Data communications device, data communications system, data communications method, data communications computer program, and computer-readable storage medium containing computer program

摘要

In a data communications device, if a data comparator section determines that one of two transceivers transmit/receive data, a control section returns data received from one of the transceivers with which communications are possible via that transceiver, not via the other transceiver with which communications are determined to be impossible. Therefore, even when a channel or data communications device of a data communications system experiences trouble, the whole data communications system can be prevented from being unusable.