Remove and replace the power supplies

Updated: July 25, 2025

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Details the process for removing and replacing device power supplies, offering a conceptual overview of proper handling and steps for safe power component swaps.

Note

If a PSU which is failed is removed, a PSU-blank must be installed in the slot until a new PSU is installed.

Note

The Cisco 8400 Series Secure Routers support dual hot-swap PSUs.

Number	Description
1	Latch

Figure 2. Correct orientation of the power supply unit

Note

When installing a PSU, ensure the orientation is correct.

Latch and power input on right side.

Handle on bottom left.

Power markings are oriented such that they are readable when viewed straight on.

Number	Description
1	PSU Slot 1
2	PSU
3	PSU Slot 0

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