Cisco Nexus 9508 Hardware Installation Manual page 25

Preparing the Site
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 rails (for proper mounting of the bottom-support brackets or other mounting hardware).
• Required clearances between the chassis and the edges of its rack or the interior of its cabinet are as
follows:
Also, you must consider the following site requirements for the rack:
• Power receptacles must be located within reach of the power cords that are used with the switch.
Note
• Clearance is required for cables that connect to as many as 288 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.
Also, you must have power receptacles that are located within reach of the power cords that are used with the
switch.
Warning
Statement 1048 Rack Stabilization
The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before installation
or servicing. Failure to stabilize the rack can cause bodily injury.
• 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 and module handles).
• 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 the 3-kW AC power supplies are 8 to 12 feet (2.5 to 4.3 m) long.
• Power cords for the 3-kW Universal AC power supplies are 14 feet (4.27 m) long.
The power cables for the 3-kW DC power supply are provided by and sized
you.
Cisco Nexus 9508 ACI-Mode Switch Hardware Installation Guide
Rack and Cabinet Requirements
15