Hi, dear
As the alarm message "MW_LOF", we can find that the IF board is at fault.
Possible cause:
The ISM6 is in poor contact with the backplane.
The backplane in slot 1 may be faulty.
The ISM6 board may be faulty.
Therefore, you are advised to solve the problem in the following ways:
1. Take out the ISM6 board and insert it into slot 2.
2. Replace an ISM6 board and insert it again.