7404 interface question

[xlar54]

Hey, so I pulled my 7404 interface out of storage (been awhile).  Found one of my leads needed resoldering...did that, and hooked it up.  Ran a serial line from the interface to the PC, but the PC cant seem to talk to the interface.. nothing.  I cant remember - do I need a null modem interface between the PC and the 7404 interface?  I vaguely remember that I had one, but cant find it. (I would think I would have stored them together if I did need it).  But it makes sense that I would.