Cisco uBR10012 Manual page 15

Tip If you want to replace both AC PEMs without shutting down the router, repeat this procedure for each
AC PEM, one at a time. Do not use this procedure if both AC PEMs have failed; instead, use the
procedure in the
Remove the front cover by lifting it up slightly and then pulling it toward you.
Step 1
Turn off the AC PEM you are replacing by pushing down the power switch to the standby position
Step 2
(Figure
Figure 5
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Caution Do not power off both AC PEMs, or the system shuts down and all data traffic stops. Power off only the
AC PEM you are replacing.
Unplug the AC-input power cable from the power plug on the front panel of the AC PEM. For safety,
Step 3
also unplug the other end of the power cable from the AC-input power source.
For true redundant power protection, ensure that you are using a separate AC-input power source for
Tips
each AC PEM.
Use the screwdriver to loosen the captive screws on the AC PEM you are removing. Then pull the PEM
Step 4
from the chassis by using the handle on the faceplate
OL-24536-01
"Replacing Both AC PEMs" section on page
5).
Turning an AC PEM Off
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AC
SW ITC H
AC INP UT
200 -24 0V
13A 50/
60H z
AC INP UT
200 -24 0V
13A 50/
60H z
AC Power Entry Module for the Cisco uBR10012 Universal Broadband Router
AC
SW ITC H
A C IN P U
T
2 0 0 - 2 4 0
V
1 3 A 5 0 /6
0 H z
(Figure 6 on page
Removing and Replacing an AC PEM
19.
A C
S W IT C H
16). Set the AC PEM aside.
15