2.11Electromagnetic 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

 

 

 

 

 

 

 

 

 

 

Performance

Reference

Test

 

Description

level

standard

 

 

 

 

Electrostatic discharge

Contact, HCP, VCP: ± 4 kV; Air:

B

EN 61000-4-2: 95

 

 

± 8 kV

 

 

 

 

 

 

Radiated RF immunity

80 to 1,000 MHz, 3 V/m,

A

EN 61000-4-3: 96

 

 

80% AM with 1 kHz sine

 

ENV 50204: 95

 

 

900 MHz, 3 V/m, 50% pulse

 

 

 

 

modulation @ 200 Hz

 

 

 

 

 

 

Electrical fast transient

± 1 kV on AC mains, ± 0.5 kV on

B

EN 61000-4-4: 95

 

 

external I/O

 

 

 

 

 

 

Surge immunity

± 1 kV differential, ± 2 kV com-

B

EN 61000-4-5: 95

 

 

mon, AC mains

 

 

 

 

 

 

Conducted RF immunity

150 kHz to 80 MHz, 3 Vrms,

A

EN 61000-4-6: 97

 

 

80% AM with 1 kHz sine

 

 

 

 

 

 

Voltage dips, interrupts

0% open, 5 seconds

C

EN 61000-4-11: 94

 

 

0% short, 5 seconds

C

 

 

 

40%, 0.10 seconds

C

 

 

 

70%, 0.01 seconds

B

 

 

 

 

 

 

2.12

Reliability

 

 

 

Nonrecoverable read errors

1 per 1014 bits read, max.

Annualized Failure Rate (AFR)

0.70% (nominal power, 25°C ambient temperature)

 

 

Contact start-stop cycles

50,000 cycles

 

 

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

 

 

Preventive maintenance

None required

 

 

 

18

DB35 Series 7200.2 Product Manual, Rev. C

Page 24
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Seagate ST3120213ACE, ST3160212ACE, ST3200827ACE manual Electromagnetic immunity, Reliability, Radio frequency environments