+3.3 V+12 VDCOutput Voltage
3.3012.00Nominal
3.4012.20Maximum
Output Current
0.10 A2.0 AMinimum
3.125 A39 AMaximum
Any combination of output voltage/currents cannot exceed total power rating of 470 Watts.Note
+24 VDC Power Supply Important Notices
The following items list important notes regarding the +24 VDC power supply in the Cisco ASR 1002 Router:
• Output Voltage Alarm Threshold—The Output Voltage Alarm is declared when the output voltage is
below the low end of the minimum or above the high end of the maximum limits (as shown in the
following table). When the output voltage is above the high end of the minimum or below the low end
of the maximum limits, then the Red state is not activated.
Table 31: +24 VDC Output Voltage Alarm Threshold Ranges
MaximumMinimumOutput
12.8-13.8V10.0-11.2V12V
None
2.6 – 3.0V
3.3V
• Temperature—If a single fan fails, the power supply meets the functional requirements specified in
Table 24. Above 55°C with less than two fans, calculated MTBF does not apply; however all component
stress remains within the manufacturer’s specified rating.
• Thermal Shutdown—The +24 VDC power supply will shut down to protect its components due to
excessive internal temperature. The +24 VDC power supply then automatically restarts if the internal
temperature returns to a safe operating level.
Cisco ASR 1000 Series Router Hardware Installation Guide
75
Cisco ASR 1000 Series Routers Component Overview
Cisco ASR 1002 Router +24 VDC Power Supply
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