| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE | 
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 | 
| Moderator: | NETCAD::COLELLA DT | 
| 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 | 
    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.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 1257.1 | BIS5::RUTTENS | Fri Jul 29 1994 03:11 | 11 | ||
|     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.
      
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| 1257.2 | STRWRS::KOCH_P | It never hurts to ask... | Fri Jul 29 1994 08:04 | 2 | |
|     So, the question is, who would be responsible for certify this for this
    type of application?
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| 1257.3 | BIS5::RUTTENS | Fri Jul 29 1994 09:25 | 14 | ||
|     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.
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| 1257.4 | STRWRS::KOCH_P | It never hurts to ask... | Fri Jul 29 1994 11:15 | 2 | |
|     "Not supported" means if there is a problem, Digital won't investigate
    a solution to the problem...
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