> "Richard Erlacher" <richard_at_idcomm.com> wrote:
> > 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.
>
> I think you might be talking about RS-449. AFAIK, RS-422 is ONLY an
> electrical specification, and does not recommend a connector. IIRC,
> RS-449 specifies a connector and the use of RS-422 electrical interfaces.
>
> And then there's RS-485, which is multi-drop (party line) RS-422. No
> connector spec for this one either.
AAAAAAA! Okay, okay, okay, Mac mini-DIN female-female! (lest I precipitate
a standards discussion ... :-)
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University * ckaiser_at_stockholm.ptloma.edu
-- The steady state of disks is full. -- Ken Thompson -------------------------
Received on Mon Sep 18 2000 - 19:42:53 BST