Weird stuff has a TI 810 (also if anyone has token ring wiring)

[Dave Mitton]

RE: Token Ring

    As said below, you can probably not worry too much about the 
wiring impedance (etc.) for a small ring.
But you will still need a MAU or something like it.

The token ring adapters have a physical layer protocol for ring 
insertion and token monitoring.
The power-up state for a station wire is a physical loopback and it 
will try to successfully loop itself before inserting.

A copy of the newsgroup comp.dcom.lans.token-ring FAQ still lives at 
http://www.networkuptime.com/faqs/token-ring/index.shtml
Connector pinouts and other info is in there.   Stuff on Wikipedia too.

I had to dust off a few neurons to remember this stuff.
Dave.

I'm not reading this list consistently anymore... any direct 
questions should be CCed to me.

On 5/18/2015 01:00 PM, cctech-request at classiccmp.org wrote:
>Date: Sun, 17 May 2015 12:58:20 -0400
>From: Sean Caron <scaron at umich.edu>
>To: "General Discussion: On-Topic and Off-Topic Posts"
>         <cctalk at classiccmp.org>
>Cc: Sean Caron <scaron at umich.edu>
>Subject: Re: Weird stuff has a TI 810 (also if anyone has token ring
>         wiring)
>Message-ID:
>         <CAA43vkUJ7US+72OiYhEtrvOgM76u0tUv55wqAP65R21otLkbEg at mail.gmail.com>
>Content-Type: text/plain; charset=UTF-8
>
>I can tell you from firsthand experience that if you're just doing short
>little runs within a vintage computer room in your home or something like
>that, you can directly pin the 9-pin D-sub over to 8P8C and make short runs
>with common unshielded Cat V cable and it should work fine. I did this all
>the time when I was in high school to connect old MCA PS/2 machines with
>the IBM token ring adapters (9 pin D-sub) to various old 8P8C MAUs that I
>had acquired. I can't speak to dealing with those funky IBM connectors;
>never worked with those.
>
>Best,
>
>Sean
>
>
>On Sun, May 17, 2015 at 12:50 PM, Dave G4UGM <dave.g4ugm at gmail.com> wrote:
>
> >
> >
> > > -----Original Message-----
> > > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> > jwsmobile
> > > Sent: 17 May 2015 16:30
> > > To: General at classiccmp.org; Discussion at classiccmp.org:On-Topic and Off-
> > > Topic Posts
> > > Subject: Weird stuff has a TI 810 (also if anyone has token ring wiring)
> > >
> > > There is a white cased TI 810 at Weird Stuff in the AS IS room. Probably
> > > cheap.  Of course unknown condition.
> > >
> > > Got some very nice Token ring equipment from an IBM facility of some
> > sort.
> > > will be using for Hercules setups.
> > >
> > > I'll need some balun's for the RJ45 (ibm version) to the DB9 if anyone
> > has an
> > > idea of the hookup.  I'd like to figure out if I can wire this w/o using
> > the token
> > > ring cables, since I have what appears to be a bridge unit. I'll have to
> > research
> > > that though.
> > >
> > > Thanks
> > > Jim
> >
> > Jim,
> >  Is there a part number on the "bridge" unit? Typically the IBM units just
> > switch the stations it and out of the ring.
> > Dave
> >
> >


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