technology device comprises a guide means and conveyor means which may be moved along the guide means, for conveying printed products which are fed by way of feeders. The device accepts any combination of rotated and non-rotated articles and can rotate them through angles up to and through 360 degrees. The optical transceiver then recovers the firmware from the optical signal. The inner sleeve has a series of flow ribs extending from its outer surface within the space, and has entry holes for providing fluid communication from the space into the passageway. The device may be mounted in a fixed location or it may be mounted upon a mobile platform.