23 Dec
2001
23 Dec
'01
12:17 p.m.
Steve Robertson wrote:
Sure, but you'll need something running on the box to talk to the terminal..
I do know that the BCS/SIO/Paper Tape stuff on Jeff's site will talk to
the buffered TTY interface, but don't know about the HS card...
I'll sent it directly to you...
Most of the cards in the machine you ahve are pretty good -- the
HS terminal will let you connect to a crt or a serial PC port with
a terminal emulator...
I did find a HP cable with a 24 pin card edge connector on one end and a 25
pin D connector on the other. The 25 pin connector only has a few pins in it
(typical of HP serial cables) including 2, 3, 7, 13,and 25. I traced the
wires back to where they would appear on the HS terminal card and it appear
that I have the right cable for the box. At least I won't have to kludge
togerther a cable. WhooHoo.
I have plenty of dumb terminals laying around including a number of old HPs.
So, based on your message, it sounds like I have everything necessary to
make the computer "talk" to a terminal. If you would like, I can send you a real short
program
that you can key infrom the console that makes the
lights blink...
This would be great!
Another question: I'm assuming the placement of the cards in the cage
determines the "Address" or LU of the card. Does it matter which slots the
cards go in or is there an accepted standard for this? Which slot does the
HS terminal card (console) go in?
Yes. The slots are numbered, from 10B to 25B (In a 2100 anyway, the MX
may have more slots, but I don't thinks so... The B means Octal...) The
highest priority slot is 10B, and you won't want any empty slots between cards
or between 10B and the first card...
On Jeff's site, look at:
http://oscar.taurus.com/~jeff/2100/2100ref/index.html
The 21MX is a "bigger,better" 2100 (it has additonal instructions)
but the IO system is quite similar...
Thanks Again,
SteveRob
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