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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
Warning
Care should be taken while removing the power supplies and power inverters (especially in boost
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.
All of the power supply and RPS options have a similar modular form factor, with no cabling, for easy
removal and replacement. If an RPS is attached, the power supply may be hot-swapped.
Figure 6-24 Power Supply Unit
1. 450W/1000W power supply (1000W shown) 2. PSU Latch
3. Multiple power supply unit warning
message—appears when there are multiple
power inputs
4. Product series
5. LEDs
WARNING:
MULTIPLE POWER
INPUTS - REMOVE TO
DE-ENERGIZE
ADVERTISSEMENT:
POUR ÉJEINDRE L’UNITÉ,
DEBRANCHEZ
D’ALIMENTATION
À ENTRÉES
MULTIPLES
Cisco 4900 Series
PSU0
PSU1 GE
POE
POE0
POE1 BOOST ISC FAN STAT
FLASH
TEMP PWR
PSU0
PSU1 GE
POE
POE0
POE1 BOOST ISC FAN STAT
FLASH
TEMP PWR
100-240V- 5.1-2.5A
50/60Hz
WARNING:
MULTIPLE POWER
INPUTS - REMOVE TO
DE-ENERGIZE
ADVERTISSEMENT:
POUR ÉJEINDRE L’UNITÉ,
DEBRANCHEZ
D’ALIMENTATION
À ENTRÉES
MULTIPLES
100-240V- 5.1-2.5A
50/60Hz
WARNING:
MULTIPLE POWER
INPUTS - REMOVE TO
DE-ENERGIZE
ADVERTISSEMENT:
POUR ÉJEINDRE L’UNITÉ,
DEBRANCHEZ
D’ALIMENTATION
À ENTRÉES
MULTIPLES
POE
POE
4
1
3
2
5
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