Troubleshooting

IMPORTANT:

The barcode stuck on the router chassis contains production and servicing information. Before you return a faulty router for serving, provide the barcode information of the router to your local sales agent.

MPU failures

RUN LED is off

When the RUN LED of the MPU is off, it indicates that the MPU is powered off or faulty. For more information about the RUN LED, see Table 20.

To troubleshoot the MPU failure:1.Verify that the MPU is plugged in a right slot.

2.Verify that the router is powered on normally. A green power LED indicates that the router is powered on normally.

3.If the cause cannot be located in the steps above and the problem persists, contact your local sales agent.

RUN LED fast flashes

Five minutes after the router is powered on or the MPU is plugged into the router, if the RUN LED of the MPU still fast flashes at 8 Hz, it indicates that the MPU application program fails to start or the MPU is faulty.

To troubleshoot the MPU failure:

1.Verify that the terminal display is correct.

2.Verify that the application program file properties are correct in the BootWare menu.

3.If the cause cannot be located in the steps above and the problem persists, contact your local sales agent.

ALM LED is steady on or flashes

If the ALM LED of the MPU is steady on or flashes, it indicates that the router is faulty. For example, the ALM LED is on when the system is over-temperature.

To solve the problem, examine the output (such as alarms on the system temperature, power voltage or insufficient power for use) on the serial terminal and the software management tool.

If the cause cannot be located and the problem persists, record the above information, and contact your local sales agent.

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