• 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.
• The pluggable transceiver module minimum bend radius and connector length is met. See the Cisco
pluggable transceiver module documentation for more information.
• Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting
fixtures. Make sure that the cabling is safely away from other devices that might damage the cables.
• For switches with the optional 1100 W or 1900 W power supply module, first rack-mount the switch
before installing the power-supply module.
• Make sure that power supply modules and fan modules are securely inserted in the chassis before moving
the switch.
• When connecting or disconnecting the power cord on a switch installed with a 350 W or a 715 W power
supply that is installed above or below a 1100 W or 1900 W power supply equipped switch, you must
remove the 1100 W power supply from the switch to access the power cord.
• Airflow around the switch and through the vents is unrestricted.
• For copper connections on Ethernet ports, cable lengths from the switch to connected devices can be up
to 328 feet (100 meters).
• Temperature around the unit does not exceed 113°F (45°C). If the switch is installed in a closed or
multirack assembly, the temperature around it might be greater than normal room temperature.
• Humidity around the switch does not exceed 95 percent.
• Altitude at the installation site is not greater than 10,000 feet.
• Cooling mechanisms, such as fans and blowers in the switch, can draw dust and other particles causing
contaminant buildup inside the chassis, which can result in system malfunction. You must install this
equipment in an environment free from dust and foreign conductive or corrosive materials. For more
information, see Air Quality and Corrosion.
Site Requirements
Planning a proper location for the switch and layout of the equipment rack or wiring closet is essential for
successful system operation. These sections describe some of the basic site requirements that you should be
aware of as you prepare to install your switch, including the following:
• Environmental factors can adversely affect the performance and longevity of your system.
• Install the switch in an enclosed, secure area, ensuring that only qualified personnel have access to the
switch and control of the environment.
• Equipment that is placed too closely together or that is inadequately ventilated may cause system
over-temperature conditions, leading to premature component failure.
• Poor equipment placement can make chassis panels inaccessible and difficult to maintain.
• The switch requires a dry, clean, well-ventilated, and air-conditioned environment.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
34
Preparing for Installation
Site Requirements
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