Replace a Power Supply

5420 Series switches support the following power supplies:

The 150 W AC power supply (part numbers XN-ACPWR-150W and XN-ACPWR-150W-FB) provide front-to-back airflow and are compatible with 5420F-24T-4XE, 5420F-24S-4XE, 5420F-48T-4XE, 5420M-24T-4YE, and 5420M-48T-4YE switch models.
Caution
A 150 W AC power supply cannot be installed and used in a switch that supports PoE.
The 600W AC PoE power supply (part numbers XN-ACPWR-600W and XN-ACPWR-600W-FB) provide front-to-back airflow and are compatible with 5420F-24P-4XE and 5420F-8W-16P-4XE switches.
The 920 W AC PoE power supply (part number XN-ACPWR-920W) provides front-to-back airflow and is compatible with 5420F-48P-4XE, 5420F-48P-4XL, 5420M-24W-4YE, 5420M-48W-4YE, and 5420M-16MW-32P-4YE switches.
The 1200 W AC PoE power supply (part number XN-ACPWR-1200W) provides front-to-back airflow and is compatible with 5420F-16W-32P-4XE and 5420F-16MW-32P-4XE switches. The 1200 W AC PoE power supply (part number XN-ACPWR-1200W-FB) provides front-to-back airflow and is compatible with 5420F-48P-4XE, 5420F-48P-4XL, 5420F-16W-32P-4XE, 5420F-16MW-32P-4XE, 5420M-24W-4YE, , 5420M-48W-4YE, and 5420M-16MW-32P-4YE switches.
The 2000 W AC PoE power supplies (part numbers XN-ACPWR-2000W and XN-ACPWR-2000W-FB-A) provide front-to-back airflow and are compatible with 5420M-48W-4YE and 5420M-16MW-32P-4YE switches.

Caution

The 600 W, 920 W, 1200 W, and 2000 W AC power supplies that support PoE cannot be installed and used in a switch that does not support PoE.

Note

The switch operating system prevents PoE power contribution from a power supply that is not listed for use with that particular switch model.

Pre-Installation Requirements

You need the following tools and materials to replace a power supply:

Caution

Disconnect the AC power cord from the wall outlet and from the power supply before removing an AC power supply.

Use the following instructions to remove a power supply.

Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate ground point on the rack.
Caution
Power supplies can become very hot during operation. Wear thermal protective gloves when you remove a power supply from an operating switch.
Note the orientation and the airflow direction of the installed power supply, and the location of the latching tab on the power supply.
Push the latching tab toward the power supply handle and pull outward on the handle to disengage the power supply internal connectors.
Remove a Power Supply
Note
If you are not installing a replacement power supply, install a cover over the unoccupied power supply bay. Unoccupied bays must always be covered to maintain proper system ventilation and EMI levels.

Use the following instructions to replace or install a power supply.

Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate ground point on the rack.
If necessary, remove a blank panel from the back of the switch.
Ensure that the orientation of the power supply is correct, and that the new power supply's airflow direction (front-to-back or back-to-front) is compatible with the installed fan modules and any other installed power supplies.
Carefully slide the power supply all the way into the power supply slot.
Install a Power Supply
Push the power supply in until the latch snaps into place.
Do not slam the power supply into the switch.

Note

Be sure to install a cover over any unoccupied power supply slots. Unoccupied power supply slots must always be covered to maintain proper system ventilation and EMI levels.

To install or replace a second power supply repeat this procedure.