PDP11/15

From: Marvin <marvin_at_rain.org>
Date: Sun Aug 24 11:43:34 1997

Tony Duell wrote:

> >
> > Tony Duell wrote:
> >
> > > Maybe I should write a HOW-TO on linking RS232 devices to current-loop
>
> > > ports.
> >
> > I have a couple of LA-36s DECWriters that can use either RS-232 or
> > current-loop. When I got my first LA-36, I owned a printed circuit
> board
> > shop. After looking at the RS-232 to current loop adapter board, it
> looked
>
> Watch out, this fooled me once years ago...

> The RS232 card is, indeed, a 1488 and a 1489, but it's not going to a
> current loop on the other side.

Ah so, thanks for that info! My recollections are that current loop is
available on the LA-36 and I was *assuming* that is where the signal source
came from to the RS232 card.
Received on Sun Aug 24 1997 - 11:43:34 BST