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Cisco Nexus 2000 Series Hardware Installation Guide
Chapter4 Installing a Cisco Nexus Fabric Extender
Preparing for Installation
Note If the switch is powered up with modules that have different airflow directions, you need to shut
down the switch before replacing the modules with the wrong airflow direction.
•Maintain ambient airflow throughout the data center to ensure normal operation.
•Consider the heat dissipation of all equipment when determining air-conditioning requirements.
When evaluating airflow requirements, take into consideration that hot air generated by equipment
at the bottom of the rack can be drawn in the intake ports of the equipment above.
•If you mount a chimney type of rack, avoid mounting it in a way that is contrary to the direction of
flow in the chimney, where the chimney overpowers the system fans.
Chassis Weight
When lifting the system, follow these guidelines:
•Disconnect all power and external cables before lifting the system.
•Have two people lift the system. The Cisco Nexus FEXs can weigh up to 18.5 pounds (8.4 kg).
•Ensure that your footing is solid and the weight of the system is evenly distributed between your
feet.
•Lift the system slowly, keeping your back straight. Lift with your legs, not with your back. Bend at
the knees, not at the waist.
Installation Guidelines
When installing the Cisco Nexus FEX, follow these guidelines:
•Plan your site configuration and prepare the site before installing the chassis. Appendix G, “Site
Preparation and Maintenance Records,” lists the recommended site planning tasks.
•Record the information listed in Appendix G, “Site Preparation and Maintenance Records,” as you
install and configure the device.
•Ensure that there is adequate space around the device to allow for servicing the device and for
adequate airflow (Appendix B, “Technical Specifications,” lists airflow requirements).
•Ensure that the air-conditioning meets the heat dissipation requirements listed in AppendixB,
“Technical Specifications,”
•Ensure that the chassis air intake will be located in a cold aisle and away from the exhaust of other
systems.
•Ensure that all of the fan tray and power supply modules have the same direction of airflow as
follows (the switch supports only one airflow direction for all modules):
–
Port-side intake airflow modules have black stripes.
–
Port-side exhaust airflow modules have no colored stripes.
Note If the switch is powered up with modules that have different airflow directions, you need to shut
down the switch before replacing the modules with the wrong airflow direction.