I imagine that should work fine. You *MAY* need a null modem adapter, I'm not sure.
I'm using: Apple "modem cable" (female DE-9 RS-422 to male DB-25 RS-232); female to female DB-25 "gender changer"; "unknown" male DB-25 to male DE-9.
I don't know if the "unknown" cable is really a null cable, or if the gender change is maybe really a null modem also; although that would surprise me, as I have an identical looking one labeled 'null modem' (that is male on one side and female on the other.)