Seagate Pipeline HD Mini Series SATA ST91603110CS, Product Manual

Page: 22 / 46

12 Pipeline HD Mini Series SATA Product Manual, Rev. E
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels .
Test for Prominent Discrete Tones (PDTs)
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this process
is the use of the absolute threshold of hearing. Seagate uses the lower limit for the threshold curve* to discern tone
audibility and to compensate for the inaudible components of sound prior to computation of tone ratios according to
Annex D of the ECMA-74 standards.
*Defined as the median curve given by ISO 389-7 (Tf curve) minus 10dB at all frequencies.
2.12 Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in perfor-
mance when subjected to the radio frequency (RF) environments defined in the following table:
2.1 bels (typ)
2.2 bels (max)
2.3 bels (typ)
2.4 bels (max)
2.0 bels (typ)
2.1 bels (max)
2.1 bels (typ)
2.2 bels (max)
Table 6: Radio frequency environments
Test Description
Performance
level Reference
standard
Electrostatic discharge Contact, HCP, VCP:
±
4 kV; Air:
±
8 kV B EN 61000-4-2: 95
Radiated RF immunity 80 to 2,000 MHz, 10 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz
A EN 61000-4-3: 96
ENV 50204: 95
Electrical fast transient
±
1 kV on AC mains,
±
0.5 kV on external I/O B EN 61000-4-4: 95
Surge immunity
±
1 kV differential,
±
2 kV common, AC mains B EN 61000-4-5: 95
Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz
sine
A EN 61000-4-6: 97
Power Frequency H-field
immunity
1 A/m, 50Hz/60Hz, 3 axes A EN 61000-4-8: 97
Voltage dips, interrupts 30% Reduction for 25 cycles
>95% Reduction for 250 cycles
>95%, 0.5 cycles
C
C
B
EN 61000-4-11: 94
Table 5: Drive A-weighted Sound Power Levels (SWL, BA)