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  • Re: I shall call him - Mini-MAU

    From IBMMuseum@21:1/5 to All on Sun Jan 2 01:06:26 2022
    Reviving a long-dead thread - what would it take to make a 'mini-MAU' now? - RJ45 connections, a passive device much like a scaled-down 8228.

    --- SoupGate-Win32 v1.05
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  • From Grant Taylor@21:1/5 to IBMMuseum on Sun Jan 2 11:42:30 2022
    On 1/2/22 2:06 AM, IBMMuseum wrote:
    Reviving a long-dead thread - what would it take to make a 'mini-MAU'
    now? - RJ45 connections, a passive device much like a scaled-down 8228.

    My understanding is that you can't make a /purely/ /passive/ MAU in that
    the ring opens and closes as part of testing during insertion into the ring.

    I think I've read that you can approximate it, but it's really a hack at
    best.



    --
    Grant. . . .
    unix || die

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From IBMMuseum@21:1/5 to All on Sun Jan 2 12:47:46 2022
    Reviving a long-dead thread - what would it take to make a 'mini-MAU'
    now? - RJ45 connections, a passive device much like a scaled-down 8228.
    My understanding is that you can't make a /purely/ /passive/ MAU in that
    the ring opens and closes as part of testing during insertion into the ring. I think I've read that you can approximate it, but it's really a hack at best.

    [Retracted] showed me a picture of the inside of an 8228 - definitely more complex than I thought. So I'm looking (and probably Kevin Moonlight too) for an 8226 I guess. Maybe for where it falls for the Canadian-U.S. border so we aren't fighting over one
    unit.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Grant Taylor@21:1/5 to IBMMuseum on Sun Jan 2 17:54:56 2022
    On 1/2/22 1:47 PM, IBMMuseum wrote:
    [Retracted] showed me a picture of the inside of an 8228 - definitely
    more complex than I thought. So I'm looking (and probably Kevin
    Moonlight too) for an 8226 I guess. Maybe for where it falls for the Canadian-U.S. border so we aren't fighting over one unit.

    I think that it is possible to make a minimal MAU that supports the
    insertion testing that is necessary to have two Token-Ring hosts talk to
    each other a la. a two port MAU. ;-)



    --
    Grant. . . .
    unix || die

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to Grant Taylor on Sun Jan 2 19:04:39 2022
    I have tracked down the Texas Instrument datasheets for the 380 T/R
    chipset. I have seen images of the 8228-like relays and R-C stuff.

    So, you wanna be a Token Male?

    On 1/2/2022 18:54, Grant Taylor wrote:
    On 1/2/22 1:47 PM, IBMMuseum wrote:
    [Retracted] showed me a picture of the inside of an 8228 - definitely
    more complex than I thought. So I'm looking (and probably Kevin
    Moonlight too) for an 8226 I guess. Maybe for where it falls for the
    Canadian-U.S. border so we aren't fighting over one unit.

    I think that it is possible to make a minimal MAU that supports the
    insertion testing that is necessary to have two Token-Ring hosts talk to
    each other a la. a two port MAU.  ;-)




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