RS-422 gender benders

From: Eric Smith <eric_at_brouhaha.com>
Date: Mon Sep 18 17:55:27 2000

"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.
Received on Mon Sep 18 2000 - 17:55:27 BST