A-28
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-07
Appendix A Technical Specifications
Chassis Clearances
For two-post rack installations with front-mount brackets, the chassis requires the following clearances
(see Figure A-18):
• Front clearance requires both of the following:
–
Cabling area of 7.5 inches (19.1 cm) between the front of the chassis and the cold aisle (this
area can include the optional cable management frames)
–
Maintenance area of 28 inches (71.1 cm) in front of the cabling area for installing the chassis
and replacing modules
Note You might need to increase the maintenance area to accommodate a wide mechanical lift
used to move the chassis to or from the rack.
• Rear clearance requires 26 inches (66.0 cm) behind the chassis for cable management and for
replacing modules and power supplies
• Side clearance recommendation depends on whether you use a rack or cabinet for the installation as
follows:
–
For cabinet installations, we recommend that you use 11 inches (27.9 cm) for airflow on each
side of the chassis.
–
For rack installations, we recommend 11 inches (27.9 cm) between the chassis and a wall or 6
inches (15.2 cm) between racks.
7 Air intake from cold aisle for the supervisor,
fabric, and I/O modules
16 Chassis depth
8 Air exhaust to hot aisle for power supplies 17 Clearance required between the front of the
chassis and the inside of the cabinet (if used)
or edge of cold aisle (if no cabinet) for the
cable management frames and the optional
front doors
9 Air exhaust to hot aisle for the supervisor,
fabric, and I/O modules
18 Front clearance required for installing the
chassis and replacing the modules
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