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Chapter 7 Maintaining the Router
Removing and Replacing the DC-Input Power Shelf
7-68
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Removing and Replacing the DC-Input Power Shelf
Use the following procedure to remove and replace the DC-input power shelf.
Caution
To remove and replace the power shelf, the system must be powered off. Notify
the network administrator and other appropriate personnel that all routing traffic
stops while the upgrade takes place.
Caution
If you are upgrading to a new power shelf, you cannot use old power supplies. You
must upgrade to newer, 2400 W PEMs (see
Table 7-1 on page 7-30
).
Step 1
Remove all of the DC PEMs as described in the
“Removing and Replacing a DC
PEM” procedure on page 60
through
Step 4
.
Step 2
Remove the power cable cover by loosening its retaining screw (
Figure 7-40
).
Figure 7-40 Removing the Source DC Power Cable Cover
27219
Ground
–
+
Cover standoff
Cover with slotted screw hole;
fastens to standoff in middle
of cable connection area.