| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a unit from being arranged at a rack by mistake. Ž<P>SOLUTION: A common connector number CN1 to CN3, and CN5 to CN7 are imparted against connectors of connector units 30A to 30D, and 40A to 40D. After having housed units 30A to 30D, and 40A to 40D in a rack 1, ID numbers #1 to #8 of a unit are imparted against units 30A to 30D, and 40A to 40D. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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