Subject: Re: rescuing a dec 5100
To: Toru Nishimura <nisimura@itc.aist-nara.ac.jp>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-pmax
Date: 01/09/2001 09:33:36
On Tue, Jan 09, 2001 at 03:45:54PM +0900, Toru Nishimura wrote:
> >> - where should I connect the serial console ? There are 3 dec rj11-like
> >>   connectors, and 1 db25.
> >
> > The console is port 3, 9600/8n1.
> 
> DECsystem 5100 has serial console on port #0.  This assignment is different
> from most other DECstations.  Digital had a custom for desktop systems
> like as;
> 
> 	port #0		LK keyboard
> 	port #1		VS mouse
> 	port #2		communication, w/ modem control signals 
> 	port #3		printer, w/ or w/o modem control signals
> 
> For headless configuration, port 3 will be serial console. Some of DEC
> models (VAXstation or TC Alpha) have "S3" switch to force to have
> serial console on port 3.
> 
> The release note of "ULTRIX and UWS Version 4.3" has a definite figures
> describing how DECsystem 5100 serial ports are labeled.  The point is,
> 5100 port numbering is twisted and it's very hard to understand w/o
> figures.
> 
> Figure 2-1 tells, facing to 5100 backplate there are three DEC MMJs
> and one DB25.  ULTRIX does number them as "3, 1, 0, 2" from left to
> right.  DB25 is numbered 2 and the doco tells modem capable.  The MMJ
> left of it is 5100 console and numbered 0.

Yes, that's it. But it's labeled '3' on the box (the MMJ are labeled 1,2,3
on the box from left to rigth, no label for the DB25).

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
--