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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Chapter 7 Maintaining the Router
Upgrading the AC-Input Power Shelf
•
OC (2500 W PEM only) (steady, or flashing yellow after 10
seconds)—Indicates the output current of the power supply exceeded its limit
and an overload or short circuit has occurred.
Note
If the OC indicator is on or flashing, the fault indicator also goes on.
–
Remove and then apply power to the power supply by disconnecting its
power cord.
–
If the indicator remains on, try reseating the power supply.
–
If the indicator remains on, replace the power supply.
Upgrading the AC-Input Power Shelf
Use the following procedure to upgrade your router from the standard, 1-level AC
power shelf to an optional, 2-level AC power shelf.
Note
A router with an optional, 2-level power shelf is 77.5 inches (196.85 cm) in height
and does not fit into a standard 7-foot rack.
Step 1
Remove the standard one-level power shelf following the procedures in
“Removing and Replacing the Standard AC-Input Power Shelf” section on
page 7-44
through
Step 4
.
Step 2
Install the optional, 2-level power shelf following the procedures in
“Removing
and Replacing the Optional 2-Level AC-Input Power Shelf” section on page 7-51
beginning with
Step 6
.
Step 3
Replace the old cover with the new cover you received in the upgrade kit.
a.
Hold the front cover by its outside edges and align the four ball studs on the
back of the cover with the sockets on the front of the chassis.
b.
Push in the front cover until all four ball studs snap into their sockets and the
front cover is flush against the front of the chassis.