Re: Solarus 8/9 Sparc Questions

Title:

Digi makes a line of terminal servers that have this feature built in.  They
are reasonably priced as well.  I use the Portserver II, but bought them
some time ago, other recently offered products may be a better fit.

http://www.digi.com/products/index.jsp
http://www.digi.com/products/terminal%20servers/portServerII.jsp

Mike Daigle wrote:
> The only solution which I have found that gives satisfactory
> results is the Nudata(TM) Non Aborting Serial Port Adaptor.  This
> is a little black box that cost about $90. It has smarts onboard
> and allows the BREAKs to be sent from a terminal or terminal
> server port. But it monitors the DTR line, if it drops then the
> box blocks all input, thus if a terminal server sends breaks at
> power down they are blocked when DTR drops first. There is a
> timing issue here but it seems to work, I suspect they have a
> transmission delay built in to catch the fault before the BREAK is
> sent but I don't know this for sure.
>
> The beauty of it is that we can still use BREAK to halt the system
> if we want. If the terminal server looses power all our Sun's
> DON'T halt. It would also cover off any problems of the line being
> cut and looking like a break as long as DTR is cut at the same
> time.
>
> The only down side is the price tag.
>
> "John R. Jackson" wrote:
> > > Can someone tell me if Solaris 8 and 9 still goes into the boot monitor
> > > when a break is sent across the serial line?
> > >     
> > Yes, it does.  And what a major pain in the ass that is.
> >
> > This "feature" has been discussed on this list before, but I don't recall
> > seeing a viable solution.
> >
> > > Chris
> > >     
> > John R. Jackson, Technical Software Specialist, ITaP/RCS, jrj@purdue.edu
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> >