Cisco 4000 Series Hardware Installation Manual page 168

Remove and Replace Cisco 4000 Series ISRs Power Supplies
Figure 5-34
.
1
3
5
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
5-44
Cisco 4451-X ISR Power Supply Units
4
Router fan tray (behind the bezel)
Router On/Off switch
AC power supply unit PSU1
Chapter 5 Install and Upgrade Internal Modules and FRUs
1
2 LEDs
4 AC power supply unit PSU0
2 3
Cisco 4400 Series
PSU1 PSU2 INT FLASH TEMP PWR
POE
POE1 POE2 BOOST
VM FAN STAT
5
OL-32185-02