Cisco XR 12410 - Manual (Page 184)

Chapter 5 Maintaining the Router
Removing and Replacing AC and DC Power Subsystem Components
5-12
Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
OL-17441-01
Removing and Replacing AC and DC Power
Subsystem Components
This section contains removal and replacement procedures for the AC and DC
power systems used with the Cisco XR 12410 router.The following tools and
equipment are required to remove and install power equipment:
• Number 1 Phillips screwdriver
• 3/16-inch flat-blade screwdriver
• An ESD-preventive wrist strap
Installation Guidelines
The Cisco XR 12410 router supports online insertion and removal (OIR). If you
are replacing a redundant power supply, you can remove and install the power
supply while the system remains powered on without causing an electrical hazard
or damage to the system. This feature enables you replace a power supply while
the
system maintains all routing information and ensures session preservation.
However, to maintain operational redundancy, proper cooling, and meet EMI
compliance standards, you must have both working power supplies installed.
When you remove a failed power supply with the router in operation, perform the
replacement as quickly as possible. Before you begin the removal and installation
procedure, make sure you have the tools and the replacement power supply ready.
Caution You cannot mix power supply types within the chassis. If you are
replacing a 2400 W power supply from an older system with a newer
2800 W power supply, you must replace both power supplies and the
PDUs. You must shut down the router to perform the upgrade. Be sure
to notify the appropriate personnel that all routing traffic stops while
the upgrade takes place.