Datasheet

Data Sheet
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Cisco 2800 Series Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851
Power Requirements
AC Input Voltage 100 to 240 VAC,
autoranging
AC Input Frequency 47-63 Hz
AC Input Current 2A (110V) 1A (230V) 3A (110V) 2A (230V)
AC Input Surge Current 50A maximum, one cycle
(-48V power included)
AC-IP Maximum In-Line
Power Distribution
120W 160W 240W 360W
AC-IP Input Current 4A (110V) 2A (230V) 8A (110V) 4A (230V)
AC-IP Input Surge Current 50A maximum, one cycle
(-48V power included)
DC Input Voltage No DC Power Option
available
24 to 60 VDC, autoranging
positive or negative
DC Input Current
●
No DC Power Option
available
●
8A (24V)
●
3A (60V)
●
Startup current 50A<10
ms
●
12A (24V)
●
5A (60V)
●
Startup current
50A<10 ms
Typical Power Dissipation
(No Modules)
42W (143 BTU/hr) 32W (109 BTU/hr) 54W (184 BTU/hr) 58W (197 BTU/hr)
Power Dissipation-AC
without IP Phone Support
150W (511 BTU/hr) 170W (580 BTU/hr) 280W (955 BTU/hr) 280W (955 BTU/hr)
Power Dissipation-AC with
IP Phone Support-System
Only
150W (511 BTU/hr) 210W (717 BTU/hr) 310W (1058 BTU/hr) 370W (1262 BTU/hr)
Power Dissipation-AC
with IP Phone Support-
IP Phones
180W (612 BTU/hr) 160W (546 BTU/hr) 240W (819 BTU/hr) 360W (1128 BTU/hr)
Power Dissipation-DC Not applicable 180W (614 BTU/hr) 300W (1024 BTU/hr) 300W (1024 BTU/hr)
RPS No External only, connector for
RPS provided by default
Recommended RPS Unit No RPS option Cisco RPS-2300
Redundant Power System
Environmental Specifications
Operating Temperature 32° to 104°F (0° to 40°C)
Non-Operating
Temperature
-4° to 149°F (-20° to 65°C) -40° to 158°F (-40° to
70°C)
Maximum Operating
Temperature at Altitude
●
40°C @ sea level
●
31°C @ 6,000 ft
(1800 m)
●
25°C @ 10,000 ft
(3000 m)
Note: Derate 1.5°C per
1000 ft
●
40°C @ sea level
●
40°C @ 6,000 ft
(1800 m)
●
30°C @ 13,000 ft
(4000 m)
●
27.2°C @ 15,000 ft
(4600 m)
Note: Derate 1.4°C per
1,000 ft above 6,000 ft
Operating Humidity 10 to 85% RH non-
condensing
5 to 85%RH, non-
condensing
Dimensions (H x W x D)
●
1.72 x 17.5 x 16.5 in.
●
(43.7 x 445 x 419 mm)
●
1.75 x 17.25 x 16.4 in.
●
(44.5 x 438.2 x 416.6
mm)
●
3.5 x 17.25 x 16.4 in.
●
(88.9 x 438.2 x 416.6
mm)
Rack Height 1 rack unit (1RU) 2RU
Weight (Fully Configured) 13.7 lb (6.2 kg) 14 lb (6.4 kg) 25 lb (11.4 kg)