18 Sep
2000
18 Sep
'00
1:26 p.m.
It's been at least 10 years since my last look at RS422, bit IIRC, there
were two connectors involved in that spec. There was a DC37 of one geneder
or another, and there was, I believe, a DA15 as well, which was the one with
the differential high-rate signals on it. Does that sound reasonable to
anyone. I know most applications use(d) a subset of this standard but
referred to it as RS-422 only because they used the 5volt differential
signalling-copmpatible drivers, e.g. 26LS32/33, MC3486/87, etc.
Does this ring a bell with anybody?
Dick
----- Original Message -----
From: Cameron Kaiser <spectre(a)stockholm.ptloma.edu>
To: <classiccmp(a)classiccmp.org>
Sent: Monday, September 18, 2000 3:48 PM
Subject: Re: RS-422 gender benders
This
amount
> On this list it seems to be the extra-long TX15
Torx driver that you
need
to undo the
top 2 screws (the ones inside the handle) of a classic-Mac.
*And* there's some Torx screws on the inside, at least in this SE/30, that
also need the extra-long shaft.
> I've seen another tool called a Mac Cracker (or a Mac Case Cracker). was a special
pair of pliers with wide (about 4" wide) thin, flat blades
in place of the jaws. You took out all the screws and put this tool in
the crack between the front case and the back shell. Squeezing the
handles caused the blades to force the case apart.
I've never bothered with one. In my experience, after removing all the
screws (not forgetting the one under the battery cover), put the machine
face down and press on the battery and on the connectors. Once the case
starts to move it'll come off easily.
Yeah, this I've seen also. It was totally unnecessary. Any reasonable of care and the case will slide right off with a
minimum of effort.
--
----------------------------- personal page:
http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University *
ckaiser(a)stockholm.ptloma.edu
-- A dean is to faculty as a hydrant is to a dog. --
Alfred
Kahn --------------