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Cisco 2821 - Integrated Services Router Unified Communications Bundle Genel Bakış
Power
Table 4
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.
Table 4
Summary of Cisco 2800 Series Power Options
Router Model
Cisco 2801
AC input without IP phone power
output
AC input with IP phone power
output
Cisco 2811
AC input without IP phone power
output
AC input with IP phone power
output
DC input without IP phone power
output
Cisco 2821
AC input without IP phone power
output
AC input with IP phone power
output
DC input without IP phone power
output
Cisco 2851
AC input without IP phone power
output
AC input with IP phone power
output
DC input without IP phone power
output
Cisco 2811,
Backup power for AC- or
Cisco 2821, and
DC-powered routers:
Cisco 2851
Cisco Redundant Power System
(RPS-675)

LED Indicators

Table 5
in removable modules or interface cards.
OL-5783-01
summarizes the power options for Cisco 2800 series routers. Cisco 2801 routers are equipped
Power Option
and
Table 6
summarize the LED indicators that are located in the router bezel or chassis, but not
Input
100 - 240 VAC, 2 A
None
100 - 240 VAC, 5 A
–48 VDC, 120 W
100 - 240 VAC, 2 A
None
100 - 240 VAC, 4 A
–48 VDC, 160 W
24 - 60 VDC, 8 A
None
100 - 240 VAC, 3 A
None
100 - 240 VAC, 8 A
–48 VDC, 240 W
24 - 60 VDC, 12 A
None
100 - 240 VAC, 3 A
None
100 - 240 VAC, 8 A
–48 VDC, 360 W
24 - 60 VDC, 12 A
None
100 VAC, 10 A,
The Cisco RPS provides IP phone power
or 240 VAC, 6 A
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
Overview of Cisco 2800 Series Routers
Hardware Features
IP Phone Power Output
7