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Updated the Workaround/Solution Section. Removed the How to Identify Hardware Levels and Upgrade Program Sections.
Initial Public Release
Cisco ASR1000 1600w AC Power Supply
Cisco ASR1000 1600w DC Power Supply
A defect has been identified in a subset of the ASR1013/06-AC(=) and ASR1013/06-DC(=) power supplies that can result in intermittent failure of a power supply unit.
Power supplies ASR1013/06-PWR-AC(=) and ASR1013/06-PWR-DC(=) shipped from June 2011 to June 2012 might fail over time due to corrosion on the board-to-board connector.
The ASR1000 product family has redundant power supplies, so the system will not have a functional failure until two power supply units within the same zone fail. Show commands, syslog messages, and SNMP traps are available in order to detect failures of individual power supply units so that they can be replaced in a timely manner in order to prevent a system down situation.
The ASR1000 power supply is a redundant system with integrated fans. The router will be fully functional if one of the power supplies fails. However, the power supply is required to be plugged in for the integrated fans in order to provide cooling for the system.
The end-user will see one or more of the power supplies in the system intermittently cycling off and on. The problem might take many months to develop after the system has been installed and is operational.
The customer can complete these steps in order to confirm that the power supply is off or has failed:
- Check that the power supply switch is turned on.
- Check that the power supply Vin is in the expected range (121V AC in the example).
- Check the power supply Vout value.
Router>show env summary
Number of Critical alarms: 0
Number of Major alarms: 0
Number of Minor alarms: 0
Slot Sensor Current State Reading
---- ------ ------------- -------
4 V1: VMA Normal 1069 mV
[... Other Sensors ...]
P0 PEM Iout Normal 12 A
P0 PEM Vout Normal 11 V AC <-This PS is ok (Vout should be 11 V or 12 V)
P1 PEM Vout Normal 2 V AC <-Vout should be ~ 11V or 12V, This PS has failed
P1 PEM Vin Normal 121 V AC <-Vin is OK
P3 PEM Vout Normal 0 V AC <-This PS is not plugged in
P3 PEM Vin Normal 1 V AC <-Vin is out of range
P3 Temp: PEM Normal 21 Celsius
P3 Temp: FC Fan Speed 65% 22 Celsius
[... Other Sensors ...]
Request a Return Material Authorization (RMA) through your normal support process for fix on failure.
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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