RBS Fault alarm on DXU of Slave RBS cabinet of 777 Expansion

[luganomu]

Hi expert


There alarm called RBS fault is appearing on DXU card of Slave cabinet of 777 Expansion and The master RBS cabinet has no alarm at all. please can some one let me the

1.Possible cause of the Alarm
2.KPIs that Can be Affected by this Alarm
3. How to resolve the alarm

Thanks

LG//