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Cisco 2800 Series Cisco 2801 Cisco 2811 Cisco 2821 Cisco 2851
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% noncondensing 5 to 95%, noncondensing
Nonoperating temperature – –4° to 149°F (–20° to 65°C)
Operation altitude (derate
1.5C per 1000 ft)
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)
Noise level
(minimum/maximum)
39 dBA for normal operating
temperature (<90°F/32.2°C)
53.5 dBA (@ maximum fan
speed)
47 dBA for normal operating
temperature (<90°F/32.2°C)
57 dBA (@ maximum fan
speed)
44 dBA for normal operating temperature
(<90°F/32.2°C)
53 dBA (@ maximum fan speed)
Regulatory Compliance
Safety UL 60950
CAN/CSA C22.2 No. 60950
IEC 60950
EN 60950-1
AS/NZS 60950
Immunity EN300386
EN55024/CISPR24
EN50082-1
EN61000-6-2