Acer G300 Series ユーザーズマニュアル

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 Appendix C: Rack installation guide
140
Vertical mounting hole pattern
The four vertical rails of a rack contain mounting holes arranged in a 
manner shown in the figure below: 
The system occupies 6U in the rack. Count the U positions and hole 
numbers from the bottom up.
Note: The unit of measurement used in this document is "U" 
(1U = 1.75 inches or 44.45 mm). The total sum of the heights of all 
components in the rack measured in "U" cannot exceed the 
height of the rack. For more information, refer to the 
documentation that came with your system rack. 
The distance from the center of two holes with closer spacing to the 
center of the next pair is equivalent to 1U. 
When installing components, you must start your measurement from 
the center of the two holes with closer spacing. Otherwise, the screw 
holes on the component may not match those on the rack.
aa300.book  Page 140  Tuesday, December 17, 2002  5:27 PM