HP 98046b serial interface

[sleibson]

Hi Tom,

I designed the 98036A and wrote the Systems Programming ROM that went with it (but is not required). The 98036A is the only serial card that works with the 9825 (any version). The 98046B was designed specifically for the 9845 to handle more complex synchronous serial protocols and it needs a language ROM in the 9845 to work while the 98036A was designed to operate like a simple parallel I/O card (i.e you can print to it). The Systems Programming ROM extends the abilities of the 98036A and adds a few other interesting capabilities like "store A$".

A company called Filtronetics has listed a 98036A for many years as a used sale item and may still have one to sell you:

http://www.filtro.net/about-us/equipment.htm

I successfully bought an I/O card from them years ago. I bought back a lot of the things I designed at HP over the years, mostly from eBay.

Good luck!

--Steve