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– Use the round ground-prong of the AC plug on
AC-operated computers.
Grounding requirements
Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.
Laser compliance statement
Some models of ThinkPad computer are equipped from
the factory with an optical storage device such as a
CD-ROM drive or a DVD-ROM drive. Such devices are
also sold separately as options. If one of these drives is
installed, it is certified in the U.S. to conform to the
requirements of the Department of Health and Human
Services 21 Code of Federal Regulations (DHHS 21 CFR)
Subchapter J for Class 1 laser products. Elsewhere, the
drive is certified to conform to the requirements of the
International Electrotechnical Commission (IEC) 825 and
CENELEC EN 60 825 for Class 1 laser products.
Safety information
Introduction 21