Installing A Dc Power Supply Unit During Operations - Cisco Nexus 7000 Series Hardware Installation And Reference Manual

Replacing a DC 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
1
2
3
4
5
Either replace the power supply unit or cover the empty power supply bay as follows:
Step 10
•
•

Installing a DC Power Supply Unit During Operations

After you remove a DC power supply, you can replace it with another AC or DC power supply or replace
it with a blank plate until another power supply is available. To install an AC power supply unit, see the
"Installing an AC Power Supply Unit During Operations" section on page
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
Warning
when servicing. Statement 1034
To install a DC power supply unit while a Cisco Nexus 7000 Series switch is operating, follow these
steps:
Step 1 Unpack the replacement DC power supply unit and place it on an antistatic mat. Also, unpack the power
cables.
Step 2 Ensure that the power switch on the replacement DC power supply unit is in the standby (STBY)
position.
Ensure that the DC power source for the new power supply unit is turned off at the circuit breaker.
Step 3
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
9-10
Coil the power cables and place them on the
bottom of the box.
Place the trifold cover over the coiled cables.
Put the power supply unit in its ESD bag and
hold the filler box outside the bag in the notched
portion of the power supply unit.
Place the nonexpanding end pad over the back
end of the power supply unit and filler box.
Pull the two sides of the expandable end pad
apart, fit the end pad over the front end of the
power supply unit, and press the two sides
together snuggly over the front end of the power
supply unit.
If you are ready to replace the power supply unit, see the
Operations" section on page
If the power supply bay is to remain empty, install a blank power supply filler plate (Cisco part
number 800-28658-01) over the opening, and secure it with its captive screws.
6
Place the padded power supply unit inside the
box and on top of the trifold.
7
Fold the narrow flaps over the power supply
unit pads.
8 Fold the wide flaps over the power supply
unit.
9 Tape the wide flaps together and to the box
with packing tape.
9-10.
Chapter 9 Replacement Procedures
"Installing a DC Power Supply Unit During
9-6.
OL-23069-06