Cisco Nexus 7004 Chassis Clearances - Cisco Nexus 7000 Series Hardware Installation And Reference Manual

Technical Specifications

Cisco Nexus 7004 Chassis Clearances

Cabling clearance provides the required space in front of the chassis (often within a cabinet) for cables to
bend and connect to the chassis. Airflow clearance is typically the spacing on the left or right of the chassis
for side-to-side airflow into and out of the chassis. If a chassis has front-to-back airflow, it uses the maintenance
clearance for airflow instead of airflow clearance on the sides of the chassis.
This section includes the following topics:
Cisco Nexus 7004 Chassis Clearances
The Cisco Nexus 7004 chassis requires front clearance for cable management and maintenance, right side
clearance for cooling air intake, and an unobstructed rear for exhausting air to the hot aisle behind the chassis.
For the front, the cable management frames require 7.5 inches (19.1 cm) of clearance in front of the mounting
rails and an additional 26 inches (66.0 cm) in front of the cable management frames or the cabinet door for
maintenance. If you install the chassis with the optional center-mount bracket in place of the standard
front-mount bracket, you must add 5.7 inches (14.4 cm) to the front clearance in front of the mounting rails
on the rack. For cabinet installations, we recommend a right-side clearance of 11 inches (27.9 cm) between
the switch and the inside of the cabinet. For rack installations, we recommend a right-side clearance of either
6 inches (15.2 cm) between racks or 11 inches (27.9 cm) between the chassis and a wall. The rear of the
chassis must be unobstructed and open to the hot aisle in back of the switch for airflow exhaust. Figure 132:
Clearances Required for the Cisco Nexus 7004 in a Four-Post Rack with Front-Mount Brackets, on page 188
shows the required clearances for a chassis in a four-post rack with a front-mount installation. Figure 133:
Clearances Required for the Cisco Nexus 7004 in a Two-Post Rack with Front-Mount Brackets, on page 189
shows the required clearances for a chassis in a two-post rack with a front-mount installation. Figure 134:
Clearances Required for the Cisco Nexus 7004 in a Two-Post Rack with Center-Mount Brackets, on page 190
shows the required clearances for chassis in a two-post rack with a center-mount installation.
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