Removing And Replacing An Ac Pem - Cisco uBR10012 Manual

Removing and Replacing an AC PEM

This section contains information on removing and replacing AC PEM modules in the Cisco uBR10012
chassis.
Tip The AC PEM is operating correctly when its Power LED is on (green). When the Fault LED is on
(yellow), the AC PEM is receiving AC-input power but is not providing power to the system. Verify that
the AC PEM is fully inserted into the power bay and that its captive screws have been tightened. Then
flip the power switch on the AC PEM to the standby position, wait several seconds, and then back to the
ON position. If the Fault LED does not go off and the Power LED does not come on, replace the AC
PEM.
Tools and Parts Required
To remove and replace an individual power module, you need the following tools and parts:
•
•
•
Unpacking and Preparing the AC PEM
To unpack the AC PEM, complete the following steps:
Open the shipping carton by cutting the packing tape along the flaps on the top of the box.
Step 1
Remove the PEM from the packaging and place it on an anti-static surface.
Step 2
Keep the packaging and the carton so that you can use them to return the old unit being replaced to the
Step 3
factory. See the
more information.
Verifying That the DC Power Connectors Are Not Connected
Each of two power bays in the Cisco uBR10012 chassis is above a DC terminal block that is used to
provide power only when you are using the DC PEM modules. Do not use these DC terminal blocks
when you are using the AC PEMs.
If you have previously used this Cisco uBR10012 router with DC PEMs, first verify that these DC
terminal blocks are not currently connected before proceeding with the installation or replacement of the
AC PEMs.
that might be connected to the blocks.
OL-24536-01
Replacement AC PEM (UBR10-PWR-AC=)
ESD-preventive wrist strap
Flat-head screwdriver
"Obtaining Documentation and Submitting a Service Request" section on page 26
Figure 4 shows the location of the two DC terminal blocks and how to recognize the wires
AC Power Entry Module for the Cisco uBR10012 Universal Broadband Router
Removing and Replacing an AC PEM
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