Test for Prominent Discrete Tones PDTs

Drive Specifications

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2.10.1 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.

2.11 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 4 Radio frequency environments

Test	Description	Performance	Reference
Test	Description	Level	standard
		Level	standard

Electrostatic	Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV	B	EN61000-4-2: 95
discharge	Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV
discharge

	80MHz to 1,000MHz, 3 V/m,	A	EN61000-4-3: 96
Radiated RF	80% AM with 1kHz sine		ENV 50204: 95
immunity	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	± 1 kV on AC mains, ± 0.5 kV on external I/O
transient

Surge	± 1 kV differential, ± 2 kV common, AC mains	B	EN61000-4-5: 95
immunity	± 1 kV differential, ± 2 kV common, AC mains
immunity

Conducted RF	150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz	A	EN61000-4-6: 97
immunity	sine

	0% open, 5 seconds	C	EN61000-4-11: 94
Voltage dips,	0% short, 5 seconds	C
interrupts	40%, 0.10 seconds	C
	70%, 0.01 seconds	B

2.12 Warranty

To determine the warranty for a specific drive, use a web browser to access the following web page: support.seagate.com/customer/warranty_validation.jsp

From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive serial number, model number (or part number) and country of purchase. The system will display the warranty information for your drive.

2.13 Agency certification

2.13.1 Safety certification

These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked as to the certify agency.

2.13.2 Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic Compatibility Directive (2004/108/EC) as put into place 20 July 2007. Testing is performed to the levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined by EN55022, Class B and the immunity levels are defined by EN55024.

20	Barracuda Green SATA Product Manual, Rev. B