Replacing a PSM
l Electrostatic Discharge Damage Prevention and Warning
l FTM-4
l Handling Modules
Replacing a PSM
Overview 424
Required Tools and Equipment 425
Replacing a PSM-DC 425
Replacing a PSM-DC4 427
Replacing a PSM-AC3 428
Replacing a PSM-AC4 or PSM-AC5 430
Upgrading a PSM-AC4 to a PSM-AC5 431
Replacing a PSM-AC6 433
Overview
The PSMs are hot swappable, which means you can remove and replace them while the
HD system is powered on and operating, provided that the system is using a redundant
power configuration.
l Redundant power configuration — You can replace only one PSM at a time. The
second PSM must remain connected to the AC or DC power source.
l Non-redundant power configuration — You must completely power off the system
when you remove and replace a PSM.
EQUIPMENT DAMAGE MAY RESULT IF YOU ATTEMPT TO
OPERATE THE SYSTEM WITH A DEFECTIVE PSM.
If you encounter any problems with a PSM, simply replace it with a
new one of the same type as soon as possible.
Ensure that you have the replacement PSM available and unpacked before you remove a
PSM from an active shelf. Always replace a PSM immediately to fully restore power
redundancy.
If a replacement PSM is unavailable, either leave the original PSM in the shelf, or remove
it and fill the empty slot with a slot cover until you have the replacement PSM(for
redundant power configurations only). When you install a slot cover, verify that the
remaining PSMs are installed in the correct slots for your redundant power configuration.
FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B 424
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