Remove And Replace Cisco 4000 Series Isrs Power Supplies - Cisco 4451 ISR Hardware Installation Manual

Remove and Replace Cisco 4000 Series ISRs Power Supplies

Figure 6-28
Note
Remove and Replace Cisco 4000 Series ISRs Power Supplies
Cisco 4400 and 4300 Series ISRs have replaceable power supply modules. These modular power
supplies can be removed or installed using only a screwdriver.
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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
This unit might have more than one power supply connection. All connections must be removed
Warning
to de-energize the unit. Statement 1028
Care should be taken while removing the power supplies and power inverters (especially in boost
Warning
mode of operation). If the total power consumption is higher than can be supported by one power
supply alone and in this condition a power supply is removed, the hardware can be damaged. This
may then result in the system being unstable or unusable.
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
6-40
Router Flash Token Memory Stick
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You can insert or remove the memory stick whether the router is powered on or off.
AC Power Supplies, page 6-41
Overview of DC Power Supply, page 6-44
Replace the Power Supply Module from the Cisco 4331 Router, page 6-49
PoE Converter Power Supply Unit, page 6-54
Chapter 6 Install and Upgrade Internal Modules and FRUs
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