Seagate ST2000VN0001 ユーザーズマニュアル
Seagate Enterprise NAS HDD Product Manual, Rev. B
10
* 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.
†5W IDLE with DIPLM Enabled
2.8.2
Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an
equivalent 15-ohm resistive load on the +5 volt line.
equivalent 15-ohm resistive load on the +5 volt line.
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to
10MHz.
• Using 5-volt power, the drive is expected to operate with a maximum of
100 mV peak-to-peak square-wave injected noise at up to
10MHz.
2.8.3
Voltage tolerance
Voltage tolerance (including noise):
• 5V
±5%
• 12V
+10%/-7.5%
Table 2
DC power requirements
Power dissipation (6/5TB models)
Avg (25° C)
Avg 5V typ
Avg 12V typ
Spinup
—
—
<=1.8A
Idle* †
7.20W
0.20A
0.52A
Operating
9.00W
0.24A
0.65A
Standby
0.60W
0.12A
0.01A
Sleep
0.60W
0.12A
0.01A
Table 3
DC power requirements
Power dissipation (4/3TB models)
Avg (25° C)
Avg 5V typ
Avg 12V typ
Spinup
—
—
<=1.8A
Idle* †
5.90W
0.30A
0.36A
Operating
6.70W
0.357A
0.41A
Standby
0.60W
0.12A
0.01A
Sleep
0.60W
0.12A
0.01A
Table 4
DC power requirements
Power dissipation (2TB models)
Avg (25° C)
Avg 5V typ
Avg 12V typ
Spinup
—
—
<=1.8A
Idle* †
3.70W
0.18A
0.23A
Operating
5.30W
0.355A
0.297A
Standby
0.60W
0.12A
0.01A
Sleep
0.60W
0.12A
0.01A
Note
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.