Installing An Hvac/Hvdc Power Supply - Cisco Nexus 9336PQ Hardware Installation Manual

Installing an HVAC/HVDC Power Supply

To disconnect the power supply from its power cables, you must shut off the power from the power source
and then either disconnect a connector for the power cables or release each of three cables from the power
supply (requires a standard screw driver).
Step 1 Turn off the circuit breaker for the power source to only the power supply that you are replacing (be sure that this does
not turn off power to the other power supply that is powering the switch during this replacement process).
Be sure that the LEDs turn off on the power supply that you are removing.
Step 2 Remove the power cable from the power supply by doing the following:
• If you need to remove an orange power cable connector from a 48-V DC power supply, do the following:
1 Push the orange plastic button on the top of the connector block inward toward the power supply.
2 Pull the connector block out of the power supply.
• If you need to remove an Anderson Power Products Saf-D-Grid power cable connector from a high-voltage power
supply, press on the tab at the top of the Saf-D-Grid connector and pull the connector out of the power supply.
Step 3
Grasp the power supply handle while pressing the release latch towards the power supply handle.
Step 4 Pull the power supply out of the bay.
Step 5 If you cannot replace the power supply, fill the empty slot with a blank module (part number N2200-P-BLNK). Otherwise,
you are ready to install a power supply in the open slot.
Installing an HVAC/HVDC Power Supply
This topic is for installing the high-voltage AC/DC (HVAC/HVDC) power supply into a switch chassis.
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, power up the replacement power supply, and then remove the original power supply.
Before You Begin
• If you are using DC power for the replacement power supply, the circuit breaker for the DC power source
• The power source for the replacement power supply must be within reach of the power supply power
• If you are using n+n power redundancy, there must be a separate power source for each power supply
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must be turned off.
cable.
installed in the chassis. Otherwise, only one power source is required.
Replacing Modules