Cisco Nexus 9348GC-FXP Hardware Installation Manual page 23

Installing the Switch Chassis
port-side exhaust airflow and you must position the module side of the switch in a cold aisle. If there is
burgundy coloring on the fan modules, the switch is configured for port-side intake airflow and you must
position the port side of the switch in a cold aisle.
• Ensure that the chassis can be adequately grounded. If the switch is not mounted in a grounded rack, we
recommend connecting the system ground on the chassis directly to an earth ground.
• Ensure that the site power meets the power requirements for the switch. If available, you can use an
uninterruptible power supply (UPS) to protect against power failures.
• Ensure that circuits are sized according to local and national codes. Typically, this often requires one or
both of the following:
Caution Avoid UPS types that use ferroresonant technology. These UPS types can become
unstable with the switch, which can have substantial current draw fluctuations
because of fluctuating data traffic patterns.
• AC power supplies typically require at least a 15-A or 20-A AC circuit, 100 to 240 VAC, and a
frequency of 50 to 60 Hz.
Caution 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.
Note
For AC input application, please refer to the statement below:
Warning
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 20A (North
America), 16A (Europe), and 13A (UK).
Note For DC input application, please refer to the statement below:
Warning 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 40A for
the regular DC power supplies (rated 48-60VDC) and 10A for the HVDC power
supplies.
Cisco Nexus 9348GC-FXP ACI Mode Hardware Installation Guide
Installation Guidelines
13