Datasheet

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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
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-675 Redundant Power System
Environmental Specifications
Operating Temperature
32 to 104°F (0 to 40°C)
Operating Humidity
10 to 85% non-condensing 5 to 95%, non-condensing
Non-Operating
Temperature
– 4° to 149°F (-20° to 65°C)
Operation Altitude
• 25°C @ 3 km/10 kft
• 40°C @ sea level
• 27.5°C @ 15 kft
• 35°C @ 3km/10 kft
• 40°C @ sea level
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)