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Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
OL-23778-01
Chapter 1 Introduction
Environmental Monitoring Temperature Sensor
You can use connector A or B or both.
Environmental Monitoring Temperature Sensor
The Cisco ASR 901 router has a temperature sensor to detect overtemperature conditions inside the
chassis. The overtemperature detection trips at 70°C. This condition is reported to the processor as an
interrupt, where the software generates the appropriate alarms. If the router reaches a temperature of
85°C, the power supply cycles itself to prevent the router from exceeding the maximum temperature
while being powered up.
System Specifications
Table 1-3 lists the system specifications for the Cisco ASR 901 router.
Pin Connector B
1 VDC (-24 to -60)
2RTN
3 Chassis Ground
Table 1-3 Cisco ASR 901 Router System Specifications
Description Specification
Dimensions (H x W x D) 1.7 x 17.5 x 8.3 in. (43.2 x 444.5 x 211 mm), 1 RU (rack unit) in a
19-inch (48.3 cm) rack
Weight
• A901-12C-FT-D and A901-4C-FT-D: 8.15 lb (3.7 kg)
• A901-12C-F-D and A901-4C-F-D: 7.93 lb (3.6 kg)
Console and Auxiliary ports RJ-45 connector
Operating Temperature Operating temperature range is -40°C to +65°C (-40 to+149°F)
Non-Operational Temperature Temperature: -40 to 70 degrees C (-40 to 21.1 F)
Operating Humidity 10% to 85%, noncondensing, ±5%
Non-Operational Humidity Upto 93% RH
Operating Altitude 13,000 ft (4000m) maximum 104°F (40°C) ambient
Operating Vibration 0.15 G, 10 to 500 Hz/100 minutes per axis
Non-Operational Vibration 0.8 G, 10 to 500 Hz/30 minutes per axis
Operating Acoustics 66 dBA with 23 cfm fan
Air Flow Left to Right, 46 cfm