Replacing The Cisco 2901 Router Power Supply - Cisco WS-C2950-24 Installation Manual

Replacing Power Supplies and Redundant Power Supplies

Replacing the Cisco 2901 Router Power Supply

Blank faceplates and cover panels serve three important functions: they prevent exposure to
Warning
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement
1029
To replace the power supply in a Cisco 2901 router, perform the following steps. See
locations of connectors and other components within the Cisco 2901 router.
Read the
Step 1
perform any module replacement.
Disconnect the router from the external AC power supply.
Step 2
Remove the cover from the chassis. See the
Step 3
page
Disconnect the power supply cable from the main power supply connector. See
Step 4
Cisco 2900 Series and 3900 Series Hardware Installation Guide
5-30
"Safety Warnings" section on page 5-2
5-4.
Chapter 5 Installing and Upgrading Internal Modules and FRUs
section and disconnect the power supply before you
"Removing and Replacing the Chassis Cover" section on
Figure 5-3 for the
Figure 5-24.
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