Fan noise requirements, Environmental requirements – SilverStone ST30SF User Manual
Page 8

4.9. The main power supply shall be off when the PS_ON pin is floating
(open collector). The ON/STBY pin of P1 must remain off state for 5 Sec
(maximum) prior to switching to the ON state
5. FAN NOISE REQUIREMENTS
5.1.The subject power supply is cooled by a self-contained, 80mm×15mm,
12VDC fan.
6. ENVIRONMENTAL REQUIREMENTS
The power supply will be compliant with each item in this specification for the
following Environmental conditions.
6.1. TEMPERATURE RANGE
Operating +10 to +50 deg. C
Storage -20 to +80 deg. C
6.2. HUMIDITY
6.3. VIBRATION
Operating 5 –95% RH, Non-condensing
Storage
5 –95% RH, Non-condensing
The subject power supply will withstand the following imposed conditions
without experiencing non-recoverable failure or deviation from specified output
characteristics.
Vibration Operating – Sine wave excited, 0.25 G maximum acceleration, 10-250
Hz swept at one octave / min. Fifteen minute dwell at all resonant points, where
resonance is defined as those exciting frequencies at which the device under
test experiences excursions two times large than non-resonant excursions.
Plane of vibration to be along three mutually perpendicular axes.