It's very simple, goto NWA and point the data-supplier to solman's SLD.
Once you get the information in solution manager of this technical system, chnage the settings in NWA in your PO system to old SLD where it was pointing.
Or, sync your old SLD with that of solution manager, i.e. from PO to solman.
Or, Add this SLD in solution manager and connect to LMDB with a lower rank that you have for local solman's SLD.
Regards,