| 摘要 |
A test apparatus ensures to establish communication. A test apparatus including a first communication apparatus and a second communication apparatus, where the transmitting section of the first communication apparatus transmits the first linkup code to the receiving section of the second communication apparatus, the transmitting section of the second communication apparatus transmits, instead of the first linkup code, the second linkup code in response to communication having being established between the receiving section of the second communication apparatus and the transmitting section of the first communication apparatus, and the receiving section of the first communication apparatus starts communicating with the transmitting section of the relay apparatus, in response to communication having being established with the transmitting section of the relay apparatus and reception of the second linkup code from the transmitting section of the relay apparatus.
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