Seagate ST1.3 ST1.3 Series Product Manual - Page 18

2.8.5 Shock All shock measurements in this section are carried out at drive level. For all linear shock test, operating or nonoperating, the input shock level shall be measured at the frame of the disk drive at the specific location indicated by the ellipse in Figure 5 below for the ZIF interface drives. Figure 5. Location where tri-axial accelerometer will be placed on ST1.3 Series drives All shock test will cover all the 6 directions, +/- x, y and z axes. The drive axis definition in shown in Figure 6 below. Figure 6. Drive axis definition for ST1.3 Series drives 2.8.5.1 Operating shock The drive will be subjected to 10 shocks for each direction. During the shocks, there must be a minimum delay of 3 seconds between shock pulses. Soft errors and automatic retries are allowed during the test. No data loss or permanent damage occurs during a half sine shock pulse of: 300 Gs, 1 msec 2.8.5.2 Nonoperating shock The nonoperating shock level that the drive can experience without incurring any physical damage when subsequently put into operation is 2000 Gs. The same applies for shock levels of 2000 Gs, 1 msec pulse duration on fresh drives for each level. 2.8.6 Vibration All vibration specifications assume that the drive is mounted securely in a fixture that does not have fixture resonances in the frequency test range. 12 ST1.3 Series Product Manual, Rev. D