Replacement Procedures; Replacing An Ac Power Supply Unit During Operations; Required Tools; Removing An Ac Power Supply Unit During Operations - Cisco Nexus 7000 Series Hardware Installation And Reference Manual

Replacing an AC Power Supply Unit During Operations

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
Blank faceplates and cover panels serve three important functions: they prevent exposure to
Warning
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement
1029
If a replacement power supply unit is not available and you do not have a blank plate to cover the empty
Note
power supply bay, you should leave the original power supply in the bay until you have the replacement
unit.
This section describes how to replace an AC power supply unit and includes the following topics:
•
•

Required Tools

Before you replace an AC power supply unit, make sure that you have the following tools and equipment:
•
•
•
•
When you handle the Cisco Nexus 7000 Series components, you must follow ESD protocol at all times
Caution
to prevent ESD damage. This protocol includes but is not limited to wearing an ESD wrist strap that you
connect to the earth ground.

Removing an AC Power Supply Unit During Operations

Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
when servicing. Statement 1034
To replace an AC power supply unit while a Cisco Nexus 7000 Series switch is operating, follow these
steps:
Step 1 Make sure that the power supply units not being replaced have their power switches turned to ON.
Turn the power switch on the power supply that you are removing to standby (STBY).
Step 2
The Output LED turns off.
Unplug the power cords from the AC power source. If the power supply unit has only one AC power
Step 3
cable, unplug just that cable. Otherwise, unplug both AC power cables.
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
9-2
Removing an AC Power Supply Unit During Operations, page 9-2
Installing an AC Power Supply Unit During Operations, page 9-6
Number 1 Phillips screwdriver with torque capability
Shipping materials
Antistatic mat
Replacement AC power supply unit
Chapter 9

Replacement Procedures

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