Cisco XR 12410 Installation Manual page 194

Removing and Replacing AC and DC Power Subsystem Components
Disconnect the DC power cables from their terminals in the following order and
Step 5
note the color of each cable
a.
b.
c.
d.
e.
To prevent injury and damage to the equipment, always remove the source DC
Warning
power cables and ground from the power shelf terminals in the following order:
(1) negative (–), (2) positive (+), (3) ground.
Cisco XR 12410 Router Installation Guide
5-30
Negative cables first.
Positive cables next.
Ground cable last.
Repeat steps a, b, and c for the other PDU.
Go to Step 6.
(Figure 5-18):
Chapter 5 Maintaining the Router
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