NOTE: After powering off a PSM, wait at least 60 seconds before turning it back on.
To remove a DC PSM (see Figure 197 on page 404 and Figure 198 on page 404):
NOTE: The minimum number of DC PSMs change, based on the configuration.
1. With one PSM installed and operational, remove any additional PSM by turning the power switch to
the off (O) position.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. Loosen the two captive screws on the PSM faceplate. Apply between 10 lb-in. (1.13 Nm) to 12 lb-in.
(1.35 Nm) of torque to each screw. Do not overtighten the screws.
4. While grasping the handle on the PSM faceplate with one hand, use your other hand to guide the PSM
away from the chassis.
5. Pull the PSM straight out of the chassis.
WARNING: To avoid damage, do not touch the power connectors in back of
the PSM.
6. Place the PSM module into an antistatic bag.
NOTE: Each PSM slot not occupied by a DC PSM must be covered by a PSM blank panel.
403
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