Article View: comp.protocols.ibm
Article #761Re: 2 station Token-Ring - problems with setting up.
From: Lon Stowell
Date: Thu, 08 Oct 1992 23:49
Date: Thu, 08 Oct 1992 23:49
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In article <1992Oct8.134820.14855@philabs.philips.com> add@philabs.philips.com (Aninda V. Dasgupta) writes:
>
>- A 9-pin to 9-pin cable that allows me to connect the two adapters on
> the two computers together? Will such a cable work if I don't care
> about the fault detecting relays in a MAU? (What else is a passive MAU
> good for other than the bypass-relays in it?)
It puts an impedance across the xmit and receive pairs. Without
which the ring interface will drop the phantom drive signal and
de-insert.
>
>- A Cheap 2-port MAU (within $250). All the ones I have seen are way over
> my meager budget.
>
I can't imagine why you couldn't BUILD such a device, crossing
over the appropriate wiring pairs and putting the proper
impedance (balanced) across the leads to fake out the cable
fault detection.
>It's so hard to believe that setting up a simple two-station ring requires
>the purchase of so much extra junk that I don't need (read: an 8-port MAU.)
Hey, look at who came up with the idea.....you expect cheap from
IBM? >:-)
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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!ames!decwrl!gossip.pyramid.com!pyramid!lstowell From: lstowell@pyrnova.mis.pyramid.com (Lon Stowell) Newsgroups: comp.protocols.ibm Subject: Re: 2 station Token-Ring - problems with setting up. Keywords: Token-Ring, MAU, DTAU, Onan Box, 9pin-to-9pin. Message-ID: <183826@pyramid.pyramid.com> Date: 8 Oct 92 23:49:19 GMT Sender: daemon@pyramid.pyramid.com Reply-To: lstowell@pyrnova.pyramid.com (Lon Stowell) Organization: Pyramid Technology Corp., Mountain View, CA Lines: 26