FUJITSU Disk Drives MHJ2181AT - Manual (Page 29)

Device Overview
1-8 C141-E088-01EN
1.5 Acoustic Noise
Table 1.5 lists the acoustic noise specification.
Table 1.5 Acoustic noise specification
Item Specification
Sound Pressure
• Idle mode (DRIVE READY) 30 dBA typical at 1 m
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 Specification
Vibration (swept sine, one octave per minute)
• Operating
• Non-operating
5 to 500 Hz, 1.0G 0-peak (MHJ series)
5 to 400 Hz, 1.0G 0-peak (MHK series)
(without non-recovered errors) (9.8 m/s
2 0-peak)
5 to 500 Hz, 5G 0-peak (MHJ series)
5 to 400 Hz, 5G 0-peak (MHK series)
(no damage) (49 m/s
2 0-peak)
Shock (half-sine pulse)
• Operating
• Non-operating
150G 0-peak (1,470 m/s 2 0-peak)
2 ms duration (without non-recovered errors)
700G 0-peak (6,860 m/s 2 0-peak)
1 ms duration (no damage)
120G 0-peak (1,176 m/s 2 0-peak)
11 ms duration (no damage)