Among other things, a communication system and technique for transferring information between a stationary unit and a rotating unit of a computed tomography (CT) system is provided. The communication system comprises a transceiver and a contactless data-link comprising at least one physical channel. The transceiver is configured to create at least two logical channels from a single physical channel to provide for transmitting at least two types of information in a single direction and/or to provide for transmitting information bi-directionally. In this manner, an amount of data that can be transmitted over a single physical channel can be increased.