Cisco 8800 Series Hardware Installation Manual page 60

Power Module Overview
DC Power Supplies
There are two types of DC power modules supported on Cisco 8800 router series:
• PWR-4.4KW-DC-V3: The 4.4KW power supply that accepts a nominal input voltage of 48V 60A DC,
with an operational tolerance range of -40 to -72 VDC.
• PSU4.8KW-DC100: The 4.8KW power supply that accepts a nominal input voltage of 48V 100A DC,
with an operational tolerance range of -40 to -75 VDC.
Figure 41: PSU4.8KW-DC100
The PSU4.8KW-DC100 power module can also be configured to accept voltage of 48V 60A. By default, the
power module accepts 100A. To change the power mode to 60A, a toggle switch is provided in the power
tray. The toggle switch is located in the left-hand side on the power tray.
Note All PSU4.8KW-DC100 power modules in the chassis should be operated in same mode, either 60A or 100A
mode.
Figure 42: Power Mode Toggle Switch on the Power Tray
Hardware Installation Guide for Cisco 8800 Series Routers
54
Powering on the Router