| 摘要 |
In an interface security system between a plurality of devices mutually connected and transmitting/receiving a signal, the respective devices include respective selectors selecting a connection pattern between signals transmitted/received and external terminals for transmitting/receiving the signals and switching connections between the signals and the external terminals in accordance with a connection pattern selected, and the selectors of the respective devices select a connection pattern and switch the connections in synchronization between the respective devices.
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