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2.8.1 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 this threshold curve (originated in ISO 389-
7)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.
2.9Electromagnetic 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 | Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV | B | EN61000-4-2: 95 |
discharge | | | |
| | | |
Radiated RF | 80 to 1,000MHz, 3 V/m, | A | EN61000-4-3: 96 |
immunity | 80% AM with 1kHz sine | | ENV 50204: 95 |
| 900MHz, 3 V/m, 50% pulse modulation @ | | |
| 200Hz | | |
| | | |
Electrical fast | ± 1 kV on AC mains, ± 0.5 kV on external I/O | B | EN61000-4-4: 95 |
transient | | | |
| | | |
Surge immu- | ± 1 kV differential, ± 2 kV common, AC mains | B | EN61000-4-5: 95 |
nity | | | |
| | | |
Conducted RF | 150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz | A | EN61000-4-6: 97 |
immunity | sine | | |
| | | |
Voltage dips, | 0% open, 5 seconds | C | EN61000-4-11: 94 |
interrupts | 0% short, 5 seconds | C | |
| 40%, 0.10 seconds | C | |
| 70%, 0.01 seconds | B | |
| | | |
Barracuda XT SATA Product Manual, Rev. D | 19 |
100586689 Rev. D September
BarracudaXT
Revision Date Description of changes
Revision History
Contents
Barracuda XT Sata Product Manual, Rev. D
Figures
Barracuda XT Sata Product Manual, Rev. D
Seagate Technology Support Services
Barracuda XT Sata Product Manual, Rev. D
About the Serial ATA interface
Introduction
Drive Specifications
Default logical geometry
LBA mode
Formatted capacity
Start/stop times
Physical characteristics
Power specifications
Recording and interface technology
Standby mode
Read/write power and current
Operating power and current
Idle mode power
Typical 12V startup and operation current profiles 3000GB
Typical 5V startup and operation current profiles 3000GB
Typical 12V startup and current profiles 2000GB
Typical 5V startup and current profiles 2000GB
Conducted noise
Power management modes
Voltage tolerance
Altitude
Environmental specifications Ambient temperature
Temperature gradient
Humidity
Vibration
Shock
Acoustics
Electromagnetic immunity
Test for Prominent Discrete Tones PDTs
Test Description Performance level Reference Standard
FCC verification
Warranty
Agency certification Safety certification
Electromagnetic Compatibility EMC
China Restriction of Hazardous Substances RoHS Directive
Environmental protection
Corrosive environment
Drive Specifications
Configuring the drive
Handling and static-discharge precautions
Serial ATA cables and connectors
Attaching Sata cabling
Drive mounting
Mounting dimensions 3000GB model
Mounting dimensions 2000GB model
Segment Pin Function Definition
3V power
Ground 2nd mate
P14
3V power, pre-charge, 2nd mate
12V power, pre-charge, 2nd mate
12V power
Command name Command code in hex
Supported ATA commands
Command name
Word Description Value
Identify Device command
57-58 Current capacity in sectors
Or Write Multiple command
Number of current logical heads
Number of current logical sectors per logical track
00DEH
BE01H
Fffeh
Bit Word
Enable read look-ahead read cache feature default
Set Features command
AAH
Code in features register A.R.T. command
3 S.M.A.R.T. commands
Barracuda XT Sata Product Manual, Rev. D
Master/slave 9 mounting
Barracuda XT Sata Product Manual, Rev. D
Barracuda XT Sata Product Manual, Rev. D
Barracuda XT Sata Product Manual, Rev. D
Page
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