7 Jan
2007
7 Jan
'07
2:27 p.m.
The 12551 relay board is a great item.
You get 16 isolated contacts, on opposite sides of the PCB.
Write a word to the I/O slot and you close the relay contacts for each bit
set.
There are also slightly complicated signals for the command and flag flip
flops.
I can get you the pin-outs and specifics on these if needed.
----- Original Message -----
From: "Glen Slick" <glen.slick at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Sunday, January 07, 2007 10:40 AM
Subject: Re: HP HP-2117F on ebay
On 1/6/07, Jay West <jwest at classiccmp.org>
wrote:
That may or may not help, as "12566"
means lots of different things and
doesn't describe an exact board - GRD TRU, + TRU, Microcircuit Interface,
Printer interface... all slightly different variations of the boards
generically marked 12566. In other words, 12566 is not specific enough,
you
need the rest of the letters & numbers after it to know exactly what it
is.
Some of the variations are just different wirings (and in some cases I
think
a different chip or two) giving different electrical characteristics but
the
boards look almost identical to the naked eye. The 12566 boards that I
desire, don't look anything like the "normal" 12566 boards. The ones I
want
are labled 12566-60032 and have boatloads of dip jumpers on them, no
solder
jumpers.
I didn't realize there was much difference between the boards other
than the obvious GRD TRUE vs +TRUE versions. I checked and I have
some 12566-80024 +TRUE, some 12566-80024 GRD TRUE, but only one
12566-60032 Microcircuit. What makes that version specially suited to
your applications?
I also have some 12551-8001 Relay Out boards and then some 11629-6001
44 BIT GPO boards for which I cannot find any information.
-Glen