IBM 2193 - Manual (Page 17)

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Laser compliance statement
Some IBM Personal Computer models are equipped from the factory with a CD-
ROM or DVD-ROM drive. CD-ROM/DVD-ROM drives are also sold separately as
options. The CD-ROM/DVD-ROM drive is a laser product. The CD-ROM/DVD-ROM
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.
When a CD-ROM/DVD-ROM drive is installed, note the following:
Removing the covers of the CD-ROM/DVD-ROM drive could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the CD-ROM/DVD-
ROM drive covers. Do not remove the CD-ROM/DVD-ROM drive covers.
Some CD-ROM/DVD-ROM drives contain an embedded Class 3A or Class 3B laser
diode. Note the following:
Caution!
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.
Danger!
Laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments,
and avoid direct exposure to the beam.