[rescue] Interface info for IBM Dials and Buttons boxes?

[Corda Albert J DLVA]

As far as daisy-chaining these things, I don't see how that
was possible with these particular units (6094 020 and 6094 010)
unless a special cable was used, as both only have a _single_
mini-din female connector.

The buttons box does appear to have lights (apparently
2 different color LEDs) under each button, so perhaps this
is the LPFK that is refered to below? Anyone know what the
difference was?

Also, the buttons box has a small slide switch on the
underside with two positions.  One position is marked
with what appears to be a zig-zag line (lightning bolt?)
and the other position is marked by a loop with arrows
superimposed on it.  Anyone have any idea what the
switch was for, and which position it should be in for
simple RS232 Operation?


-al-
-acorda at 1bigred.com
 

> -----Original Message-----
> From: Eric Webb [mailto:ttlchaos at randomc.com]
> Sent: Thursday, February 21, 2002 8:48 PM
> To: rescue at sunhelp.org
> Subject: Re: [rescue] Interface info for IBM Dials and Buttons boxes?
> 
> 
> On Thursday 21 February 2002 08:23 pm, you wrote:
> >
> > > When I last looked at the book for these things I 
> remember seeing that an
> > > RS-232 port came in there somewhere in addition to the 
> tablet port.  Now,
> > > where did I see that book at....
> >
> > RS/6000's usually have two DB25 serial ports along with 
> their Keyboard,
> > Mouse, and Tablet ports.  There are also add-in cards for 
> 4, 8, 16, 64, or
> > 128 (!) coprocessed serial ports.
> 
> Well, yeah, I realize all that.  What I'm saying is that I 
> saw a diagram that 
> displays connecting the dials device via BOTH the tablet and 
> RS-232 ports, 
> i.e., you may not be able to do a full daisy chain for 
> everything via the 
> tablet port alone.
> 
> What I found was a couple pages out of the Adapters, Devices 
> and Cable Info 
> for MCA-Bus Systems book.  It shows some connection diagrams, 
> but they take 
> into account the LPFK (Lighted Programmable Function 
> Keyboard).  May not be 
> of any help here yet, but at least I found what I remembered 
> reading about 
> the dials device in.....
> 
> BTW, what is an IBM RT PC?  Anything at all related to RS/6K's?
> 
> 
> Eric
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