Serial Terminal cables

I have two old terminals with 2 25 pin connecters on the back, Port A
and B. Unfortunately I have no cables or adapters with these and so I am
trying to make a 25pin to cat5 to 8pin with two of those unassembled
connecters you can get from frys ammong other things. My main problem is
that I simply cant find what the pinouts are supposed to be for this
terminal, I cant even find the company who made them online. Its a Falco
Data Products INC. F5000 series serial terminal. So do these things have
any kind of standard or anything ? or some way I could hack it together?

Thanks