Fujitsu MJA2500BH Maintenance Manual - Page 33
Acoustic Noise, 1.6 Shock and Vibration, 0B [MJA2250BH/MJA2160BH/MJA2120BH/MJA2080BH]
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1.5 Acoustic Noise 1.5 Acoustic Noise Table 1.5 lists the acoustic noise specification. Table 1.5 Acoustic noise specification Item Specification • Idle mode (DRIVE READY) Sound Power 2.0B [MJA2250BH/MJA2160BH/MJA2120BH/MJA2080BH] 2.4B [MJA2500BH/MJA2400BH/MJA2320BH] Sound Pressure (at 0.3m) 22dB [MJA2250BH/MJA2160BH/MJA2120BH/MJA2080BH] 28dB [MJA2500BH/MJA2400BH/MJA2320BH] Note: Measure the noise from the cover top surface. 1.6 Shock and Vibration Table 1.6 lists the shock and vibration specification. Table 1.6 Shock and vibration specification Item Vibration (Swept sine, 1/4 octave per minute) • Operating Specification 5 to 500 Hz, 9.8m/s2 0-peak (1G 0-peak) (without non-recovered errors) Non-operating Shock (half-sine pulse) • Operating • Non-operating 5 to 500 Hz, 49m/s2 0-peak (5G 0-peak) (no damage) 3430 m/s2 0-peak (350G 0-peak) 2ms duration (without non-recovered errors) 8820 m/s2 0-peak (900G 0-peak) 1ms duration 1176 m/s2 0-peak (120G 0-peak) 11ms duration (no damage) C141-E293 1-11