Installation Guidelines - Cisco Unified 500 Series Getting Started

The following statement is applicable only in Scandinavian countries.
Warning

Installation Guidelines

When deciding where to place the Cisco Catalyst Express 520 switch, be sure to observe these
requirements:
• Altitude at the installation site is not greater than 10,000 feet (3,049 meters).
• Humidity around the switch does not exceed 85 percent.
• Temperature around the unit does not exceed 113˚F (45˚C).
Note If the switch is installed in a closed environment or in a multirack assembly, the
temperature around it might be greater than normal room temperature.
• The heat sinks and the bottom of the Cisco Catalyst Express 520 switch might be hot to the touch
if the switch is operating at its maximum temperature 113˚F (45˚C) and is in an environment that
exceeds normal room temperature (such as a closet, a cabinet, or a closed or multirack assembly).
• Do not place any items on the top of the switch.
• Airflow around the switch and through the vents is unrestricted.
Note We strongly recommend that you allow at least 3 in. (7.6 cm) of clearance around the
ventilation openings to prevent airflow restriction and overheating.
• Do not stack switches or place switches side-by-side unless they are separated on all sides by at
least 3 inches (7.6 cm) of clearance from each other.
• Clearance at front and back panels is such that
Airflow around the switch and through the vents is unrestricted.
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Front-panel LEDs can be easily read.
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T his unit is intended for installation in restricted access areas. A restricted
access area can be accessed only through the use of a special tool, lock and
key, or other means of security. Statement 1017