Before you remove a PSM from a router, ensure that you have taken the necessary precautions to prevent
electrostatic discharge (ESD) damage (see “Prevention of Electrostatic Discharge Damage” on page 191).
Ensure that you have the following parts and tools available to remove a PSM from a router:
•
ESD grounding strap
•
Antistatic bag or an antistatic mat
•
Phillips (+) screwdriver, number 2
CAUTION: Replace the PSM with a new PSM within 1 minute of removal to prevent
chassis overheating.
To remove an AC PSM from an ACX5400 router (see Figure 74 on page 120):
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other
end of the strap to the ESD point on the chassis.
NOTE: If only one PSM is installed in your router, you must power off the router before
removing the PSM. See “Power Off an ACX5400 Router” on page 137.
3. Disconnect power to the router. If the AC power source outlet has a power switch, set it to the off (O)
position. If the AC power source outlet does not have a power switch, gently pull out the male end of
the power cord connected to the power source outlet.
4. Remove the power source cable from the power supply faceplate. Remove the power cord from the
power supply faceplate by detaching the power cord retainer and gently pulling out the female end of
the power cord connected to the power supply faceplate.
5. Slide the locking lever toward the handle until you can no longer slide it.
6. Grasp the PSM handle and pull firmly to slide the PSM halfway out of the chassis.
7. Place one hand under the PSM to support it and slide it completely out of the chassis. Take care not
to touch power supply components, pins, leads, or solder connections.
8. Place the PSM in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
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