Rack Installation Specifications; Rack Installation Requirements; Placement In The Rack; Table 32 Shelf Installation Order - Fujitsu ETERNUS AB Series Site Planning Manual

2.

Rack Installation Specifications

This chapter provides the installation specification of the ETERNUS AB/HB.

Rack Installation Requirements

This section explains the requirements for installing the ETERNUS AB/HB in a 19-inch rack.

Placement in the Rack

Note the following when installing the ETERNUS AB/HB in the rack.
• The center of gravity must be taken into consideration to prevent a rack from toppling over.
Shelves should generally be installed from bottom to top to lower the center of gravity and to
ensure the safe use of racks.
• Shelves are installed in the following order (from bottom to top).
Table 32
Installation order
6
5
4
3
2
1
*1: Uninterruptible Power Supply.
• When determining the rack-mounting layout of each shelf and power distribution unit, consider
the length of each cord. For example, if the ETERNUS AB/HB is installed at the top of a 2000
mm rack and a 4 m power cord is used, the surplus length of the power cord at the bottom of a
rack should be about 2 m.
• If the ETERNUS AB/HB 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 AB/HB 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 AB/HB.
• If drive shelves are to be added in the future, securing sufficient space for power distribution
units in the bottom of the rack is recommended.
• If devices are installed above and below the ETERNUS AB/HB and there is a difference in depth
of 100 mm or more, leave a space of 1U above the ETERNUS AB/HB so the rear of the unit can
be easily accessed.
Shelf Installation Order
DE212C drive shelf
DE224C drive shelf
DE460C drive shelf
Controller shelf
Controller shelf
Power distribution unit
UPS (*1)
Shelf
50
Size (height)
2U
2U
4U
2U
4U
2U
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Site Planning Guide