IBM System x3550 M4 Installation And User Manual page 73

Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices,
or transmitters) are installed, note the following:
v Do not remove the covers. Removing the covers of the laser product
could result in exposure to hazardous laser radiation. There are no
serviceable parts inside the device.
v Use of controls or adjustments or performance of procedures other
than those specified herein might result in hazardous radiation
exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the
beam.
6. Touch the static-protective package that contains the new optical drive to any
unpainted metal surface on the server; then, remove the optical drive from the
package and place it on a static-protective surface.
7. Follow the instructions that come with the DVD drive to set any jumpers or
switches.
8. Attach the drive retention clip that you removed from the optical drive filler
panel to the side of the DVD drive.
Chapter 2. Installing optional devices
57