如題

The temperature of the RUG/RUS/RRUS is in the non-destruction range. The fault ceases when the temperature comes back within the exceptional-operation range.

In the non-destruction range the RUS/RRUS takes autonomous actions to protect itself from being damaged. No function is guaranteed. When the fault ceases the system restart the RUS to ensure functionality.

In the exceptional operation range the RUS has full functionality and degraded performance.

The likely causes of this fault are as follows:

If the fault is issued together with a fan fault, then the most likely cause of the fault is a faulty fan unit.

If the alarm is raised on only one RUG/RUS/RRUS, then it is likely that the unit has developed a fault, in which case it is likely that another fault also has been issued for that unit.

If several units from different subracks have issued the fault, then the most likely cause is a fault at the site, in the RBS air-conditioning or in the cooling system.

 解決辦法：

Test the climate system.

Reset the RUG/RUS/RRUS.

Use the OMT function Check IDB to identify hardware/IDB inconsistencies

Replace the RUG/RUS/RRUS.