Cisco Systems 520 manual Installing the Switch Installation Guidelines

Chapter 3 Installing the Switch

Installation Guidelines

•The heat sinks and the bottom of the Catalyst Express 520-8PC-K9 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 in a closet, in a cabinet, or in a closed or multirack assembly).

•Airflow around the switch and through the vents is unrestricted.

Note We strongly recommend that you allow at least 3 inches (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.

•Do not place any items on the top of the switch.

•Allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.

•Do not wall-mount the switch with its front panel facing up or sideways. According to safety regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide easier access to the cables.

•Clearance to front and rear panels is such that

–Airflow around the switch and through the vents is unrestricted.

–Front-panel LEDs can be easily read.

–Access to ports is sufficient for unrestricted cabling.

–AC power cord can reach from the AC power outlet to the connector on the switch rear panel.

•Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures.

•Cabling is safely away from other devices that might damage the cables.

For additional cabling guidelines, see the “Cabling Guidelines” section on page A-10.

	User Guide for the Catalyst Express 520 Switches
3-6	OL-12761-02