25 Feb
2008
25 Feb
'08
6:35 p.m.
Ok.
USB solution:
http://www.ftdichip.com/Products/EvaluationKits/TTL-232R-WE.htm
One could just get an 8 pin din connector 806-KMDAX-8P from Mouser,
take out the MAX232 on the board (and its caps),
put that connector on the FTDI cable, and hook it up.
Do NOT forget to change the power consumption setting in the FTDI
descriptor. The keyboard is speced for 500mA, the FTDI connector for
90mA. Which is technically above the USB power consumption...
But I think removing the MAX 232 makes the keyboard consumption less.
Which means though, that you'd have to use a powered hub!
Maurice
Paxton Hoag wrote:
I didn't
find a lot of information from IBM support on the 6094 - but
I did get some. I have uploaded a old copy of IBM's RS/6000 Graphics
Handbook which describes the IBM 6094 LPFK. The LPFK information is
found in section 4.5.
The good news - in can be attached to a serial port on an RS/6000 or
PC - which means that it shouldn't be difficult to find the protocol
for the critter.
I wonder who made it? I got the second lot so anyone can have as many
as they want. One of those in the new lot is supposed to be SGI.
If it is serial how hard would it be to make a USB interface to plug
into the serial port on the keypad?
I just took a quick look and it looks like the same pinout (DIN?) as
an Apple Serial Cable. The square moulding on the cable keeps it from
plugging in.
Interesting, Thanks Lyle.
Paxton