Cisco Nexus 9508 Hardware Installation Manual page 20

Rack and Cabinet Requirements
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
mounting rails that conform to English universal hole spacing per section 1 of the ANSI/EIA-310-D-1992
standard.
• The height of the rack or cabinet must accommodate the 13-RU (22.7 inches or 57.8 cm) height of the
switch and its bottom support bracket.
• The depth of a four-post rack must be 24 to 32 inches (61.0 to 81.3 cm) between the front and rear
mounting brackets.
• Required clearances between the chassis and the edges of its rack or the interior of its cabinet are as
follows:
Additionally, you must consider the following site requirements for the rack:
• Power receptacles must be located within reach of the power cords used with the switch.
• Clearance is required for cables that connect to as many as 384 ports (in addition to the cabling required
for other devices in the same rack). These cables must not block access to any removable chassis modules
or block airflow into or out of the chassis. Route the cables through the cable management frames on
the left and right sides of the chassis.
Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor
Warning
before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over.
Cisco Nexus 9508 Switch Site Preparation and Hardware Installation Guide
10
◦ 4.5 inches (11.4 cm) between the front of the chassis and the front of the rack or 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).
◦ Power cords for 3-kW AC power supplies are 8 to 12 feet (2.5 to 4.3 m) long.
Preparing the Site
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