Cisco Nexus 3000 Series Manual page 5

Installing the Chassis
• The installation site meets the following requirements as stated in Chapter 2:
Note
Caution
Caution
Caution
Warning
• You have the following equipment in addition to the switch and the kits shipped with the switch:
• Environmental requirements for temperature, humidity, altitude, and air particulates.
• Cabinet or rack is installed and meets the requirements for the switch.
Jumper power cords are available for use in a cabinet.
• The rack is positioned so that you can install the switch with its cold air intakes positioned in a cold
aisle.
If the fan and power supply modules are burgundy or red colored, you must install the chassis with
its port side in a cold aisle. If the modules are blue colored, you must be able install the chassis with
the fan modules in a cold aisle.
• Earth ground connection is close to the switch. You must be able to easily connect the switch directly
to an earth ground or indirectly through a grounded rack.
High leakage current. Earth connection essential before connecting to power
supply.
• Site power meets the switch requirements. If you are using n+n redundancy, you must have two
power sources within reach of the switch when it is installed in the cabinet or rack.
If available, you can use an uninterruptible power supply (UPS) to protect against power failures.
Avoid UPS types that use ferroresonant technology. These UPS types can become
unstable with systems such as the Cisco Nexus switches. These switches can have
substantial current draw fluctuations because of fluctuating data traffic patterns.
Ensure that circuits are sized according to local and national codes. For North America, the power
supply requires a 15-A or 20-A circuit.
To prevent loss of input power, ensure the total maximum loads on the circuits
supplying power to the switch are within the current ratings for the wiring and
breakers.
Statement 1076 Clearance Around the Ventilation Openings
To prevent airflow restriction, allow clearance around the ventilation openings
to be at least:
• There is adequate clearance around the rack to install the switch and to allow for unimpeded airflow.
Preparing to Install the Chassis
Installing the Chassis
5