| 摘要 |
A data communications apparatus comprises a memory and a system controller including a data transfer unit and a determination unit. The data transfer unit receives data from a source terminal, stores the received data in the memory, and transfers the stored data to a destination terminal. The determination unit determines whether data transfer to the destination terminal has been successfully carried out. The data transfer unit further tries to retransmit the data up to a predetermined number of times if the data transfer has been unsuccessful. The memory retains the data for a predetermined period of time if the predetermined number of retransmissions was unsuccessful.
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