NEC Express 5800/140Rb-4, Service Manual

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Space and Power Requirements
Table 2. EXPRESS5800/140Rb-4 Server Physical Specifications
Specification Rack Mode Only
Height 7 inches (178 mm) (4u)
Width 17.5 inches (445 mm)
Depth 28.0 inches (711 mm)
Weight 57 pounds (25.9 kg), minimum configuration
77 pounds (35.0 kg), maximum configuration
Required front clearance 3 inches (76 mm), inlet airflow <35 °C (95 °F)
Required rear clearance 4.5 inches (114 mm), no airflow restriction
Required side clearance 1 inch (25 mm)
Power requirements
Voltage (110)
Voltage (220)
Frequency
90 V
rms
min, 132 V
rms
max, 8 A
rms
*
180 V
rms
min, 264 V
rms
max, 4 A
rms
*
47 Hz min, 63 Hz max
* Amperage is total system power, with two or three power supply modules
installed, with one or two AC cords.
For detailed information on calculating power consumption for specific server configurations, see
page 135.
General Site Criteria
The server operates reliably within normal office environmental limits. Select a site that meets
these criteria:
•
Near a properly grounded, three-pronged power outlet.

In the United States and Canada: a NEMA 6-15R outlet for 100-120 V and for
200-240 V.

In other geographic areas: a properly grounded outlet in accordance with the local
electrical authorities and electrical code of the region.
•
Clean and relatively free of excess dust.
•
Well-ventilated and away from sources of heat, with the ventilating openings
on the server kept free of obstructions.
•
Maximum ambient air temperature should not exceed 35 °C (95 °F).
•
Away from sources of vibration or physical shock.
•
Isolated from strong electromagnetic fields and noise caused by electrical
devices such as elevators, copy machines, air conditioners, large fans, large
electric motors, radio and TV transmitters, and high-frequency security
devices.
•
Access space provided so the server power cords can be unplugged from the
power supply or the wall outlet; this is the only way to remove AC power
from the server.
•
Clearance provided for cooling and airflow.