Removing A 48V Dc Power Supply; Installing A 48 V Dc Power Supply - Cisco Nexus 9396PX Hardware Installation Manual

Removing a 48V DC Power Supply

Removing a 48V DC Power Supply
If the switch has two power supplies, you can replace one power supply while the other one provides power
to the switch. If you have only one power supply in the switch, install the replacement power supply in the
open slot before removing the original power supply.
Step 1 Turn off the circuit breaker for the power source to the power supply that you are replacing.
Be sure that the LEDs on the power supply turn off.
Step 2 Remove the power cable connector block from the power supply by doing the following:
• Push the orange plastic button on the top of the connector block inward toward the power supply.
• Pull the connector block out of the power supply.
Step 3
Grasp the power supply handle while pinching the release latch towards the handle.
Step 4 Pull the power supply out of the bay.

Installing a 48 V DC Power Supply

Depending on your power redundancy requirement, be sure there are one or two power sources close to the
rack:
• For no power redundancy, use one power source.
• For power supply redundancy, use one or two power sources.
• For grid redundancy, use two power sources.
If the switch has two power supplies, you can replace one power supply while the other one provides power
to the switch. If you have only one power supply in the switch, install the replacement power supply in the
open slot before removing the original power supply.
Before You Begin
The circuit breaker for the DC power source for the power supply must be turned off.
Step 1 Grasp the power supply handle and align the back of the new power supply to the empty bay.
Step 2
Push the power supply into the bay until the release lever locks.
Step 3 If the DC power cables and a grounding cable are already connected to an electrical connector block, insert the block
into the power receptacle on the power supply.
If the electrical cables have not been connected to the electrical connector block, wire them as described in
V DC Electrical Connector Block, on page
Cisco Nexus 9396PX NX-OS-Mode Switch Hardware Installation Guide
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41.
Replacing Modules
Wiring a 48