Rack And Cabinet Requirements - Cisco Nexus 9348GC-FXP Hardware Installation Manual

Preparing the Site
• Port-side intake airflow—Cool air enters the chassis through the port end in the cold aisle and exhausts
You can identify the airflow direction of each fan and power supply module by its coloring as follows:
• Blue coloring indicates port-side exhaust airflow.
• Burgundy coloring indicates port-side intake airflow.
Note To prevent the switch from overheating and shutting down, you must position the air intake for the switch in
a cold aisle. The fan and power supply modules must have the same direction of airflow (even if their coloring
is different). If you must change the airflow direction for the switch, you must shutdown the switch before
changing the modules.

Rack and Cabinet Requirements

You can install the following types of racks or cabinets for your switch:
• Standard perforated cabinets
• Solid-walled cabinets with a roof fan tray (bottom-to-top cooling)
• Standard open four-post Telco racks
Work with your cabinet vendors to determine which of their cabinets meet the following requirements or see
the Cisco Technical Assistance Center (TAC) for recommendations:
• Use a standard 19-inch (48.3-cm), four-post Electronic Industries Alliance (EIA) cabinet or rack with
• The depth of a four-post rack must be 24 to 32 inches (61.0 to 81.3 cm) between the front and rear
• Required clearances between the chassis and the edges of its rack or the interior of its cabinet are as
Also, you must have power receptacles that are located within reach of the power cords that are used with the
switch.
through the fan and power supply modules in the hot aisle.
mounting rails that conform to English universal hole spacing per section 1 of the ANSI/EIA-310-D-1992
standard.
mounting rails (for proper mounting of the bottom-support brackets or other mounting hardware).
follows:
• 4.5 inches (11.4 cm) between the front of the chassis and the interior of the cabinet (required for
cabling).
• 3.0 inches (7.6 cm) between the rear of the chassis and the interior of the cabinet (required for airflow
in the cabinet if used).
• No clearance is required between the chassis and the sides of the rack or cabinet (no side airflow).
Cisco Nexus 9348GC-FXP ACI Mode Hardware Installation Guide
Rack and Cabinet Requirements
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