Cisco Nexus C9316D-GX, Руководство по установке оборудования

Страница: 21 / 52

• Ensure that there is adequate clearance space around the switch to allow for servicing the switch and for
adequate airflow.
• 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.
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.
Caution
• Ensure that circuits are sized according to local and national codes. Typically, this often requires one or
both of the following:
• 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.
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
For AC input application, please refer to the statement below:
Note
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).
Warning
For DC input application, please refer to the statement below:
Note
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.
Warning
Cisco Nexus C9316D-GX ACI-Mode Switch Hardware Installation Guide
13
Installing the Chassis
Installation Guidelines