Hi,
If i understand your requirement correctly you want to import the data from one db to another db using network link. If so this is what you need to do

From target db,
create a db link to source db. To any schema which has got proper privs.

impdp \"/ as sysdba\" directory=IMPDP_DIR NETWORK_LINK= SCHEMAS=SCOTT LOGFILE=SCOTT.log

Regards,
Satheesh Babu S
http://satheeshbabus.blogspot.com/