Hi
Intel series II used a parallel keyboard.
I use a keyboard on my Poly8813 that came from a Franklin. It
was purchase as new-old-stock from ebay. I'd gotten two but passed
one on to another. It is nice because it runs on a 8048 controller
and all is in an eprom that can have the tables changed. I needed
a character that wasn't in the table as a control key. I just editied
the table and changed the eprom.
Dwight