Replacing A Power Filter Unit - Cisco ASR 5000 Series Installation Manual

Chapter 17

Replacing a Power Filter Unit

Up to two -48 VDC Power Filter Unit (PFU) assemblies can be installed in the ASR 5000 chassis. Two PFUs provide
load-balancing and redundancy. The PFUs are located in the lower-rear of the chassis.
This chapter provides instructions for replacing a PFU in the event of failure. It includes the following sections:

Determining that a PFU has Failed

Removing the Failed PFU

Installing the Replacement PFU

What to do with the Failed PFU
Caution:
two PFUs always remain installed for load-balancing and redundancy.
Caution:
to the components. Failure to do so could result in damage to sensitive electronic components and potentially void your
warranty.
Although a single PFU can provide power for a fully loaded chassis, it is strongly recommended that
During installation, maintenance, and/or removal, wear a grounding wrist strap to avoid ESD damage
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