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3.13.1
Free Fall Protection feature
The Free Fall Protection feature provides enhanced data protection against shock events that may occur while
the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall
event and unloading the actuator before a shock takes place in falls of >8 inches (nominal). The drive uses a
0G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.
To enable the Free Fall Protection feature on ST9750420ASG, ST9640420ASG and ST9500423ASG models,
use Set Features command 41h. To disable this feature, use Set Features command C1h.
Information about Free Fall Events that have occurred is available through SMART Attribute FEh.
Note.
The Free Fall Protection feature is provided only on ST9750420ASG, ST9640420ASG and
ST9500423ASG models.
3.14
Agency certification
3.14.1
Safety certification
The drives are recognized in accordance with UL 60950-1 and CSA C22.2 (950) and meet all applicable sec-
tions of IEC 60950-1 and EN60950-1 as tested by TUV North America.
3.14.2
Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec-
tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and
the immunity levels are defined by EN 55024.
Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous
paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators
should confirm EMC compliance and provide CE marking for their products.
Korean BCC
If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para-
graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic
Compatibility (EMC) Framework requirements of the Broadcasting Communications Center (BCC) Ministry of
Information and Communication Republic of Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil-
ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog-
nized lab.
• Certificate number: STX-Momentus (B)
• Trade name or applicant: Seagate Technology International (Wuxi) Co., Ltd.
• Date of certificate: May 25, 2009
• Manufacturer/nationality: Seagate Technology (Suzhou) Co., Ltd.
Australian C-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi-
cation Authority (ACA).
Momentus Product Manual, Rev. A
17
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