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Removing an AC rectifier or DC PEM
Each module weighs about 19 lb (8.6 kg). Because of the weight of the module and the elevated position of
Caution
the power shelf, you should use two hands when handling the module. It is safer to use two people and a ladder
to install or remove the module rather than a single person.
Step 6
Seat the module in the power shelf backplane by pivoting the ejector lever to hook the slot on the floor of the power shelf
and then pushing the ejector lever until it is flush with the module faceplate. You hear a click when the ejector lever locks
into place.
Step 7
Push the power tab at the bottom front of the AC rectifier or DC PEM to the ON position.
What to do next
After performing this task, re-install the upper grille on the front (PLIM) side of the chassis.
Removing an AC rectifier or DC PEM
This section describes how to remove a DC PEM or AC rectifier from the Cisco CRS 16-slot LCC.
Although differences exist among the DC PEMs and AC rectifiers (AC Wye, AC Delta, and DC), they are
removed in the same manner.
Prerequisites
Before performing this task, remove the upper grille on the front (PLIM) side of the chassis
Required Tools and Equipment
You need the following tool to perform this task:
• ESD-preventive wrist strap
Steps
To remove an AC rectifier or DC PEM, perform the following steps:
SUMMARY STEPS
1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection
sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
2. While facing the front (PLIM) side of the chassis, pull the power tab on the bottom front of the module
out to the OFF position.
3. Press the ejector lever release button at the top of the module to release the ejector lever.
4. Pivot the ejector lever away from the module faceplate to eject the module from the power shelf backplane
connector.
5. Grasp the module handle and pull the module halfway from the bay. Be sure not to pull the module by
the ejector lever but rather by the handle only.
6. Be sure to support the module while you slide the module completely from the bay, then set the module
carefully aside.
Installing and Removing Power Components
30
Figure 15: AC Rectifier
shows an AC rectifier for reference.
Installing and Removing Power Components
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