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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Chapter 3 Installing the Switch
Preparing to Install the Chassis
Warnings
The installation-applicable warnings are listed below. Warning translations in multiple languages are
provided in Appendix D. Refer to the statement number for the translations.
Warning
To prevent the switch from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 104°F (40°C). To prevent airflow restriction, allow at least
3 inches (7.6 cm) of clearance around the ventilation openings.
Statement 17
Warning
This unit is intended for installation in restricted access areas. A restricted access area is where
access can only be gained by service personnel through the use of a special tool, lock and key, or
other means of security, and is controlled by the authority responsible for the location.
Statement 37
Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during
normal use.
Statement 39
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Statement 43
Warning
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury
and equipment damage.
Statement 48
Warning
Ethernet cables must be shielded when used in a central office environment.
Statement 171
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
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