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.
◦
DC power supplies require the following:
◦ DC input voltage range of –48 to -60 VDC nominal (self-ranging, –40 to –72 VDC)
◦ DC line input current (steady state) of 23 A peak at –48 VDC
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
Unpacking and Installing the Switch
Before you install the switch, be sure to unpack and inspect the switch for damage or missing components.
If anything is missing or damaged, contact your customer service representative immediately.
Keep the shipping container in case the chassis requires shipping at a later time.Tip
Before You Begin
Before you unpack the switch and before you handle any switch components, be sure that you are wearing a
grounded electrostatic discharge (ESD) strap. To ground the strap, attach it directly to an earth ground or to
a grounded rack or grounded chassis (there must be a metal-to-metal connection to the earth ground).
Step 1
Compare the shipment to the equipment list provided by your customer service representative and verify that you have
received all items, including the following:
•
Accessory kit, which includes the following:
◦
Ground lug kit
◦
ESD wrist strap
•
Rack-mount kit
•
Cables with connectors
•
Any optional items ordered
Cisco Nexus 9372TX ACI-Mode Switch Hardware Installation Guide
3
Installing the Switch Chassis
Unpacking and Installing the Switch
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