Cisco XR 12410 - Manual (Page 202)

Chapter 5 Maintaining the Router
Removing and Replacing AC and DC Power Subsystem Components
5-30
Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
OL-17441-01
Step 5 Disconnect the DC power cables from their terminals in the following order and
note the color of each cable (
Figure 5-18 ):
a. Negative cables first.
b. Positive cables next.
c. Ground cable last.
d. Repeat steps a, b, and c for the other PDU.
e. Go to Step 6 .
Warning To prevent injury and damage to the equipment, always remove the source DC
power cables and ground from the power shelf terminals in the following order:
(1) negative (–), (2) positive (+), (3) ground.