DataSnap with FireDac

In an application with DataSnap, I used SQLConnection :

procedure TForm1.Button1Click(Sender: TObject);
var ConectaServidor : TUClasseServidorClient;
begin
 ConectaServidor := TUClasseServidorClient.Create(SQLConnection1.DBXConnection);
 try
     ShowMessage(ConectaServidor.mostrarTexto(Edit1.Text));
 finally
     ConectaServidor.Free;
 end;
end;

But now I need to use FDConnection and I need to know what its parameter is equivalent to the SQLConnection DBXConnection :

ConectaServidor := TUClasseServidorClient.Create(FDConnection1.parâmetro);