1. At first login to U2000 using user name and password which must NM or higher level access privilege. 

2. Copy the NE database backup file db_pck.gz from the NMS server to the \db directory in the USB flash drive.There should not be any file related to NE.

3. Copy the RTN.CER file of the NE to the root directory of the USB flash drive.

4. Insert the USB flash drive to the USB port on the OptiX RTN 310.

5. The indicator blinks green, goes off, blinks green, and turns steady green. Remove the USB flash drive. 

Now, Database is restored successfully from USB flush drive. 

thanks for sharing bro

Good post. Very clear