| 摘要 |
A computer system which includes data transmission line and a plurality of data transmissions apparatuses connected in parallel to the data transmission line. Each data transmission apparatus generates transmission data and provides the generated transmission data to the data transmission line. In each data transmission apparatus, the generated transmission data provided to the data transmission line is wrapped around back to the respective data transmission apparatus without passing through any other data transmission apparatus. Each data transmission apparatus includes a data abnormality monitoring unit which determines whether the generated transmission data correlates with the transmission data which was wrapped around. It is determined that an abnormality occurred when the data abnormality monitoring unit determines that the generated transmission data does not correlate with the transmission data which was wrapped around.
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