Seagate ST380020ACE, ST320410ACE Operating vibration, Nonoperating vibration, Drive acoustics

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U Series CE Family Product Manual, Rev. A

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1.8.6.1 Operating vibration

The following table lists the maximum vibration levels that the drive may expe- rience while meeting the performance standards specified in this document.

5–21 Hz	0.02-inch displacement (peak to peak)
22–350 Hz	0.5 Gs acceleration (zero to peak)
351–500 Hz	0.25 Gs acceleration (zero to peak)

1.8.6.2 Nonoperating vibration

The following table lists the maximum nonoperating vibration that the drive may experience without incurring physical damage or degradation in performance when subsequently put into operation.

5–21 Hz	0.2-inch displacement (peak to peak)
22–350 Hz	5.0 Gs acceleration (zero to peak)
351–500 Hz	1.0 Gs acceleration (zero to peak)

1.9 Drive acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are generally consistent with ISO document 7779. Sound power measurements were taken under essentially free-field conditions over a reflecting plane. For all tests, the drive was oriented with the cover facing upward.

Note. For seek mode tests, the drive was 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)

ST380020ACE, ST360020ACE, ST340810ACE and ST320410ACE

Acoustic mode	Idle	Performance Seek
Sound power (bels)	2.7 (typ) 3.0 (max)	2.9 (typ) 3.2 (max)

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Contents Series CE Family Page Series CE Family Page Contents ATA interface Configuring and mounting the driveFigures Series CE Family Product Manual, Rev. a Introduction Specification summary table Track-to-track seek Time msec typical Altitude meters be Low mean sea level Default logical geometry LBA ModeFormatted capacity Physical characteristics Physical organizationRecording and interface technology Start/stop times Seek timePower consumption Power specificationsTypical current profile Power Mode Typical Watts Typical Amps Means 12VPower-management modes Conducted noiseVoltage tolerance Temperature gradient Environmental tolerances Ambient temperatureSleep mode Idle and Standby timersHumidity 3.1 Relative Humidity 3.2 Wet bulb temperatureAltitude ShockOperating vibration Nonoperating vibrationDrive acoustics Agency certification 1.12.1 Safety certification Electromagnetic immunityReliability Electromagnetic compatibility Taiwan BsmiKorean RRL Australian C-Tick N176 FCC verificationHandling and static-discharge precautions Configuring and mounting the driveJumper settings Master/slave configuration Drive as master with a non-ATA-compatible slaveOptions jumper block Cable-select option Alternate capacity jumperUltra ATA/100 cable Drive mounting Recommended Case temperature Measurement locationATA interface ATA interface signals and connector pinsO pins and supported ATA signals Command name Command code in hex ATA-standard commands Supported ATA commandsCommand name Identify Drive commandATA-standard power-management commands ATA-standard security commands0C5AH Word DescriptionXx07H Word Description ValueXx3FH Bit Word Description if bit is set to Bit WordSet Features command 0AH Code in Features A.R.T. Command Register 4 S.M.A.R.T. commandsSeries CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a