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v Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
v Use the black side of a grounded work mat to provide a
static-free work surface. The mat is especially useful
when handling ESD-sensitive devices.
v Select a grounding system, such as those listed below,
to provide protection that meets the specific service
requirement.
Note
The use of a grounding system is desirable but
not required to protect against ESD damage.
– Attach the ESD ground clip to any frame ground,
ground braid, or green-wire ground.
– Use an ESD common ground or reference point
when working on a double-insulated or
battery-operated system. You can use coax or
connector-outside shells on these systems.
– 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 IBM Personal Computer models are equipped from
the factory with a CD-ROM drive or DVD drive. CD-ROM
drives or DVD drives are also sold separately as options.
The CD-ROM drive or DVD drive is a laser product. The
CD-ROM drive or DVD drive 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
16 ThinkPad A21e