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3-5
Cisco Nexus 7000 System Site Preparation Guide
OL-15846-01
Chapter 3 Technical Specifications
System Clearances
System Clearances
You must provide adequate clearance for installing the system and replacing system modules. The aisle
in front of the system must have at least 38.0 inches of clearance to handle the depth of the system
(additional clearance might be necessary for the mechanical lift used to position the chassis in front of
the rack). The aisle in back of the system must provide at least 30 inches of clearance for replacing the
system fan trays.
Facility Cooling Requirements
The Nexus 7000 Series 10-slot chassis dissipates considerable power that generates much heat. The
following is the heat dissipation requirement for the 10-slot chassis:
• 26,562 BTUs per hour
Chassis Airflow
The Nexus 7000 Series 10-slot chassis has a set of fan trays that are used to cool the rest of the chassis
modules. Cool air flows in at the bottom front of the chassis and flows through the chassis and through
the fans in the fan trays before being exhausted at the top rear of the chassis (see Figure 3-1).