4
Equipment Power Loads
The power load values for the base unit and disk array cabinet are provided below. Load values of
equipment must be taken into account when installing equipment to the rack.
Device
Max Load
System base unit with eight drives 1200 VA
Disk drive cabinet with eight 4 GB drives 265 VA
Disk drive cabinet with eight 9 GB drives 261 VA
4-port concentrator 8 VA
8-port concentrator 10 VA
PC Extender 13 VA
The VA load of Intergraph rack-mount options is printed on the back of the device. Add the VA load
for each device to determine if the AC distribution box can handle the load. If it cannot, add an
additional AC distribution box. The VA load of a device is the product of its operating Voltage (such
as 110 V or 220 V) times its current rating (2 Amperes, 3 Amperes, 6 Amperes, etc.).
Placing the System
Before you unpack the equipment and begin setting up your server, determine where you want to place
the system rack. Keep these guidelines in mind:
u
Place the rack as close as possible to the proper wall outlet. The power cord connecting the AC
distribution box or UPS to the wall outlet serves as the disconnect device.
u
Place the rack in an area where air can circulate freely around it. Ensure that the front and the back
of the rack each have 36 inches of clearance for servicing the installed hardware.
u
Do not expose the system to high levels of dust, smoke, or moisture.
u
Place the system in an area where the temperature range stays between 10
°
C and 26
°
C (50
°
F to
80
°
F). The optimum operating temperature is 21
°
C (70
°
F).
u
Place the system in an area where the humidity stays between 20 and 80 % (non-condensing). The
optimum operating humidity is 50 % (non-condensing).
u
The rack is not designed to be moved when equipment is installed (other than what is pre-installed
by Intergraph).
WARNING Once you install the equipment, do not move the rack. If you must move it, then remove all
equipment, move the rack to its new location, and re-install the equipment.
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