Total (BTU/hour)Unit Heat
(BTU/hour)
Maximum
Unit Heat
(BTU/hour) Typical
Number InstalledEnclosure Type
20.520.5200GB SAS 2.5”
SSD, Gen1
20.520.5200GB SAS 2.5”
SSD, Gen2
20.520.5400GB SAS 2.5” SSD
6868Maintenance switch
(Ethernet)
1
392358Rack-mount system
console (NSCR212)
9696Rack-mount keyboard
and display
1
Maintenance switch has only one plug. If a UPS is installed in the rack, the maintenance switch plug must be connected
to the extension bars on the right side of the rack.
Operating Temperature, Humidity, and Altitude
Maximum Rate of Change
per Hour
Recommended Range
1
Operating Range
1
Specification
50° to 95° F (10° to 35° C)Temperature (rack-mounted
system console and
maintenance switch)
18° F (10° C) Repetitive68° to 77° F (20° to 25° C)
36° F (20° C) Nonrepetitive
-50° to 95° F (10° to 35° C)Temperature (CLIMs, SAS
disk enclosure, blade
elements)
1.8° F (1° C) Repetitive
5.4° F (3° C) Nonrepetitive
6%, noncondensing40% to 50%,
noncondensing
20% to 80%,
noncondensing
Humidity
--0 to 10,000 feet (0 to 3,000
meters)
Altitude
2
1
Operating and recommended ranges refer to the ambient air temperature and humidity measured 19.7 in. (50 cm)
from the front of the air intake cooling vents.
2
For each 1000 feet (305 m) increase in altitude above 10,000 feet (up to a maximum of 15,000 feet), subtract 1.5× F
(0.83× C) from the upper limit of the operating and recommended temperature ranges.
Nonoperating Temperature, Humidity, and Altitude
• Temperature:
-22° to 140° F (-30° to 60° C)◦
◦ Maximum rate of change: 36° F/hr (20° C/hr)
◦ Reasonable rate of change with noncondensing relative humidity during the transition
from warm to cold
• Relative humidity: 10% to 85%, noncondensing
• Altitude: 0 to 40,000 feet (0 to 12,000 meters)
54 System Installation Specifications for NS2300 Systems
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