Analysis of the POWER_FAIL Alarm on the OptiX OSN 6800 and Solution

The SCC board reports the POWER_FAIL alarm due to a battery failure.

Product

OptiX OSN 6800

OptiX OSN 3800

Fault Type

System and Communication Unit

POWER_FAIL

Symptom

During commissioning of the OptiX OSN 6800 in a pilot project, the SCC board reports the POWER_FAIL alarm.

Alarm Parameters (hex): 0x05 0xff 0xff 0xff 0xff

Cause Analysis

The OptiX OSN 6800 is new equipment and several OptiX OSN 6800 NEs have this alarm. It is suspected that the power module is faulty.

After cutting off the power of the OptiX OSN 6800 then power on, the equipment time and date information is lost and changes to the initial time and date, that is 1990-01-01 00:00:00. Then, the battery on the SCC may be faulty.

Procedure

1. Remove the SCC board and check the jumper that controls the battery. This jumper is found in an incorrect state.
2. Change the state of the jumper so that the battery works.
3. Insert the SCC. The POWER_FAIL alarm is cleared.
4. Reset the date and time.
5. Reset the equipment and the time and date information is not lost. The problem is solved.

Reference Information

The jumper is to be set before delivery, the setting on sit is not required to be fixed normally.

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How to do when Bit Errors Occur in Lower Order Path Due to Improper Grounding

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