5-34
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-03
Chapter 5 Installing and Upgrading Internal Modules and FRUs
Replacing Power Supplies and Redundant Power Supplies
Removing the 2911 DC Power Supply
Perform the following steps to remove the 2911 DC power supply:
Step 1
Read the “Safety Warnings” section on page 5-2 section and disconnect the power supply before you
perform any module removal or installation.
Step 2
Remove the power supply module from the system by loosening the two captive screws using a number
1 Phillips head screwdriver (See
Figure 5-26) and pulling the power supply out slowly from the I/O side
(See Figure 5-27) of the chassis.
Step 3
Slide the power supply module out of the chassis.
Step 4
If you are not immediately replacing the power supply, install the blank cover over the empty supply slot.
See the
“Installing the Cisco 2911 Router Power Supply Blank” section on page 5-34.
Installing the Cisco 2911 Router Power Supply Blank
For safety reasons, the power supply blank cap and panel must be installed immediately if the power
supply is removed from the system and the system stays or will be energized before the power supply is
replaced.
Note
This procedure applies to customers who will maintain or supply power to the system with the RPS
module.
Step 1
Read the “Safety Warnings” section on page 5-2 section and disconnect the power supply before you
perform any module replacement.
Step 2
If the power supply is present, make sure it is turned off and the power cord is detached.
Step 3
Remove it from the system by loosening the two captive screws using a number 1 Phillips head
screwdriver and pulling the power supply out slowly from the I/O side of the chassis. See
Figure 5-27.
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