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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

1257.0. "DETTR TP to AUI adapter use on DECbridge 900MX" by STRWRS::KOCH_P (It never hurts to ask...) Thu Jul 28 1994 20:06

    I have a customer who want to use the DECbridge 900MX to connect
    multiple thickwire backbones together. In order to do this, they need
    more than 2 AUI ports. I though we could use the DETTR-BA to adapt the
    twisted pair ports back to AUI, but on calling DECSALE, I was told this
    was not supported. Can someone please tell me WHY it isn't supported?
    Is this simply because this configuration hasn't been tested &
    qualified?
T.RTitleUserPersonal
Name		DateLines
1257.1BIS5::RUTTENSFri Jul 29 1994 07:1111
    I think it is because the DETTR is not a NAC-product.
    This product is the result from the ALPHA-systems group.
    I don't know if it is still the case but orriginally we had some ALPHA-
    systems who had only ethernet-tp outputs. To allow these systems to
    connect to other media types DETTR-**'s were included.
    
    DETTR is a Allied Telesis repeater: DETTR-BB = AT-MR121T  (RJ45-AUI)
    					DETTR-AB = AT-MR122T  (RJ45-BNC)
    
    P.
1257.2STRWRS::KOCH_PIt never hurts to ask...Fri Jul 29 1994 12:042
    So, the question is, who would be responsible for certify this for this
    type of application?
1257.3BIS5::RUTTENSFri Jul 29 1994 13:2514
    I have proposed this to a customer to convert/repeat his RJ45 to BNC on
    the DB900MX. The question is, what does NOT SUPPORTED mean ? That it
    doesn't work ? I doubt it.
    I think you can bring the problem back to a "it's not our product, we
    don't support it" attitude.
    One thing that you have to take into account is that it adds a repeater 
    in the repeater count. 
    
    The other option is to use the E0-TWIST-01, wich is also a convertor but
    it uses a separate calculator-like powersuply. So this isn't the most
    elegant solution. You can find this option in the Open DECconnect
    Application Guide (p.5-35).
    
    Rgds.....p.
1257.4STRWRS::KOCH_PIt never hurts to ask...Fri Jul 29 1994 15:152
    "Not supported" means if there is a problem, Digital won't investigate
    a solution to the problem...