3-3
User Guide for the Catalyst Express 520 Switches
OL-12761-02
Chapter 3 Installing the Switch
Warnings
Warning
To comply with safety regulations, mount switches on a wall with the front
panel facing up.
Statement 266
Statement 371—Power Cable and AC Adapter
Warning
Do not work on the system or connect or disconnect cables during periods of
lightning activity.
Statement 1001
Warning
Read the installation instructions before connecting the system to the power
source.
Statement 1004
.
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you
must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the
top with the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the unit in the rack.
Statement 1006
