Sabe,
Do you know where or what you read in regards to linking RFSA/RFSG via LAN? I'm not exactly sure what kind of link or configuration that would be referring, so any direction you can give would help me get down to what you're looking for.
In general, PXI controllers can be networked together in the same manner as any other standard computers. If you just wanted to connect them together and setup a network, then with the right file sharing settings, you could pass files back and forth. Were you looking to just network two controllers together or do more detailed control or streaming through Ethernet?
Timothy S.
Senior Technical Support Engineer