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2.
Rack Installation Specifications
This chapter provides the rack installation specification of the ETERNUS DX.
Rack Installation Requirements
This section explains the requirements for installing the ETERNUS DX in a 19-inch rack.
Placement in the Rack
The center of gravity must be taken into consideration to prevent a rack from toppling over when installing in a
rack. Enclosures should generally be installed from bottom to top to lower the center of gravity and to ensure
the safe use of racks.
Note
• When determining the rack-mounting layout of each enclosure, consider the length of each cord. For
example, if the ETERNUS DX is installed at the top of a 2000mm rack and a 4m power cord is used, the
surplus length of the power cord at the bottom of a rack should be about 2m.
• If the ETERNUS DX is installed at the bottom of a rack, a space for the surplus of cables may not be
available in some racks, preventing the ETERNUS DX from being pulled out when maintenance work is
required.
In this case, secure a space of 1U or more at the bottom when installing the ETERNUS DX.
• For 19-inch racks, install the power distribution unit (AC200V) in the lower part of the rack.
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