Jumper power cords are available for use in a cabinet.
Note
• 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.
Warning
• 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 3000 Series switches. These
switches can have substantial current draw fluctuations because of fluctuating
data traffic patterns.
Caution
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.
Caution
Statement 1005—Circuit Breaker
This product relies on the building's installation for short-circuit (overcurrent)
protection. Ensure that the protective devices is rated not greater than (see the
table below).
Warning
Cisco Nexus 3500 Hardware Installation Guide
7
Installing the Chassis
Preparing to Install the Chassis
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