Seagate ST2000VX000 SV35 Series SATA Product Manual - Page 24
Acoustics, Electromagnetic immunity
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2.10 Acoustics Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward. Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation: (Number of seeks per second = 0.4 / (average latency + average access time) Drive acoustics, sound power Idle Operational, DVR (Digital Video Recorder) seeks 2.46 bels (typ) 2.65 bels (max) 2.8 bels (typ) 2.9 bels (max) 2.11 Electromagnetic immunity When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table: Table 5: Radio frequency environments Test Description Performance level Reference standard Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: B ± 8 kV EN 61000-4-2: 95 Radiated RF immunity 80 to 1,000 MHz, 3 V/m, A 80% AM with 1 kHz sine 900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz EN 61000-4-3: 96 ENV 50204: 95 Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on B external I/O EN 61000-4-4: 95 Surge immunity ± 1 kV differential, ± 2 kV com- B mon, AC mains EN 61000-4-5: 95 Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms, A 80% AM with 1 kHz sine EN 61000-4-6: 97 Voltage dips, interrupts 0% open, 5 seconds C 0% short, 5 seconds C 40%, 0.10 seconds C 70%, 0.01 seconds B EN 61000-4-11: 94 18 SV35 Series SATA Product Manual, Rev. B