Environmental Specifications - Sun Oracle SPARC T4-1 Installation Manual

Environmental Specifications

Install and operate the server in a site with an ambient temperature range of 21˚C
(69.8˚F) to 23˚C (73.4˚F), which is an optimal range 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.
Operating the server in a site with ambient relative humidity levels between 45% and
50% prevents corrosion, provides an operating time buffer in the event of
environmental control system failure, and helps avoid failures caused by static
discharges that occur when relative humidity is too low.
Note – Electrostatic discharge is easily generated and less easily dissipated in areas
where the relative humidity is below 35%, and becomes critical when levels drop
below 30%.
The server has been tested to meet all functional requirements when operating in the
operating environmental limits listed in the table below (all values are for a single,
non-rackmounted server).
Parameter
Operating temperature
Non-operating temperature
Operating humidity
Non-operating humidity
Operating altitude
Non-operating altitude
Operating vibration
Non-operating vibration
Operating shock
Non-operating shock
Value
° ° ° °
5 C to 35 C (41 F to 95 F)
° ° °
-40 C to 65 C (-40 F to 149
10% to 90% relative humidity, 27
web bulb, noncondensing
Up to 93% relative humidity, 38
web bulb, noncondensing
*
Up to 3000 m (10,000 ft)
is derated by 2 degrees C for every 1 km (3.6 degree F
per 3,280 ft); IEC 60068-2-13 Test M, and 60068-2-41 Test
Z/BM
Up to 12,000 m (40,000 ft); IEC 60068-2-13 Test M
0.15 G (vertical), 0.10 G (horizontal), 5 – 500 Hz,
swept-sine
0.5 G (vertical), 0.25 G (horizontal), 5 – 500 Hz,
swept-sine
3.0 G, 11 ms, half-sine
• Roll-off: 1-inch roll-off free fall, front to back rolling
directions
• Threshold: 25 mm threshold height at 0.75 m/s impact
velocity
Confirming Server and Site Specifications
°
F)
° °
C (80.6 F) maximum
° °
C (100.4 F) maximum
, maximum ambient temperature
11