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Cisco ASR 901 10G Series Aggregation Services Router Hardware Installation Guide
OL-28105-02
Chapter 1 Introduction
Environmental Monitoring Temperature Sensor
Figure 1-4 Power Supply Connector Pinouts
Environmental Monitoring Temperature Sensor
The Cisco ASR 901 10G 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
90°C, the power supply cycles itself to prevent the router from exceeding the maximum temperature
while being powered up.
Note Auxiliary port is not supported.
Table 1-3 Power Supply Connector Pinouts (-24/-60 VDC Application)
Pin Connector A Connector B
1 VDC (-24 to -60) VDC (-24 to -60)
2RTN RTN
3 Chassis Ground Chassis Ground