Cisco Systems ISR4451XK9 manual Replacing the Power Supply on the Cisco ISR 4451-Xs

Chapter 6 Installing and Upgrading Internal Modules and FRUs

Replacing Power Supplies and Redundant Power Supplies

Replacing the Power Supply on the Cisco ISR 4451-Xs

Caution Care should be taken while removing the power supplies and power inverter, especially in boost mode of operation. If the total power consumption is higher than can be supported by one PSU alone, and in this condition, if a PSU is removed, the hardware can be damaged. This may result in the system being unstable or unusable.

Similarly if there is only one PoE converter and it is providing PoE power to an SM, in this condition if the PoE inverter is removed, the hardware may be damage and may result in the system being unstable or unusable.

Step 1 Read the “Safety Warnings” section on page 6-2section and disconnect the power supply before you perform any module replacement.

Step 2 Pull on the quick-release catch on the side to leverage the power supply from its connector, and then slide the power supply module out of the chassis.

Step 3 Insert the replacement power supply module.

Figure 6-25 Cisco ISR 4451-X Power Supply Units

.

	1			2	3
		Cisco 4400 Series
		PSU1	PSU2	INT FLASH	TEMP PWR
				POE
		POE1	POE2	BOOST VM	FAN STAT
					285695
5				4
1	Router fan tray	2 LEDs
3	Router On/Off switch	4 AC power supply unit (PSU) 2
5	AC power supply unit 1

Inserting PoE Supply in an Ethernet Switch Network Module

To insert a PoE PSU, you must first remove the fan tray. For instructions on how to remove the fan tray, see “Replacing the Cisco ISR 4451-X Fan Tray” section on page 6-34

The PoE power supply for Ethernet Switch Network Modules supports online insertion feature. The PoE power supply does not support online removal.

	Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
OL-27644-01		6-33