Chapter 6 Maintaining the Router
Removing and Replacing a DC PDU
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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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Caution
The system must be powered off to remove and replace the PDU. Notify the
network administrator and other appropriate personnel that all routing traffic will
stop while the replacement takes place.
Step 1
Power off both power supplies by setting their power switches to the Off (0)
position (see
Figure 6-16
).
Step 2
Power off the circuit breakers assigned to the power supplies.
Warning
To ensure that power remains off while you are performing this procedure, tape
the circuit breaker switches in the Off (0) position.