Serial Keyboards on eBay...

[Lyle Bickley]

I recently restored a system that required a TTL serial keyboard. I 
initially "hacked" a setup using a VT520 (RS-232) with a "SchmartBoard" 
RS-232 to TTL converter.

Then I found several Keytronic RS-232 serial keyboards on eBay from a single 
vendor. After reading the specs, I found the keyboard supports both RS-422 
and RS-423 by jumper settings. The default setting is RS-422 - which means 
that one can use "one-side" of the differential output as TTL serial. It also 
defaults to 300BPS - which is what I needed. (The specs say it can do 9600BPS 
as well).

For those who care, the keyboard is "driven" by an 8048 8-bit microcontroller.

I bought four of these keyboards in a previous auction from the same vendor 
and they are in excellent condition. He now has them listed again as item 
#300237350802. Starting bid is $9.95...

Regards,
Lyle
-- 
Lyle Bickley
Bickley Consulting West Inc.
Mountain View, CA
http://bickleywest.com

"Black holes are where God is dividing by zero"