Filter
Top Products
Chapter 6 Maintaining the Router
Removing and Replacing a DC PEM
6-32
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Use the following procedure to remove and replace a DC power supply.
Caution You cannot mix power supply types within the chassis. If you are replacing a 1400
W power supply with a 1900 W power supply, you must replace both power
supplies, the DC PDU, and the blower module if you are required to meet NEBS
extended temperature range requirements (see the
“Power Supply and PDU
Compatibility” section on page 6-14 for additional information). You must shut
down the router to perform the upgrade. Notify the system administrator and other
appropriate personnel that all routing traffic will stop while the upgrade takes
place.
Step 1 Set the power switch to the Off position.
Step 2 Power off the circuit breaker assigned to the power supply.
Warning
To ensure that power remains off while you are performing this procedure, tape
the circuit breaker switch in the Off (0) position.