Subject: Re: serial console probs
To: Manuel Bouyer <bouyer@antioche.lip6.fr>
From: Chris Tribo <talon16m@hotmail.com>
List: port-pmax
Date: 01/20/2000 16:13:49
on 1/20/00 8:02 AM, Manuel Bouyer at bouyer@antioche.lip6.fr wrote:

> Hi,
> I've been able to steal a DB25 adapter for some time, so I've connected
> by vax to a vt100 and all is well.
> But I'd like to connect its serial console to ttyb of my sun3 and I can't get
> it working. I know ttyb works because I use it for a sparc and hp700 without
> troubles. with the vax I don't get anything. I tried both a simple nullmodem
> cable (only tx, rx, gnd connected) and a complete one, without luck.
> 
> Any idea ?

    My VAX won't talk to anything without all six pins connected. I'm fairly
certain you need to have DTR and DSR connected as well as TX, RX. And don't
forget to tie TX- and RX- together on the DB25. I can give you pinouts of a
known working cable here...

    Chris