Facility Cooling Requirements; Chassis Airflow - Cisco Nexus 7000 Series Hardware Installation And Reference Manual

Technical Specifications
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Facility Cooling Requirements

The Cisco Nexus 7000 Series switches dissipate considerable power that generates much heat. The following
is the heat dissipation requirement for these switches:
• Cisco Nexus 7004 dissipates up to 9737 BTUs per hour
• Cisco Nexus 7009 dissipates up to 28,101 BTUs per hour
• Cisco Nexus 7010 dissipates up to 35,162 BTUs per hour
• Cisco Nexus 7018 dissipates up to 51,195 BTUs per hour

Chassis Airflow

The Cisco Nexus 7000 Series switches are designed to work in a hot-aisle/cold-aisle environment using
front-to-back, side-to-side, or side-to-back airflow. Each of these switches uses one of the following airflow
directions:
Vertical rack-mount post for neighboring rack
Nearest object or inside of cabinet (side
clearance required for airflow)
Air intake from cold aisle for the power supplies
Air intake from cold aisle for the supervisor,
fabric, and I/O modules
Air exhaust to hot aisle for the power supplies
Air exhaust to hot aisle for the supervisor, fabric,
and I/O modules
Side clearance recommended for open rack
installations:
• If next to another open rack, use 6 inches
(15.2 cm).
• If next to a wall, use 11 inches (27.9 cm).
14 Side clearance recommended for open rack
installations:
• If next to another open rack, use 6 inches
If next to a wall, use 11 inches (27.9 cm)
15 Rear service clearance required to replace fan
trays and fabric modules
16 Airflow clearance required between the chassis
and inside of cabinet (cabinet installations only)
17 Chassis depth
18 Clearance required between the front of the
chassis and the inside of the cabinet (cabinet
installations) or edge of the cold aisle (rack
installations) for the cable management frames
and the optional front door
19 Front service clearance required for installing
the chassis and replacing the modules
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
Facility Cooling Requirements
(15.2 cm).
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