Hello, everyone!
This post will tell you one issue for PIU Board Reports POWER_ABNORMAL Alarm.
Problem description:
The PWRB indicator on the N1GSCC board of the OptiX OSN 3500 is on. The T2000 reports the POWER ABNORMAL alarm. The voltage in the second path is -54 V±20%. After the two power supplies are switched, the alarm is reported on the other N1GSCC board.
Handling procedure:
It is confirmed that the alarm is generated because the incorrect setting of the jumpers on the SCC board is sent to the field.
The J17 and J16 jumpers on the N1GSCC board are used to control the input voltage of the equipment.
Remove the jumper cap: The equipment adopts the power supply whose input voltage is -60V.
Maintain the jumper cap: The equipment adopts the power supply whose input voltage is -48V.
Root cause:
NA.
Solution:
To clear the alarm, re-set the jumpers according to the OptiX OSN 3500 N1GSCC Board Deployment Guide.
That's all, I welcome everyone to leave a message and exchange in the comment area!
Thank you！
