Replacing A Dc Power Supply - Cisco Nexus 93180YC-FX Hardware Installation Manual

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Hardware installation (74 pages)

Table Of Contents

Table of Contents

Replacing Components

• There must be an earth ground connection to the chassis in which you are installing the replacement

Step 1

Remove an HVAC/HVDC power supply as follows:

a) Turn off the circuit breaker for the power feed to the power supply that you are replacing.

Be sure that the LEDs turn off on the power supply that you are removing.

b) Remove the power cable from the power supply by pressing the tab on the top of the Anderson Power SAF-D-Grid

connector and pull the cable and connector out of the power supply.

c) Grasp the power supply handle while pressing the release latch towards the power supply handle.

d) Place your other hand under the power supply to support it while you slide it out of the chassis.

Do not touch the electrical connections on the back side of the module and prevent anything else from

Caution

coming into contact with and damaging the connectors.

Step 2

Install the replacement power supply as follows:

a) Holding the replacement power supply with one hand underneath the module and the other hand holding the handle,

turn the power supply so that its release latch is on the right side and align the back end of the power supply (the end

with the electrical connections) to the open power supply slot before carefully sliding the power supply all the way

into the slot until it clicks into place.

If the power supply does not fit into the open slot, turn the module over before sliding it carefully into the

Note

open slot.

b) Test the installation by trying to pull the power supply out of the slot without using the release latch.

If the power supply does not move out of place, it is secured in the slot. If the power supply moves, carefully press

it all the way into the slot until it clicks in place.

c) Attach the Saf-D-Grid end of the power cable to the electrical outlet on the front of the power supply.

d) Make sure that the other end of the power cable is attached to the appropriate power source for the power supply.

• For an HVAC power source, plug the other end of the power cable into the power source.

• For a HVDC power source, verify that the circuit breaker is turned off and then connect each of the three cable

connectors to the appropriate DC and grounding terminals on the power source. If there is a cover plate for the

DC terminals, install the plate to prevent accidental contact with the terminals.

e) If using an HVDC power source, turn on the circuit breaker for the power source.

Verify that the power supply is operational by making sure that the power supply

on what the power supply LEDs indicate, see