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Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
OL-27644-01
Chapter 6 Installing and Upgrading Internal Modules and FRUs
Replacing Power Supplies and Redundant Power Supplies
Figure 6-23 Cisco ISR 4451-X Flash Token Memory Stick
Note You can insert or remove the memory stick whether the router is powered on or not.
This completes the USB Flash memory installation procedure.
Replacing Power Supplies and Redundant Power Supplies
The Cisco ISR 4451-Xs have replaceable power supply modules and some have an optional external
redundant power supply (RPS). All of the internal power supplies for the Cisco ISR 4451-Xs are
modular and do not have internal cabling. These modular power supplies can be removed or installed
using only a screwdriver.
• Replacing the Cisco ISR 4451-X Power Supply, page 6-31
• Replacing the Power Supply on the Cisco ISR 4451-Xs, page 6-33
• Inserting PoE Supply in an Ethernet Switch Network Module, page 6-33
• Cisco ISR 4451-X Power and RPS Error Messages, page 6-34
Replacing the Cisco ISR 4451-X Power Supply
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement
1029
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
01
DISK
BF
USB
HD
MIN
ACO
MAJ
STBY
ACTV
STAT
ASR1000-RP1
PWR
CRIT
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