Cisco Nexus 7004, Руководство по установке и справочное руководство по оборудованию

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A-34
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-07
Appendix A Technical Specifications
Chassis Clearances
Cisco Nexus 7018 Chassis Clearances
The Cisco Nexus 7018 chassis requires the following clearances (see Figure A-21 ):
•
Front clearance of 45 inches (114.3 cm) for both of the following:
– Cabling area of 7.5 inches (19.1 cm) between the front of the chassis and the inside of the
cabinet or front of the rack
–
Maintenance area of 38 inches (96.5 cm) between the front of the rack or cabinet and the next
rack, cabinet, or wall in the cold aisle (additional area might be needed for a larger mechanical
lift used to move the chassis)
• Rear clearance of 35 inches (88.9 cm) for both of the following:
–
Airflow area of 5 inches (12.7 cm) inside a cabinet (if used)
– Maintenance area of 30 inches (76.2 cm) of hot-aisle passageway behind the rack or cabinet
•
Side clearance recommendation depends on whether a cabinet or rack is used:
– For cabinet installations, use 11 inches (27.9 cm) between the chassis and inside of the cabinet.
–
For rack installations, use either 11” (27.9 cm) between the chassis and a wall or 6” (15.2 cm)
between racks.
4 Inside of cabinet (no side clearance required) 11 Airflow clearance required between the
chassis and inside of cabinet (if used)
5
Air intake from cold aisle for all modules and
power supplies
12
Chassis depth, which includes the fan tray
handles at the rear of the chassis
6
Air exhaust to hot aisle for all modules and
power supplies
13
Clearance required between the front of the
chassis and the inside of the cabinet (if used)
or edge of the cold aisle (if no cabinet) for the
cable management frames and the optional
front doors
7 No left side clearance required (no airflow on
left side) 14 Front service clearance required for installing
the chassis and replacing the modules