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Article #761

Re: 2 station Token-Ring - problems with setting up.

#761
From: Lon Stowell
Date: Thu, 08 Oct 1992 23:49
24 lines
1624 bytes
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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Message-ID: <183826@pyramid.pyramid.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!ames!decwrl!gossip.pyramid.com!pyramid!lstowell

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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