Cisco XR 12416 Installation Manual page 35

Chapter 5 Maintaining the Router
Install the new DC PEM into the power shelf
Step 5
a.
b.
c.
To prevent damage to the power shelf backplane connector, do not use excessive
Caution
force when inserting the PEM into its power shelf bay.
d.
Because the PEM is powered redundantly by other PEMs in its power load zone,
Note
the fault indicator may go on. This can happen even if the circuit breaker for that
PEM is switched off, or if there is no DC source power to the PEM. When power
is supplied to the PEM and the circuit breaker is switched on, the fault indicator
should go off and the PWR OK indicator should light.
OL-17440-01
Slide the PEM halfway into the chassis.
Slowly push the power supply into the chassis until it mates with the
backplane connector at the back of the bay.
Position the bottom of the ejector lever in the slot on the bottom of the power
shelf and lift the ejector lever into place to seat the PEM to the backplane
connector.
Tighten the captive screw to secure the PEM in the power shelf.
Cisco XR 12416 and Cisco XR 12816 Router Chassis Installation Guide
Removing and Replacing a DC PEM
(Figure 5-25):
5-35