Environmental Specifications - Sun Oracle SPARC T3-1 Installation Manual

Environmental Specifications

Environmental Specifications
TABLE:
Specification Operating
Temperature • Sea level to 2953 ft (900 m):
41°F to 95°F (5°C to 35°C)
• Above 2953 ft (900 m):
Decrease the maximum
allowable temperature by
1.6°F/1000 ft (1°C/300m)
IEC 60068-2-1 Test Ad, and
60068-2-2 Test Bd
10 to 90% RH, 27°C maximum
Relative
Humidity wet bulb (noncondensing)
IEC 60068-2-56 Test Cb
6 SPARC T3-1 Server Installation Guide • March 2012
Nonoperating
-40° F to 149° F (-40° C to 65°
C)
IEC 60068-2-1 Test Ab and
60068-2-2 Test Bb
93% RH, 35°C maximum wet
bulb (noncondensing)
IEC 60068-2-56 Test Cb
Notes
An ambient temperature
range of 21˚C (69.8˚F) to 23˚C
(73.4˚F) is optimal for server
reliability. At 22˚C (71.6˚F) it is
easy to maintain safe relative
humidity levels. Operating in
this temperature range
provides a buffer if the
environmental support
systems fail.
Ambient relative humidity
levels between 45% and 50%
are the most suitable for data
processing operations in order
to:
• Prevent corrosion
• Provide an operating time
buffer in the event of
environmental control
system failure
• Help avoid failures caused
by the intermittent
interference from static
discharges that occur when
relative humidity is too low
Electrostatic discharge (ESD)
is easily generated and less
easily dissipated in areas
where the relative humidity is
below 35%, and becomes
critical when levels drop
below 30%.