7
Overview of Cisco 2800 Series Routers
OL-5783-01
Hardware Features
Power
Table 4 summarizes the power options for Cisco 2800 series routers. Cisco 2801 routers are equipped
for operation using AC power only. Cisco 2811, Cisco 2821, and Cisco 2851 routers can be equipped for
operation using either AC or DC input power by installation of the appropriate chassis power supply. IP
phone power is supported if the appropriate AC-input chassis power supply is installed.
LED Indicators
Table 5 and Table 6 summarize the LED indicators that are located in the router bezel or chassis, but not
in removable modules or interface cards.
Table 4 Summary of Cisco 2800 Series Power Options
Router Model Power Option Input IP Phone Power Output
Cisco 2801 AC input without IP phone power
output
100 - 240 VAC, 2 A None
AC input with IP phone power
output
100 - 240 VAC, 5 A –48 VDC, 120 W
Cisco 2811 AC input without IP phone power
output
100 - 240 VAC, 2 A None
AC input with IP phone power
output
100 - 240 VAC, 4 A –48 VDC, 160 W
DC input without IP phone power
output
24 - 60 VDC, 8 A None
Cisco 2821 AC input without IP phone power
output
100 - 240 VAC, 3 A None
AC input with IP phone power
output
100 - 240 VAC, 8 A –48 VDC, 240 W
DC input without IP phone power
output
24 - 60 VDC, 12 A None
Cisco 2851 AC input without IP phone power
output
100 - 240 VAC, 3 A None
AC input with IP phone power
output
100 - 240 VAC, 8 A –48 VDC, 360 W
DC input without IP phone power
output
24 - 60 VDC, 12 A None
Cisco 2811,
Cisco 2821, and
Cisco 2851
Backup power for AC- or
DC-powered routers:
Cisco Redundant Power System
(RPS-675)
100 VAC, 10 A,
or 240 VAC, 6 A
The Cisco RPS provides IP phone power
only if the chassis power supply supports
IP phone power.
With Cisco 2811: –48 VDC, 160 W
With Cisco 2821: –48 VDC, 240 W
With Cisco 2851: –48 VDC, 360 W
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