Airflow Requirements - Cisco Nexus 9364D-GX2A Hardware Installation Manual

Airflow Requirements

Note
Note
To minimize the possibility of circuit failure, make sure that each power-source circuit that is used by the
switch is dedicated to the switch.
Note
Warning
Note
Warning
Note
Note
Airflow Requirements
The switch is positioned with its ports in either the front or the rear of the rack depending on your cabling
and maintenance requirements. You must have fan and power supply modules that move the coolant air from
the cold aisle to the hot aisle in one of the following ways:
Cisco Nexus 9364D-GX2A ACI-Mode Switch Hardware Installation Guide
8
For n+1 redundancy, you can use one or two power sources for the two power supplies. For n+n redundancy,
you must use two power sources and connect each power supply to a separate power source.
Some of the power supply modules have rating capabilities that exceed the switch requirements. When
calculating your power requirements, use the switch requirements to determine the amount of power that is
required for the power supplies.
For AC input application, please refer to the following statement:
Statement 1005 Circuit Breaker when using AC power supplies
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective devices are rated not greater than 20A (North America), 16A (Europe), and 13A (UK).
For DC input application, please refer to the following statement:
Statement 1033
Connect the unit only to DC power source that complies with the Safety Extra-Low Voltage (SELV)
requirements in IEC 60950 based safety standards.
We recommend 8-AWG wire for DC installations in the U.S.
For the power cables to use with the power supplies, see Power Cable Specifications, on page
Preparing the Site
43.