Serial cable to connect printer to Epelsa

Good night,

i'm experience troubles in connecting a Epelsa equipment (industrial scale) to a Epson printer. the question is that i can't understand the type of cable that is needed. i have the connecting diagram but it's not very clear for me (i don't understand electronics).

I'm seeking help in this group, and will be glad to send the diagram to anyone who could assist me.

I speak portuguese, a litle spanish, and my english is what you see

Thanks
[email protected]