BBU Board Maintenance Link Failure

BBU Board Maintenance Link Failure

This alarm is reported when the maintenance link between the main control board and the other boards in the subrack malfunctions.

main causes for this alarm:

?The board automatically resets because of memory soft failure or software program error.

?The board file system is being formatted due to errors.

?The board does not exist or is not securely installed.

?The board hardware is faulty.

?The board is powered off.

?The hardware of the main control board (in the subrack that houses the board) is faulty.

If this alarm appears, then we understand that the board may not work normally. The ongoing services carried on the board are disrupted.

Some times huge call drop persist and MPD became very low when alarm happening very frequently.

useful for new learner thanks.

Excellent.