need RFC connection steps in SM59 and it is a interface program.

I have one requirement,pls if any body knows solution,guide me.

My query is,

Actually i want to retrieve text file from different application server means that is JDA server.For this I have used function module as "FTP_CONNECT'.but it is asking RFC destination.but with out rfc destination its not possible to connect to defferent server?.After completion my report again i want to send one text file to that same server.PLs any one knows guide me.its a urgent requirement.pls

Regards,

Jayasankar Goud